On the design of stiffened steel plate shear wall with diagonal stiffeners considering the crack effect

Structures ◽  
2021 ◽  
Vol 31 ◽  
pp. 828-841
Author(s):  
Alireza Khaloo ◽  
Ali Ghamari ◽  
Maryam Foroutani
2015 ◽  
Vol 2015 ◽  
pp. 1-16 ◽  
Author(s):  
Jin-yu Lu ◽  
Lu-nan Yan ◽  
Yi Tang ◽  
Heng-hua Wang

To determine the force mechanism for the steel plate shear wall with slits, the pushover analysis method was used in this study. An estimated equation for the lateral bearing capacity which considered the effect of edge stiffener was proposed. A simplified elastic-plastic analytical model for the stiffened steel slit wall composed of beam elements was presented, where the effects of edge stiffeners were taken into account. The wall-frame analysis model was established, and the geometric parameters were defined. Pushover analysis of two specimens was carried out, and the analysis was validated by comparing the results from the experiment, the shell element model, and a simplified model. The simplified model provided a good prediction of the lateral stiffness and the strength of the steel slit wall, with less than 10% error compared with the experimental results. The mutual effects of the bearing wall and the frame were also predicted correctly. In the end, the seismic performance evaluation of a steel slit wall-frame structure was presented. The results showed that the steel slit wall could prevent the beams and columns from being damaged by an earthquake and that the steel slit wall was an efficient energy dissipation component.


2014 ◽  
Vol 501-504 ◽  
pp. 563-567
Author(s):  
Zong Jing Li ◽  
Gan Ping Shu

When steel plate shear walls (SPSWs) are fitted into a long-span truss system, horizontal and vertical deformation should both be considered to evaluate the seismic performance of the structure. Numerical analysis is conducted to study the seismic performance of stiffened steel plate shear wall with opening subject to horizontal and vertical loading respectively based on a project. Results of the analysis indicate that stress distribution and deformation patterns of SPSW with opening are quite similar under horizontal and vertical loading. Stiffeners around the opening should be stretched to full height or width of the SPSW and strengthened by using larger thickness or width. The grids at the four corners of the opening are recommended to be further strengthened by additional stiffeners. SPSW with opening exhibits good hysteretic performance and energy dissipation in both loading directions.


2014 ◽  
Vol 638-640 ◽  
pp. 287-291
Author(s):  
Hai Xia Zhang ◽  
Qi Peng ◽  
Li Xuan Zhao

Shear wall is the main component that resists the lateral force for high-rise buildings. With the rapid development of high-rise buildings, especially the super high-rise buildings, requirements for seismic performance of shear walls have become more sophisticated. This introduction summarizes the commonly used in embedded development and existing problems of steel plate shear wall, which are stiffened steel plate shear wall, non-stiffened steel plate shear wall, composite steel plate shear wall, preventing buckling of steel plate shear wall and low yield point steel plate shear wall.


2010 ◽  
Vol 163-167 ◽  
pp. 205-210
Author(s):  
Hong Chao Guo ◽  
Ji Ping Hao ◽  
Feng Li

Based on the experiment of a one-third scale, single-span, two-storey semi-rigid composite steel frame model with cross-stiffened steel plate shear wall under lateral cyclic loadings, the interactive effect between the joint stiffness and the cross-stiffened steel plate shear wall, the failure mode and energy dissipation mechanism of the structure system were analyzed, some important parameters were obtained in regard to load-carrying capacity, ductility, stiffness and energy dissipation capacity. The results showed that the specimen exhibited excellent ductility, energy dissipation capacity and great safety margin; the stiffness degradation of the joints was not serious, the requirement of ductility was lowered by setting up infill panels, the cooperative work between the frame and the steel plate shear wall was well; stiffeners improved the force condition of steel panels, increased the stiffness and load-carrying capacity of panels, lightened the pinch of hysteretic loops and reduced the noise and tremor of panels. The failure mode of the structure induced by buckling of stiffeners, local buckling and interactive buckling of infill panels,plastic hinges were formed at the bottom of column and semi-rigid connection, the in-plane deformation of specimen was bending failure. The research provides a basis for engineering application and theoretical analysis of the structural system.


2016 ◽  
Vol 857 ◽  
pp. 7-12
Author(s):  
Swethamol Shaji ◽  
Deepa Varghese

For more than three decades, global attention and interest have grown in the application of steel plate walls for building lateral load resisting system. Some apparent advantages of using steel plate walls in a building include adequate energy dissipation, stable hysteretic characteristics and enhanced stiffness, strength and ductile behaviour. One of the simplest and cost effective solutions is to cut openings in steel plate in order to achieve high ductility which inturn results in an intense variation in stress distribution. In this paper, the shear buckling behaviour of a steel plate having cut outs is assessed numerically using ANSYS finite element program. The developed methodology is validated with results available in the literature. A parametric study is also carried out to study the buckling behaviour of steel plate with different shape and size of the cut outs. The study can be further modified to develop detailed methodology to perform buckling analysis of diagonally stiffened steel plate shear wall with cut outs.


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