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Journal articles on the topic 'Portal frame structure'

Author: Grafiati

Published: 4 June 2021

Last updated: 9 February 2022

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1

BASAGA, H. B., M. E. KARTAL, and A. BAYRAKTAR. "RELIABILITY ANALYSIS OF STEEL BRACED REINFORCED CONCRETE FRAMES WITH SEMI-RIGID CONNECTIONS." International Journal of Structural Stability and Dynamics 12, no. 05 (2012): 1250037. http://dx.doi.org/10.1142/s021945541250037x.

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This paper presents the reliability analysis of the frame structures with semi-rigid connections. For this purpose, the SEMIFEM finite element program that is capable of dealing with the semi-rigid connections is coded in FORTRAN. Then, this program is connected to the reliability algorithm. The direct coupling method, which is a combination of the reliability method and finite element method, is utilized to determine the reliability indexes and probabilities of failure for the structure. The first order reliability method (FORM) is the one favored in the present reliability analysis. Two sets

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2

Sharma, B., D. Mitch, K. A. Harries, K. Ghavami, and G. Kharel. "Pushover behaviour of bamboo portal frame structure." International Wood Products Journal 2, no. 1 (2011): 20–28. http://dx.doi.org/10.1179/2042645311y.0000000003.

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3

Zhang, Shao Jun. "All Steel Structure Portal Frame Light Building Structure Design." Applied Mechanics and Materials 496-500 (January 2014): 2575–77. http://dx.doi.org/10.4028/www.scientific.net/amm.496-500.2575.

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According to the whole steel structure portal frame light plant design requirements, its architectural plane design, plant height determination, the determination of axis positioning, building facade design, from the column selection, auxiliary component orientation, profile design, daylighting, ventilated, plant, heat preservation, heat insulation design and other aspects are discussed.

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4

Li, Qi Cai, Zhen Shan Wang, Ming Zhou Su, Xue Chao Shao, and Lin Shen. "Experiment on the Hysteretic Behaviors of Light-Weight Steel Portal Frame with Tapered Members." Advanced Materials Research 368-373 (October 2011): 206–10. http://dx.doi.org/10.4028/www.scientific.net/amr.368-373.206.

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In order to study the seismic behavior of steel portal frame structures, Cyclic loading test on a 1:3-scaled model of single-story single-bay steel portal frame with tapered members has been carried out. Based on test results, hysteretic curve, skeleton curve, stiffness degradation and transverse displacement of the structure are obtained. Meanwhile, the seismic performances of the structure are analyzed from aspects of ductility, energy consumption, stiffness degradation, bearing capacity, etc. It is concluded that ductility and energy consumption capacity of this structure are poor; because

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5

Chen, Ming, and Xiao Fei Ma. "In-Plane Stability Bearing Capacity of Variable Section Column." Applied Mechanics and Materials 578-579 (July 2014): 717–22. http://dx.doi.org/10.4028/www.scientific.net/amm.578-579.717.

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Variable section portal frame is increasingly concerned and is widely used for its economy, beauty and short construction period, compared with other traditional structures. In-plane stability response of variable section columns of portal frames is the focus of this paper. Results are presented for parameters influence of variable section column on the in-plane stability bearing capacity with finite element analysis. References are proposed for practical application compared with computational formulas of Technical Specification for Steel Structure of Light-Weight Buildings with Gabled Frames

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6

Liang, De Zhi, and Min Huang. "Study on Vertical Wind-Induced Vibration Response for Portal Frame Structures." Applied Mechanics and Materials 71-78 (July 2011): 3605–9. http://dx.doi.org/10.4028/www.scientific.net/amm.71-78.3605.

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In recent years, as the portal frame’s height toward higher and the span toward wider, the influence of wind vibration becomes more and more prominent among the portal frame structure. In the design of the portal frame, there are many different opinions on whether considering the impact of the vertical wind vibration to the portal frame. This paper taking a true engineering as an example, using finite element software to establish the solid model of the portal frame structure, selecting the junction of purlin and roof as a node of imposing vertical fluctuating wind load, we made numerical simu

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Liu, Feng, and Xiao Yan Wang. "Overall Reliability Assessment of Portal Frame Structure with Roof Beam Outward Offset." Applied Mechanics and Materials 501-504 (January 2014): 628–33. http://dx.doi.org/10.4028/www.scientific.net/amm.501-504.628.

