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CLC number: TU973+.14

On-line Access: 2012-02-27

Received: 2011-06-22

Revision Accepted: 2011-10-18

Crosschecked: 2012-02-07

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Journal of Zhejiang University SCIENCE A 2012 Vol.13 No.3 P.165-173


Moment transfer factors for column-supported cast-in-situ hollow core slabs

Author(s):  Hai-tao Li, Andrew John Deeks, Li-xin Liu, Dong-sheng Huang, Xiao-zu Su

Affiliation(s):  Department of Building Engineering, Nanjing Forestry University, Nanjing 210037, China; more

Corresponding email(s):   lhaitao1982@126.com, a.j.deeks@durham.ac.uk

Key Words:  Reinforced concrete, Cast-in-situ, Hollow core slab, Tube filler, Finite element analysis

Hai-tao Li, Andrew John Deeks, Li-xin Liu, Dong-sheng Huang, Xiao-zu Su. Moment transfer factors for column-supported cast-in-situ hollow core slabs[J]. Journal of Zhejiang University Science A, 2012, 13(3): 165-173.

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%T Moment transfer factors for column-supported cast-in-situ hollow core slabs
%A Hai-tao Li
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%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.A1100170

T1 - Moment transfer factors for column-supported cast-in-situ hollow core slabs
A1 - Hai-tao Li
A1 - Andrew John Deeks
A1 - Li-xin Liu
A1 - Dong-sheng Huang
A1 - Xiao-zu Su
J0 - Journal of Zhejiang University Science A
VL - 13
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PB - Zhejiang University Press & Springer
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DOI - 10.1631/jzus.A1100170

hollow core slabs are becoming of increasing interest as the construction industry attempts to minimise the impact of its activities on the environment. By forming voids in the interior of a concrete slab, the amount of concrete used can be reduced without significantly altering the capacity of the structure. In this study, we examined the inner force transfer mechanism of a column-supported cast-in-situ hollow core slab using finite element analysis. Both a hollow core slab and the corresponding solid slab were analysed using ANSYS and the results were compared. The orientation of the tube fillers causes the stiffness of the hollow slab to be orthotropic, potentially changing the distribution of load carried in the two orthogonal directions. Both the cross-section’s moments in the column strip and near the columns in the hollow core slab become larger than that in the solid floor. As well, the cross-section’s stiffness along the tube arrangement direction is larger than that of the radial cross-section, which causes the direction along the hole of the hollow core slab to carry more moment than the radial direction. The conversion factors of the two directions are proposed from the comparison for four typical areas of the hollow core slab, as are the moment distribution coefficients.

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article


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2015-03-31 01:30:24

I'm interested in the technology of voided slabs and i would be glad and happy if you Can attach the whole document to my email address.

with regards|Abel

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