(甘肃省城乡规划设计研究院有限公司, 兰州 730070)

摘要: 兰州理工大学西校区大学生活动中心由剧场、报告厅和活动中心三部分组成,建筑外观以兰州“天斧沙宫”景观为原型,建筑造型较为复杂. 考虑到建筑功能及结构布置的特殊性,该建筑结构体系选用屈曲约束支撑-混凝土框架结构,采用 YJK 与 SAP2000 软件对屈曲约束支撑-混凝土框架结构、钢支撑-混凝土框架结构及混凝土框架结构进行对比分析. 结果表明:钢支撑-混凝土框架结构、屈曲约束支撑-混凝土框架结构可有效控制结构的扭转不规则,为结构提供侧向刚度;在多遇地震下,屈曲约束支撑-混凝土框架结构耗能效果并无显著体现;在罕遇地震下,屈曲约束支撑-混凝土框架结构的滞回耗能效果明显优于钢支撑-混凝土框架结构和混凝土框架结构. 同时针对结构薄弱部位采取了有效的抗震加强措施.

关键词: 屈曲约束支撑-混凝土框架; 扭转不规则; 耗能; 减震效果; 性能目标

中图分类号:TU398. 7 文献标志码:A 文章编号:1002-848X(2023)11-0025-05

DOI:10. 19701 / j. jzjg. 20210432

Structural design and analysis of college student activity center in West Campus of Lanzhou University of Technology

LU Bin, CHEN Zhong, HE Xiaodong, WANG Caixiang, ZHANG Jianbin

(Gansu Institude of Urban Planning and Design Co. , Ltd. , Lanzhou 730070, China)

Abstract: College student activity center in West Campus of Lanzhou University of Technology consists of three parts:theater, lecture hall and activity center. The exterior of the building is based on the landscape of Tianfusha Palace inLanzhou,with a complex architectural shape. Considering the particularity of building function and structure arrangement,the structural system of the building adopts buckling-restrained braced(BRB)-concrete frame structure. The BRB-concreteframe structure, steel brace-concrete frame structure and concrete frame structure were analyzed by YJK and SAP2000software. The results show that the steel braced-concrete frame structure and BRB-concrete frame structure can effectivelycontrol the torsion irregularity of the structure and provide lateral stiffness for structure. The energy dissipation effect of theBRB-concrete frame structure is not obvious in frequently occurred earthquake. The hysteretic energy dissipation effect ofBRB-concrete frame structure is obviously better than that of steel brace-concrete frame structure and concrete framestructure in rarely occurred earthquake. At the same time, effective seismic strengthening measures were taken for the weakparts of the structure.

Keywords: buckling-restrained braced-concrete frame; torsion irregularity; energy dissipation; damping effect;performance objective

第一作者:卢彬,硕士,教授级高级工程师,一级注册结构工程师,主要从事建筑结构设计工作,Email:LB13099188657@163. com.

[引用本文] 卢彬,陈忠,何小东,等. 兰州理工大学西校区大学生活动中心结构设计与分析 [ J]. 建筑结构,2023,53( 11):25-29,74. LU Bin,CHEN Zhong,HE Xiaodong,et al. Structural design and analysis of college studentactivity center in West Campus of Lanzhou University of Technology[J]. Building Structure,2023,53(11):25-29,74.