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Journal articles on the topic 'Box section'

Author: Grafiati

Published: 28 May 2022

Last updated: 30 July 2025

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1

Lee, M. M. K., T. Pine, and T. B. Jones. "Automotive box section design under torsion: Part 1: Finite element modelling strategy." Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering 214, no. 4 (2000): 347–59. http://dx.doi.org/10.1243/0954407001527673.

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Behaviour under torsion is an important performance-related property of automotive box sections. A previous experimental study has identified joining technique, section thickness and section area as the major influencing factors on the torsional behaviour of box hat sections. Using these test results as the basis, a finite element modelling strategy that can simulate the behaviour of adhesively bonded and spot-welded automotive box sections subjected to torsion is presented. The numerical study investigated the effects of material representation, mesh density and layout, and joining technique

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2

Deepak, MS, and VM Shanthi. "Section bending resistance of new Hybrid Double-I-Box Beams." Advances in Structural Engineering 21, no. 11 (2018): 1676–95. http://dx.doi.org/10.1177/1369433217753938.

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This article contains original works of testing and numerical validation on section bending resistance of new innovative built-up thin-walled metal Hybrid Double-I-Box Beam sections when subjected to local buckling. The cross section of Hybrid Double-I-Box Beam section is distinctive, which has advantages of both an ‘I’ section and a closed-box section. A total of 24 sections in three series that includes 8 homogeneous sections and 16 hybrid sections were tested under four-point bending. The varying parameters considered in the test specimens were as follows: first, hybrid parameter ratio, tha

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3

Li, Yun Yu, Yan Lei Wang, and Jin Ping Ou. "Performance Analysis of GFRP/Steel Composite Box Beams." Applied Mechanics and Materials 166-169 (May 2012): 716–19. http://dx.doi.org/10.4028/www.scientific.net/amm.166-169.716.

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To overcome the inadequacy such as the low stiffness, the weak shear capacity, brittle failure and the big initial cost in all FRP box beam, and to make use of the benefits of steel such as the high stiffness, the strong shear capacity, good ductility and the low cost, a new type of GFRP/steel composite box beam was proposed. A given GFRP box beam was used to investigate the effects of adding steel volume ratio (the ratio of steel volume to the total volume in the adding section) on the performance of the GFRP box beam by theoretical calculation, and the adding sections of steel plates for GFR

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4

Yuslinda, Yuslinda, and Cut Meuthia Rani. "COMPARASION PLASTIC BEHAVIOR OF BOX GRIDER BRIDGE WITH MULTIPLE BOX AND CELLULAR BOX CROSS SECTIONS." Jurnal Teknik Sipil 24, no. 1 (2024): 873. http://dx.doi.org/10.26418/jts.v24i1.76313.

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This study compares plastic deformation behavior in box girder bridges with multiple boxes and cellular box cross-sections. The cross-section's shape significantly influences the girder's post-yield behavior despite being designed to have the exact yield moment. Steel's stress-strain relationship undergoes linear behavior until the yield stress is reached, followed by strain hardening. This study aims to assess the impact of strain hardening on the plastic behavior of girder box bridges.Two types of box girder sections, multiple box and cellular box, are designed with equivalent yield moments.

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5

Li, Jinhua, Zhan Quan, Yao Zhang, Liyuan Cao, and Chunxiang Li. "Computational Fluid Dynamics Based Kriging Prediction on Flutter Derivatives of Flat Steel Box Girders." Symmetry 14, no. 7 (2022): 1304. http://dx.doi.org/10.3390/sym14071304.

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An investigation on the flutter derivative prediction of flat steel box girders is carried out based on CFD simulations. Firstly, by taking the flat steel girder section of Qingshan Yangtze River Bridge as the basic section and considering its width and height as the design variables of cross-section shape, the design domain of cross-section shape is defined by controlling the possible variation range of cross-section design variables. A small number of cross-sections are selected for the calculation of aerodynamic forces by CFD simulations. Secondly, according to the aerodynamic lift and mome

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6

Wu, Sheng. "Mechanical Properties of New Type Cold-Formed Steel Box-Shaped Component Welding Section Members." Applied Mechanics and Materials 351-352 (August 2013): 601–9. http://dx.doi.org/10.4028/www.scientific.net/amm.351-352.601.

