吉林大学学报(工学版) ›› 2020, Vol. 50 ›› Issue (5): 1728-1738.doi: 10.13229/j.cnki.jdxbgxb20190674

• 交通运输工程·土木工程 • 上一篇    

装配式箱涵结构缩尺模型静载试验及有限元分析

宫亚峰1(),宋加祥1,毕海鹏1,谭国金1(),胡国海2,林思远1   

  1. 1.吉林大学 交通学院, 长春 130022
    2.吉林省交通规划设计院, 长春 130022
  • 收稿日期:2019-07-02 出版日期:2020-09-01 发布日期:2020-09-16
  • 通讯作者: 谭国金 E-mail:gongyf@jlu.edu.cn;tgj@jlu.edu.cn
  • 作者简介:宫亚峰(1977-),男,教授,博士.研究方向:桥梁结构健康监测理论及应用.E-mail:gongyf@jlu.edu.cn
  • 基金资助:
    国家自然科学基金项目(51978309);吉林省交通运输科技项目(2018ZDGC-16);吉林省科技发展计划项目(20190303052SF);吉林省产业技术研究与开发专项项目(2019C041-5);吉林省教育厅“十三五”科学技术项目(JJKH20190150KJ);吉林大学优秀青年教师培育计划(精英阶段)项目;中央高校基本科研业务费专项资助项目

Static test and finite element analysis of scale model of fabricated box culvert

Ya-feng GONG1(),Jia-xiang SONG1,Hai-peng BI1,Guo-jin TAN1(),Guo-hai HU2,Si-yuan LIN1   

  1. 1.College of Transportation, Jilin University, Changchun 130022, China
    2.Jilin Traffic Planning and Design Institute, Changchun 130022, China
  • Received:2019-07-02 Online:2020-09-01 Published:2020-09-16
  • Contact: Guo-jin TAN E-mail:gongyf@jlu.edu.cn;tgj@jlu.edu.cn

摘要:

为了给装配式涵洞的优化设计提供基础数据和技术支撑,以实体工程为依托,借助室内试验与有限元分析,对整体式、平缝式、圆铰式和榫接式4类涵洞结构的力学性能进行了对比分析。首先,依据相似理论制作了4类涵洞结构的缩尺模型,对其在全加载过程中的静力响应进行了测试。其次,采用有限元方法对具有代表性的整体式和圆铰式箱涵结构的力学性能进行了数值仿真分析。最后,依据测试数据和数值仿真分析,对4类箱涵结构的力学性能进行了全方位的剖析与对比,给出了一些有益建议。研究结果表明:4类构件的失效模式均是上顶板底部混凝土受拉开裂后产生弯曲破坏,但铰缝的设置显著改变了箱涵结构的受力状态,侧墙受力状态的改变尤为明显;承载能力与开裂荷载的规律类似,均为整体式箱涵结构最大,圆铰式箱涵结构最小。

关键词: 桥梁工程, 装配式箱涵, 缩尺模型, 静载试验, 有限元分析

Abstract:

In order to provide basic data and technical support for the optimal design of prefabricated culvert, the mechanical properties of four types of culvert structures, namely, integral, flat-joint, circular hinge and tenon, are compared and analyzed by means of laboratory test and finite element analysis based on physical engineering. Firstly, the scale models of four kinds of culvert structures are constructed according to the similarity theory, and the static responses of these models in the full loading process are tested. Secondly, the mechanical properties of typical integral and circular hinged box cults are studied by finite element simulation. Finally, based on the test data and numerical simulation results, the mechanical properties of the four types of box culvert structures are analyzed and compared comprehensively, and some useful suggestions are given. The research results show that the failure modes of all four types of components are bending failure of the concrete at the bottom of the upper roof after cracking, but the setting of hinge joints significantly changes the stress state of the box culvert structure, especially the stress state of the side wall. The bearing capacity is similar to that of cracking load, that the integral box culvert structure has the maximal bearing capacity and circular hinged box culvert structure has the the minimal capacity.

Key words: bridge engineering, prefabricated culvert, scale model, static load test, finite element analysis

中图分类号: 

  • U449.1

图1

装配式箱涵结构尺寸图"

表1

缩尺模型一览表"

序号结构尺寸有、无铰缝构造图示结构型式
1

跨径:116cm

墙高:97.5 cm

涵长:25 cm

平缝式
2圆铰式
3-整体式
4榫接式

图2

装配式箱涵结构设计图"

图3

试验加载示意图"

图4

测点布置图"

图5

整体式构件侧墙的破坏形态"

表2

试验结果表"

结构类型开裂荷载极限荷载

荷载

/kN

上顶板

起裂位置

荷载

/kN

上顶板跨中 挠度/mm
平缝式17.30.32L26.412.41
圆铰式9.20.48L22.019.21
整体式20.00.38L32.07.21
榫接式14.00.36L23.09.04

图6

4类箱涵结构上顶板跨中挠度-荷载曲线"

图7

各类模型侧墙的位移分布规律"

图8

各类箱涵结构上顶板跨中截面应变分布"

图9

整体式箱涵结构有限元模型"

图10

圆铰式箱涵结构有限元模型"

图11

圆铰式箱涵上顶板跨中挠度-荷载曲线"