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This article deals with the condition that the roof beams of portal frame are outward offset beyond the standard limit, determines the most unfavorable position of the portal frame structure under the load and establishes the criterion standard of structural failure based on the space overall finite element analysis. It adopts Monte-Carlo method in reliability analysis methods to realize the overall reliability analysis of the portal frame structure with the roof beam outward offset. Analysis shows that the actual structure is at safe state under the design load and the reliability conforms to

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8

Wu, Chao, Ya-Nan Li, Lik-Ho Tam, and Li He. "Stability Optimization of Trapezoidal Frame with Rigid Members and Flexible Joints." Advances in Civil Engineering 2020 (June 2, 2020): 1–9. http://dx.doi.org/10.1155/2020/8865888.

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Stability has been an important subject in the design of a portal frame structure. Conventional stability analysis of the portal frame is normally conducted assuming that all the joints are rigid. However, the joints of a portal frame in real applications are not always rigid and semirigid connections often exist. AISC design code requires that the effect of the joint flexibility on the behavior and buckling capacity of the portal frame should be taken into account in the analysis and design procedures. To address this issue, a portal frame with flexible joints and rigid members was theoretica

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9

Huang, Zhi, Li Zhong Jiang, and Wang Bao Zhou. "Force Performance Research for the Interior Joint of New Light-Weight Portal Rigid Frame." Advanced Materials Research 499 (April 2012): 388–92. http://dx.doi.org/10.4028/www.scientific.net/amr.499.388.

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The portal frame is one kind of the common structural styles in the light steel structure. And the portal frame is designed by tapered members, which can be suitable for the variety of the bending moment diagram. This paper introduces the new structure dividing the middle column into two parts on the top of the middle column and analysis the frame with SAP2000. The parameters are investigated such as the hinge joint and firm joint at the bottom of the column and also the parameter of the science of geometry, which influence the load-carrying behavior of the portal frame. The analysis gives tha

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10

Sari, Mutia Intan, Abdullah Abdullah, and Mochammad Afifuddin. "PERILAKU LATERAL SIKLIK PORTAL BETON BERTULANG BERISI DINDING BATA MERAH." Jurnal Teknik Sipil 1, no. 4 (2018): 845–56. http://dx.doi.org/10.24815/jts.v1i4.10044.

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Abstract: Generally, brick masonry is used as infill wall material for houses and buildings. The Infill wall is installed once the structure is constructed, and assumed as the dead load for the structure. In fact, infill wall may contribute significant stiffness to the structure. As a consequent, the structure may develop such higher base shear forces due to the large stiffness of the structure. The purpose of this research is to evaluate the behavior of the reinforced concrete frame specimen with red brick infill wall and the specimen without using any infill wall. The size of the frame speci

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11

Wang, Zhen Shan, Ming Zhou Su, An Liang Song, Zhen Pang, and Lin Shen. "Aseismic Test and Finite Element Analysis of Light-Weight Steel Portal Frame with Tapered Members." Advanced Materials Research 368-373 (October 2011): 211–14. http://dx.doi.org/10.4028/www.scientific.net/amr.368-373.211.

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To study on the failure model, ductility, energy dissipation capacity, structural displacement, and stiffness of the portal frame structures on the effect of earthquake force, a pseudo-static experiment with a 1/3 scaled model has been completed. Based on the test result, though the ductility and the energy consumption capacity of the structure are poor, the requirement on aseismatic bearing capacity is satisfied, because the structure suffers the smaller seismic force as the deadweight of structure is light. Built up a finite element model according to the test specimen, then performed finite

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12

Kang, Zuo Yi, Zhi Jun Han, Guo Yun Lu, and Zhi Fang Liu. "Computer Simulation of Static Buckling of Double-Layer Portal Frame." Applied Mechanics and Materials 94-96 (September 2011): 2070–73. http://dx.doi.org/10.4028/www.scientific.net/amm.94-96.2070.

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The buckling of no-way double-layer portal frame that column is fixed is simulated by using ANSYS. Through analyzing the portal frame subjected to different loads on the roof of the structure that are uniform load, trapezoidal load and triangular load, the critical buckling load of the double-layer portal frame and buckling mode are obtained. The regular between the critical buckling load and the form of the load on the roof can be acquired by the analysis of the results, which can be used as a reference for engineering application.

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13

Chen, Xu, and Hui Min Li. "The Alculation Method of Stable Bearing Capacity of Portal Frame." Applied Mechanics and Materials 351-352 (August 2013): 329–36. http://dx.doi.org/10.4028/www.scientific.net/amm.351-352.329.

