重庆交通大学学报(自然科学版) ›› 2001, Vol. 20 ›› Issue (3): 23-27.
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罗娜1,胡大琳1,任少强2
出版日期:
发布日期:
LUO Na 1,HU Da lin 1,REN Shao qiang 2
Online:
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摘要: 通过模型测试手段,进行模型破坏性试验 .实测模型在各级荷载作用下的一、二阶固有频率,反推出拱桥的抗拉 (压 )刚度和抗弯刚度 .用反推刚度作为计算刚度检算拱桥内力、变形,并与设计理论结果、静力测试结果进行比较 .结果表明,动测法检算拱桥承载力快速、省时、省力 .
关键词: 动载试验, 拱桥, 承载力
Abstract: By the means of experimental model,a failure test was carried out to the model. From the obtained first and second order nature frequencies of the model under each class of loading,tension(compression) resisting stiffness and anti flexure stiffness were induced adversely and can be used as computational stiffness to calibrate arch bridges internal forces and deformations, with which a comparison can be made to the results of theoretical design and static test.The comparison shows that the dynamic method has the advantages of timesaving and convenience
Key words: dynamic load test, arch bridge, load bearing capacity
中图分类号:
U441
罗娜,胡大琳,任少强. 动测法评定钢筋砼拱桥承载力初探[J]. 重庆交通大学学报(自然科学版), 2001, 20(3): 23-27.
LUO Na 1,HU Da lin 1,REN Shao qiang 2. Evaluation for load bearing capacity of R C arch bridge with dynamic method[J]. Journal of Chongqing Jiaotong University(Natural Science), 2001, 20(3): 23-27.
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