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


IASS Symposium 2014

SESSION: General 1: Technical Detailing

Experimental research and application of a new cable clamp suitable for ellipsoidal cable-supported domes

< 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: Experimental research and application of a new cable clamp suitable for ellipsoidal cable-supported domes
  • Author(s): Yuan FENG, Li-wei WANG, Xun XIA, Yong-quan WANG, Zheng-xing GUO, Ke-jian XIAO, Qiong BI
  • Keywords: cable-supported dome; cable clamps; friction loss; Teflon plate;
Abstract
Traditional cable clamps allow no slip of cable along cable clamps, but Changzhou Gym Center’s ellipsoidal cable-supported dome (120m×80m) requires cable slipping inside cable clamps on the construction stage. A new cable clamp allowing cable slipping was innovated to satisfy this requirement. The cast-steel cable clamp at the maximum curvature point of the outermost loop was selected and test of friction loss and bearing capacity was carried out simultaneously. The results indicated that using Teflon plate and stainless steel cushion in the cast-steel cable clamp could effectively reduce friction loss, which was acceptable for the cable-supported dome. Stress test results also showed that the cast-steel clamp worked in elastic stage. The conclusion is the new cable clamp, which allows cable slip and lowers friction loss, can effectively establish prestress in a long-span ellipsoidal cable-supported dome.

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