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In recent years, the portal frame structure in the actual project has been widely used, but using the finite element method calculation of stable bearing capacity of portal frame is more complex, and very difficult to the design and construction personnel. With the known stability of the cantilever column carrying capacity and the vertex of the lateral displacement under concentrated force, the establishment of the ratio of the portal frame stability capacity and the stability of the cantilever column carrying capacity both in the same concentrated force vertex lateral displacement than the re

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14

Zhang, Xiao Wei, Zhong Ming Xiong, and Ni Na Su. "The Analysis and Application Research on the Space Work of Portal Frame." Applied Mechanics and Materials 166-169 (May 2012): 501–4. http://dx.doi.org/10.4028/www.scientific.net/amm.166-169.501.

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In this paper, the application of finite element software with the actual structure of the field static load test for the engineering background, describes the space effect of portal frame under vertical load. Established a gymnasium mode of portal frame through the finite element software, quantitative analysis the space effect under the vertical load, and studied the spatial interaction of longitudinal anti-lateral component to the overall structure, and compared with the results of the field static load test. The calculation results show that, the reduction of spatial effect to internal for

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15

Liu, Yan, Li Juan Guo, Hui Ling Wang, and Fei Wang. "Research of the Influence of Snow Load Distribution Factor on Mechanical Performance of Portal Frame." Applied Mechanics and Materials 578-579 (July 2014): 846–49. http://dx.doi.org/10.4028/www.scientific.net/amm.578-579.846.

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The dissertation studies the force and deformation features of the portal frame structure under the snow load and load combination. The double cross gable portal frame model was established by 3d3s software in the paper, and analyzed under snow loading according to the regulations of China, Europe and the United States respectively. And some suggestions were put forward on the design of light-weight steel structure in China according to the comparison and analysis.

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16

Desnalia, Desnalia Lia, Leonardus Setia Budi Wibowo, Didik Purwanto, and Norman Ray. "Analisis Simpangan Pada Portal Terbuka dan Portal Tertutup Pada Bangunan Bertingkat Beton Bertulang." Ge-STRAM: Jurnal Perencanaan dan Rekayasa Sipil 3, no. 1 (2020): 24. http://dx.doi.org/10.25139/jprs.v3i1.2437.

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In designing structures such as portals, planning generally does not take into account filler components such as bricks as structural components, only considered non-structural components / flat sharing loads. In fact, the infill wall is composed of bricks with mortars which have a certain strength and rigidity. As a result, when an earthquake occurs, the most damage is to buildings with brick infill walls In this study, two types of high-level building floors were made, namely 5 floors and 10 floors with 2 structural models of each level, namely the open and closed portal structure models tha

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17

Lang, Yuxiao, and Lianguang Jia. "Seismic performance analysis of wedge-shaped Castellated portal frame." MATEC Web of Conferences 175 (2018): 02033. http://dx.doi.org/10.1051/matecconf/201817502033.

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In order to study the seismic performance of wedge-shaped light steel castellated portal frame, the finite element analysis software Abaqus is used to simulate the seismic behavior of the portal frame with a single span hexagonal hole with a span of 24m. The influence of the opening ratio and the distance between the first hole of the near column and the end to the column edge on the hysteretic curve, skeleton curve, stiffness degeneration, ductility and energy dissipation capability are analyzed and the ultimate destructive form is also obtained. The results show that under the low cycle reci

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18

Chen, Shui Fu, and Ying Gong. "Pushover Analysis of Light-Weight Steel Portal Frame Structures under Strong Wind Loading." Advanced Materials Research 446-449 (January 2012): 386–89. http://dx.doi.org/10.4028/www.scientific.net/amr.446-449.386.

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An elastic-plastic pushover analysis has been performed to a typical two-bay light-weight steel portal frame for investigation of the nonlinear load-deformation behaviors of the structure under strong wind loading. The finite-element model is first established for the portal frame. Then the monotonically increased lateral load and uniformly distributed vertical load representing wind loading are applied to the frame while the structure deforms from full elastic range to elastic-plastic stage. The loading process continues until the top displacement reaches its target value or enough number of

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19

Roberts, M. J., J. M. Davies, and Y. C. Wang. "Numerical analysis of a clad portal frame structure tested to destruction." Structures 33 (October 2021): 3779–97. http://dx.doi.org/10.1016/j.istruc.2021.06.098.

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20

Liu, Shen Ru, Hui Zhu Yang, Zhi Guo Chang, and Qi Lin Zhang. "Integrated CAD Software with ERP Interface for Steel Portal Frames." Advanced Materials Research 139-141 (October 2010): 2136–39. http://dx.doi.org/10.4028/www.scientific.net/amr.139-141.2136.

