[1]常玉珍,龙彦鹏,牛泽林,等.球面组合肋壳力学性能研究[J].西安建筑科技大学学报(自然科学版),2018,50(03):346-0354.[doi:10.15986/j.1006-7930.2018.03.006]
　CHANG Yuzhen,LONG Yanpeng,NIU Zelin,et al.Study on the mechanical behavior of spherical composite ribbed shell[J].J. Xi’an Univ. of Arch. & Tech.(Natural Science Edition),2018,50(03):346-0354.[doi:10.15986/j.1006-7930.2018.03.006]
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球面组合肋壳力学性能研究()
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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:
50
期数:
2018年03期
页码:
346-0354
栏目:
出版日期:
2018-06-30

文章信息/Info

Title:
Study on the mechanical behavior of spherical composite ribbed shell
文章编号:
1006-7930(2018)03-0346-08
作者:
常玉珍1; 龙彦鹏1; 牛泽林1; 冯婷1; 2; 程迪炎1; 矫璐超1
(1.西安建筑科技大学 土木工程学院，陕西 西安710055；2. 洛阳腾飞市政工程有限公司， 河南 洛阳 471000）
Author(s):
CHANG Yuzhen1;  LONG Yanpeng1;  NIU Zelin1;  FENG Ting1; 2;  CHENG Diyan1;  JIAO Luchao1
(1. School of Civil Engineering, Xi′an Univ. of Arch. & Tech., Xi′an 710055, China; 2. Luoyang Tecfure Municipal Enginerring Co., LTD., Luoyang 471000, China)
关键词:
球面组合肋壳; 试验研究; 极限承载力; 强度破坏; 破坏机理
Keywords:
spherical composite ribbed shell;  experimental study;  ultimate bearing capacity;  strength failure;  failure mechanism
分类号:
TU373
DOI:
10.15986/j.1006-7930.2018.03.006
文献标志码:
A
摘要:
组合肋壳是由组合肋与钢筋混凝土薄壳共同组成的一种新型大跨度空间组合壳体结构，为研究静力荷载下整体结构静力响应、破坏过程与失效机理，进行1∶10球面组合肋壳静力加载试验．通过跟踪整个加载过程，得到组合肋壳裂缝发展、结构最终破坏形态和最大变形点荷载位移曲线等静力性能指标，分析结构内力传递路径、承载能力及破坏机理．研究表明：组合肋壳具有较高的承载能力，良好抗倒塌能力；组合肋主要承受轴向力，钢筋混凝土薄壳以薄膜内力为主，在靠近圈梁区域弯矩逐渐增大；荷载通过壳面首先传向正交的两根主肋，再由主肋所连接的次肋向圈梁传递；随着荷载增大，加载点附近出现塌陷区，结构发生局部强度破坏．最后利用有限元软件对组合肋壳进行数值分析，结果与试验吻合．
Abstract:
The composite ribbed shell is a new large-span space structure with composite ribs and reinforced concrete shell. The static loading test was conducted on 1/10 scale spherical composite ribbed shell, and the static behavior, failure mode were investigated. Through tracking the loading process, the static behavior indexes including the crack development, the failure pattern and the loaddisplacement curve are obtained to study the transfer path, bearing capacity and failure mechanism. The results show that composite ribbed shell has comparatively high bearing ability and anticollapse behavior. The internal force in composite rib was dominated by axial force, while in RC shell mainly by thin film force, and the bending moment was increased near the foundation edge gradually. The load on shell surface was transferred to the orthogonal two main rib, then from the minor ribs to the foundation edge With the loading increased, shell surface and the concrete part in composite rib were both crushed, the structure failure is local strength damage. Finally, A numerical analysis is made, the result is consistent with the test.

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备注/Memo

备注/Memo:
收稿日期:2017-04-10修改稿日期:2018-05-18
基金项目:国家自然科学基金青年科学基金项目(51308443)；陕西省教育厅专项科研项目(15JK1384)；陕西省自然科学基金面上项目（2014JM2-5053）
第一作者:常玉珍(1979-)，女，博士，副教授，主要从事钢混凝土组合结构、大跨度空间结构体系方面研究．E-mail：changyz@xauat.edu.cn
更新日期/Last Update: 2018-09-10