ANALYSIS AND FIELD STATIC LOADING TEST OF PRESTRESSED CONCRETE BEAM

摘要：

Combining with the specific project, mechanical and deformation performance of a 31 m-span prestressed concrete beam are analyzed based on the field static load test. The deflections,effects of inverted arch and strain behavior of concrete and prestressed bars are measured, and the load-deflection curve of this beam is obtained. The bearing capacity and load effects of the beam in different stages are then analyzed. The results indicate the maximum midspan deflection is 24.46mm under service load and the value is 4.25mm when considering effects of inverted arch. The concrete of midspan section is always in compression, and no cracks appear and calculation of normal section crack resistance could fully meet the code requirements.

关键词： Prestressed concrete Static loading test Effects of inverted arch Anti-cracking calculation

作者: Qing-Xuan Shi Jin-Jie Men Qiu-Wei Wang Kun Yang

作者单位: College of Civil Engineering, Xian University of Architecture & Technology, Xian 710055,P.R. China College of Civil Engineering, Xian University of Architecture & Technology, Xian 710055,P.R. Chin

会议类型: 国际会议

会议名称: 第十届国际结构工程青年学者研讨会(The Tenth International Symposium on Structural Engineering for Young Experts)

会议地点: 长沙

会议语种:英文

页码: 490-494

在线出版日期: 2008-10-19（万方平台首次上网日期，不代表论文的发表时间）