Log in

Relevant bibliographies by topics / Durability of the welded truss / Journal articles

To see the other types of publications on this topic, follow the link: Durability of the welded truss.

Journal articles on the topic 'Durability of the welded truss'

Author: Grafiati

Published: 28 May 2022

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic 'Durability of the welded truss.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

Basara, M., Ya Kovalchuk, and N. Shynhera. "DURABILITY OF A WELDED TRUSS UNDER CYCLIC LOADS." Innovative Solution in Modern Science 5, no. 41 (June 17, 2021): 147. http://dx.doi.org/10.26886/2414-634x.5(41)2020.11.

Full text

Abstract:

The paper presents the results of experimental studies of the durability of a rectangular welded truss. The truss is made of profile pipes with butt joint nodes. A concentrated cyclic load is adopted for the construction, which corresponds to the operating mode of the roof truss with the ways for the bridge crane. The study was performed using the method of semi-natural and computer simulation experiment in ANSYS Workbench 17 environment. It was found that the loss of bearing capacity by the truss during operation occurs due to the fatigue crack initiation in the K-shaped node on the upper chord of the truss. The durability of the truss is determined by the ratio of the parameters of force and time of operation of the truss. The results of the semi-natural and computer simulation experiment were verified and the fatigue damage indicators coincided at the level of 5.7%.Keywords: welded truss, fatigue damage, truss nodes, durability of the truss.

APA, Harvard, Vancouver, ISO, and other styles

2

Kovalchuk, Ya, N. Shynhera, Ya Shved, and V. Voronchak. "Fatigue damage of the heel joint of welded roof truss." Scientific journal of the Ternopil national technical university 99, no. 3 (2020): 28–33. http://dx.doi.org/10.33108/visnyk_tntu2020.03.028.

Full text

Abstract:

The investigation of the welded roof truss behavior under the complex influence of static and cyclic loads is carried out. The truss is made of the shaped pipes and its size is 24000x2400 mm. The technique of computer simulation experiment by means of SolidWorks Simulation software is used. It is found that the maximum stresses are formed in the area of thermal impact from the weld in the truss heel joints. During the truss operation, these stresses initiate the emergence of fatigue cracks and their growth until the structure ultimate state. The fatigue curve for the investigated structure is constructed. It is determined that the design service life of the truss under operational load modes is going to be 52 years.

APA, Harvard, Vancouver, ISO, and other styles

3

Yang, Wenwei, Jiankang Lin, Ni-na Gao, and Ruhao Yan. "Experimental Study on the Static Behavior of Reinforced Warren Circular Hollow Section (CHS) Tubular Trusses." Applied Sciences 8, no. 11 (November 13, 2018): 2237. http://dx.doi.org/10.3390/app8112237.

Full text

Abstract:

For truss structures, the question of whether to weld hidden welds or not has been controversial. In the actual construction process of truss structures, the members are usually spot welded in place on the assembly platform, and then welded as a whole, while the hidden welds of the truss are not welded, especially for small pipe diameter trusses. Furthermore, in this study, under hidden weld unwelded conditions, two kinds of reinforcing method (adding a half outer sleeve on each joint and filling concrete into the chord members) are adopted to achieve the purpose of strengthening the truss. Therefore, this paper presents an experimental study on the static behavior of four types of Warren tubular trusses made of CHS members. These four types are (1) T-HW: The truss with hidden welds welded; (2) T-HN: The truss with hidden welds unwelded; (3) TS-AS: The truss strengthened on the basis of T-HN by adding a half outer sleeve on each joint; (4) TS-FC: The truss strengthened on the basis of T-HN by filling concrete into the top and bottom chord members. The mechanical behavior, failure mode, bearing capacity, and load-displacement of all specimens were investigated. The surface plasticity of the bottom chord member, the weld fracture around tubular joints at the bottom chord member, and the bending deformation of the bottom chord member were observed in the tests. Compared with the T-HW specimen, the load carrying capacity of the T-HN specimen decreased by 18%. On the other hand, the T-HN specimen has better deformability than the T-HW specimen. The reinforcing method of adding a half outer sleeve on each joint and filling concrete into the chord members can effectively improve the load carrying capacity and stiffness of the truss, thus reducing the overall deformation of the truss, but the reinforcing method of filling concrete into the chord members is more efficient.

APA, Harvard, Vancouver, ISO, and other styles

4

Szlendak, Jerzy K., and Adrian Szpyrka. "Resistance of plug & play N type RHS truss connections." Open Engineering 10, no. 1 (July 7, 2020): 563–70. http://dx.doi.org/10.1515/eng-2020-0056.

Full text

Abstract:

AbstractThe article presents concept of II generation N type RHS plug & play truss connection made in non-welded technology. Three connections of the representative truss are analyzed. Resistance calculations of these truss joints, using the component method, are shown. Test results and the theoretical resistance of these connections are compared.

APA, Harvard, Vancouver, ISO, and other styles

5

Jarmai, Karoly. "Optimum design of welded structures." Rakenteiden Mekaniikka 50, no. 3 (August 22, 2017): 326–29. http://dx.doi.org/10.23998/rm.65153.

Full text

Abstract:

This article presents the cost calculation system developed by us to determine the cost of a welded structure. In the paper the design, fabrication and economy are linked together in the optimization system. Two tubular truss applications show, that the reduction of cost can be significant.

APA, Harvard, Vancouver, ISO, and other styles

6

Nuranita, Badriana, Erma Desmaliana, and Kenny Gesa. "Evaluasi Perencanaan Jembatan Kereta Api Rangka Baja Double Track Tipe Welded Through Truss Bentang 50 meter." RekaRacana: Jurnal Teknil Sipil 6, no. 3 (February 25, 2021): 132. http://dx.doi.org/10.26760/rekaracana.v6i3.132.

