某展览馆加固设计分析  

Reinforcement design analysis of an exhibition hall

作　　者：黄颖 周莉 罗旭 史铁花 郭浩 岑宗乘 魏志栋 高继辉 Huang Ying;Zhou Li;Luo Xu;Shi Tiehua;Guo Hao;Cen Zongcheng;Wei Zhidong;Gao Jihui(China Academy of Building Research,Beijing 100013,China;Disaster Prevention Research Center,Ministry of Housing and Urban-Rural Development,Beijing 100013,China;The Architectural Design and Research Institute of HIT Co.,LTD,Harbin 150090,China;National Agricultural Exhibition Center,Beijing 100125,China)

机构地区：[1]中国建筑科学研究院有限公司,北京100013 [2]住房和城乡建设部防灾研究中心,北京100013 [3]哈尔滨工业大学建筑设计研究院有限公司,黑龙江哈尔滨150090 [4]全国农业展览馆,北京100125

出　　处：《建筑科学》2024年第11期173-182,共10页Building Science

摘　　要：某展览馆建造于1964年,为砌体和内框架混杂结构体系,屋盖为跨度18m、厚度60mm厚的钢筋混凝土薄壳结构,为使该展览馆的结构安全性、抗震性能满足现行规范要求,对该展览馆建筑进行结构加固。工程采用了改变结构体系的整体加固方法,通过新增140mm厚钢筋混凝土抗震墙将原混杂结构改变为框架-抗震墙结构,解决了原结构体系不明确的问题;同时对薄壳结构周圈环梁采用加大截面法进行加固,增强了环梁对薄壳结构的约束作用,提高了薄壳结构整体刚度,解决了环梁附近薄壳钢筋配置不足的问题。本文从整体结构分析、薄壳结构有限元计算、结构加固设计几个方面分别进行阐述,以期为类似工程提供有益的借鉴。The exhibition hall is built in 1964,which is a hybrid structure system of masonry and inner frame.The roof is a reinforced concrete thin shell structure with a span of 18 m and a thickness of 60 mm.In order to make the structural safety and seismic performance of the exhibition hall meet the requirements of the current code,the structure of the exhibition hall is reinforced.The project adopts the overall reinforcement method of changing the structural system.By adding 140 mm thick reinforced concrete seismic wall,the original hybrid structure is changed into frame-seismic wall structure,which solves the problem that the original structural system is not clear.At the same time,the ring beam of the thin shell structure is strengthened by increasing the cross section method,which enhances the constraint effect of the ring beam on the thin shell structure,improves the overall stiffness of the thin shell structure,and solves the problem of insufficient configuration of thin shell reinforcement near the ring beam.In this paper,the whole structure analysis,finite element calculation of thin shell structure and structural reinforcement design are described respectively,in order to provide useful reference for similar projects.

关 键 词：混杂结构 薄壳结构 改变结构体系 有限元分析 结构加固 

分 类 号：TU362[建筑科学—结构工程]