空冷支架结构基于内容物的性能设计方法研究  

Study on performance design method based on internal equipment of support structure system of air cooled condenser

作　　者：白国良[1,2] 刘林[1] 李晓文[2] 李红星[3] 赵春莲[3] 

机构地区：[1]西安建筑科技大学西部建筑科技国家重点实验室,陕西西安710055 [2]西安建筑科技大学结构工程与抗震教育部重点实验室,陕西西安710055 [3]西北电力设计院,陕西西安710032

出　　处：《建筑结构学报》2008年第5期107-113,共7页Journal of Building Structures

基　　金：国家自然科学基金资助项目(50778150);陕西省"13115"科技创新工程重大科技专项(2007ZDKG-39);陕西省科技攻关项目(2006K07-G24)

摘　　要：空冷支架结构体系是电厂结构的重要组成部分,结构及设备的安全性直接关系到发供电的正常运行。本文针对空冷支架结构及内部设备的特点,进行了基于结构内容物的性能设计方法研究,提出了结构的抗震性能目标、性能水准及实施性能设计的方法。其性能水准确定兼顾了结构及内容物的抗震性能水准,并划分为五个水平,采用结构层间位移角限值予以量化。给出的相关设计指标,可以有效地保证不同强度地震作用下结构及设备的安全。并通过算例说明基于结构内容物性能的抗震设计方法的实施步骤。Support structure system of air cooled condenser is an important component of the power plant, security of the structure and equipment is directly related to the normal operation of the power plant. According to the characteristic of this kind of structures, performance design method based on internal equipment of the structure was studied and performance objectives, performance levels, as well as the procedure to carry out the performance design method based on internal equipments of the structure were recommended in this paper. The seismic performance of the structure with taking into account the performance of structure and internal equipment, was divided into five levels. These five levels were quantified with storey drift ratios. The relative design index proposed in this paper could ensure the security of the structure and internal equipment under different intensity earthquakes. An example was also presented to explain the execution of the internal equipment-based seismic design method.

关 键 词：空冷支架结构 基于性能设计 性能水准 层间位移 

分 类 号：TU375[建筑科学—结构工程] TU318.1