Log In    |    Join IASS    |    Online Journal    |    Proceedings    |    Directory    |    Events    |    News

Online IASS Proceedings

IASS-SLTE Symposium 2014: Shells, Membranes and Spatial Structures: Footprints


IASS Symposium 2014

SESSION: General 1: Technical Detailing

Analysis of long-term shortening of vertical members in a super high-rise building

< Table of Contents for General 1: Technical Detailing
  • Proceedings Name: IASS-SLTE Symposium 2014: Shells, Membranes and Spatial Structures: Footprints
  • ISSN: (Electronic Version) 2518-6582
  • Session: General 1: Technical Detailing
  • Title: Analysis of long-term shortening of vertical members in a super high-rise building
  • Author(s): Xiaobei WANG, Zhenfeng GAO, Xiaoping WU, Qilin ZHANG
  • Keywords: Long-term shortening, time-dependent material, construction process, monitoring
Abstract
The effects of long-term shortening of vertical members of super high-rise buildings are a major consideration in their design and construction, especially in concrete and composite structural systems. Several models have been suggested to calculate the shortening of vertical members which occurs due to elastic, shrinkage and creep deformations. In this paper, the widely used prediction models suggested by ACI, PCA and CEB-FIP are used to a super high-rise building to investigate the vertical cumulative shortening during the construction and several years after. The results show that the total shortening using the CEB-FIP and ACI model show a larger value and are closer with the monitoring results rather than the PCA model. The results also indicate that the difference between different models increase with time and long-term monitoring need to be conducted to do further study on the appropriate predict models.

Read the complete paper (pdf) (requires membership)
© IASS All rights reserved.
IASS · CEDEX - Laboratorio Central de Estructuras y Materiales · C/ Alfonso XII, 3 · 28014 Madrid, Spain     tel. 34 91 335-7409; fax: 335-7422
Site Design & Programming
by World Design Group, Inc.