• Title/Summary/Keyword: trapezoidally corrugated web-plate

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Hysteretic performance of SPSWs with trapezoidally horizontal corrugated web-plates

  • Kalali, Hamed;Hajsadeghi, Mohammad;Zirakian, Tadeh;Alaee, Farshid J.
    • Steel and Composite Structures
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    • v.19 no.2
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    • pp.277-292
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    • 2015
  • Previous research has shown that steel plate shear walls (SPSWs) are efficient lateral force-resisting systems against both wind and seismic loads. A properly designed SPSW can have high initial stiffness, strength, and energy absorption capacity as well as superior ductility. SPSWs have been commonly designed with unstiffened and stiffened infill plates based on economical and performance considerations. Recent introduction and application of corrugated plates with advantageous structural features has motivated the researchers to consider the employment of such elements in stiffened SPSWs with the aim of lowering the high construction cost of such high-performing systems. On this basis, this paper presents results from a numerical investigation of the hysteretic performance of SPSWs with trapezoidally corrugated infill plates. Finite element cyclic analyses are conducted on a series of flat- and corrugated-web SPSWs to examine the effects of web-plate thickness, corrugation angle, and number of corrugation half-waves on the hysteretic performance of such structural systems. Results of the parametric studies are indicative of effectiveness of increasing of the three aforementioned web-plate geometrical and corrugation parameters in improving the cyclic response and energy absorption capacity of SPSWs with trapezoidally corrugated infill plates. Increasing of the web-plate thickness and number of corrugation half-waves are found to be the most and the least effective in adjusting the hysteretic performance of such promising lateral force-resisting systems, respectively. Findings of this study also show that optimal selection of the web-plate thickness, corrugation angle, and number of corrugation half-waves along with proper design of the boundary frame members can result in high stiffness, strength, and cyclic performances of such corrugated-web SPSWs.

A Study on the Geometric Parameters that Influence the Trapezoidally Corrugated Webs Under Partial Edge Loading (제형파형강판의 지압 거동에 영향을 미치는 기하학적 인자에 관한 연구)

  • Choi, Yong Ju;Yi, Jong Won;Shin, Chul Ho;Lee, Hak Eun
    • Journal of Korean Society of Steel Construction
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    • v.18 no.1
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    • pp.81-91
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    • 2006
  • The corrugated web is a plate that was manufactured with a corrugated shape. It is widely used in bridges, buildings, and culverts. A girder with a corrugated web can be crippled by local, in-plane compressive loads. Due to its high out-of-plane strength, however, a stiffener is usually not needed in trapezoidally corrugated plates, and the corrugated profile of the web can change the boundary condition of the edge load. Some researchers have studied the strength of the partial-edge loading of the trapezoidally corrugated web, but they have not considered the profile of corrugation in their studies. This paper investigates the influence of the corrugate profile. A parametric study was conducted on the shape parameter using the finite-element method. In this parametric study, the relationship between the corrugated shape and the partial-edge strength was also investigated by dividing the partial-edge strength into the web capacity and the flange capacity.

A Study on the Geometric Parameters that Influence the Shear Buckling of Trapezoidally Corrugated Webs (제형파형강판의 전단거동에 영향을 미치는 기하학적 요소에 대한 연구)

  • Gill, Heung Bae;Lee, Seung Rok;Lee, Hak Eun;Lee, Pil Goo
    • Journal of Korean Society of Steel Construction
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    • v.15 no.5 s.66
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    • pp.591-601
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    • 2003
  • Because of their high out-of-plane and in-planes strength, trapezoidally corrugated plates have been increasingly used in buildings and bridges. If corrugated plates are used as the web of plate girders or prestressed concrete box girders, the flanges take most of the bending stress. On the other hand, the corrugated plate web supports shear stress due to the accordion effect. The corrugated plate web could fail by three different buckling modes: global, local, or interactive shear buckling. To determine the effects of geometric parameters on the buckling capacity of the corrugated plates, a parametric study was performed using finite dement method. The analysis results showed that the buckling capacity and modes depend on individual parameters as well as combinations of parameters.

Elastic Interactive Shear Buckling Behavior of Trapezoidally Corrugated Steel Webs (제형파형강판 복부판의 탄성 연성전단좌굴 거동)

  • Yi, Jong Won;Gill, Heung Bae;Lee, Hak Eun
    • Journal of Korean Society of Steel Construction
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    • v.17 no.6 s.79
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    • pp.707-715
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    • 2005
  • Corrugated webs have been used for composite prestressed concrete box girder bridges. Innovative steel plate girders using corrugated webs have been proposed. It has been found that analytical and experimental researches conducted to determine the strength of trapezoidally corrugated webs can fail with respect to three different buckling modes: local, global, and interactive shear buckling. Shear buckling capacity equations based on classical and orthotropic plate buckling theories have been proposed,but these equations show some differences. In this paper, geometric parameters that influence interactive shear buckling behavior with interaction effects are identified via extensive bifurcation buckling analysis using the finite element meth.

Numerical study on the structural performance of corrugated low yield point steel plate shear walls with circular openings

  • Shariati, Mahdi;Faegh, Shervin Safaei;Mehrabi, Peyman;Bahavarnia, Seyedmasoud;Zandi, Yousef;Masoom, Davood Rezaee;Toghroli, Ali;Trung, Nguyen-Thoi;Salih, Musab NA
    • Steel and Composite Structures
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    • v.33 no.4
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    • pp.569-581
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    • 2019
  • Corrugated steel plate shear wall (CSPSW) as an innovative lateral load resisting system provides various advantages in comparison with the flat steel plate shear wall, including remarkable in-plane and out-of-plane stiffnesses and stability, greater elastic shear buckling stress, increasing the amount of cumulative dissipated energy and maintaining efficiency even in large story drifts. Employment of low yield point (LYP) steel web plate in steel shear walls can dramatically improve their structural performance and prevent early stage instability of the panels. This paper presents a comprehensive structural performance assessment of corrugated low yield point steel plate shear walls having circular openings located in different positions. Accordingly, following experimental verification of CSPSW finite element models, several trapezoidally horizontal CSPSW (H-CSPSW) models having LYP steel web plates as well as circular openings (for ducts) perforated in various locations have been developed to explore their hysteresis behavior, cumulative dissipated energy, lateral stiffness, and ultimate strength under cyclic loading. Obtained results reveal that the rehabilitation of damaged steel shear walls using corrugated LYP steel web plate can enhance their structural performance. Furthermore, choosing a suitable location for the circular opening regarding the design purpose paves the way for the achievement of the shear wall's optimal performance.