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Cold-formed steel box-shaped section has the special features in both its mass center and moment center unification as double symmetry section and its outstanding advantage in moment and torsion rigidity. This paper presents a new kind of cold-formed steel box-shaped component welding sections, that is flanges opposite welding box-shaped component section DS. The mechanical properties such as buckling modes, load carrying capacity, rigidity, ductility and correlation curves of new section members which are subjected to axial compression, flexure, combined compression and bending have been anal

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7

Xie, Jia Li, Cun Ming Ma, Chun Xu Lei, and Qing Song Duan. "Research on Wind-Resistant Capability of Two Common Section Forms for Long Span Bridges." Applied Mechanics and Materials 438-439 (October 2013): 930–34. http://dx.doi.org/10.4028/www.scientific.net/amm.438-439.930.

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Long span bridges have two main section forms including streamlined closed steel box girder and twin steel box girder. In order to compare the wind-resistant capacity, the finite element software ANSYS is adopted to establish the calculation structural models of Third Bosphorus Bridge respectively with two kinds of sections in the same width. According to the analysis of the wind-induced internal force and the flutter stability, the respective advantages of the two section forms in terms of wind-resistant capability are discussed. The analysis results could be used as reference in the section

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8

Handhal, Mohammed M., Ali W. Abdulghani, and Montaqa M. Al-Haydary. "Structural Behavior of Steel Reinforced Concrete Joint Under Flexural Loads." Civil Engineering Journal 9, no. 3 (2023): 714–30. http://dx.doi.org/10.28991/cej-2023-09-03-015.

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This research investigates the behavior of RC beam column joints reinforced with steel sections. The study deals with the strengthening of RC joints by different steel sections. The investigation included a theoretical analysis through a performing of simulation of beam-column joints laced with steel sections by using FEA. Implementation of the parametric study included reinforcing the concrete beam with steel sections in many configurations. Shapes and length were the most variables in this study, and many shapes were used, such as I-section, box section, and plates, beside the concrete compr

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9

Aziz, Ali, and Oday Hashim. "Torsional strength evaluation of reinforced SCC box beams strengthened internally by opened and closed transverse concrete diaphragms." MATEC Web of Conferences 162 (2018): 04009. http://dx.doi.org/10.1051/matecconf/201816204009.

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There are a few researches about box (hollow core) RC beams under the effect of torque moment; therefore, a torsional failure mechanism is not understood well. In the present paper, the concept (technique) of adding internal concrete diaphragms, in transverse direction, is adopted. Six self-compacting concrete beam specimens having a dimension of (2200x220x350mm) for length, width and height, respectively were poured and tested. Three variables are adopted in the present study, section type, number and type of the internal diaphragms. Experimental results show that the ultimate torque moment i

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10

Brzezińska, K., and A. Szychowski. "Stability and Resistance of Steel Continuous Beams with Thin-Walled Box Sections." Archives of Civil Engineering 64, no. 4 (2018): 123–43. http://dx.doi.org/10.2478/ace-2018-0048.

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AbstractThe issues of local stability and ultimate resistance of a continuous beam with thin-walled box section (Class 4) were reduced to the analysis of the local buckling of bilaterally elastically restrained internal plate of the compression flange at longitudinal stress variation. Critical stress of the local buckling was determined using the so-called Critical Plate Method (CPM). In the method, the effect of the elastic restraint of the component walls of the bar section and the effect of longitudinal stress variation that results from varying distribution of bending moments were taken in

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11

Wang, Jie, Aimin Xu, Jin Di, Fengjiang Qin, and Pengfei Men. "Experimental and Numerical Study of Membrane Residual Stress in Q690 High-Strength Steel Welded Box Section Compressed Member." Materials 17, no. 10 (2024): 2296. http://dx.doi.org/10.3390/ma17102296.

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High-strength steel (HSS) members with welded sections exhibit a notably lower residual compressive stress ratio compared with common mild steel (CMS) members. Despite this difference, current codes often generalize the findings from CMS members to HSS members, and the previous unified residual stress models are generally conservative. This study focuses on the membrane residual stress distribution in Q690 steel welded box sections. By leveraging experimental results, the influence of section sizes and welding parameters on membrane residual stress was delved into. A larger plate size correlat

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12

KIM, S. B., H. HUH, G. H. LEE, J. S. YOO, and M. Y. LEE. "DESIGN OF THE CROSS SECTION SHAPE OF AN ALUMINUM CRASH BOX FOR CRASHWORTHINESS ENHANCEMENT OF A CAR." International Journal of Modern Physics B 22, no. 31n32 (2008): 5578–83. http://dx.doi.org/10.1142/s021797920805084x.