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Steel portal frames have been widely designed and constructed in China since the end of the last century, and in recent years ERP management software systems have been used by more and more steel structure fabricators/constructors. This paper introduces the program principles and techniques of the development of integrated CAD software with ERP interface for the detailing design of steel portal frame structure, including the frame work, data structure, 3D modeling algorithm and automatic output of 2D drawings/ERP source data. In the system, steel members and connectors are modeled and visualiz

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21

Komatsu, Kohei, and Akihisa Kitamori. "Static and Dynamic Properties of Portal Frames Composed of Built-Up Sawn Square Timber." Wood Research Journal 3, no. 1 (2017): 36–43. http://dx.doi.org/10.51850/wrj.2012.3.1.36-43.

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In order to propose an alternative structural element to be used for wooden dwelling houses in rich forest area, we paid attentions to a portal frame structure which is composed of not glulam but built-up members whose raw materials are dried sawn timbers taken from plantation grown forest. For establishing design procedure of the structural element, we made two different types of portal frames and conducted, at first, basic dynamic test to estimate natural frequency and dumping factors by fixing small shake excitation machine on the portal frames, then static push-pull cyclic loading tests we

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22

Li, Dong Nan, Jing Yu Wu, and Cun En Chen. "Research of Optimization Design of Structural Concept about Portal Frame." Applied Mechanics and Materials 130-134 (October 2011): 719–24. http://dx.doi.org/10.4028/www.scientific.net/amm.130-134.719.

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There're two issues should be concerned about during the optimization design of structural concept. The one is The using performance of structure, the another is the cost of foundation should be contained in the cost of whole structure. And it is suggested that The cost performance in value engineering should be used during the optimization design of structural concept. In this paper, the method and the process of the optimum structural design is expounded by optimizing a structural concept of project.

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23

Liu, Feng, and Shun Cong. "Reliability Analysis of Portal Frame Based on Space Overall Ultimate Bearing Capacity." Applied Mechanics and Materials 501-504 (January 2014): 634–39. http://dx.doi.org/10.4028/www.scientific.net/amm.501-504.634.

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This article analyses the reliability of portal frame based on space overall ultimate bearing capacity. A double nonlinear numerical model is established according to the finite element software ANSYS to track the space overall ultimate bearing capacity of the structure and to make clear the failure modes of the structure. The article studies and discusses the reliability of the portal frame based on space overall ultimate bearing capacity, gets the range of the structural reliability index and the sensitive degree of each parameter on the reliability, and presents the measures to improve reli

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Toloue, Iraj, Mohd Shahir Liew, I. S. H. Harahap, and H. E. Lee. "A novel approach to enhance the accuracy of vibration control of Frames." E3S Web of Conferences 34 (2018): 01027. http://dx.doi.org/10.1051/e3sconf/20183401027.

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All structures built within known seismically active regions are typically designed to endure earthquake forces. Despite advances in earthquake resistant structures, it can be inferred from hindsight that no structure is entirely immune to damage from earthquakes. Active vibration control systems, unlike the traditional methods which enlarge beams and columns, are highly effective countermeasures to reduce the effects of earthquake loading on a structure. It requires fast computation of nonlinear structural analysis in near time and has historically demanded advanced programming hosted on powe

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25

Lenz, Wagner B., Mauricio A. Ribeiro, Rodrigo T. Rocha, Jose M. Balthazar, and Angelo M. Tusset. "Numerical Simulations and Control of Offshore Energy Harvesting Using Piezoelectric Materials in a Portal Frame Structure." Shock and Vibration 2021 (June 2, 2021): 1–11. http://dx.doi.org/10.1155/2021/6651999.

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Buoy systems are an alternative for micropowering small devices in remote locations. Portal frames are very useful to harvest the energy of the waves into usable energy. Thus, using the current models for a portal frame in the literature and the spectrum of available energy in sea waves, a nonlinear mathematical model accounting for the coupling of a nonlinear piezoelectric material is considered. The neighbour of selected variables is analyzed and then optimized by a process utilizing the particle swarm optimization (PSO) algorithm. Furthermore, an optimal control using the linear-quadratic r

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26

Nwosu, D. I., and VKR Kodur. "Behaviour of steel frames under fire conditions." Canadian Journal of Civil Engineering 26, no. 2 (1999): 156–67. http://dx.doi.org/10.1139/l98-056.

