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A Cyclic Backbone Curve for Shear-Critical Reinforced Concrete Walls
| 题名： | A Cyclic Backbone Curve for Shear-Critical Reinforced Concrete Walls |
| 正文语种： | 英文 |
| 作者： | Siamak Epackachi1; Nikhil Sharma2; Andrew Whittaker3; Ronald O. Hamburger4; Ayse Hortacsu5 |
| 作者单位： | 1Assistant Professor, Dept. of Civil Engineering, Amirkabir Univ. of Technology, 15875-4413 Tehran, Iran (corresponding author). 2Undergraduate Student, Dept. of Civil Engineering, Indian Institute of Technology Gandhinagar, Gujarat 382355, India. 3SUNY Distinguished Professor, Dept. of Civil, Structural and Environmental Engineering, Univ. at Buffalo, Buffalo, NY 14260.4Senior Principal, Simpson Gumpertz and Heger, San Francisco, CA 94111. 5Director of Projects, Applied Technology Council, Redwood City, CA, 94065. |
| 关键词： | backbone；normalized；analysis；component；boundary；force；angular；horizon；control；parameter |
| 摘要： | Backbone curves are used in seismic design standards as the basis for developing component models for nonlinear static and dynamic analysis. Herein, data from 240 tests of rectangular, barbell, and flanged shear-critical walls are assembled and analyzed to develop an improved cyclic backbone curve for use in nonlinear response-history analysis. Values of drift ratio and normalized lateral force at the control points on the cyclic backbone curve are identified. The effects of design parameters, including wall aspect ratio, axial load, day-of-test concrete compressive strength, vertical and horizontal web reinforcement ratio, reinforcement ratio in the boundary elements, and yield strength of reinforcement, on the coordinates of the control points are addressed. The accuracy of equations for peak shear strength is assessed using the collected test data. |
| 出版年： | 2019 |
| 期刊名称： | Journal of Structural Engineering |
| 卷： | 145 |
| 期： | 4 |
| 页码： | 1-14 |
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