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This paper deals with the crashworthiness of an aluminum crash box for an auto-body with the various shapes of cross section such as a rectangle, a hexagon and an octagon. First, crash boxes with various cross sections were tested with numerical simulation to obtain the energy absorption capacity and the mean load. In case of the simple axial crush, the octagon shape shows higher mean load and energy absorption than the other two shapes. Secondly, the crash boxes were assembled to a simplified auto-body model for the overall crashworthiness. The model consists of a bumper, crash boxes, front s

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13

Jiang, Qing, Ye Zhang, Shiyou Yan, and Liangyuan Xu. "Optimal Design of an Angular Box for a Mixed Flow Grain Dryer." Applied Engineering in Agriculture 37, no. 4 (2021): 555–62. http://dx.doi.org/10.13031/aea.14643.

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Highlights The drying effect in the drying layer is affected by the status of the flow field. The angular box of the drying oven is optimized to improve the drying effect. The structure of the variable-section angular box significantly reduced unevenness and improved the drying effect. Abstract . Dryers are subject to problems as they are unable to fully and uniformly dry grain. Considering the mixed-flow drying process and improving the drying uniformity, this study conducted a numerical simulation of the hot air temperature field, velocity field, and pressure field with ordinary equal cross-

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14

Siddiqui, A. H., and S. F. Ng. "Effect of diaphragms on stress reduction in box girder bridge sections." Canadian Journal of Civil Engineering 15, no. 1 (1988): 127–35. http://dx.doi.org/10.1139/l88-014.

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The purpose of this study is to examine the effect of rigid diaphragms in reducing warping and distortion stresses developed in box girders due to deformation of the cross section. Tests were conducted for two Plexiglas box girder models to determine effect of diaphragms on the behaviour of box girder sections. The results of the tests were compared with values obtained from the so-called “beam on elastic foundation (BEF) analogy,” an analytical procedure that permits the calculation of warping and distortion stresses in box sections due to deformation of the cross section.Each box girder mode

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15

., Ankur. "Cost Aanalysis and Comparison of Rectangular and Trapezoidal Box Girder Section." International Journal for Research in Applied Science and Engineering Technology 9, no. VI (2021): 1325–33. http://dx.doi.org/10.22214/ijraset.2021.35249.

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The present study aims at design, analysis and parametric comparison of two different cross section of box girder deck system. Objectives of this study are to compare the stresses at important location like top slab and bottom slab using analysis tool MIDAS-2016. And design and estimates different sizes of rectangular and trapezoidal box girder section using hand calculation. Keywords: Box Girder, Rectangular box girder, Trapezoidal box girder and MIDAS-2016

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16

Lin, Li Xia, Yuan Hai Zhang, Ya Ping Wu, and Nan Hong Ding. "Approximate Deflection Calculation of Variable Box Section Girder Considering the Effect of Shear Lag and Shear Deformation." Advanced Materials Research 255-260 (May 2011): 967–71. http://dx.doi.org/10.4028/www.scientific.net/amr.255-260.967.

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Based on the equivalent stiffness and equivalent stiffness ratio method, an approximate method suitable for hand calculation is proposed to calculate the deflection of variable box section girder bearing load, in which, the double effects of shear lag and shear deformation can be taken into account. It shows that the deflection calculated by elementary beam theory without considering shear lag effect and the shear deformation is smaller, comparing to results calculated by the approximate method proposed in the paper. For such variable box sections girder, transverse shear deformation effect is

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17

Du, Xian He, Xin Pu Shen, and Sheng Ji Jin. "The Hysteretic Behavior of Fiber Beam Element Model of Reinforced Concrete for Dynamic Explicit Analysis." Advanced Materials Research 383-390 (November 2011): 6663–68. http://dx.doi.org/10.4028/www.scientific.net/amr.383-390.6663.

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Aim of this paper is to present a numerical method for modeling of the so-called “equivalent box section fiber beam concrete element”. By comparing hysteresis curves of specimen of the concrete structure plotted with rebar beam with those plotted with the equivalent box section beam under a set of loading cases, the following conclusions are obtained: 1) The modeling technology of equivalent box section beam can overcome the difficulty which the rebar in beam can only be used in static calculation, and the fiber beam element can be applied to dynamic explicit analysis; 2) By comparing hysteres

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18

Choiron, Moch Agus, Delia Hani Wakhidah, and Nurchajat Nurchajat. "Development of Bi-hexagonal hybrid crash box subjected to axial loading for enhancement of crashworthiness." Eastern-European Journal of Enterprise Technologies 1, no. 1 (121) (2023): 51–57. http://dx.doi.org/10.15587/1729-4061.2023.273847.

