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一、前言交通部于1981年下达任务,由交通部重庆公路科学研究所承担沙洋汉江公路大桥的结构试验工作。试验项目分为三类: (一) 箱梁体系转换过程中合龙段混凝土应力检测; (二) 主桥和引桥竣工静载试验; (三) 主桥和引桥竣工动载试验。三年中,随着工程施工进度,预埋和布置测试截面内的应变传感器。自1985年3月5日至3月19日,完成了箱梁体系转换过程中合龙段混凝土应力检测。自1985年5月30日至6月2日,完成了全桥的全部试验项目。为了确保试验结果的可靠性,在试验中采取了多截面、多测点和多传感方式的技术
I. Introduction The Ministry of Communications issued a task in 1981 and undertaken by the Chongqing Highway Science Research Institute of the Ministry of Communications on the structural test of the Shayang Hanjiang River Highway Bridge. The pilot projects are divided into three categories: (1) Concrete slab section stress detection during conversion of box girder system; (2) Completion static load test of main bridge and approach bridge; (3) Dynamic load test of main bridge and approach bridge completed. In three years, as construction progresses, strain sensors are embedded and arranged in the test section. From March 5, 1985 to March 19, 1985, the stress measurement of concrete closure in the box girder section was completed. From May 30 to June 2, 1985, all the pilot projects of the full bridge were completed. In order to ensure the reliability of the test results, multi-sectioned, multi-measuring point and multi-sensor technology