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A state-of-the-art review of the behaviour of steel frame structures in fire is presented. Results from different studies indicate that the behaviour of a complete structure is different from that of a single structural member under fire conditions from the point of view of fire resistance. Earlier studies also show that analysis and design of steel structures against fire based on their overall behaviour could lead to a reduction or the elimination of applied fire protection to certain structural members. The effects of continuity, restraint conditions, and load ratio on the fire resistance o

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27

Yan, Wei, Wan Chun Li, and Wei Wang. "Finite Element EMI Model for Cracked Portal Frame and Parameter Study." Applied Mechanics and Materials 226-228 (November 2012): 1181–84. http://dx.doi.org/10.4028/www.scientific.net/amm.226-228.1181.

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Based on the three-dimensional finite element method (3D FEM), an electro-mechanical impedance (EMI) model is established for a cracked portal frame. In this analysis, the effect of the interfacial properties between the piezoelectric patches and the host structure on the EMI signatures is considered and thus a coupled structural system consisting of PZT patches, bonding layer and host structure is then investigated. Comparison with numerical results by other methods is made to validate the effectivity and accuracy of the proposed EMI model. The effects of various parameters including the mate

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28

Ding, Jianguo, Wei Zhuang, and Pingxin Wang. "Study on the Seismic Response of a Portal Frame Structure Based on the Transfer Matrix Method of Multibody System." Advances in Mechanical Engineering 6 (January 1, 2014): 614208. http://dx.doi.org/10.1155/2014/614208.

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Portal frame structures are widely used in industrial building design but unfortunately are often damaged during an earthquake. As a result, a study on the seismic response of this type of structure is important to both human safety and future building designs. Traditionally, finite element methods such as the ANSYS and MIDAS have been used as the primary methods of computing the response of such a structure during an earthquake; however, these methods yield low calculation efficiencies. In this paper, the mechanical model of a single-story portal frame structure with two spans is constructed

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29

Sugianto, Agus. "PORTAL BAJA OPEN FRAME SEBAGAI METODE PENANGANAN DELEKSI PIPA RAW WATER SUNGAI WAIN AREA BANGUNAN BENDALI REFINERY UNIT V BALIKPAPAN." Jurnal Kacapuri : Jurnal Keilmuan Teknik Sipil 2, no. 1 (2019): 1. http://dx.doi.org/10.31602/jk.v2i1.2059.

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Pada saat penggalian proyek Bendali berdampak pada terbukanya posisi pipa dan terjadi defleksi pada 2 unit pipa RAW sungai Wain yang berfungsi mengalirkan air dari Sungai Wain ke unit Refinery Pertamina RU V dimana suplai air tersebut tidak diperbolehkan untuk terhenti atau terganggu.Penanganan defleksi pada pipa RAW sungai Wain dilakukaan dengan tujuan agar tegangan (stress) yang terjadi pada pipa menjadi berkurang sehingga resiko terhadap kegagalan material pipa dapat dikurangi, menggunakan peralatan mekanis serta struktur bantu berupa open frame dari baja profil. Pengangkatan menggunakan 4

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Chen, Hao, Jiu Ping Wei, Tian Wang, and Ting Ting Ma. "The Seismic Performance Analysis of Light Steel Story-Adding on Steel Frame." Applied Mechanics and Materials 501-504 (January 2014): 1573–79. http://dx.doi.org/10.4028/www.scientific.net/amm.501-504.1573.

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It is common for using light steel structure as an upper layer to alter the multi-layer frame structure. But it is easy to form vertical irregular structure of rigid upper and flexible bottom. And the mass, stiffness, period and damping ratio are change after layer-adding. So it should take a holistic analysis of the structure. By using sap2000 to simulate a two-layer steel frame with a portal frame added, the seismic performance was analyzed. The result shows: transfer floor was relatively weak, it requires attention when seismic design; damping ratio has a great influence to seismic, it shou

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Yin, Ling Feng, Long Tan, Gan Tang, Min Zhang, and Zhao Xin Zheng. "Structure Composition and Mechanical Principle of Assembled Self-Supported Warehouse." Advanced Materials Research 838-841 (November 2013): 574–78. http://dx.doi.org/10.4028/www.scientific.net/amr.838-841.574.

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This paper describes the structure composition and characteristic of assembled self-supported warehouse. And its mechanical principle is introduced and compared with both the assembled pallet rack and the building structure. The assembled self-supported warehouse combines the two structure systems effect. The longitudinal horizontal load is transferred to foundation by means of roof truss and multi-pan portal rigid frame and the lateral horizontal load is transferred by means of spine bracing system and semi-rigid frame. Load on roof and goods load are transferred separately from roof truss an

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32

Pogonowska-Płatek, Sylwia, and Wojciech Dornowski. "Stability analysis of steel frames according to Eurocode 3." Bulletin of the Military University of Technology 68, no. 2 (2019): 145–63. http://dx.doi.org/10.5604/01.3001.0013.3008.