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Crash box design had been developed to increase crashwortiness performance. The crash box cross section is one important parameter to increase the energy absorption as crashwortiness performance. In the previous study, hexagonal cross section provide the higher energy absorption than other cross section. One of strategy to increase cross section is using two cross section put together in one component of crash box design. Bi-tubular crash box shows higher energy absorption with easy manufacture opportunity. In other study, hybrid crash box is investigated to reduce crash box mass. In this stud

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19

Moch, Agus Choiron, Hani Wakhidah Delia, and Nurchajat. "Development of Bi-hexagonal hybrid crash box subjected to axial loading for enhancement of crashworthiness." Eastern-European Journal of Enterprise Technologies 1, no. 1 (121) (2023): 51–57. https://doi.org/10.15587/1729-4061.2023.273847.

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Crash box design had been developed to increase crashwortiness performance. The crash box cross section is one important parameter to increase the energy absorption as crashwortiness performance. In the previous study, hexagonal cross section provide the higher energy absorption than other cross section. One of strategy to increase cross section is using two cross section put together in one component of crash box design. Bi-tubular crash box shows higher energy absorption with easy manufacture opportunity. In other study, hybrid crash box is investigated to reduce crash box mass. In this stud

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20

Shahmohammadi, Amir, James B. P. Lim, and George Charles Clifton. "Portal Frames with a Novel Cold-Formed Tapered Box-Section." Key Engineering Materials 763 (February 2018): 301–9. http://dx.doi.org/10.4028/www.scientific.net/kem.763.301.

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This paper introduces a novel steel portal frame system, in which cold-formed nested tapered box members are used in the design. The bird and dust proofing features of the system make it useful for applications where clean work areas are required, such as food, storage, and manufacturing industries. The new section used in the portal frames comprises two cold-formed channels welded to each other, forming a box-shaped steel member, either tapered or prismatic along its length. Such sections possess high torsional stiffness compared with the conventional I-sections; therefore, lateral bracing em

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21

Zhu, Ming Qiao, Hai Qiang Huo, and Shao Hui Wu. "Numerical Analysis of Shear Lag Effect for Concrete Huge Section Box Grider." Applied Mechanics and Materials 130-134 (October 2011): 1630–33. http://dx.doi.org/10.4028/www.scientific.net/amm.130-134.1630.

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Through a lot of investigations and studies ,and refering to the current related technical specifications and relevant reference, and combining with the characteristics of the ordinary concrete box section component , single box double room concrete huge section box girder which can realize city bridges double traffic is devised creatively,considering of the need of structure and function. By choosing proper element type and material modle, the designed box grider is modeled by the nonlinear analysis software ANSYS. The shear lag effect of the concrete huge section box girder is studied by app

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22

U.N., Wilsona, Sania J.E., Sadiqa J.A., Abdulwahabb M.T., Abubakarc P., and Rahmonc R.O. "Investigating the Effect of Flexural Strength of I and Box African Birch Built-up Beam on Nail Spacing." NIPES Journal of Science and Technology Research 4, no. 4 (2022): 186–97. https://doi.org/10.5281/zenodo.7486333.

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<em>Structural timber is gaining popularity in the construction industry; however, there is an urgent need to examine its safety in terms of strength and sectional properties. This paper seeks to examine the effect of flexural/bending strength of I and box African birch built-up beam sections on nail spacing. The air-dried African birch (Anogeissus leiocarpus) timber was obtained from a local timber market in Kaduna, Nigeria, the Pantaka market. The timber was sawed into sizes before being assembled into I and box built-up sections. Using a 2 mm diameter, 2-inch steel nail, forty (40) built-up

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23

Lee, M. M. K., T. Pine, and T. B. Jones. "An experimental and finite element study of the torsional behaviour of T-joints in automotive structures." Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering 215, no. 2 (2001): 231–40. http://dx.doi.org/10.1243/0954407011525601.

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Single box sections and T-joints (two box sections joined together at right angles) are commonly used to represent automotive components, such as pillars and sills, in laboratory testing. In the work presented herein, the torsional properties of T-joints were determined both experimentally and numerically. A factorial-design test programme comparing adhesive-bonded and spot-welded T-joints was carried out. Numerical models, generated using a general-purpose finite element program and validated against the test results, were used to investigate further the behaviour of the connection between th

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24

Raad, M. Fenjan, and S. Khalaf Basima. "Study of Melting and Solidification of the Phase Change Materials." Journal of Advancement in Machines 4, no. 2 (2019): 47–54. https://doi.org/10.5281/zenodo.3366459.