图12

整体式箱涵上顶板跨中挠度-荷载曲线"

图13

装配式箱涵结构钢筋在X方向的轴力图"

图14

装配式箱涵结构钢筋在Y方向的轴力图"

图15

混凝土第一主应力云图"

1 胡可, 杨晓光, 陈发根, 等. 公路装配式钢筋混凝土通道[M]. 北京: 人民交通出版社, 2018.
2 马骞. 朔黄线K549+014涵洞病害原因分析与加固技术[J].铁道建筑, 2017(1): 84-86, 102.
Ma Qian. Disease cause analysis and reinforcement technology for culvert at section K549+014 on Shuozhou-Huanghuagang railway[J]. Railway Engineering, 2017(1): 84-86, 102.
3 Kim K, Yoo C H. Design loading on deeply buried box culverts[J]. Journal of Geotechnical and Geoenvironmental Engineering, 2005, 131(1): 20-27.
4 Bennett R M, Wood S M, Drumm E C, et al. Vertical loads on concrete box culverts under high embankments[J]. Journal of Bridge Engineering, 2005, 10(6): 643-649.
5 李永刚, 李力. 钢筋混凝土涵洞顶部垂直土压力影响因素研究[J]. 长江科学院院报, 2006, 23(6): 72-74, 79.
Li Yong-gang, Li Li. Analysis on influence factors of vertical earth pressure on reinforced concrete culverts[J]. Journal of Yangtze River Scientific Research Institute, 2006, 23(6): 72-74, 79.
6 宫亚峰, 王博, 谭国金, 等. 吉林省两种典型装配式箱涵受力特性对比分析[J]. 吉林大学学报: 工学版, 2019, 49(6): 1865-1870.
Gong Ya-feng, Wang Bo, Tan Guo-jin, et al. Comparative analysis of mechanical characteristics of two typical fabricated culverts in Jilin[J]. Journal of Jilin University(Engineering and Technology Edition), 2019, 49(6): 1865-1870.
7 范鹤, 刘斌, 范泽, 等. 高填土涵洞相似材料模型试验与数值模拟[J]. 吉林大学学报: 工学版, 2008, 38(2): 399-403.
Fan He, Liu Bin, Fan Ze, et al. Model test with similar material and numerical simulation of culvert with high fills[J]. Journal of Jilin University(Engineering Editi-on), 2008, 38(2): 399-403.
8 陈保国, 骆瑞萍, 孙金山. 上埋式盖板涵受力特性及影响因素研究[J]. 岩土力学, 2011, 32(1): 199-206.
Chen Bao-guo, Luo Rui-ping, Sun Jin-shan. Study of stress characteristics and its influencing factors of embankment installation slab-culverts[J]. Rock and Soil Mechanics, 2011, 32(1): 199-206.
9 Garg A K, Abolmaali A. Finite-element modeling and analysis of reinforced concrete box culverts[J]. Journal of Transportation Engineering, 2009, 135(3): 121-128.
10 Moradi M, Valipour H, Foster S. Reserve of strength in inverted U-shaped RC culverts: effect of backfill on ultimate load capacity and fatigue life[J]. Journal of Bridge Engineering, 2016, 21(2): 1-10.
11 Abolmaali A, Garg A K. Effect of wheel live load on shear behavior of precast reinforced concrete box culverts[J]. Journal of Bridge Engineering, 2008, 13(1): 93-99.
12 李兆平, 苏会锋, 吕书清, 等. 装配式地铁车站结构双榫槽式接头抗弯力学性能试验研究[J]. 土木工程学报, 2017, 50(2): 28-32.
Li Zhao-ping, Su Hui-feng, Shu-qing Lyu, et al. Experimental study on flexural mechanical properties of the double tenon groove joints of prefabricated subway station[J]. China Civil Engineering Journal, 2017, 50(2): 28-32.
13 王立超, 李建光. 基于单桩抗压静载实验的桩筏基础协同分析数值模拟研究[J]. 工程建设, 2019, 51(1): 26-31.
Wang Li-chao, Li Jian-guang. Study on numerical simulation analysis of settlement under synergistic effect of pile-raft foundation based on static loading test of single pile[J]. Engineering Construction, 2019, 51(1): 26-31.
14 刘丽丽, 李刘峰. 装配式预制箱涵受力及稳定性分析[J]. 福建交通科技, 2019(3): 96-99.
Liu Li-li, li Liu-feng, Stress and stability analysis of prefabricated precast box culms[J]. Fujian Traffic Science and Technology, 2019(3): 96-99.
15 李勇, 赵晓莎, 陈彦江, 等. 钢管混凝土拱桥缩尺模型静动力试验研究[J]. 公路, 2019, 64(3): 99-106.
Li Yong, Zhao Xiao-sha, Chen Yan-jiang, al at. Static and dynamic test research of shrinkage model of concrete-filled steel tube arch bridge[J]. Highway, 2019, 64(3): 99-106.
16 颜良. 无腋角综合管廊结构足尺模型静载试验及有限元分析[D]. 长沙: 湖南大学土木工程学院, 2018.
Yan Liang. Static test and finite element analysis of full-scale model of utility tunnel structure without axillary angle[D]. Changsha: School of Architecture and Construction, Hunan University, 2018.
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