Full text

Abstract:

ABSTRAKPenelitian ini menganalisis perencanaan struktur atas jembatan kereta api rangka baja double track tipe Welded Through Truss (WTT) dengan bentang jembatan 50 m melalui Gambar Standar Tipikal Jembatan yang ada di lapangan. Analisis dan pembebanan jembatan sesuai kriteria teknis yang mengacu pada Lampiran Peraturan Menteri Perhubungan No. 60 Tahun 2012 tentang Persyaratan Teknis Jalur Kereta Api. Hasilnya dievaluasi dalam nilai tegangan dan defleksi. Hasil analisis menunjukan bahwa terdapat beberapa batang diagonal yang menghasilkan angka rasio tegangan > 1, sehingga perlu dilakukan penambahan tebal profil penampang atau juga menambahkan stiffener pada elemen-elemen jembatan yang kritis. Namun demikian nilai lendutan aktual di tengah bentang sebesar 46,651 mm masih memenuhi syarat karena kurang dari lendutan ijin 50 mm.Kata kunci: jembatan kereta api, welded through truss, PM 60 Tahun 2012, rasio tegangan dan defleksi ABSTRACTThis study analyzed the performance design about the uper structure of typical railway bridge for the 50 m WTT (Welded Through Truss) steel frame railway bridge with double track. Planning criteria refer to Attachment to the Minister of Transportation Regulation No. 60 of 2012 for Technical Requirements for Railroad. The results are evaluated in terms of stress ratio and deflection. The analysis result show that the 50 m WTT (Welded Through Truss) steel frame railway bridge has several diagonal bars that produce a stress ratio > 1, so it is necessary to add the thickness of the cross sectional profile or also to add a stiffener to the bridge structure. However the actual deflection value in the middle of the span of 46.651 mm still meets the requirements because it is less than the allowable deflection of 50 mm.Keywords: railway bridge, welded through truss, PM 60 of 2012, stress ratio and deflection

APA, Harvard, Vancouver, ISO, and other styles

7

van Hove, Dianne, and Frans Soetens. "Numerical/Experimental Research on Welded Joints in Aluminium Truss Girders." Key Engineering Materials 710 (September 2016): 295–300. http://dx.doi.org/10.4028/www.scientific.net/kem.710.295.

Full text

Abstract:

Welded joints in a 30 meter span aluminium truss girder were investigated numerically and experimentally. Since aluminium design rules for welded K-and N-joints in CHS truss girders were lacking the joints were checked using steel design rules. Calculations showed that the N-joints were governing for chord and brace sizes. Further numerical analysis on the N-joints using ANSYS 11.0 was carried out. Full scale experimental research was successfully carried out for validation of the numerical calculations. It is concluded that steel design rules predict the failure behavior and failure mode of the considered aluminium N-joints well. However, steel design rules overestimate the failure load by 8% for the truss configurations investigated.

APA, Harvard, Vancouver, ISO, and other styles

8

Radu, Dorin, and Florin-Teofil Galatanu. "OPTIMIZATION SOLUTIONS FOR TRUSS BEAMS ELEMENTS WELDED JOINTS." Zbornik radova Građevinskog fakulteta 32, no. 29 (2016): 105–11. http://dx.doi.org/10.14415/konferencijagfs2016.009.

Full text

APA, Harvard, Vancouver, ISO, and other styles

9

Yoshida, Shiro, and Neil Bishop. "Michell Truss : Effect of Shape Optimization upon Durability Evaluation." Proceedings of OPTIS 2016.12 (2016): 1103. http://dx.doi.org/10.1299/jsmeoptis.2016.12.1103.

Full text

APA, Harvard, Vancouver, ISO, and other styles

10

Omrani, P., H. R. Mansouri, and A. Pizzi. "Weather exposure durability of welded dowel joints." Holz als Roh- und Werkstoff 66, no. 2 (December 22, 2007): 161–62. http://dx.doi.org/10.1007/s00107-007-0220-6.

Full text

APA, Harvard, Vancouver, ISO, and other styles

11

He, Zhong Shan, and Jia Liu. "Crack Research for Welded Joint of Steel Truss Bridge." Advanced Materials Research 194-196 (February 2011): 104–8. http://dx.doi.org/10.4028/www.scientific.net/amr.194-196.104.

Full text

Abstract:

Steel trusses are often used in the railway bridges.It is known that fatigue cracks may occour in the welded joints under the long-term dynamic loading. If the cracks are not detected and repaired in time, which may endanger the safety of bridges. This paper presents a solid element modeling method by the commercial finite element software package ANSYS, which can be used to model three dimensional cracked joint of bridge structures. Based on this method, the stress intensity factors are calculated. The results show that the modeling method is efficient and has a high precision for the stress intensity factor, which can be used to predict the fatigue life of the bridge.

APA, Harvard, Vancouver, ISO, and other styles

12

Basara, M., Ya Kovalchuk, and N. Shynhera. "Fatigue failure of gusset plates nodes of welded truss." Scientific journal of the Ternopil national technical university 96, no. 4 (2019): 39–44. http://dx.doi.org/10.33108/visnyk_tntu2019.04.039.

Full text

APA, Harvard, Vancouver, ISO, and other styles

13

Dawe, J. L., B. S. Pond, and G. Y. Grondin. "Interaction of shear and tension in welded truss connections." Canadian Journal of Civil Engineering 12, no. 1 (March 1, 1985): 94–103. http://dx.doi.org/10.1139/l85-010.

