Journal of Jilin University(Engineering and Technology Edition) ›› 2023, Vol. 53 ›› Issue (10): 2869-2878.doi: 10.13229/j.cnki.jdxbgxb.20211370

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Transverse mechanical properties of assembled T beam bridge after main girder damage

Chun-liang LI1(),Lei HOU1,Luo-luo ZHAO1,Xiang LIU2,Hong-jun ZHANG3(),Yun-long ZHANG1   

  1. 1.School of Communication Science and Engineering，Jilin Jianzhu University，Changchun 130118，China
    2.The First Construction Co. ，Ltd. of CSCEC 7th Division，Beijing 100162，China
    3.Zhongqing Construction Co. ，Ltd. ，Changchun 130062，China
  • Received:2021-12-15 Online:2023-10-01 Published:2023-12-13
  • Contact: Hong-jun ZHANG E-mail:lichli3300@163.com;550673296@qq.com

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Abstract:

In order to study the variation law of the transverse distribution coefficient of the assembled T beam bridge after any girder damage， based on the rigid-jointed beam method， a transverse mechanical model is established， which is suitable for the different positions and the numbers of girder damage. And the change degree of the transverse distribution coefficient is analyzed with the model. The results show that a transverse unloading occurs after the girder damage. And the larger the girder damage degree is or the more the damaged girders are，the larger the reduction rate of the transverse distribution coefficient of the damaged girder is， while the larger the increasing rate of the transverse distribution coefficient of the intact girder is. And the increasing rate is inversely proportional to the cross range to the damaged girder. In addition， when it is rigid connection between the girders， the transverse unloading capacity and the influence area of the damaged girder are larger than hinged connection between the girders. If the damaged girder is not reinforced in time， the intact girder will be damaged in the order of the closer to the damaged one， the earlier the damage occurs.

Key words: bridge engineering, assembled T beam, main girder damage, transverse distribution coefficients, rigid-connected beam

CLC Number: 

  • U443.3

Fig.1

Force diagram between beams"

Fig.2

Deformation of beams under shear force"

Fig.3

Deformation of beams under moment"

Fig.4

Force diagram between beams when load acts on1# or n# beam"

Fig.5

Force diagram between beams when load acts on s# beam"

Fig.6

Cross section of rigid-connected beam"

Fig.7

Transverse influence lines of pre- and post- 1#beam damage"

Fig.8

Transverse influence lines of pre- and post-2# beam damage"

Fig.9

Transverse influence lines of pre- and post-3# beam damage"

Fig.10

Transverse influence lines of beams of pre- and post-1# beam damage"

Fig.11

Transverse influence lines of beams of pre- and post-3# beam damage"

Fig.12

Transverse distribution coefficients of beams of pre- and post-1# and 2# beams damage"

Fig.13

Transverse distribution coefficients of beams of pre- and post-2# and 3# beams damage"

Fig.14

Transverse distribution coefficients of beams of pre- and post-1# and 3# beams damage"

Fig.15

Transverse distribution coefficients of beams with 1# beam different damages"

Fig.16

Transverse distribution coefficients of beams with 2# beam different damages"

Fig.17

Transverse distribution coefficients of beams with 3# beam different damages"

Fig.18

Transverse distribution coefficients of beamsof pre- and post-1#，2# and 3# beamsseparate damage"