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In the paper, the qualitative and quantitative comparison of EC3 methods to verify the global stability of the structure is presented. The steel portal frame subjected to varied loads is considered. The initial global sway imperfection and the initial local bow imperfections of member frame are taken into account. The sensitivity of a structure to the 2nd order effects is assessed indirectly using the elastic critical load. The elastic critical load of a frame is calculated according to the buckling mode. The 2nd order effects are taken into account using the finite element method. Keywords: s

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Putra, Zulfazly, and Johannes Tarigan. "Performance Analysis of Steel Portal Structures with Braces Designed Based on Allowable Interstory Drift Limits." Simetrikal: Journal of Engineering and Technology 1, no. 2 (2019): 87–102. http://dx.doi.org/10.32734/jet.v1i2.979.

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Abstract. The earthquake resistant steel frame structure is designed to be able to withstand large inelastic deformations in the case of an earthquake. The applicable regulations still allow the use of elastic design methods in the form of pushover analysis and time history analysis evaluation as the basis for the design. The building under consideration consists of six floors with the function as an office building. The location of the building is in Banda Aceh with soft soil conditions. The structural analysis used the help of the Extended Three Dimensional Analysis of Building System Progra

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., M. Muthulakshmi, and M. Vinod Kumar . "Experimental Studies on Fibre Integrated Lightweight Concrete Frames Under Lateral Forces: A Review." Asian Journal of Engineering and Applied Technology 7, no. 1 (2018): 88–91. http://dx.doi.org/10.51983/ajeat-2018.7.1.874.

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Reinforced Concrete (RC) framed structure with masonry infill is the most common type of building in which, RC frames participate in resisting lateral forces. The poor performance of RC frame buildings under lateral forces is due to its heavy mass and rigid construction. Use of Lightweight concrete (LWC) is preferred since the dead load of concrete is enormous. A low density of the LWC, decreases the weight of the building thus reducing the effect of lateral forces. However, LWC having a lower modulus of elasticity, has a faster rate of crack development in RC members. So, fibres are employed

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Jebur, Hawraa Qasim, and Salah Rohaima Al-Zaidee. "Non-deterministic Approach for Reliability Evaluation of Steel Portal Frame." Civil Engineering Journal 5, no. 8 (2019): 1684–97. http://dx.doi.org/10.28991/cej-2019-03091363.

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In recent years, more researches on structural reliability theory and methods have been carried out. In this study, a portal steel frame is considered. The reliability analysis for the frame is represented by the probability of failure, P_f, and the reliability index, β, that can be predicted based on the failure of the girders and columns. The probability of failure can be estimated dependent on the probability density function of two random variables, namely Capacity R, and Demand Q. The Monte Carlo simulation approach has been employed to consider the uncertainty the parameters of R, and Q.

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Ülker-Kaustell, Mahir, Raid Karoumi, and Costin Pacoste. "Simplified analysis of the dynamic soil–structure interaction of a portal frame railway bridge." Engineering Structures 32, no. 11 (2010): 3692–98. http://dx.doi.org/10.1016/j.engstruct.2010.08.013.

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Huang, Zhen, Yong Jun Wu, and Chang Zhang. "Bamboo Strengthened with Carbon Fiber Reinforced Polymer for the Substitutes of Steel Substructures." Key Engineering Materials 517 (June 2012): 233–37. http://dx.doi.org/10.4028/www.scientific.net/kem.517.233.

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This paper presents an investigation on the mechanical properties of bamboos Mao Zhu (Phyllostachys Pubescens) strengthened with carbon fiber reinforced polymer (CFRP) and used as the substitute of steel substructures for a low carbon construction. At first, a series experimental study is carried out to investigate the compressive strength, bending strength and tensile strength of Mao Zhu, which is strengthened with CFRP by different ways. Then the mechanical properties of bamboos with different strengthening methods of CFRP are compared. The most efficient strengthening method is suggested fo

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Ayuddin, Ayuddin. "GLOBAL STRUCTURAL ANALYSIS OF HIGH-RISE HOSPITAL BUILDING USING EARTHQUAKE RESISTANT DESIGN APPROACH." SINERGI 24, no. 2 (2020): 95. http://dx.doi.org/10.22441/sinergi.2020.2.003.