Full text

Abstract:

In many truss joints consisting of double-angle web members welded to stems of inverted lower chord tee sections, adequate fillet weld lengths may be provided without the need for gusset plates. In such cases where a joint may also be subjected to high combinations of shear and tension, the possibility of overstressing of a tee stem exists. In the investigation of this problem, four analytical techniques, including two proposed herein, and experimental results of 30 full-scale specimen tests, 22 of which were conducted during the investigation presented herein, are presented and evaluated. Analytical and experimental results indicate that the interaction of shear and normal stresses is an important consideration in the design of such joints and that an interaction check is required.Of the many parameters investigated as part of the experimental investigation, the two that most significantly influence the magnitude of tension force that a lower chord can simultaneously carry are the magnitude of applied shear force averaged over the available web shear area and the joint configuration itself. The inclination of a diagonal web member as well as intentional joint eccentricities have little effect on the strength of these joints, although joint ductility appears to be affected by eccentricities.Although all four analytical techniques have similar overall accuracies of prediction, a method based on applying a von Mises criterion at ultimate to determine an equivalent shear area in a tee chord is recommended as being the most suitable. Based on this method, as verified and validated by comparison with extensive experimental results of tests on full-scale specimens, a simplified design curve and associated equations are developed and proposed for design office use. Key words: connection, interaction, shear, tension, welded, truss.

APA, Harvard, Vancouver, ISO, and other styles

14

Ovchinnikov, Victor, Lyudmila Andreeva, Gulnara Latypova, and Irina Klimenko. "Fatigue Resistance of 01420 S Alloy Welded Joints Made by Various Welding Methods." MATEC Web of Conferences 346 (2021): 01013. http://dx.doi.org/10.1051/matecconf/202134601013.

Full text

Abstract:

Fatigue characteristics of welded joints of alloy 01420C made by resistance spot welding and automatic argon arc welding are obtained. The highest durability was shown by welded joints with a longitudinal weld. Joints Produced by resistance welding and simulating the edge line of a reinforced element have a durability comparable to an unloaded weld spot, which in turn is inferior to the durability of a joint with a longitudinal weld. The durability of elements of limited cross-section with repair welding of a mechanical cut is similar to the durability of a standard sample in the form of a strip with a hole.

APA, Harvard, Vancouver, ISO, and other styles

15

Baranovskiy, Mikhail, Vladimir Tarasov, and Sergei Zimin. "The Typical Roof Structure Project Based on Trusses Made of Roll-Welded RHS Pipes Development." Applied Mechanics and Materials 725-726 (January 2015): 774–83. http://dx.doi.org/10.4028/www.scientific.net/amm.725-726.774.

Full text

Abstract:

Standardization and unification of elements, constructions and design solutions is one of the main ways to reduce the complexity and cost of the construction.Standard designs of truss coatings with a 10% slope for 24, 30, 36 meters spans were developed in this article for different load combinations.Stress calculation and truss elements dimensioning was made with the SCAD Office software complex. Then the relationship between the thickness of the section, span and load was defined, and the limits of various sizes of the accepted bottom chord connecting block.Designed series of truss structures with a 10% slope and 24, 30, 36 meters spans covers a range of line loads from 1,3 t/m to 3.3 t/m. In comparison with the truss structures series Molodechno it has a lower metal consumption by reducing the cross section of the upper chords due to vertical elements adding. Transportation of a 12-meter section falls under the category of oversized transportation.

APA, Harvard, Vancouver, ISO, and other styles

16

Authors. "Durability of Truss Connections In A Naturally Ventilated Swine Barn." Transactions of the ASAE 34, no. 2 (1991): 0625–27. http://dx.doi.org/10.13031/2013.31710.

Full text

APA, Harvard, Vancouver, ISO, and other styles

17

Han, Seung Ho, Je Sung Bang, Chae Whan Rim, Kwang Soon Lee, Kwang Ki Lee, and See Yeob Song. "Process Integration of Fatigue Analysis for Welded Bogie Frames." Key Engineering Materials 321-323 (October 2006): 624–27. http://dx.doi.org/10.4028/www.scientific.net/kem.321-323.624.

Full text

Abstract:

The automation of fatigue durability analysis for welded bogie frames according to the UIC-code is proposed by using the ModelCenter, which enables several tools used in fatigue durability analysis to be integrated, i.e. I-DEAS, ANSYS and BFAP, and an iterative analysis of geometrical changes in transom support bracket to be performed. In additions wrapping programs to control I/O-data and interfaces of these tools were developed. The developed automation technique brings not only a significant decrease in man-hour required for durability analysis, but also provides a platform for multidisciplinary engineering activities.

APA, Harvard, Vancouver, ISO, and other styles

18

Wang, Chun Ming, Xin Zhao, Mai Wu, Jun Li Liang, and Zon Gang Gu. "Application of Steel Bar Truss Deck Construction Technology in a Large Steel Project." Applied Mechanics and Materials 368-370 (August 2013): 851–54. http://dx.doi.org/10.4028/www.scientific.net/amm.368-370.851.

Full text

Abstract:

Steel bar truss deck is a kind of combination template which is processed into steel trusses with steel, and welded steel bar truss and galvanized steel sheeting into a whole. It has many advantages such as economical, convenient, safe and reliable, etc. It can withstand the concrete weight and construction loads and installed directly on the steel beam without support at the bottom. This paper introduces the construction technology of steel bar truss deck with Tianjin Museum engineering examples. The technology has made a better construction, and ensured the construction period and the quality of the project in this project.

APA, Harvard, Vancouver, ISO, and other styles

19

Alam, Md Meftahul, Kamrul Hasan, Rashadul Hasan, Md Maksudul Islam, H. M. A. Mahzuz, and Mushtaq Ahmed. "Influence of truss-type and welded reinforcement in concrete beam." International Journal of Structural Engineering 1, no. 1 (2021): 1. http://dx.doi.org/10.1504/ijstructe.2021.10040392.

