Loading capacity of composite slim frame beams |
| |
Authors: | Yuanqing Wang Yongjiu Shi Ruhang Zhang |
| |
Affiliation: | Department of Civil Engineering, The Key Laboratory of Structure Engineering and Vibration of Ministry of Education, Tsinghua University, Beijing 100084, China |
| |
Abstract: | The estimation of the flexural stiffness and bending capacity of composite slim beams is rather complicated, because the influence of many factors should be taken into account. These factors include variable section dimensions, development of cracks and non-linear characteristics of concrete. This is especially true for the composite slim frame beam, in which the sagging moment region and the hogging moment region should both be considered. In this paper, experimental investigations have been conducted to investigate the flexural behavior of two specimens of composite slim frame beam with deep deck under monotonic loading. Based on the experimental results, formulas of calculating the bending capacity and flexural stiffness in the hogging moment region of the slim beam with deep deck has been proposed. Combining these formulas with existing formulas of sagging moment, formulas for the equivalent stiffness and the design method of the frame slim beam have been developed. The feasibility of the proposed formulas and design method has been verified by the test results. |
| |
Keywords: | Composite slim frame beam Experimental study Bending resistance Flexural stiffness Deep deck |
本文献已被 ScienceDirect 等数据库收录! |
|