scholarly journals Damage-control Seismic Design of Moment-resisting RC Frame Buildings

2013 ◽  
Vol 12 (1) ◽  
pp. 49-56 ◽  
Author(s):  
Huanjun Jiang ◽  
Bo Fu ◽  
Linzhi Chen
Keyword(s):  
Seismic Design ◽  
Damage Control ◽  
Rc Frame ◽  
Frame Buildings ◽  
Moment Resisting ◽  
Rc Frame Buildings

Research on Seismic Damage of Buildings in the Beichuan Earthquake

2014 ◽  
Vol 580-583 ◽  
pp. 1613-1617
Author(s):  
Fan Wang ◽  
Chen Ning
Keyword(s):  
Seismic Design ◽  
Plastic Hinge ◽  
Seismic Damage ◽  
Rc Frame ◽  
Analysis Software ◽  
Element Analysis ◽  
Frame Buildings ◽  
Rc Frame Buildings ◽  
Component Failures ◽  
Beichuan County

This paper mainly discusses seismic damage of RC frame buildings in Beichuan county based on the investigation on the spot. The building damage forms are classified and component failures are analyzed. Applying finite element analysis software, the performance of RC frame buildings under severe earthquake is simulated and the components plastic hinge development is researched. The analysis results are made a comparison with real damage of buildings in this paper and some suggestions are proposed to seismic design.

scholarly journals Incorporation of Torsional & Higher-Mode Responses in Displacement-Based Seismic Design of Asymmetric RC Frame Buildings

2019 ◽  
Vol 9 (6) ◽  
pp. 1095
Author(s):  
Beka Abebe ◽  
Jong Lee
Keyword(s):  
Seismic Design ◽  
Time History ◽  
Nonlinear Time History Analysis ◽  
Rc Frame ◽  
Performance Objective ◽  
Frame Buildings ◽  
Displacement Based ◽  
Rc Frame Buildings ◽  
Plan Configuration ◽  
Displacement Based Seismic Design

Direct displacement-based design (DDBD) is currently a widely used displacement-based seismic design method. DDBD accounts for the torsional response of reinforced concrete (RC) frame buildings by using semi-empirical equations formulated for wall-type buildings. Higher-mode responses are incorporated by using equations obtained from only a few parametric studies of regular planar frames. In this paper, there is an attempt to eliminate torsional responses by proportioning frames’ secant stiffnesses so that the centers of rigidity and supported mass (the mass on and above each story) coincide. Once the torsional rotations are significantly reduced and only translational motions are achieved, higher-mode responses are included using a technique developed by the authors in their recent paper. The efficiency of the proposed design procedure in fulfilling the intended performance objective is checked by two plan-asymmetric 20-story RC frame building cases. Case-I has the same-plan configuration while Case-II has a different-plan configuration along the height. Both cases have different bay widths in orthogonal directions. Verification of the case studies by nonlinear time history analysis (NTHA) has shown that the proposed method results in designs that satisfy the performance objective with reasonable accuracy without redesigning members. It is believed that a step forward is undertaken toward rendering design verification by NTHA less necessary, thereby saving computational resources and effort.

Practitioner-friendly design method to improve the seismic performance of RC frame buildings

2021 ◽  
pp. 875529302098801
Author(s):  
Orlando Arroyo ◽  
Abbie Liel ◽  
Sergio Gutiérrez
Keyword(s):  
Seismic Performance ◽  
Design Method ◽  
Three Dimensional ◽  
Rc Frame ◽  
Structural System ◽  
Standard Code ◽  
Frame Buildings ◽  
Rc Frame Buildings ◽  
Mathematical Justification ◽  
Story Building

Reinforced concrete (RC) frame buildings are a widely used structural system around the world. These buildings are customarily designed through standard code-based procedures, which are well-suited to the workflow of design offices. However, these procedures typically do not aim for or achieve seismic performance higher than code minimum objectives. This article proposes a practical design method that improves the seismic performance of bare RC frame buildings, using only information available from elastic structural analysis conducted in standard code-based design. Four buildings were designed using the proposed method and the prescriptive approach of design codes, and their seismic performance is evaluated using three-dimensional nonlinear (fiber) models. The findings show that the seismic performance is improved with the proposed method, with reductions in the collapse fragility, higher deformation capacity, and greater overstrength. Furthermore, an economic analysis for a six-story building shows that these improvements come with only a 2% increase in the material bill, suggesting that the proposed method is compatible with current project budgets as well as design workflow. The authors also provide mathematical justification of the method.

Robustness Assessment of RC Frame Buildings under Column Loss Scenarios

2014 ◽  
Author(s):  
Yihai Bao ◽  
Joseph A. Main ◽  
H. S. Lew ◽  
Fahim Sadek
Keyword(s):  
Rc Frame ◽  
Frame Buildings ◽  
Rc Frame Buildings ◽  
Robustness Assessment

Damage and Loss Assessment of Pre-70 RC Frame Buildings with FEMA P-58

2016 ◽  
Vol 21 (1) ◽  
pp. 23-61 ◽  
Author(s):  
Donatello Cardone ◽  
Giuseppe Perrone
Keyword(s):  
Rc Frame ◽  
Loss Assessment ◽  
Frame Buildings ◽  
Rc Frame Buildings
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