Estimation Theory on Cable’s Pretension in Pre-Stressed Mega Brace and Steel Frame Structure

Abstract:

How to determine cable’s pretension is one of key problems in pre-stressed mega brace and steel frame structure. According to superposition principle of structural deformation, the inner force increment of pre-stressed cable under vertical and horizontal loads was approached separately by analyzing the structural deformation and inner force increment. Based on the rule that the required pre-tension force of cable equals to the sum of inner force increment of compressed cable under vertical and horizontal load, the qualitative estimation theory on cable’s initial pre-tension considering construction influence is ultimately established.

• Periodical: Applied Mechanics and Materials (Volumes 204-208)
• Pages: 1053-1057
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.204-208.1053
• Online since: October 2012
• Authors: Bai Jian Tang*, Sheng Gu, Jun Ma
• Keywords: Initial Pretension, Mega Brace, Pre-Stress, Steel Structure

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