（唐山市规划建筑设计研究院， 唐山 063000）

［摘要］结合钢网架与混凝土框架结构的实际工程项目，考虑采空沉降区变形对结构内力的影响，采用MIDAS/Gen软件，建立钢网架与下部钢筋混凝土框架结构的整体模型，输入采空区地表变形，提取网架各杆件的内力，分析采空区变形对网架内力的影响大小。给出采空沉降区使用钢网架与混凝土框架结构体系的可行性结论，对相关结构设计提出设计建议。

［关键词］钢网架与混凝土框架结构； 采空区； 地表变形； MIDAS/Gen

中图分类号： TU318 文献标识码： A文章编号：  1002-848X(2016)S2-0161-05

Application for large-span grid & RC frame structure in mining subsidence area

Xue Liang, Cui Jianpeng, Zhang Yumin

(Tangshan Planning and Architectural Design & Research Institute, Tangshan 063000, China)

Abstract： Combined with practical project of steel grid and reinforced concrete frame structure, considering the influence of deformation of mining subsidence area on structural internal force, using MIDAS/Gen software, the whole model of the steel grid and the reinforced concrete frame structure was built, surface deformation of mining subsidence area was input, the internal force of each rod of steel grid was extracted, the influence of mining subsidence area′s deformation on steel grid′s internal force was analyzed. Conclusions of the feasibility of using structural system of steel grid and concrete frame are made, and related suggestions for the design of structure were put forward.

Keywords： streel truss and RC frame structure; mining subsidence area; surface deformation; MIDAS/Gen

作者简介： 薛亮，硕士，工程师，一级注册结构工程师，Email：109395821@qq.com。