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This study experimentally investigate the melting and solidification characteristics of selected phase change materials (PCMs). PCMs were polyethylene glycols (PEGs) and Palmitic acid. By using an aluminum box, the PCMs was heating then cooling for melting and solidification respectively. The box divided into three sections. One of them was the heating source (hot water at 100°C), the middle section filled with tested PCM and the remaining section was a cooling source (cold water at 25°C). Twelve thermocouples used for each processes (charging and discharging). The study conclude that

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25

He, Han Xin, and Jian Long Zhou. "The Experimental Study and CFD Analysis of Vortex-Excited Vibration of the Central-Open Box Section Cable Bridge." Advanced Materials Research 368-373 (October 2011): 1208–12. http://dx.doi.org/10.4028/www.scientific.net/amr.368-373.1208.

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As a new type of section, central-open box sections are more and more popular. Some existed bridges of central-open box section can not to be used because of vortex-excited resonance. Based on this situation, the paper taking the Hongkong-Zhuhai-Macao River-sea ship canal Bridge for example, takes measures of taking the central bottom plate opening hole, changing the angle of web, and setting baffle, according the experimental study and CFD analysis, it is obtained that different aerodynamic sections are various in the character of vortex-excited, although taking the central bottom plate openi

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26

Elugachev, P. A., E. A. Esharov, B. M. Shumilov, and A. Zh Kuduev. "3D modeling of box-section road surface." Vestnik Tomskogo gosudarstvennogo arkhitekturno-stroitel'nogo universiteta. JOURNAL of Construction and Architecture 23, no. 1 (2021): 175–83. http://dx.doi.org/10.31675/1607-1859-2021-23-1-175-183.

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In road design, it is most important to obtain an optimum road surface (left and right traffic ways, left and right road sides, left and right slopes, etc.) using a number of criteria (sometimes hundreds of criteria), which include a slope, absolute elevation, elevation relative to the groundwater level, distance from the top of pipe-culvert, and others. In most computer-aided design systems, a digital model of the project is built by using a Delone triangulation.This paper deals with a new mathematical apparatus for spatial setting out of box-section roads in the form of a nonclosed polyhedro

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Bochenek, B. "On box-section arches optimized against buckling." Structural Optimization 2, no. 4 (1990): 239–47. http://dx.doi.org/10.1007/bf01748229.

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Wang, Zhaohua, Chenglong Yang, Xiaopeng Xu, Dezhuang Song, and Fenghe Wu. "Layout Design of Stiffened Plates for Large-Scale Box Structure under Moving Loads Based on Topology Optimization." Mathematical Problems in Engineering 2020 (November 10, 2020): 1–11. http://dx.doi.org/10.1155/2020/8843657.

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As the main load-bearing structure of heavy machine tools, cranes, and other high-end equipment, the large-scale box structures usually bear moving loads, and the results of direct topology optimization usually have some problems: the load transfer skeleton is difficult to identify and all working conditions are difficult to consider comprehensively. In this paper, a layout design method of stiffened plates for the large-scale box structures under moving loads based on multiworking-condition topology optimization is proposed. Based on the equivalent principle of force, the box structures are s

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29

Yao, Xinmei, Xuhong Zhou, Yu Shi, Yu Guan, and Yuxuan Zou. "Simplified calculation method for flexural moment capacity of cold-formed steel built-up section beams." Advances in Structural Engineering 23, no. 14 (2020): 3153–67. http://dx.doi.org/10.1177/1369433220931208.

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Cold-formed steel built-up section beams are commonly employed in cold-formed steel framing owing to their excellent mechanical performance. In order to develop a simplified approach for obtaining the flexural moment capacity of built-up section beams, both experimental study and numerical analysis on the flexural behavior of cold-formed steel built-up I-section and box section beams under flexural load were carried out in this study. The I-section beams are assembled from two back-to-back cold-formed steel lipped channels, and the box section beams consist of a cold-formed steel plain channel

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30

Vukoja, Hrvoje, Anđelko Vlašić, and Mladen Srbić. "Shear Lag Effect on Box Steel Beams with Wide Curved Flanges." Applied Sciences 14, no. 18 (2024): 8481. http://dx.doi.org/10.3390/app14188481.

