Title:
Experimental Studies on Precast Prestressed Concrete Spatial Frame
Author(s):
Weichen Xue, Zhuangtao Xu, and Yunjun Yang
Publication:
Structural Journal
Volume:
108
Issue:
3
Appears on pages(s):
370-377
Keywords:
beam; monotonic behavior; precast; prestressed; radial oblique beam; spatial frame
DOI:
10.14359/51682353
Date:
5/1/2011
Abstract:
This paper investigated the monotonic behavior of a 1/15 scale precast prestressed concrete spatial frame that was a design alternative for the grandstand in the Qi Zhong Tennis Center built to stage the Tennis Masters Cup in Shanghai from 2005 to 2010. The structure investigated herein was assembled with 64 precast concrete components that comprised a radial oblique beam and four curved beams. Test results showed that the structure basically remained in the elastic range under the design load, including the steel roof, steel truss, and grandstand. All precast concrete components worked as a whole until 1.8 times the design load. Then, each component worked separately as a cantilever beam. The structure finally failed due to crushing of the concrete at the bottom end of some of the radial oblique beams when the load reached 2.7 times the design load.