Full text

APA, Harvard, Vancouver, ISO, and other styles

20

Mahzuz, H. M. A., Mushtaq Ahmed, Md Maksudul Islam, Rashadul Hasan, Kamrul Hasan, and Md Meftahul Alam. "Influence of truss-type and welded reinforcement in concrete beam." International Journal of Structural Engineering 12, no. 2 (2022): 144. http://dx.doi.org/10.1504/ijstructe.2022.121911.

Full text

APA, Harvard, Vancouver, ISO, and other styles

21

Dong, Xue Wu, Yan Ting Wang, Jun Hong Cheng, Xi Zhang, Jian Hui Han, Yan Yan Yang, and Bing Li. "Study of the Vibratory Stress Relief for Large-Scale Parallel Welded Steel Truss." Applied Mechanics and Materials 740 (March 2015): 136–41. http://dx.doi.org/10.4028/www.scientific.net/amm.740.136.

Full text

Abstract:

Parallel welded steel truss component is widely used in construction, tower, bridges, aerospace and other fields. And the welding residual stress is distributed complicatedly in many areas and directions, which will definitely deform the welded steel truss or even crack it. So, it is necessary to do aging treatment to avoid such thing happened, as well as improve the accuracy and reliability. Vibratory stress relief (VSR) is a new kind of technology which may eliminate the residual stress in metal component with high efficiency, energy-saving, environment protection and low cost compared with thermal stress relief (TSR). But its technical effects vary with the vibration parameters. To the parallel steel truss structures, the excitation parameter of VSR is determined by welding residual stress distribution and the natural mode of vibration. The residual stress concentration areas can get enough vibration, if the parallel steel truss component vibrates with different kinds of natural mode of vibration, which will obtain good effect of eliminating stress. Firstly, the inherent vibration mode of parallel welded steel truss component is measured by the modal analysis technology. Secondly, multiple intrinsic modes are chosen according to principle of making all the welding residual stress concentration regions and directions get enough vibration and then main technical parameters are determined such as excitation frequency, excitation point and support point. In this paper, two examples are given out: the specimen 1is treated with the transverse bending vibration mode and torsion vibration mode respectively according to the above method. As for specimen 2, it is treated with 3 exciting frequencies which are located automatically by the vibration aging machine. The residual stresses of the two specimens are measured before and after their vibrations with blind holes method. Results show that after vibration aging, the welding residual stress peak figure of the Specimen 1 is reduced by an average of 48.65% and the mean value of that dropped by an average of 32.50%. Correspondingly, the residual stress peak value of the Specimen 2 shows a decline of 3.38%, its average fell by an average of 2.55%.

APA, Harvard, Vancouver, ISO, and other styles

22

Caprili, Silvia, Walter Salvatore, and Renzo Valentini. "Micro and Macro Structural Investigations on Welded Joints of Composite Truss Steel Concrete Beams." Advances in Materials Science and Engineering 2021 (March 24, 2021): 1–13. http://dx.doi.org/10.1155/2021/6183178.

Full text

Abstract:

The results of an experimental test campaign including micro and macro investigations on welded joints typically used in Composite Truss Steel-Concrete beams are presented. The research was carried out with the aim of assessing the relevance of welding effects on the mechanical performance of different typologies of steel grades that can be used to realize the internal truss steel system, connected to the bottom steel plate used with the double structural and formwork function. Two different steel typologies were adopted for the steel truss: the “traditional” structural micro-alloyed steel, normally used for composite steel-concrete elements, and the typical reinforcing steel with TempCore® structure, achieved through the application of two-phase thermomechanical treatment of quenching and tempering. The interest in the possibility of adopting reinforcing steel for the internal truss arises from its potential economic benefit, finding its justification in the intermediate condition in which this structural typology lies, between composite steel-concrete and ordinary reinforced concrete buildings. Welding has a strong impact on such reinforcing steel material, resulting in relevant drops of ductility and brittle failure usually taking place in correspondence of the heat-affected zone. So, it is advisable to refrain from using such steel grade, especially in constructions in seismic-prone areas, where ductility is a major influencing and design factor.

APA, Harvard, Vancouver, ISO, and other styles

23

Ozyurt, E., and Y. C. Wang. "Effects of truss behaviour on critical temperatures of welded steel tubular truss members exposed to uniform fire." Engineering Structures 88 (April 2015): 225–40. http://dx.doi.org/10.1016/j.engstruct.2015.01.032.

Full text

APA, Harvard, Vancouver, ISO, and other styles

24

Hilman, Nordin, Mohd Hamdi Bin Abd Shukor, Yang Yang, and Ichiro Hagiwara. "Investigation on Spot Welding Effect on Truss Core Panel for Crashworthiness." Materials Science Forum 773-774 (November 2013): 766–75. http://dx.doi.org/10.4028/www.scientific.net/msf.773-774.766.

Full text

Abstract:

One of the main concerns of the automotive industry is reduction in structural weight of automobiles. Reduction of weight on vehicles has been proven to lower the usage of fuel, and therefore save a lot of energy in order to move from one place to another. At the same time, reduction of weight often means reduction in material usage, often regarded to be threatening structural strength of parts, components or vehicles body in white (BIW). Truss Core Panel, which has been developed from the study of origami engineering, specifically plane-tilings and space fillings, is a suitable candidate because it can be produced from thin sheet metals and can be joined using spot welding. In this paper, method for evaluating truss core panels for crashworthiness has been established based previous research on crashworthiness evaluation on thin shells. The effect of different configuration of spot welding has been investigated. The number of spot weld (n) along central member and side members of truss core panel has been varied and modeled from n = 2, 4, 6 ... to n = 30, and compared to a truss core panel model that is fully welded along central member and side members. The results also show that it is possible to attain similar mean crush force to fully welded structure with smaller number of spot welds.

