Steel truss pedestrian overpass static load test evaluation method considering pin hole gap influence

The invention provides a steel truss pedestrian overpass static load test evaluation method considering pin hole gap influence, and belongs to the technical field of bridge bearing capacity tests. Themethod comprises the following steps of: eliminating inelastic deformation of the steel trestle by p...

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Hauptverfasser: CHENG KUI, LIU SHIJIAN, ZHANG LEI, ZHUO XIAOLI, JIANG GUOFU, JU YUCAI, JIANG FENG, NING YIHAO, YANG YUHOU, JIANG JINGYI
Format: Patent
Sprache:chi ; eng
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Zusammenfassung:The invention provides a steel truss pedestrian overpass static load test evaluation method considering pin hole gap influence, and belongs to the technical field of bridge bearing capacity tests. Themethod comprises the following steps of: eliminating inelastic deformation of the steel trestle by partial loading amount; and finding out a starting point of an elastic stage in the test process according to the displacement change value, and evaluating the bearing capacity of the steel truss pedestrian overpass by using a check coefficient change value of a bridge effect change value caused bythe loading amount in the unloading elastic stage. The bridge effect change value comprises a strain change value and a displacement change value. According to the method, the structural characteristics of the steel truss pedestrian overpass are fully considered; according to the method, the bearing capacity of the steel truss pedestrian overpass can be evaluated more effectively and objectively,misjudgment is reduced, the