|Table of Contents|

Mechanical Property and Deformation Law of Integral Structure of Oblique Special-shaped Box Culvert(PDF)

《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

Issue:
2020年02期
Page:
91-99
Research Field:
Publishing date:

Info

Title:
Mechanical Property and Deformation Law of Integral Structure of Oblique Special-shaped Box Culvert
Author(s):
ZHANG Hai;  CAI Yu-Jun
(China Railway First Survey and Design Institute Group Co., Ltd.,Xi'an 710043, Shaanxi, China)
Keywords:
oblique special-shaped box culvert;  mechanical property;  deformation law;  numerical simulation;  design method
PACS:
TU311
DOI:
10.19815/j.jace.2019.07061
Abstract:
In order to study the mechanical property and deformation law of the integral structure of oblique special-shaped box culvert, aiming at the underground long-span oblique special-shaped box culvert channel of Xi'an Railway Station Reconstruction Project, a three-dimensional refined finite element model of the box culvert structure was established by using the finite element analysis software ABAQUS, focusing on the mechanical property of the integral structure of the box culvert in normal state and the final failure mode in ultimate state. The stress distribution, crack development and maximum deformation of each component of the box culvert were analyzed. The reliability of the whole model was analyzed, and the relevant design suggestions of the box culvert were proposed. The results show that the deformation of the integral structure of box culvert mainly comes from the bending deformation of the roof and bottom plate and the shear deformation of the side plate. The cracks are mainly concentrated at the bottom of the roof and the corner of the slab wall. The maximum deformation of each member of box culvert and the maximum stress of reinforcement and concrete under normal state are far less than the limit value of code, which meet the design requirements. The stress concentration of box culvert is easy to occur at the opening position, the corner of slab wall and the obtuse angle of skew section, so the structural measures should be strengthened at the corresponding position. When the ratio of the longitudinal length of the inclined crack along the box culvert to the span of the box culvert at the deformation joint K≥0.77, the oblique intersection theory is recommended, and when K<0.77, the orthogonal calculation theory is recommended, but the reinforcing steel bars should be added at the oblique deformation joint to strengthen. K has certain reference value for similar projects such as three holes, slab wall opening, skew intersection.

References:

[1] 熊启钧.涵洞[M].北京:中国水利水电出版社,2006.
XIONG Qi-jun.Culvert[M].Beijing:China Water & Power Press,2006.
[2]高秀华.结构力学与有限单元法原理[M].长春:吉林科学技术工业出版社,1995.
GAO Xiu-hua.Principles of Structural Mechanics and Finite Element Method[M].Changchun:Jilin Science and Technology Industry Press,1995.
[3]刘蒙娜.地下箱涵有限元结构分析[D].郑州:郑州大学,2014.
LIU Meng-na.Finite Element Analysis of Underground Box Culvert Structure[D].Zhengzhou:Zhengzhou University,2014.
[4]ABDEL-KARIM A M,TADROS M K,BENAK J V.Structural Response of Full-scale Concrete Box Culvert[J].Journal of Structural Engineering,1993,119(11):3238-3254.
[5]KIM K,YOO C H.Design Loading on Deeply Buried Box Culverts[J].Journal of Geotechnical and Geoenvironmental Engineering,2005,131(1):20-27.
[6]范军琳.大斜交角度铁路框架桥结构受力分析[J].铁道建筑技术,2010(10):19-22.
FAN Jun-lin.Structure Stress Analysis of Railway Frame Bridge with a Large Oblique Crossing Angle[J].Railway Construction Technology,2010(10):19-22.
[7]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.
[8]毕继红,瞿慎俊,逯 鹏,等.反复荷载作用下钢筋混凝土箱涵的数值模拟[J].地震工程与工程振动,2014,34(5):150-156.
BI Ji-hong,QU Shen-jun,LU Peng,et al.Numerical Simulation of Reinforced Concrete Box Culverts Subjected to Low-cyclic Reversed Loads[J].Earthquake Engineering and Engineering Dynamics,2014,34(5):150-156.
[9]禹国辉,朱尔玉,李学民.斜交框架箱涵结构在钝角处的受力和配筋特点[J].北京交通大学学报,2013,37(1):124-127.
YU Guo-hui,ZHU Er-yu,LI Xue-min.Mechanical and Reinforcement Characteristics on Obtuse Angle of Oblique Frame Culvert Box Structure[J].Journal of Beijing Jiaotong University,2013,37(1):124-127.
[10]张伟立.箱涵端部斜交段的内力计算与结构设计[J].结构工程师,2016,32(4):29-34.
ZHANG Wei-li.Research of Internal Force Calculation and Structure Design of Oblique Section of Culvert Box at End Region[J].Structural Engineers,2016,32(4):29-34.
[11]潘文怡.斜交框架地道桥的设计探讨[J].铁道标准设计,2009(6):79-81.
PAN Wen-yi.Discussion on Design of Skew Frame Underpass Bridge[J].Railway Standard Design,2009(6):79-81.
[12]OLIVER J,OLLER S,ONATE E.A Plastic-damage Model for Concrete[J].International Journal of Solids and Structures,1989,25(3):299-326.
[13]LEE J,FENVES G L.Plastic-damage Model for Cyclic Loading of Concrete Structures[J].Journal of Engineering Mechanics,1998,124(8):892-900.
[14]聂建国,王宇航.ABAQUS中混凝土本构模型用于模拟结构静力行为的比较研究[J].工程力学,2013,30(4):59-67,82.
NIE Jian-guo,WANG Yu-hang.Comparison Study of Constitutive Model of Concrete in ABAQUS for Static Analysis of Structures[J].Engineering Mechanics,2013,30(4):59-67,82.
[15]WANG J Y.Nonlinear Behavior of Semi-rigid Composite Joints Under Lateral Loading — Experiment and Theoretical Study[D].Hong Kong:The Hong Kong Polytechnic University,1999.
[16]过镇海,张秀琴,张达成,等.混凝土应力-应变全曲线的试验研究[J].建筑结构学报,1982,3(1):1-12.
GUO Zhen-hai,ZHANG Xiu-qin,ZHANG Da-cheng,et al.Experimental Investigation of the Complete Stress-strain Curve of Concrete[J].Journal of Building Structures,1982,3(1):1-12.
[17]HILLERBORG A,MODEER M,PETERSSON P E.Analysis of Crack Formation and Crack Growth in Concrete by Means of Fracture Mechanics and Finite Elements[J].Cement and Concrete Research,1976,6(6):773-781.
[18]GB 50010—2010,混凝土结构设计规范[S].
GB 50010—2010,Code for Design of Concrete Structures[S].
[19]王灵仙,崔锡虎,王新玲.基于ABAQUS的某地下综合管廊主体结构受力性能分析[J].结构工程师,2017,33(5):28-35.
WANG Ling-xian,CUI Xi-hu,WANG Xin-ling.Mechanical Property Analysis for the Main Structure of a Utility Tunnel Using ABAQUS[J].Structural Engineers,2017,33(5):28-35.
[20]AHMED A O M,ALARABI E H.Development Formulation for Structural Design of Concrete Box Culverts[J].Practice Periodical on Structural Design and Construction,2011,16(2):48-55.

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Last Update: 2020-04-21