APA, Harvard, Vancouver, ISO, and other styles

25

Yousif, Ismail Abdelrahman, Mohammed Abdelmageed M. Zein, and Mohammed Elhadi Ahmed Elsayed. "Computational Analysis of a Truss Type Fuselage." Applied Mechanics and Materials 225 (November 2012): 183–88. http://dx.doi.org/10.4028/www.scientific.net/amm.225.183.

Full text

Abstract:

The strength of a welded truss type fuselage of a light aircraft – named SAFAT 01 – is considered in this paper. The aircraft is a monoplane with high strut-braced wings configuration with flaps. The fuselage is of welded tubular steel fabric-covered construction. According to its production contract; the aircraft is fully produced and assembled in Sudan whereas the documentation is limited to technical side only with no information available about design procedures and calculations. This makes it difficult to further modify or upgrade the aircraft. The fuselage geometry has been modeled using a CAD program. The main dimensions have been obtained using 2-D drawings and the missing dimensions and data due to lack of documents were extracted experimentally from a built aircraft. Aerodynamic loads were determined using computational fluid dynamic program for the horizontal tail. Static structural analysis was conducted by finite element method (FEM) using fastened connection property between the tubes. The results were observed in three main parts; rear part which supports the vertical and horizontal stabilizers and the rear landing gear; the mid part which provides cantilever reaction for the wing and supports front landing gear, and the front part on which the engine is mounted. The Von Mises stresses, displacements and principal stresses were observed in the three parts and found acceptable except for a small region near the attachment between wing and fuselage. However, further experimental validation is needed. Presently, experimental and dynamic analyses are being conducted and the results will be published later.

APA, Harvard, Vancouver, ISO, and other styles

26

Utomo, Adityo Budi, Iman Satyarno, and Muslikh Muslikh. "STUDI EKSPERIMENTAL KERUNTUHAN RANGKA KUDA-KUDA BAJA RINGAN PADA ATAP RUMAH DAN SEKOLAH." Wahana Teknik Sipil: Jurnal Pengembangan Teknik Sipil 25, no. 2 (December 30, 2020): 126. http://dx.doi.org/10.32497/wahanats.v25i2.2159.

Full text

Abstract:

Increasingly expensive price of quality woods and difficulties of workmanship, it makes people switch from wood to lightweight steel as a roof truss. The use of lightweight steel as truss becomes popular because of the fast workmanship dan durability of the material. Many cases show that lightweight steel truss at school and house collapsed and caused a fatality. This lightweight steel truss study was carried out on a full scale with a span of 6 m and a slope of 300, while the loading test pattern at the placement points of battens was like truss in the community. The goals of this study to measure and observe several parameters including weight, maximum capacity, stiffness, ductility, price, length of work, and failure pattern. From testing, the result shows that lightweight steel truss has dead weight, maximum capacity, stiffness value, ductility value, price, working time, and failure pattern respectively of 21,3 kg,734 kg, 91,18 kg/mm, 2,97, Rp 1.740.000, 2 days, and failure pattern is buckling on the diagonal top chord. The result of this research indicates that lightweight steel truss can be used in the community with the limitation of using metal roof coverings instead of concrete or ceramic and the distance between the truss max 1,2 m.

APA, Harvard, Vancouver, ISO, and other styles

27

Rafikov, S. K., A. P. Vatolin, G. S. Sharnina, and K. V. Kozhaeva. "Analysis of Reliability of Welded Connections Liquefied Gas and Condensate Pipelines." IOP Conference Series: Earth and Environmental Science 988, no. 2 (February 1, 2022): 022053. http://dx.doi.org/10.1088/1755-1315/988/2/022053.

Full text

Abstract:

Abstract To assess the strength and reliability of welded joints, the metal of welded joints of the unstable condensate pipeline was tested for static tension and low-cycle durability. The tests were carried out on defect-free specimens, specimens with defects such as lack of fusion, undercut, single pore, single slag inclusion and specimens with defects combining lack of fusion and undercut. A comparative analysis of the effect of defects combining lack of penetration and undercut and separately located defects such as lack of penetration, undercut, single pore, single slag inclusion on tensile strength and low-cycle durability of welded joints is carried out.

APA, Harvard, Vancouver, ISO, and other styles

28

Siwowski, T. "Fatigue assessment of existing riveted truss bridges: case study." Bulletin of the Polish Academy of Sciences Technical Sciences 63, no. 1 (March 1, 2015): 125–33. http://dx.doi.org/10.1515/bpasts-2015-0014.

Full text

Abstract:

Abstract Many steel riveted bridges have been built in Poland since 1950 and they have not reached their design working lives yet. Nevertheless, a number of fatigue damages are found, especially with structural joints. Moreover, in the past 25 years the traffic on the Polish road network has increased significantly leading to the increasing number of heavy vehicles in the traffic flows. This may affect the safety, serviceability and durability of existing bridges. The road administration is therefore interested in reliable and agreed methods to assess the safety and durability of existing bridges. The special procedure has been prepared to provide technical insight on the way in which existing steel structures could be assessed and the remaining fatigue life could be estimated. This approach follows the principles and application rules in the Eurocodes and provides a scheme with various levels of analysis: a basic level with general methods and further levels, more complex and sophisticated and requiring specific experience and knowledge. This procedure has been used for the fatigue assessment of the 60-year-old riveted truss bridge. The applied procedure as well as the main results of the assessment have been presented in the paper.

