|Table of Contents|

Simplified Analysis for Frame Structure Considering Construction Process, Shrinkage and Creep(PDF)

《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

Issue:
2006年02期
Page:
41-45
Research Field:
Publishing date:
2006-06-20

Info

Title:
Simplified Analysis for Frame Structure Considering Construction Process, Shrinkage and Creep
Author(s):
SHEN Pu-sheng;  FANG Hui;  XIA Xin-hong;  GONG Hu-guang;  TAN Zheng
School of Civil Engineering, Hunan University, Changsha 410082, Hunan, China
Keywords:
creep;  shrinkage;  construction process;  frame structure;  high-rise building
PACS:
TU378.4
DOI:
-
Abstract:
Shrinkage and creep effects of concrete in frame structures wereresearched. Based on the superposition principle of linear creep, firstly, the calculation formulas of creep strain of member's cross-sections under multi-loading were deduced. The effects of loading-age, loading-rate, member thickness and surroundings relative humidity on the creep could be taken into account in theseformulas. Then, the method to determine vertical displacement and displacement difference in frame structures was presented. The shrinkage and creep effects of a tall frame structure were analyzed by using this method. The results show that this method is simple and applicable in estimating shrinkage and creep for design of high-rise building structures. It is also shown that shrinkage and creep of concrete have great effects on the mechanical performances of frame structures, and can not be neglected in engineering design and construction.

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Last Update: 2006-06-20