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某高架立交位于长沙市二环线东北角,各匝道宽度均为9.3m,沿立交桥四角右转弯匝道均设置了人行道。该立交桥是联系长沙金霞经济开发区、长沙城区、长沙国家级经济技术开发区和三环线的交通枢纽。该复杂高架立交桥梁竣工没多年运营之后由于交通拥堵后车辆排队紧靠东侧栏杆一个车道通行,造成桥梁向东偏转,西侧翘起20cm左右,为了解该桥的运营工作性能,对该高架立交桥梁进行现场外观调查,并进行静动载试验测试,研究结果为该桥的工作状态进行评价及建议。
An elevated interchange is located in the northeast corner of the Second Ring Road in Changsha. The width of each ramp is 9.3m. A sidewalk is provided along the right turn ramp at the four corners of the overpass. The overpass is to contact Changsha Jinxia Economic Development Zone, Changsha City, Changsha National Economic and Technological Development Zone and the traffic circle of the Third Ring Road. The complex overpass after the completion of the bridge has not completed many years of operation due to traffic congestion after the vehicle line up close to a driveway on the east side of the railing, causing the bridge deflected east, west tilt about 20cm, in order to understand the operational performance of the bridge, the elevated Overpass bridge to conduct on-site appearance survey, and static and dynamic load test, the research results for the bridge’s work status evaluation and recommendations.