APA, Harvard, Vancouver, ISO, and other styles

29

Liao, Ping, Bing Qu, Yaolong Huang, Yi Jia, Yongbao Wang, and Haifeng Zhu. "Fatigue Life Assessment of Revised Cope-Hole Details in Steel Truss Bridges." Metals 10, no. 8 (August 12, 2020): 1092. http://dx.doi.org/10.3390/met10081092.

Full text

Abstract:

In recent years, various welded details with complex local structure, ambiguous fatigue performance have appeared in fully welded steel truss bridges, however, they are not covered in the current design specifications. In order to study the fatigue performance of revised cope-hole details, fatigue performance experiments were designed and carried out on three specimens of revised detail with the same dimensions but subjected to different stress amplitude. Local finite element model of the revised cope-hole detail was established for further stress analysis. The results of finite element analysis were basically consistent with the static test results at majority of measurement points. Based on the existing fatigue test data and fatigue strength of cope-hole details defined in Eurocode and JSSC design code, the fatigue performance of revised cope-hole details was evaluated. The S-N fitting curve with the failure probability of 2.3% was obtained from the fatigue experiment results. The fatigue stress amplitude was 59.5 MPa when fatigue loading cycle was 2 × 106. It can be concluded that the fatigue performance of revised cope-hole detail was better than that of previous welded detail, which indicated that the revised detail had a significant improvement.

APA, Harvard, Vancouver, ISO, and other styles

30

Abdullah, M. F., M. F. Idris, A. Z. A. Kamal, Z. A. Kadir, M. Gunasilan, and M. F. M. Yusoff. "Corrosion Effect on Car Welded Jointed in Terms of Sea Environment Effect." Applied Mechanics and Materials 165 (April 2012): 78–82. http://dx.doi.org/10.4028/www.scientific.net/amm.165.78.

Full text

Abstract:

Almost 50% above parts in the car are weld jointed. Corrosion effects are main threats to all this welded part and commonly cause the mechanical failure. Corrosion effect can be more when the car or any transportation is exposed to sea environment or salt water. The objective of this study are determining the effect of corrosion and predict the degree of durability on welded joint under corrosion effect. In order to perform the corrosion, salt spray test are used to give the corrosion effect welded joint parts. 48 hours in Salt spray test can give corrosion effect equal to 5 years of industrial condition. To obtain the structural condition, the tensile test, Infinite Focus Microscope (IFM) and Metallographic test was performed to get the corrosion rate. From the experiments, it was found that the corrosion effects will increase by the times. The roughness of the surface corrosion on welded joint gives a lower durability due to failure in welded parts.

APA, Harvard, Vancouver, ISO, and other styles

31

Lee, Soon-Bok. "Fatigue failure of welded vertical members of a steel truss bridge." Engineering Failure Analysis 3, no. 2 (June 1996): 103–8. http://dx.doi.org/10.1016/1350-6307(96)00003-9.

Full text

APA, Harvard, Vancouver, ISO, and other styles

32

Cui, Chuang, Qinghua Zhang, Yi Bao, Jiping Kang, and Yizhi Bu. "Fatigue performance and evaluation of welded joints in steel truss bridges." Journal of Constructional Steel Research 148 (September 2018): 450–56. http://dx.doi.org/10.1016/j.jcsr.2018.06.014.

Full text

APA, Harvard, Vancouver, ISO, and other styles

33

Korzhyk, V. M., A. A. Grynyuk, V. Yu Khaskin, Ye V. Illiashenko, I. M. Klochkov, O. V. Ganushchak, Yu Xuefen, and Liuyi Huang. "Improving the efficiency of robotic fabrication of steel truss welded structures." Avtomatičeskaâ svarka (Kiev) 2021, no. 5 (May 28, 2021): 15–20. http://dx.doi.org/10.37434/as2021.05.02.

Full text

APA, Harvard, Vancouver, ISO, and other styles

34

Korzhyk, V. M., A. A. Grynyuk, V. Yu Khaskin, Ye V. Illiashenko, I. M. Klochkov, O. V. Ganushchak, Yu Xuefen, and Liuyi Huang. "Improving the efficiency of robotic fabrication of steel truss welded structures." Paton Welding Journal 2021, no. 5 (May 28, 2021): 12–17. http://dx.doi.org/10.37434/tpwj2021.05.02.

Full text

APA, Harvard, Vancouver, ISO, and other styles

35

Haque, Tarana, and Jeffrey A. Packer. "Elliptical hollow section T and X connections." Canadian Journal of Civil Engineering 39, no. 8 (August 2012): 925–36. http://dx.doi.org/10.1139/l2012-081.

Full text

Abstract:

Elliptical hollow sections (EHS) are the newest steel shape to have emerged in the construction industry. They have been incorporated in a variety of structures around the world, including Canada, without structural design guidelines. To date, EHS are completely absent from Canadian codes and guides. A possible application of EHS is within truss-systems and, as such, a research project has been undertaken to investigate the behaviour of EHS-to-EHS welded connections. Twelve T and X connection tests have been performed to study the effect of connection angle, orientation type, and loading sense. Two methods to predict connection capacities and failure modes are investigated: an equivalent circular hollow section (CHS) approach and an equivalent rectangular hollow section (RHS) approach. The equivalent RHS approach proved to be more successful at capturing the actual failure mode of welded EHS-to-EHS connections and is therefore recommended at this time as a preliminary design method for EHS truss-type connections.

APA, Harvard, Vancouver, ISO, and other styles

36

Liu, Jian Wei, Jun Min Shen, and Shao Wen Liu. "Safety and Durability Pavement in Super Long Tunnel." Applied Mechanics and Materials 256-259 (December 2012): 1411–14. http://dx.doi.org/10.4028/www.scientific.net/amm.256-259.1411.

