A Comparison Study of Conventional Construction Methods and Outrigger Damper System for the Compensation of Differential Column Shortening in High-rise Buildings

作者：Park Kidong; Kim Daeyoung^*; Yang Donghyun; Joung Daeki; Ha Inho; Kim Sangdae

来源：International Journal of Steel Structures, 2010, 10(4): 317-324.

DOI：10.1007/BF03215840

• outrigger
• column shortening
• delayed joint
• damper
• lock-up-device

The outrigger and belt truss system is commonly used as one of the structural systems to effectively control the excessive drift due to lateral load and minimize the risk of structural and non-structural damage. However, this prominent structural system has a demerit of excessive stressing to structural and nonstructural members during construction due to differential column shortening. In this paper, several potential construction methods managing the outrigger to perimeter column joints experiencing differential column shortening are discussed. These methods include fixed joint without any adjustment, delayed joint, delayed joint with shim plate adjustment, and outrigger damper (or lock-up-device) installed joint. Based on our research through computer analysis, large scale laboratory test, shake table test and real installation of the apparatus to a high-rise project, the building with outrigger damper or lock-up-device system has many advantages in terms of building performance, construction convenience, quality control and cost reduction.

• 出版日期2010-12