Evaluation of collapse-resistance of special truss moment frames as per FEMAp695 approach

2016 ◽  
Vol 126 ◽  
pp. 505-515 ◽  
Author(s):  
Vamsi Prasad Gade ◽  
Dipti Ranjan Sahoo
Keyword(s):  
Moment Frames ◽  
Collapse Resistance ◽  
Special Truss Moment Frames

Seismic Design and Performance Evaluation of Long-Span Special Truss Moment Frames

2019 ◽  
Vol 145 (7) ◽  
pp. 04019053 ◽  
Author(s):  
Chatchai Jiansinlapadamrong ◽  
KyoungSub Park ◽  
John Hooper ◽  
Shih-Ho Chao
Keyword(s):  
Performance Evaluation ◽  
Seismic Design ◽  
Moment Frames ◽  
Long Span ◽  
And Performance ◽  
Special Truss Moment Frames

scholarly journals Evaluation of Progressive Collapse Resistance of Steel Moment Frames Designed with Different Connection Details Using Energy-Based Approximate Analysis

2018 ◽  
Vol 10 (10) ◽  
pp. 3797
Author(s):  
Sang-Yun Lee ◽  
Sam-Young Noh ◽  
Dongkeun Lee
Keyword(s):  
Progressive Collapse ◽  
Initial Structure ◽  
Approximate Analysis ◽  
Moment Frames ◽  
Steel Moment Frames ◽  
Reduced Models ◽  
Collapse Resistance ◽  
Composite Slabs ◽  
Rbs Connections ◽  
Chord Rotation

This study evaluates the progressive collapse resistance performance of steel moment frames, individually designed with different connection details. Welded unreinforced flange-bolted web (WUF-B) and reduced beam section (RBS) connections are selected and applied to ordinary moment frames designed as per the Korean Building Code (KBC) 2016. The 3-D steel frame systems are modeled using reduced models of 1-D and 2-D elements for beams, columns, connections, and composite slabs. Comparisons between the analyzed results of the reduced models and the experimental results are presented to verify the applicability of the models. Nonlinear static analyses of two prototype buildings with different connection details are conducted using the reduced models, and an energy-based approximate analysis is used to account for the dynamic effects associated with sudden column loss. The assessment on the structures was based on structural robustness and sensitivity methods using the alternative path method suggested in General Services Administration (GSA) 2003, in which column removal scenarios were performed and the bearing capacity of the initial structure with an undamaged column was calculated under gravity loads. According to the analytical results, the two prototype buildings satisfied the chord rotation criterion of GSA 2003. These results were expected since the composite slabs designed to withstand more than 3.3 times the required capacity had a significant effect on the stiffness of the entire structure. The RBS connections were found to be 14% less sensitive to progressive collapse compared to the WUF-B ones.

Special truss moment frames with Vierendeel middle panel

1995 ◽  
Vol 17 (5) ◽  
pp. 352-358 ◽  
Author(s):  
Hisham S. Basha ◽  
Subhash C. Goel
Keyword(s):  
Moment Frames ◽  
Special Truss Moment Frames ◽  
Middle Panel
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