Full text

Abstract:

In order to solve the problem of design and construction of pavement structure in the long tunnel, through the analysis of pavement using domestic and overseas, combined with the factors of primary carrying capacity, small temperature gradient in the long tunnel, the Continuously Reinforced Concrete Pavement(CRCP) is proposed, which has characteristics of better durability, strong structure integrity and comfortable driving. Mini excavator auxiliary framing construction, layered pouring concrete, lap joint construction of welded steel have solved a series of problems of the relatively small space of construction, the lower concrete vibrators affected by the steel mesh and reinforced scene lashing. So continuously reinforced concrete pavement using welded steel fabric can be used as a major road structure in long tunnel.

APA, Harvard, Vancouver, ISO, and other styles

37

Yerofeyev, V. V., A. G. Ignatyev, and R. G. Sharafiyev. "Evaluation of durability of welded joints of agricultural machinery metal structures based on accelerated testing." Traktory i sel hozmashiny 82, no. 7 (July 15, 2015): 40–42. http://dx.doi.org/10.17816/0321-4443-66067.

Full text

Abstract:

A new method for evaluation of durability of welded joints of agricultural machinery metal structures based on accelerated tests is proposed. This method allows to reduce significantly the time of endurance test of welded joints and takes into account their design and technological parameters.

APA, Harvard, Vancouver, ISO, and other styles

38

Peleckis, Kęstutis. "PROBLEMS OF BITUMINOUS MEMBRANES WELDED SEAMS / PRILYDOMŲJŲ MEDŽIAGŲ SUKLIJAVIMO SIŪLIŲ PROBLEMOS." Mokslas - Lietuvos ateitis 3, no. 2 (June 7, 2011): 45–50. http://dx.doi.org/10.3846/mla.2011.031.

Full text

Abstract:

Durability of roofs has been increased by using polymer modified bituminous materials. But increased number of roofs permeability from polymer-modified roofing membranes argue about serious problems in lap joints durability of roofing membranes. By analysing this problem were overlooked the bituminous roofing membranes history and their characteristics. This research analysed the mechanism of seams formation and impact of welding technology on properties of durability and maintenance such as strength, thickness, appearance of not welded places and seams permeability. There was made overlook of worlds literature and experience. Also there were found the basic roofing membranes lap joints welding problems. The main additional parameters for seams evaluation were defined: the final thickness of seams, seams permeability, appearance of not welded places. The solutions were suggested for the further investigations of these parameters.

APA, Harvard, Vancouver, ISO, and other styles

39

HIRATA, Osamu, Akira NAKAJIMA, Ken OKADA, and Takasi YANAGISAWA. "Study on Durability of Welded Bellows. Fatigue Life of Bellows with Crack in Welded Bead." Journal of the Japan Society for Precision Engineering 60, no. 11 (1994): 1621–25. http://dx.doi.org/10.2493/jjspe.60.1621.

Full text

APA, Harvard, Vancouver, ISO, and other styles

40

Saremi, Pooya, Wei Lu, Jari Puttonen, Dan Pada, and Jyrki Kesti. "Load-carrying capacity of welded K-type joints inside floor truss systems." Rakenteiden Mekaniikka 52, no. 1 (July 11, 2019): 38–52. http://dx.doi.org/10.23998/rm.74444.

Full text

Abstract:

The load-carrying capacity of a K-type joint inside a floor truss is studied both experimentally and numerically. The joint tested is a scaled-down, isolated joint. The tubular braces, plate chord, and division plate are made of SSAB Domex steel. Comparison of load displacement curves received by finite element analyses with curves obtained from tests confirms that numerical models describe joint behaviour reasonable. The paper demonstrates that joints with high load-bearing capacity can be investigated experimentally by scaling the dimensions of the joint down when testing devices can affect the required capacity of the joint. The results presented can also be used for optimizing failure mechanism of similar joints in practice.

APA, Harvard, Vancouver, ISO, and other styles

41

Hołowaty, Janusz, and Bernard Wichtowski. "The World’s First Road Truss Welded Bridge in the Light of NDTs." Biuletyn Instytutu Spawalnictwa 2018, no. 6 (2018): 27–33. http://dx.doi.org/10.17729/ebis.2018.6/3.

Full text

APA, Harvard, Vancouver, ISO, and other styles

42

Arlekar, Jaswant N., and C. V. R. Murty. "Improved Truss Model for Design of Welded Steel Moment-Resisting Frame Connections." Journal of Structural Engineering 130, no. 3 (March 2004): 498–510. http://dx.doi.org/10.1061/(asce)0733-9445(2004)130:3(498).

Full text

APA, Harvard, Vancouver, ISO, and other styles

43

Shved, Yaroslav, Yaroslav Kovalchuk, Liudmyla Bodrova, Halyna Kramar, and Natalya Shynhera. "Material consumption optimization of a welded rafter truss made of angle profiles." Procedia Structural Integrity 36 (2022): 10–16. http://dx.doi.org/10.1016/j.prostr.2021.12.076.

Full text

APA, Harvard, Vancouver, ISO, and other styles

44

Zeng, Qiang, Dai Qin Tao, Zheng Zhou, and Xiao Qian Li. "Welding Residual Stress Evaluation of Complex Welded Joints by Brinell Hardness Method." Applied Mechanics and Materials 496-500 (January 2014): 2444–51. http://dx.doi.org/10.4028/www.scientific.net/amm.496-500.2444.

