scholarly journals Seismic assessment of cold-formed steel stud bracing wall panels using direct displacement based design approach

2016 ◽  
Vol 15 (3) ◽  
pp. 1261-1277 ◽  
Author(s):  
Rojit Shahi ◽  
Nelson Lam ◽  
Emad Gad ◽  
John Wilson ◽  
Ken Watson
Keyword(s):  
Seismic Assessment ◽  
Design Approach ◽  
Direct Displacement Based Design ◽  
Wall Panels ◽  
Cold Formed Steel ◽  
Displacement Based ◽  
Steel Stud

An improvement of direct displacement-based design approach for steel moment-resisting frames controlled by fluid viscous dampers

2021 ◽  
pp. 136943322199249
Author(s):  
Mahsa Noruzvand ◽  
Mohtasham Mohebbi ◽  
Kazem Shakeri
Keyword(s):  
Performance Level ◽  
Design Approach ◽  
Excellent Performance ◽  
Steel Moment Resisting Frames ◽  
Moment Resisting Frames ◽  
Earthquake Records ◽  
Direct Displacement Based Design ◽  
Moment Resisting ◽  
Displacement Based ◽  
Spectral Velocity

Direct displacement-based design (DDBD) method is one of the most effective methods for performance-base design of structures that has been also employed to design structures controlled by fluid viscous damper (FVD). In previous studies, a modified DDBD has been developed to apply the higher mode effects as well as difference between spectral velocity and pseudo-spectral velocity on the design velocity of FVD. To this end, two constants were defined to correct the damping coefficient of FVD that these correction constants had been determined in a non-classical and iterative manner. In this study, a new classical method is proposed for determining these constant such that no iteration is required in DDBD. In order to be able to introduce this design approach as a reliable framework, its performance is validated under different sets of earthquake records and this design approach is also developed for structures controlled by nonlinear FVD. Steel moment-resisting frames with different numbers of stories have been designed using this method. For comparison, structures have been also designed based on DDBD proposed in previous researches. The results show that DDBD approach improved in this study is capable to achieve the design performance level under different sets of earthquake records and this design approach has more effective performance than previous design methods. Performance of steel moment-resisting frames equipped with nonlinear FVD also shows excellent performance of this design approach in achievement of desirable performance level. Therefore, DDBD approach proposed in this study can be introduced as a new classical and reliable framework because of its simplicity and excellent performance under different sets of earthquakes.

Blast Testing of Cold-Formed Steel-Stud Wall Panels

2016 ◽  
Vol 30 (2) ◽  
pp. 04015008
Author(s):  
Matthew J. Whelan ◽  
Adam D. Ralston ◽  
David C. Weggel
Keyword(s):  
Wall Panels ◽  
Blast Testing ◽  
Cold Formed Steel ◽  
Steel Stud

scholarly journals Experimental Response of Cold-formed Steel Stud Shear Wall with hardboard sheathing under seismic loading

2021 ◽  
pp. e00574
Author(s):  
Yasser E. Ibrahim ◽  
Asif Hameed ◽  
Asad Ullah Qazi ◽  
Ali Murtaza Rasool ◽  
Muhammad Farhan Latif ◽  
...  
Keyword(s):  
Seismic Loading ◽  
Shear Wall ◽  
Cold Formed Steel ◽  
Experimental Response ◽  
Steel Stud

A Displacement-Based Optimal Design Method of RC Frames Subjected to Minor Earthquakes

2012 ◽  
Vol 594-597 ◽  
pp. 795-799
Author(s):  
Gui Tao Chen ◽  
De Min Wei
Keyword(s):  
Optimal Design ◽  
Optimization Design ◽  
Virtual Work ◽  
Design Method ◽  
Horizontal Displacement ◽  
Target Displacement ◽  
Programming Technique ◽  
Direct Displacement Based Design ◽  
Rc Frames ◽  
Displacement Based

A displacement-based optimization design method of RC structure was proposed by combining direct displacement-based design method with nonlinear programming technique. To avert the influence of target displacement, the stationary constraint displacement was presented, and the target displacement can be updated during the optimal design process. Principle of virtual work and Gaussian integral method was employed to simplify the explicit relationship between horizontal displacement and the section dimension. Comparison analysis of the local optimal results corresponding to different displacement shapes was conducted to achieve global optimal design. The numerical tests presented demonstrate the computational advantages of the discussed methods and suggesting that the proposed method is a reliably and efficiently tool for displacement-based optimal design.

Sign in / Sign up

Export Citation Format

Share Document