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Average Correction for Compensation of Differential Column Shortening in High-rise Buildings  

Park, Sung-Woo (연세대학교 건축공학과)
Choi, Se-Woon (연세대학교 건축공학과)
Park, Hyo-Seon (연세대학교 건축공학과)
Publication Information
Journal of the Computational Structural Engineering Institute of Korea / v.23, no.4, 2010 , pp. 395-401 More about this Journal
Abstract
The vertical members of structures are shortened as time goes on. Because structures have been high-rising and atypical there should be different axial loads among vertical members and it causes differential column shortenings. The differential column shortening add stresses to connections, make slab tilt, and damage to non-structural components. To reduce these influences compensation is need. The rational compensation means the exact expectation of amounts of column shortenings and the reasonable corrections. The expectation of column shortenings are more exact as researched, however, there is little research about the compensation. This paper presents the average correction method and the constraints for differential column shortenings considering errors due to the construction precision. The relations between constraints and the number of correction groups give an objective criterion for decision of constraints.
Keywords
column shortening; compensation; average correction;
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  • Reference
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