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| Study on analysis of load tests for a simple supported composite beam bridge |
| Received:February 23, 2017 Revised:June 25, 2017 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7511/jslx20170223001 |
| KeyWord:loading tests simply supported composite beam bridge efficiency coefficient correction coefficient load-carrying capacity |
| Author | Institution |
| 贾毅 |
西南交通大学 土木工程学院, 成都 |
| 张莉亚 |
东南大学 土木工程学院, 南京 |
| 吴德宝 |
西南交通大学 土木工程学院, 成都 |
| 廖平 |
西南交通大学 土木工程学院, 成都 |
| 王永宝 |
太原理工大学 建筑与土木工程学院, 太原 |
| 李福海 |
西南交通大学 土木工程学院, 成都 |
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| Abstract: |
| Based on a simply supported composite beam bridge,the actual bearing capacity after reinforcement was studied by field loading test method.Firstly,arrangement of the strain,deflection and model measuring point were introduced.Then,according to load equivalence principle and internal force distribution characteristics,the most unfavorable load layout schemes of a typical section of the bridge were determined.Finally,the measured results and theoretical results were compared and analyzed.Which shows that the measured values of strain and deflection are smaller than the calculated values,and it can meet requirements of specifications.The capacity and stiffness of the bridge meet the requirements of design load and normal use.The transverse distribution coefficient is uneven,and the transverse transfer shear capacity of the bridge is weak. |
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