Investigation of the Seismic Performance of a Special Truss Moment Frame with SMAs Incorporated

ce/papers ◽  
2021 ◽  
Vol 4 (2-4) ◽  
pp. 1910-1916
Author(s):  
Maria Ntina ◽  
Dimitrios Sophianopoulos
Keyword(s):  
Seismic Performance ◽  
Moment Frame

Effect of bidirectional excitation on seismic performance of regular RC frame buildings designed for modern codes

2021 ◽  
pp. 875529302110478
Author(s):  
Payal Gwalani ◽  
Yogendra Singh ◽  
Humberto Varum
Keyword(s):  
Seismic Performance ◽  
Time History ◽  
Nonlinear Time History Analysis ◽  
Inelastic Behavior ◽  
Moment Frame ◽  
Frame Buildings ◽  
Bidirectional Excitation ◽  
Rc Frame Buildings ◽  
Nonlinear Time History ◽  
Hinge Model

The existing practice to estimate seismic performance of a regular building is to carry out nonlinear time history analysis using two-dimensional models subjected to unidirectional excitations, even though the multiple components of ground motion can affect the seismic response, significantly. During seismic shaking, columns are invariably subjected to bending in two orthogonal vertical planes, which leads to a complex interaction of axial force with the biaxial bending moments. This article compares the seismic performance of regular and symmetric RC moment frame buildings for unidirectional and bidirectional ground motions. The buildings are designed and detailed according to the Indian codes, which are at par with the other modern seismic codes. A fiber-hinge model, duly calibrated with the biaxial experimental results, is utilized to simulate the inelastic behavior of columns under bidirectional bending. A comparison of the estimated seismic collapse capacity is presented, illustrating the importance of considering the bidirectional effects. The results from fragility analysis indicate that the failure probabilities of buildings under the bidirectional excitation are significantly higher as compared to those obtained under the unidirectional excitation.

Effect of Powder Actuated Fasteners on the Seismic Performance of Steel Moment Frame Connections

2013 ◽  
Author(s):  
C. E. Watkins ◽  
B. W. Toellner ◽  
K. Laknejadi ◽  
E. Abbas ◽  
M. R. Eatherton
Keyword(s):  
Seismic Performance ◽  
Moment Frame ◽  
Steel Moment Frame

scholarly journals Experimental Study on the Seismic Performance of Steel H-Shaped Beam-to-Column Connections

2020 ◽  
Vol 20 (5) ◽  
pp. 1-9
Author(s):  
Seongyeon Seo
Keyword(s):  
Seismic Performance ◽  
Steel Structures ◽  
Initial Stiffness ◽  
Moment Frame ◽  
Shaped Beam ◽  
Shear Connections ◽  
Story Drift ◽  
Frame System ◽  
The Moment ◽  
Plastic Rotation Capacity

In terms of the moment frame system of steel structures, early brittle fractures developed in the H-shaped beam-to-column connection during the Northridge and Kobe earthquakes, thereby indicating insufficient seismic performance of these components. In this study, experiments were conducted on two-side shear connections of web and rib plate reinforcements of the flanges on an H-shaped beam-to-column connection. According to the test results, the H-shaped beam-to-column connections with two-side shear connections of beam web and rib plate reinforcements of the flanges were superior to the existing connections in terms of initial stiffness, energy dissipation capacity, and plastic rotational capacity. The test values exceeded 4.2%, 0.027 rad, and 125% in terms of story drift ratio, total plastic rotation capacity, and full plastic moment of the beam, respectively. Accordingly, the proposed H-shaped beam-to-column connection showed better performance than that of the intermediate moment frame regarding seismic design.

Seismic Performance of Beam-Column Connections for Special Moment Frame Using 600 MPa Flexural Reinforcement

2011 ◽  
Vol 23 (5) ◽  
pp. 591-601 ◽  
Author(s):  
Hyeon-Jong Hwang ◽  
Hong-Gun Park ◽  
Won-Seok Choi ◽  
Lan Chung ◽  
Jin-Keun Kim
Keyword(s):  
Seismic Performance ◽  
Moment Frame ◽  
Flexural Reinforcement ◽  
Special Moment Frame
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