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For wide flange box sections, conventional Euler–Bernoulli beam theory with maintaining the cross-section planarity may lead to underestimation of axial stresses. Axial stresses in cross-section flanges may have a non-uniform distribution due to shear pliability, decreasing in value from the flange–web junction to the middle area of the flange. This phenomenon leads to the introduction of an effective flange width with a uniform distribution of original maximum stress. Furthermore, the introduction of flange curvature makes it even more complex due to the varying lever arm of each flange part

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Zhao, Jia Jian, and De Min Wei. "Transverse Shearing Strain Energy Calculation of Single Cell Box Girder." Advanced Materials Research 163-167 (December 2010): 1044–52. http://dx.doi.org/10.4028/www.scientific.net/amr.163-167.1044.

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Both the increasingly-thin walls of box girder cross-sections and the super-loads from trains or track vehicles make the behavior research on diaphragms and side walls become particularly important. According to the deformation of single cell box girder cross-section, the displacement parameters were designed, and the displacement modes of cross-section distortion angles were deduced. The schematic plans of diaphragms and side walls were simulated by rigid frames or plates. Both the shearing strain energy and the shearing stiffness of diaphragms and side walls were deduced on the basis of the

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32

Waldron, Peter. "The significance of warping torsion in the design of straight concrete box-girder bridges." Canadian Journal of Civil Engineering 15, no. 5 (1988): 879–89. http://dx.doi.org/10.1139/l88-113.

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Out-of-plane warping, resulting from torsional loading, is an important feature of box-girder bridges of thin-walled cross section. This may be of some consequence in girders where warping is restrained, since it may alter the level of stress both around the cross section and along the entire length of the beam. It is well known that some girders with very thin walls are not susceptible to warping, whereas others, with thicker walls, warp significantly when twisted. It is shown that the degree of warping is not governed by wall thickness alone; cross-sectional geometry, girder configuration, a

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33

Shu, Xiao Juan, Xin Gu Zhong, Zhen Xing Li, Ming Yan Shen, and Hong Bing Chen. "Experimental Study on Shear Lag of Box Girder with Variable Depth under Varying Lateral Position Concentric Loads." Applied Mechanics and Materials 501-504 (January 2014): 993–99. http://dx.doi.org/10.4028/www.scientific.net/amm.501-504.993.

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This paper introduces the test and analysis of shear lag effect of a vast scale model of a continuous box girder with variable depth under symmetric lateral varying concentric loads. The strain distribution of the top plates and bottom ones of three cross-sections is tested, while the concentric loads respectively forced on the middle section and the quartile ones. Those sections are: the root-section of the cantilever, mid-section and one quartile section. Test shear lag coefficients of feature points were got through dividing the test strains to those calculated by elementary beam theory. Th

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Li, Chong, and Yanyan Huang. "Detection method of space-time conflict for multi route planning." MATEC Web of Conferences 336 (2021): 07008. http://dx.doi.org/10.1051/matecconf/202133607008.

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In order to solve the problem of space-time conflict in multi route planning, this paper proposes a space-time conflict detection method based on bounding box. The main research contents include: dividing each route into a limited number of road sections, each road section uses a bounding box to represent the space occupied by the target in the period of time, and then using OBB collision detection method to judge whether there is different bounding box overlap in the same space at the same period of time, so as to judge whether there is a space-time conflict. In addition, calculating the dist

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Nastri, Elide, Vincenzo Piluso, and Alessandro Pisapia. "Numerical Application of Effective Thickness Approach to Box Aluminium Sections." Journal of Composites Science 5, no. 11 (2021): 291. http://dx.doi.org/10.3390/jcs5110291.

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The ultimate behaviour of aluminium members subjected to uniform compression or bending is strongly influenced by local buckling effects which occur in the portions of the section during compression. In the current codes, the effective thickness method (ETM) is applied to evaluate the ultimate resistance of slender cross-sections affected by elastic local buckling. In this paper, a recent extension of ETM is presented to consider the local buckling effects in the elastic-plastic range and the interaction between the plate elements constituting the cross-section. The theoretical results obtaine

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Zhao, Kao Zhong, and Guang Yi Wang. "The Experimental Study on Mechanical Performance of Multi-Span Column-Supported Assembly Box Concrete Hollow Floor." Applied Mechanics and Materials 351-352 (August 2013): 560–65. http://dx.doi.org/10.4028/www.scientific.net/amm.351-352.560.