1 Yousif Zaher, Hindi Riyadh. AASHTO-LRFD live load distribution for beam-and-slab bridges: limitations and applicability[J]. Journal of Bridge Engineering, 2007, 12(6):765-773.
2 Song Shin-tai, Chai Y H, Hida Susan E. Live-load distribution factors for concrete box-girder bridges[J]. Journal of Bridge Engineering, 2003, 8(5):273-280.
3 Barr Paul J, Eberhard Marc O, Stanton John F. Live-load distribution factors in prestressed concrete girder bridges[J]. Journal of Bridge Engineering, 2001,6(5):298-306.
4 Mabsout Mounir E, Tarhini Kassim M, Frederick Gerald R, et al. Finite element analysis of steel girder highway bridges[J].Journal of Bridge Engineering, 1997, 2(3): 83-87.
5 Kim Woo Seok, Laman Jeffrey A, Linzell Daniel G. Live load radial moment distribution for horizontally curved bridges[J]. Journal of Bridge Engineering, 2007, 12(6): 727-736.
6 Khaloo Ali R, Mirzabozorg H. Load distribution factors in simply supported skew bridges[J]. Journal of Bridge Engineering, 2003,8(4): 241-244.
7 EN 1992-1-1. Eurocode 2: design for concrete structures-part 1-1: general rules and rules for buildings [S].
8 王渠,吴庆雄,陈康明,等.拼宽空心板桥荷载横向分布计算方法[J]. 中国公路学报,2019,32(7):57-65.
Wang Qu, Wu Qing-xiong, Chen Kang-ming, et al. Calculation method of load transverse distribution for widening hollow slab bridge[J]. China Journal of Highway and Transport, 2019, 32(7): 57-65.
9 Eom J.Verification of lateral live load distribution factors for continuous steel girder bridges based on diagnostic testing results[J]. Journal of the Korea Institute for Structural Maintenance and Inspection,2009, 13 (4):180-187.
10 Fausett Robert W. Live-load test and finite-element model analysis of an integral abutment concrete girder Bridge[D]. Logan: Utah State University,2013.
11 Zhang Shu-hai. Simplified live load distribution factor equations for tennessee highway bridge design[D]. Cookeville: Tennessee Technological University, 2012.
12 邬晓光,钱若霖,苏佩. 考虑刚度损伤的装配式T梁桥横向分布计算[J]. 公路交通科技, 2018, 35(6): 61-66.
Wu Xiao-guang, Qian Ruo-lin, Su Pei. Calculation of transverse distribution of assembled T beam bridge considering stiffness damage[J]. Journal of Highway and Transportation Research and Development,2018, 35(6): 61-66.
13 邬晓光,黄成,李院军,等. 考虑旧桥损伤的拼宽T梁桥荷载横向分布计算[J].铁道科学与工程学报,2019,16(9):2233-2239.
Wu Xiao-guang, Huang-Cheng, Li Yuan-jun, et al. Calculation of load transverse distribution of widening T-beam bridge considering old bridge damage[J]. Journal of Railway Science and Engineering,2019, 16(9): 2233-2239.
14 彭旺虎,李院军,刘嘉欣. 基于静力模型修正的装配式T梁桥荷载横向分布计算[J]. 公路交通科技,2021,38(4):45-54.
Peng Wang-hu, Li Yuan-jun, Liu Jia-xin. Calculation of transverse load distribution of prefabricated T beam bridge based on static model updating[J]. Journal of Highway and Transportation Research and Development,2021,38(4): 45-54.
15 李院军,邬晓光,黄成,等. 考虑主梁损伤的装配式梁桥荷载横向分布系数计算[J]. 铁道科学与工程学报, 2019,16(6):1459-1465.
Li Yuan-jun, Wu Xiao-guang, Huang Cheng, et al. Calculation of transverse load distribution coefficient of assembled girder bridge considering main girder damage[J]. Journal of Railway Science and Engineering, 2019, 16(6): 1459-1465.
16 钱若霖,苏佩,杨谦. 基于损伤分析的空心板桥荷载横向分布系数研究[J].公路与汽运, 2021, 202(1):118-120, 125.
Qian Ruo-lin, Su Pei, Yang Qian. Study on the transverse distribution coefficient of hollow slab bridge load based on damage analysis[J]. Highways & Automotive Applications,2021, 202(1):118-120, 125.
17 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.
Li Chun-liang, Lin Zhi-hao, Zhao Luo-luo. Effect of damaged hinge joint and damaged slab on transverse force of hollow slab bridge[J]. Journal of University(Engineering and Technology Edition),2021, 51(2): 611-619.
18 刘晓春,卫军,李沛,等. 一种基于相对位移的铰缝传力性能评估方法[J]. 中南大学学报:自然科学版,2013,44(8): 3377-3383.
Liu Xiao-chun, Wei Jun, Li Pei, et al. Load-transmitting performance evaluation method for hinge joint based on relative displacement[J]. Journal of Central South University (Science and Technology), 2013, 44(8): 3377-3383.
19 魏保立,邓苗毅. 损伤桥梁的荷载横向分布计算方法研究[J]. 河南理工大学学报:自然科学版,2015,34(1):102-108.
Wei Bao-li, Deng Miao-yi. Computional method analysis for transverse load distribution of damage bridge[J]. Journal of Henan Polytechnic University(Natural Science),2015,34(1):102-108.
20 李国豪,石洞.公路桥梁荷载横向分布系数[M].北京:人民交通出版社,1984.
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