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Building designed has 1 to 8 floors with the quality of concrete f'c of 33.2 MPa, steel quality (fy) 400 MPa, and shear stress of 240 MPa. The building is analyzed by 3D structure modeling through ETABS Version 9.7 program by following all the rules and regulations applicable in Indonesia, such as the guidance of building structure and non-building, SNI 1726: 2012. This building design system is a high-rise building structure planned with a portal frame system with beams and columns as the main elements of structures made of conventional concrete. The beam carries the load transversely of its

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Nishiyama, M., H. Mugurama, and F. Watanabe. "Hysteretic restoring force characteristics of unbounded prestressed concrete framed structure under earthquake load." Bulletin of the New Zealand Society for Earthquake Engineering 22, no. 2 (1989): 112–21. http://dx.doi.org/10.5459/bnzsee.22.2.112-121.

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An analytical method, by which hysteretic restoring force characteristics of unbonded prestressed concrete framed structure can be statically pursued on the basis of material properties, is presented. The bond-slip relationship between concrete and prestressing tendon is taken into account, and thus the method covers unbonded members and bonded members. For verifying the propriety of the analytical method, the experiment is carried out on a portal frame with an unbonded prestressed concrete beam of 4.2 m in length and reinforced concrete columns of 1 m in height. High intensity reversed cyclic

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Felix, Jorge L. Palacios, José M. Balthazar, and Reyolando M. L. R. F. Brasil. "On Saturation Control of a Non-Ideal Vibrating Portal Frame Foundation Type Shear-Building." Journal of Vibration and Control 11, no. 1 (2005): 121–36. http://dx.doi.org/10.1177/1077546305047656.

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In this paper, we examine the nonlinear control method based on the saturation phenomenon and of systems coupled with quadratic nonlinear ties applied to a shear-building portal plane frame foundation that supports an unbalanced direct current with limited power supply (non-ideal system). We analyze the equations of motion by using the method of averaging and numerical simulation. The interaction of the non-ideal structure with the saturation controller may lead to the occurrence of interesting phenomena during the forward passage through the several resonance states of the systems. Special at

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Skejić, Davor, Ivan Čudina, Ivica Garašić, and Federico M. Mazzolani. "Behaviour of Steel Tubular Knee Joint in Aluminium Frames with Tension-Tie Element." Applied Sciences 11, no. 1 (2020): 70. http://dx.doi.org/10.3390/app11010070.

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Aluminium portal frames with a tension tie element are a commonly used type of aluminium structure. Due to the significant reduction in aluminium’s mechanical properties caused by welding, typical beam to column joints of such frames are formed using bolts and welded steel knee joints embedded in the structure. Expressions for the reliable assessment of the behaviour of such joints are lacking, thus limiting the use of aluminium portal frames. Although the behaviour of steel joints using hollow sections is well investigated, there are only a small number of studies regarding knee joints, none

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Liu, Hong Wei, and Jun Li. "Initial Stiffness Analysis of Steel Portal Frame End-Plate Connections Based on Finite Element Method." Advanced Materials Research 446-449 (January 2012): 867–70. http://dx.doi.org/10.4028/www.scientific.net/amr.446-449.867.

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Steel portal frame is easy to build,but the connection styles of end-plate have greater influence on the structure. In this paper, The formula about initial stiffness of end-plate connections has been given.The essay uses ANSYS to analyze the initial stiffness of end-plate connections. Several factors have also been analyzed about the stiffness.The conclusion is that the form of end-plate, thickness, bolt diameter all affect the structural deflections.But these reasons couldn’t change the integral moment of the structure.

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Ervitasari, Bellinda Putri, and Basuki Agus Suparno. "THE FIREHOUSE OF FALSEHOOD OF RATNA SARUMPAET’S HOAX IN MEDIA FRAME." Indonesian Journal of Communication Studies 13, no. 1 (2020): 28. http://dx.doi.org/10.31315/ijcs.v13i1.3850.

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Hoax often appears with massive political momentum, such as the atmosphere of the Presidential Election campaign. Its appearance is often related to other issues and can lead to confrontations on social media such as hatred, blasphemy, and humiliation. On October 2, 2018, the news of Ratna Sarumpaet being persecuted appeared on the internet. It was linked to imposing another camp after her several political colleagues echoed the report everywhere. It didn't take a long time for the police officer to uncover the truth, which turned out to be a hoax. The formulation of this research problem is h

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Chen, Guo Jin, Jing Ni, Tin Tin Liu, Hui Peng Chen, and Ming Xu. "Study on Material-Cutting with Electro-Hydraulic Servo Synchronization Control System for Large Band Saw Equipment." Advanced Materials Research 675 (March 2013): 86–90. http://dx.doi.org/10.4028/www.scientific.net/amr.675.86.

