Study of Influences of Reduced Elastic Modulus of Concrete in Taiwan on the Seismic and Collapse Evaluation of RC Structures

被引：0

作者：

Hu W.-H. ^{[1
]}

Liao W.-C. ^{[1
]}

机构：

[1] Department of Civil Engineering, National Taiwan University, Taipei

来源：

Journal of the Chinese Institute of Civil and Hydraulic Engineering | 2019年 / 31卷 / 03期

关键词：

Collapse evaluation; Modulus of elasticity; Seismic evaluation;

D O I：

10.6652/JoCICHE.201905_31(3).0003

中图分类号：

学科分类号：

摘要：

According to recent research, the actual elastic modulus Ec of concrete in Taiwan is 80% of Ec calculated by current design code. Current codes which relate to Ec would be modified in the future because of the reduction of Ec. The objective of this research is investigating the influences of reduced Ec on current RC structure designs. Furthermore, this research also evaluates the seismic and collapse capability of structure with reduced Ec under the seismic load. Based on FEMA P695 report, this research builds control frame models (Ec = 15000 (fc')0.5) and experimental frame models (Ec = 12000 (fc')0.5) to conduct nonlinear push-over analysis, time history analysis and incremental dynamic analysis. The results show that the nonlinear responses of structures with reduced Ec would indeed lower both seismic and collapse capability. Although the capability of Experimental Frames (0.8 Ec) slightly decrease according to nonlinear analysis, all of them still meet the requirements of current code in Taiwan. © 2019, Chinese Institute of Civil and Hydraulic Engineering. All right reserved.

引用

页码：239 / 251

页数：12

共 11 条

[1]

Quantification of building seismic performance factors (ATC-63 Project), (2009)

[2]

(2006)

[3]

Miranda E., Bertero V.V., Evaluation of strength reduction factors for earthquake-resistant design, Earthquake Spectra 10, 10, 2, pp. 357-379, (1994)

[4]

Clough R.W., Penzien J., Dynamics of Structures, (1993)

[5]

Minimum Design Loads for Buildings and Other Structures (ASCE/SEI 7-16), (2016)

[6]

(2006)

[7]

Recommended seismic design criteria for new steel moment-frame buildings, (2000)

[8]

Baker J.W., Vector-valued ground motion intensity measures for probabilistic, (2005)

[9]

Ibarra L.F., Medina R.A., Krawinkler H., Hysteretic models that incorporate strength and stiffness deterioration, Earthquake Engineering and Structural Dynamics, 34, pp. 1489-1511, (2005)

[10]

Haselton C.B., Deierlein G.G., Assessing seismic collapse safety of modern reinforced concrete moment frame buildings, Blume Earthquake Engineering Center Technical Report 156, (2007)

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