Full text

Abstract:

Basing on a giant truss, this passage did a macro assessment of welding resjdual stress by the changes of material hardness which was measured by brinell hardness method after welding. This experiment measured about 1728 measurement points on 72 nodes. Statistical analysis of the hardness data shows that hardness of base metal decreases in the area of HAZ ,and plastic of welded joints increases.

APA, Harvard, Vancouver, ISO, and other styles

45

Pichugin, S. F., V. P. Chichulin, and K. V. Chichulina. "SPATIAL STRUCTURES OF CLOSED PROFILES." ACADEMIC JOURNAL Series: Industrial Machine Building, Civil Engineering 1, no. 48 (March 27, 2017): 138–43. http://dx.doi.org/10.26906/znp.2017.48.787.

Full text

Abstract:

The article presents a new design of steel space trusses, arches, frames of complex application, the main advantages of which are lightness, durability of plane, cost efficiency, reliability, reduction of construction period and investment cycle, energy savings at manufacture, transportation and construction. Based on the previously performed experimental and theoretic studies, the expediency of using box-shaped section parallel chord trusses has been proved. Therefore, new constructive decisions for light efficient trusses, arches, frames that can be used at erection of civil and industrial objects are presented below. The suggested efficient structure of a steel truss with spatial upper chord, using tubes or rectangular hollow box-shaped sections, steel trifurcate spatial truss construction, spatial arch truss, spatial arch. Considered the use of closed cross-sections for spatial arch elements. It has been revealed that using the two-hinges spatial frame the construction cost of a building can be reduced due to reducing of the basement’s dimensions.

APA, Harvard, Vancouver, ISO, and other styles

46

Hieu, Nguyen Tran, Nguyen Quoc Cuong, and Vu Anh Tuan. "Optimization of steel roof trusses using machine learning-assisted differential evolution." Journal of Science and Technology in Civil Engineering (STCE) - HUCE 15, no. 4 (October 31, 2021): 99–110. http://dx.doi.org/10.31814/stce.huce(nuce)2021-15(4)-09.

Full text

Abstract:

A steel truss is a preferred solution in large-span roof structures due to its good attributes such as lightweight, durability. However, designing steel trusses is a challenging task for engineers due to a large number of design variables. Recently, optimization-based design approaches have demonstrated the great potential to effectively support structural engineers in finding the optimal designs of truss structures. This paper aims to use the AdaBoost-DE algorithm for optimizing steel roof trusses. The AdaBoost-DE employed in this study is a hybrid algorithm in which the AdaBoost classification technique is used to enhance the performance of the Differential Evolution algorithm by skipping unnecessary fitness evaluations during the optimization process. An example of a duo-pitch steel roof truss with a span of 24 meters is carried out. The result shows that the AdaBoost-DE achieves the same optimal design as the original DE algorithm, but reduces the computational cost by approximately 36%.

APA, Harvard, Vancouver, ISO, and other styles

47

Hoe, Tan Teck, and Lewis C. Schmidt. "Ultimate Load Behaviour of a Barrel Vault Space Truss." International Journal of Space Structures 2, no. 1 (March 1987): 1–10. http://dx.doi.org/10.1177/026635118700200101.

Full text

Abstract:

The ultimate load capacity of a single-layer barrel vault space truss is investigated both experimentally and theoretically. The vault has a novel bracing system in that the diagonal bracing members are out of the plane of the chords, forming a pyramid system with each base in the plane of the chords. The test model is constructed from steel tubes with all-welded joints. Under an unsymmetrical patch load the vault is seen to perform well, as it is able to develop the axial load capacity of the struts, without the need for them to act in flexure. A local mechanism operates in the region of the loads, but no overall collapse occurs.

APA, Harvard, Vancouver, ISO, and other styles

48

Yoon, Ho Chel, Montasser Dewidar, and Jae Kyoo Lim. "A Study on Mechanical Properties and Durability Evaluation of Structure Adhesived and Spot Welded Joints." Key Engineering Materials 353-358 (September 2007): 1979–83. http://dx.doi.org/10.4028/www.scientific.net/kem.353-358.1979.

Full text

Abstract:

Structure adhesive bonding method is widely used in the industry because it is possible to joint complex shape and dissimilar materials. Especially in the car industry, requests of lightweight car have adhesive bonding method be applied in the many parts. Also it is possible for stress to distribute uniformly through the adhesive layer, and stress concentration is released. Since strength, stiffness durability is much better, this method is determined as the technique replaced weld defect. But, it has much shorter history then other joint method such as spot weld and mechanical joint method. Evaluation of strength and durability is not established. As the fundamental research of design of adhesive bonding joints, considers over-lap length, adhesive thickness, surface treatment and environment which affect strength and durability of single-lap joints. In this research, a real part of bus folding door was used and tested to compare durability of spot welding and adhesive bonding.

APA, Harvard, Vancouver, ISO, and other styles

49

Cheng, Bin, Sheng Xiang, Wei Zuo, and Nianguan Teng. "Behaviors of partially concrete-filled welded integral T-joints in steel truss bridges." Engineering Structures 166 (July 2018): 16–30. http://dx.doi.org/10.1016/j.engstruct.2018.03.061.

Full text

APA, Harvard, Vancouver, ISO, and other styles

50

Gertsyk, Svetlana, and Natalya Volgina. "Causes of destruction of continuous welded rail tracks." MATEC Web of Conferences 329 (2020): 03046. http://dx.doi.org/10.1051/matecconf/202032903046.

Full text

Abstract:

The main causes of destruction of continuous welded rail tracks, the main types of their destruction and the causes of their occurrence are considered. The technologies for the manufacture of rails are analyzed, including heat treatment along the entire length of the rail, treatment of the ends of the rail, surface hardening and anti-flake treatment. To increase the durability of rail tracks, a number of measures have been proposed.

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!