scholarly journals Simple Evaluation Index of Structural Damage of High-Rise RC Buildings due to Long-Period Strong Ground Motions

2016 ◽  
Vol 16 (5) ◽  
pp. 5_33-5_45 ◽  
Author(s):  
Hirotoshi UEBAYASHI ◽  
Masayuki NAGANO ◽  
Katsuhiro KAMAE ◽  
Hidenori KAWABE
Keyword(s):  
Structural Damage ◽  
Ground Motions ◽  
Evaluation Index ◽  
Rc Buildings ◽  
Strong Ground Motions ◽  
High Rise ◽  
Long Period ◽  
Simple Evaluation ◽  
Strong Ground

On the Seismic Response of the Faculty of Architecture and Engineering Building at Tohoku University

2016 ◽  
Vol 32 (1) ◽  
pp. 523-545 ◽  
Author(s):  
Ying Wang ◽  
Enrique Villalobos ◽  
Santiago Pujol ◽  
Hamood Al-Washali ◽  
Kazuki Suzuki ◽  
...  
Keyword(s):  
Seismic Response ◽  
Ground Motion ◽  
Structural Damage ◽  
Ground Motions ◽  
Strong Ground Motions ◽  
First Motion ◽  
Strong Ground

The Faculty of Architecture and Engineering Building at Tohoku University survived two strong ground motions. This is not surprising because the structure was stiff and strong. What is surprising is that the first ground motion did not cause severe structural damage but the second one caused so much structural damage that the building had to be evacuated and demolished. The damage occurred despite two key facts: (1) the intensities of the mentioned ground motions are understood to have been similar and (2) the building was strengthened after the first motion (and before the second) following stringent standards.

Factors Influencing Maximum and Residual Deformations of SDOF Systems Subjected to Large Ground Motions

2011 ◽  
Vol 243-249 ◽  
pp. 170-177
Author(s):  
Peng Pan ◽  
Yu Zhang ◽  
Shi Yan Song ◽  
Lie Ping Ye
Keyword(s):  
Structural Parameters ◽  
Ground Motions ◽  
Stiffness Degradation ◽  
Maximum Deformation ◽  
Strong Ground Motions ◽  
Long Period ◽  
Short Period ◽  
Residual Deformations ◽  
Yield Force ◽  
Strong Ground

The maximum and residual deformations of structures subjected to strong ground motions are the most importance indexes, particularly under the performance-based design framework, thus understanding the influencing factors is of great importance to seismic design. In this study, single degree of freedom (SDOF) systems with varying structural properties are analyzed using a series of strong ground motions from FEM/SAC project. The influences of three structural parameters, i.e., yield force, second stiffness after yielding, and stiffness degradation, on the maximum and residual deformations are investigated based on the statistics of the analysis results. The analysis results suggest the follows: (1) larger yield forces lead to smaller residual and maximum deformations for short period structures, and they lead to smaller residual deformations but no necessarily smaller maximum deformation for intermediate and long period structures; (2) larger second stiffness lead to smaller residual and maximum deformations for short period structures, and they lead to smaller residual deformations but no necessarily smaller maximum deformation for intermediate and long period structures; (3) smaller stiffness degradation index leads to smaller maximum deformations but larger residual deformations.

Sign in / Sign up

Export Citation Format

Share Document