벽식 구조물의 구조요소별 횡변위 제어능력평가

Abstract

Shear wall system with outrigger is most popular structural system for controlling lateral displacement of tall buildings. This system have core wall, outriggers, external walls, internal walls, and partition walls called structural elements. For the control of top drift in tall building structure under lateral loads is the right way that increase thickness of core wall and a number of outrigger. However, numbers of outrigger require excessive construction duration and quantity of resource and using area is on the decrease owing to thick core wall. Also, there is no practical and economic guidelines for adequate design of structural elements to resist lateral loads, except outrigger and core wall. On this account, it is necessary to investigate the effects of structural elements and interaction of each wall element to lateral displacement. In this study, thickness of structural wall as well as core wall, outrigger, interaction of each wall, and design strength are used as design variables. Analysis of example structures which are a plane figure on Y type and 60 stories shear wall-outrigger system were performed and compared top drift along design variables. As results, structural elements are effective factors to control lateral displacement and core wall-external wall integration is optimum system.