Journal of Jilin University(Engineering and Technology Edition) ›› 2021, Vol. 51 ›› Issue (2): 611-619.doi: 10.13229/j.cnki.jdxbgxb20191193

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Effect of damaged hinge joint and damaged slab on transverse force of hollow slab bridge

Chun-liang LI(),Zhi-hao LIN,Luo-luo ZHAO   

  1. School of Communication Science and Engineering，Jilin Jianzhu University，Changchun 130118，China
  • Received:2020-01-02 Online:2021-03-01 Published:2021-02-09

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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

CLC Number: 

  • U445.7

Fig.1

Shear between slabs"

Fig.2

Calculation scheme of displacement between adjacent plates after hinge joints are damaged"

Fig.4

Cross section of hollow slab bridge"

Fig.4

Transverse influence line of No.3 slab before and after No.3 hinge joint damage"

Fig.5

Diagram of No.4 hinge joint damage"

Fig.6

Transverse influence line of No.4 slab before and after No.4 hinge joint damage"

Fig.7

Transverse influence line of No.1 and No.4 slab before and after No.4 hinge joint damage"

Fig.8

Diagram of multiple hinge joint damage"

Fig.9

Transverse influence line of No.2 slab before and after multiple hinge joint damage"

Fig.10

Transverse influence line of No.8 slab before and after multiple hinge joint damage"

Fig.11

Transverse influence line of No.5 slab before and after multiple hinge joint damage"

Fig.12

Diagram of hinge joint and slab damage"

Fig.13

Transverse influence line of No.4 slab before and after hinge joint and slab damage"

Fig.14

Transverse influence line of No.3 slab before and after hinge joint and slab damage"

Fig.15

Transverse influence line of No.5 slab before and after hinge joint and slab damage"

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