[1]祝明桥,颜泽峰,陈 林,等.面向双层交通的混凝土箱梁桥弹性试验研究[J].西安建筑科技大学学报(自然科学版),2019,51(02):198-0205.[doi:10.15986/j.1006-7930.2019.02.007]
　ZHU Mingqiao,YAN Zefeng,CHEN Lin,et al.Experimental study of the elastic behavior of a novel RC box girder[J].J. Xi’an Univ. of Arch. & Tech.(Natural Science Edition),2019,51(02):198-0205.[doi:10.15986/j.1006-7930.2019.02.007]
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面向双层交通的混凝土箱梁桥弹性试验研究()
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西安建筑科技大学学报（自然科学版）[ISSN:1006-7930/CN:61-1295/TU]

卷:
51
期数:
2019年02期
页码:
198-0205
栏目:
出版日期:
2019-04-28

文章信息/Info

Title:
Experimental study of the elastic behavior of a novel RC box girder
文章编号:
1006-7930(2019)02-0198-08
作者:
祝明桥; 颜泽峰; 陈 林; 刘 涛
湖南科技大学 土木工程学院
Author(s):
ZHU Mingqiao; YAN Zefeng ;  CHEN Lin ;  LIU Tao
(School of Civil Engineering, Hunan University of Science and Technology, Hunan Xiangtan 411100,China)
关键词:
桥梁; 箱形梁; 双层交通; 钢筋混凝土; 实验
Keywords:
Bridges;  Box girder;  Double-deck traffic;  Reinforced concrete;  Experiment
分类号:
TU411
DOI:
10.15986/j.1006-7930.2019.02.007
文献标志码:
A
摘要:
为适应当前公路、铁路运输量的急剧增长，本文设计出一种面向双层交通的钢筋混凝土箱梁桥。该桥梁取消了箱梁内部横隔板，同时利用箱梁顶板和底板作为桥面系，从而实现双层交通。本文对该箱梁缩尺模型（1:6）进行了多工况的拟静力加载试验，对其弹性工作性能进行了初步研究。结果表明：1）腹板孔洞对箱梁整体及局部变形均有影响；2）箱梁内横向加劲肋的刚度较弱；3）上、下加载时箱梁顶底板剪力滞效应区别明显。因此，今后对该类箱梁进行结构设计时需要重点考虑腹板孔洞、横向加劲肋以及上下加载情况的影响。
Abstract:
In order to adapt to the rapid growth of the highway and railway traffic, a novel reinforced concrete (RC) box girder oriented to double-deck traffic bridges was preliminarily designed. The internal diaphragm of the box girder was eliminated so as to achieve the double-deck traffic function. In this paper, a scaled model (1:6) of the box girder was tested with various loading conditions, and the static elastic properties were studied. The results show that: (1) the web holes have significant influences on both the global and local deformation of the box girder; (2) the stiffness of the transverse stiffener for the tested girder is not large enough; (3) The shear-lag effect of the box girder with loads applied on the top plate is quite different from that on the bottom plate. Therefore, the influences of the web holes, transverse stiffeners and loading positions should be taken into special consideration in designing such kind of a box girder

参考文献/References:

References
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备注/Memo

备注/Memo:
收稿日期：2018-10-01  修改稿日期：2018-03-22
基金项目：国家自然科学基金项目（51578236，51608191）
第一作者：祝明桥（1968-），男，教授，博士，主要从事混凝土结构理论及新材料应用研究。E-mail：1531290279@qq.com
更新日期/Last Update: 2019-05-23