Research on Post-Tensioned Unbonded Prestressed Concrete Hollowed Floor

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In order to study the mechanical behaviors of post-tensioned unbonded prestressed concrete hollowed floors, a 1/4 scale post-tensioned unbonded prestressed reinforced concrete hollow slab-column structure model is used to act uniform distributed load on the floor. The test results showed that the load carrying capacity is enough. The points of maximum displacement are at the centers of slabs. By means of the experimental studies and elastic finite element analysis methods, the results showed that post-tensioned unbonded prestressed concrete hollowed floor presents anisotropy with layout of circular-tubes in one way. In direction parallel to layout of hollowed tubes, the continuity of floor is destruction and bending stiffness of slab is weakened. For studying the deformations of slab, it can still be considered continuous cross-slab in two directions.

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Periodical:

Edited by:

Xuejun Zhou

Pages:

1456-1462

Citation:

X. H. Yang et al., "Research on Post-Tensioned Unbonded Prestressed Concrete Hollowed Floor", Applied Mechanics and Materials, Vols. 94-96, pp. 1456-1462, 2011

Online since:

September 2011

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$38.00

[1] ZHOU Chao-yang, LIU Shu, OUYANG Zhu-zi, Determination of flexural stiffness for voided plates with parallel circular-tubes. Chinese journal of computational mechanics. 25(2008), pp.517-520. (In Chinese).

[2] YANG Xiao-hua, ZHOU Chao-yang, HE Xue-jun, Experimental studies on bearing capacity after earthquake of post-tensioned unbonded prestressed concrete hollow slab-column structure. Industrial construction, 40(2010), pp.54-60. (In Chinese).

DOI: https://doi.org/10.4028/www.scientific.net/amr.368-373.159

[3] CHEN Jing-ru, XIONG Huo-qing, PENG Shao-min, The analysis of design bending moment in-place concrete hollowed flat floor. Journal of Wuhan University of technology, 24(2002), pp.24-26. (In Chinese).

[4] MA Ke-jian, ZHENG Tao, NG Hua-gang, A practical method for analysis of steel wire-net cement pipe hollow plate-column structure. Spatial Structures, 8(2002), pp.14-21. (In Chinese).

[5] GAO Zhong-xue, CHEN Wen-rang, HUANG Xiao-hui, Design and research on concrete hollow flat plate floor. Industrial construction, 33(2003), pp.34-37. (In Chinese).