铰缝及板损伤后对空心板桥横向受力的影响

doi:10.13229/j.cnki.jdxbgxb20191193

摘要/Abstract

摘要：

为研究空心板桥在铰缝及板受损后的横向受力状况，基于铰接板理论，建立了空心板桥铰缝及板受损后的解析模型，揭示了铰缝及板损伤后对桥梁整体横向受力的影响程度。结果表明：铰缝损伤会降低空心板横向传递荷载的能力，损伤程度越大，各板分配到的最大荷载越大，且距离受损铰缝越近的板受到的影响越大；当铰缝与板同时损伤时会导致周围完好板承担的荷载增加，越易出现损伤。

关键词: 桥梁与隧道工程, 空心板桥, 横向受力, 铰缝损伤, 板梁损伤

Abstract:

In order to research the transverse force of hollow slab bridge when the hinge joint and the slab are damaged， first， an analytical model of the damaged hollow slab bridge is established based on the articulated slab girder theory. Then， the influence of the damage of hinge joint and slab on the transverse force of the bridge is investigated. The results show that the damaged hinge joint can reduce the capacity of the transverse loading transferring. Moreover， the severe is the damage， the greater the maximum load is distributed to each slab， and the closer to the damaged hinge joint， the greater the impact on the slab. The load on the surrounding intact slabs will increase when the hinge joints and the slabs are damaged at the same time， and new damages are easy to occur to the intact slabs.

Key words: bridge and tunnel engineering, hollow slab bridge, transverse force, damaged hinge joint, damaged slab

中图分类号:

U445.7

李春良,林志豪,赵珞珞. 铰缝及板损伤后对空心板桥横向受力的影响[J]. 吉林大学学报(工学版), 2021, 51(2): 611-619.

Chun-liang LI,Zhi-hao LIN,Luo-luo ZHAO. Effect of damaged hinge joint and damaged slab on transverse force of hollow slab bridge[J]. Journal of Jilin University(Engineering and Technology Edition), 2021, 51(2): 611-619.

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