Study of super-wide slab arch bridge by three deminsion body

Journal of Chongqing Jiaotong University(Natural Science) ›› 2006, Vol. 25 ›› Issue (增刊1): 1-3.

Study of super-wide slab arch bridge by three deminsion body

ZHANG Zeng-ya ¹，ZENG De-rong ²，WANG Lei²

1.Panzhihua Jiaotong Design Instiuit，Panzhihua 617000，China； 2.School of Civil Engineering＆Architecture，Chongqing Jiaotong University，Chongqing 400074，China

Received:2006-06-07 Revised:2015-05-18 Online:2006-07-15 Published:2015-05-18

宽体板拱桥空间受力分析

张增亚¹，曾德荣²，王雷²

1.攀枝花市交通设计研究院，四川攀枝花 617000；2.重庆交通大学土木建筑学院，重庆 400074

作者简介:张增亚(1972—)，男，河北晋州人，工程师，从事桥梁结构设计、计算、施工控制研究．

Abstract

Abstract: When the width is very close to or much greater than the span of slab arch bridge．it is called Super-wide Slab Arch Bridge．Its problems according to beam theory are presemed and a space FEM model is estabhshed by MIDAS／Civil software．The influence surface and live load application are computed with MIDAS software according to{road and bridge design general standard(JTG D60-2004)>，and the computing result is compared with that of simplified model of FEM plane frame．Its conclusion maybe become the basis of design and disease anlysis of Super-wide Slab Arch Bridge．

Key words: super-wide bridge, slab arch bridge, spatial analysis, FEM

摘要： 当板拱桥的宽度与跨度接近，甚至其宽度大于跨度，这类板拱桥称为宽体板拱桥．这类桥梁现有的杆系结构设计理论存在问题．按《公路桥涵设计通用规范(JTGD60-2004)》，以实腹式宽体板拱桥为例，利用MIDAS／Civil建立空间有限元分析模型，进行影响面计算，分析了应力最不利位置以及其值的加载计算，将计算结果与平面杆系有限元简化分析模型的计算结果进行比较．指出二者分析结果的相同的和不同的方面，为该类桥梁的设计、病害分析提供理论基础．

关键词: 宽桥, 板拱桥, 空间受力分析, 有限元

CLC Number:

TU455

ZHANG Zeng-ya，ZENG De-rong，WANG Lei. Study of super-wide slab arch bridge by three deminsion body[J]. Journal of Chongqing Jiaotong University(Natural Science), 2006, 25(增刊1): 1-3.

张增亚，曾德荣，王雷. 宽体板拱桥空间受力分析[J]. 重庆交通大学学报（自然科学版）, 2006, 25(增刊1): 1-3.

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