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Assembly box concrete hollow floor sructure is a new-style whole structure that are constituted by the a cross section of a concrete box composed of small prefabricated components (concrete superposition box) and a cast-in-place concrete rib beam.The internal force distribution law was analyzed in this paper, based on the static load experiment with a multi span column-supported assembly box concrete hollow floor.The findings prove that the prefabricated boxs and cast-in-situ concrete ribbed beams are able to form a whole to jointly bear external forces, that the internal force distribution la

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Che, Weixian, Junbo Liang, Jun Deng, and Jiang Yi. "Selection of 110 kV Prefabricated Steel Substations Considering Seismic Vulnerability in China." Buildings 14, no. 7 (2024): 2197. http://dx.doi.org/10.3390/buildings14072197.

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Prefabricated modular substations are expected to become the mainstream construction type for substations in China. However, there is a lack of scientific basis for structural selection and seismic performance evaluation. Taking a 110 kV substation as an example, this study compares the construction cost of cast-in situ reinforced concrete (RC) substations and prefabricated steel (PS) ones. Two types of PS structures are considered: one with H-section steel columns and the other with box-section steel columns. A seismic vulnerability analysis is performed to compare the probability distributio

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Cho, Hojin, and Jaehak Park. "Study of Rail Squat Characteristics through Analysis of Train Axle Box Acceleration Frequency." Applied Sciences 11, no. 15 (2021): 7022. http://dx.doi.org/10.3390/app11157022.

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In this study, a method for detecting the railway surface defects called “squats” using the ABA (Axle Box Acceleration) measurement of trains was proposed. ABA prototype design, implementation, and field tests were conducted to derive and verify the results. The field test was performed using a proven precision measurement system, and the measured data were signal-processed using a Matlab program. The algorithm used to determine the position of the squats was developed based on wavelet spectrum analysis. This study was verified for a section of a domestic general line and, following field veri

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Lin, Li Xia, Nan Hong Ding, and Ya Ping Wu. "Transformed Section Method to Calculate Stress of R.C. Box Beams Considering Shear Lag." Applied Mechanics and Materials 256-259 (December 2012): 732–36. http://dx.doi.org/10.4028/www.scientific.net/amm.256-259.732.

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The tensile and compression performance and shear performance should not be changed when using variation principle to analyze shear lag of box beams. So based on transformed-section method, the section composed with steel and concrete can be transformed to one section made of supposing material. The shear lag of supposing section is analyzed to calculate the distribution of normal stress, then according to the constitutive relation of steel and concrete, the stress of actual section can be obtained. At last, the formula of normal stress in flange slab for reinforced concrete box girder is give

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Li, L., F. H. Zheng, H. D. Zhang, and Y. Q. Fu. "Effect of residual stress in longitudinal and transverse weld on global stability of box section steel column." Journal of Physics: Conference Series 2045, no. 1 (2021): 012029. http://dx.doi.org/10.1088/1742-6596/2045/1/012029.

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Abstract In order to study the influence of welding residual stress on the global stability of box section steel column, the simulation of the side effects from the welding process of Q345 box section steel column by ABAQUS thermal-structure coupling analysis was conducted. A temperature-displacement explicit analysis step was established, and the residual stress caused by the temperature difference of the welding specimen was simulated by applying the body heat flux directly to the solid element within the same thickness range of the weld seam and defining the load amplitude; The calculated w

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Li, Wei Zhao, Zong Lin Wang, and Fadhil Naser Ali. "Theoretical Analysis of Temperature and Shrinkage Stresses of Box-Girder Section." Advanced Materials Research 243-249 (May 2011): 1885–92. http://dx.doi.org/10.4028/www.scientific.net/amr.243-249.1885.

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The objective of this study is to analyze the temperature and shrinkage stresses of the mid-span cross-section of a 20 meters box girder to find the reasons which cause the longitudinal cracks in the web and bottom of box girder. According to the results of damage inspeation, there are many longitudinal cracks in the web and bottom slab of box girders, especially the web of the edger beam, the crack is very clear. Ansys ver.10 software is used to analyze two dimensional finite element model of a typical cross section of a real bridge to calculate the temperature stresses caused by temperature

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Chachurde, R. B., R. R. Joshi, and S. Roy. "Behavioural Study of a Bridge using Isotruss Member, Box Section and Circular Tube Sections." Proceedings of the 12th Structural Engineering Convention, SEC 2022: Themes 1-2 1, no. 1 (2022): 337–40. http://dx.doi.org/10.38208/acp.v1.518.