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Aiming at the cutting for various kinds of material, in order to solve the problems that the present large band saw equipment at home is poor in the synchronization of the sawing feed and is lack of the dedicated NC system, the paper introduces the electro-hydraulic servo drive and digital control technologies, researches the synchronous servo drive and cutting force feedback control technologies, and develops the sawing machine’s control system based on the above technologies. The NC system has been applied in the CNC band saw equipment of the large Portal style. The saw frame uses the struct

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Williams, Rupert G., William A. Wilson, and Reisa Dookeeram. "Analysis of the Response of a One-Storey One-Bay Steel Frame to Blast." Journal of Structures 2016 (June 26, 2016): 1–11. http://dx.doi.org/10.1155/2016/8571542.

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In recent years, there has been a considerable increase in perceived risks of blast loading attacks or similar incidents on structures. Blast design is therefore a necessary aspect of the design for building structures globally and as such building design must adapt accordingly. Presented herein is an attempt to determine the numerical response of a seismically designed single-degree-of-freedom (SDOF) structure to blast loading. The SDOF model in the form of a portal frame was designed to withstand a typical seismic occurrence in Northern Trinidad. Blast loads caused by applying a 500 kg charg

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Balthazar, José Manoel, Reyolando Manoel Lopes Rabelo da Fonseca Brasil, and F. J. Garzeri. "On Non-Ideal Simple Portal Frame Structural Model: Experimental Results under a Non-Ideal Excitation." Applied Mechanics and Materials 1-2 (September 2004): 51–58. http://dx.doi.org/10.4028/www.scientific.net/amm.1-2.51.

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We present measurements of the non-linear oscillations of a portal frame foundation for a non-ideal motor. We consider a three-time redundant structure with two columns, clamped in their bases and a horizontal beam. An electrical unbalanced motor is mounted at mid span of the beam. Two non-linear phenomena are studied: a) mode saturation and energy transfer between modes; b)interaction between high amplitude motions of the structure and the rotation regime of a real limited power motor. The dynamic characteristics of the structure were chosen to have one-to-two internal resonance between the a

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Karaton, Muhammet. "Nonlinear Earthquake Analysis of Reinforced Concrete Frames with Fiber and Bernoulli-Euler Beam-Column Element." Scientific World Journal 2014 (2014): 1–15. http://dx.doi.org/10.1155/2014/905963.

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A beam-column element based on the Euler-Bernoulli beam theory is researched for nonlinear dynamic analysis of reinforced concrete (RC) structural element. Stiffness matrix of this element is obtained by using rigidity method. A solution technique that included nonlinear dynamic substructure procedure is developed for dynamic analyses of RC frames. A predicted-corrected form of the Bossak-αmethod is applied for dynamic integration scheme. A comparison of experimental data of a RC column element with numerical results, obtained from proposed solution technique, is studied for verification the n

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Yang, Yang, Shiming Gao, Keyu Chen, Yayue Pan, and Ping Guo. "Vibration analysis and development of an ultrasonic elliptical vibration tool based on a portal frame structure." Precision Engineering 50 (October 2017): 421–32. http://dx.doi.org/10.1016/j.precisioneng.2017.06.016.

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Tabaddor, M. "Modal interactions in a frame under support motions." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 212, no. 8 (1998): 667–86. http://dx.doi.org/10.1243/0954406981521439.

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This paper presents the results from an experimental investigation into the planar, multi-mode response of a metallic portal frame to a harmonic support excitation. Forcing frequency and amplitude sweeps near the frequencies of the eighth and tenth modes of the structure revealed multi-mode responses. In the frequency interval surrounding that of the eighth mode, two additional lower-frequency modes, the fourth and the sixth, were excited. The mechanism responsible for the multimode behaviour of the frame is a combination internal resonance of the additive type. In addition, for a brief interv

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Li, Zhi Guo, Yu Guo, and Yu Jie Bi. "The Bearing Capacity Analysis of Wedge Cross-Section Based on Ansys." Applied Mechanics and Materials 166-169 (May 2012): 1245–49. http://dx.doi.org/10.4028/www.scientific.net/amm.166-169.1245.

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The lightweight steel portal frame structure has been extensively used in the industry and civil buildings in recent years, because of the rational force bearing, large numbers of tapered members appear in this kind of structure[1]. This part established the finite element model of tapered beam in the range of large-deflection and elastoplasticity by applying the theory of nonlinear finite element and ANSYS. Through the finite element calculation of this rate that wedge i-section beam elastic-plastic stability of the bearing capacity of influence.

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