A comparison study of conventional construction methods and outrigger damper system for the compensation of differential column shortening in high-rise buildings

Kidong Park, Daeyoung Kim, Donghyun Yang, Joung Daeki, Inho Ha, Sang Dae Kim

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)317-324
Number of pages8
JournalInternational Journal of Steel Structures
Volume10
Issue number4
DOIs
Publication statusPublished - 2010 Dec 1

Keywords

  • Column shortening
  • Damper
  • Delayed joint
  • Lock-up-device
  • Outrigger

ASJC Scopus subject areas

  • Civil and Structural Engineering

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