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It is often necessary to cross a river or any other obstacle where no bridges exist or they have been collapsed due to natural disasters. In general already prefabricated bridge elements will be used. They are mostly made out of light as well transportable and detachable parts from high quality materials which could be fast to build Bridges with different span, width and load capacity. In the present paper behavior and performance of a Bridge, using three different types of truss members, namely Isotruss member, Box section and Circular tube, have been studied. Bridge is modelled and analysed

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Yu, Zinan, Jianhong Wang, Wenlong Cao, and Jianwei Zhou. "Research on Residual Bearing Capacity Calculation Method and Changing Law of Prestressed Concrete Box Girder with Damage." Mathematical Problems in Engineering 2023 (April 25, 2023): 1–17. http://dx.doi.org/10.1155/2023/2966844.

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Due to the simple design and convenient construction of prestressed concrete box girder bridges, it is widely used in bridge construction in China. At present, the load test of bridge is the most direct and effective method to evaluate the actual bearing capacity of the structure. However, this method has barriers including high cost, long time, and unfriendly to the damaged structure. Besides, the calculation method of the ultimate bearing capacity of damaged structures is relatively subjective and uncertain. Therefore, this study combines the full-size model test results of a newly built 30

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Li, Haoxu, Zhiguo Zhang, and Nianchun Deng. "Temperature Field and Gradient Effect of a Steel-Concrete Composite Box Girder Bridge." Advances in Materials Science and Engineering 2021 (September 9, 2021): 1–16. http://dx.doi.org/10.1155/2021/9901801.

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To study the effect of the temperature field and gradient of a steel-concrete composite box girder bridge, a 5 × 35 continuous composite box girder bridge is used as the research object. The temperature measuring point is set by selecting a typical cross section, and the temperature change data are measured. The temperature field of the different positions in the composite box girder bridge is studied, the global and local temperature differences are compared, and the law of temperature distribution and the main factors affecting the temperature field are formulated. The most unfavourable expr

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Lv, Bo, Qi Tie Xie, Jie Xu, Tian Yuan Jiang, and Yu Shun Li. "A New-Type Bamboo-Steel Composite Structural Member, Box Section Bamboo-Steel Composite Beams." Applied Mechanics and Materials 94-96 (September 2011): 490–94. http://dx.doi.org/10.4028/www.scientific.net/amm.94-96.490.

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Bamboo-steel composite structure contains all kinds of composite structural members, widen the applied range of bamboo and implement the diversification of component materials and forms in building structures. The paper presents a new-type box section bamboo-steel composite beams on the basis of I-section bamboo-steel composite beams, which take cold-formed thin-wall steel as the backbone, pastes bamboo plywood outer surface of steel sheet with structural adhesive, combines into box section bamboo-steel composite beams.

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Tingle, Jeb S., and Sarah R. Jersey. "Cyclic Plate Load Testing of Geosynthetic-Reinforced Unbound Aggregate Roads." Transportation Research Record: Journal of the Transportation Research Board 1936, no. 1 (2005): 60–69. http://dx.doi.org/10.1177/0361198105193600108.

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A laboratory research program designed to investigate geotextile and geogrid reinforcement of the aggregate layer in unbound pavement sections was performed by the U.S. Army Engineer Research and Development Center. The investigation's objective was to evaluate the performance of geosynthetic-reinforced aggregate road sections over a very soft subgrade. Standard construction materials were used to construct six aggregate road sections in a large steel box. Each instrumented road section was subjected to cyclic plate load tests to evaluate the performance of the model pavement sections under si

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TAKEMURA, Shinichiro, Mitao OHGA, Daisuke ATARASHI, and Hriokazu AIBARA. "Strength of Stiffened Round Corner Box-Section Piers." Journal of applied mechanics 7 (2004): 655–64. http://dx.doi.org/10.2208/journalam.7.655.

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Yan, Xiao-Lei, Guo-Qiang Li, and Yan-Bo Wang. "Q460C welded box-section columns under eccentric compression." Proceedings of the Institution of Civil Engineers - Structures and Buildings 171, no. 8 (2018): 611–24. http://dx.doi.org/10.1680/jstbu.16.00134.

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Liu, Y.-C., and M. L. Day. "Simplified modelling of thin-walled box section beam." International Journal of Crashworthiness 11, no. 3 (2006): 263–72. http://dx.doi.org/10.1533/ijcr.2005.0409.

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Kozlov, Aleksandr, Evgeniy Bulanov, V. Bulanova та Yu Kuzina. "То Question Layout Box Section Eccentrically Compressed Elements". Актуальные направления научных исследований XXI века: теория и практика 1, № 1 (2014): 10–14. http://dx.doi.org/10.12737/2273.

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