Construction Load Analysis for Concrete Structures
Publication: Journal of Structural Engineering
Volume 111, Issue 5
Abstract
A common practice in multistory reinforced concrete building construction is to shore a freshly placed concrete floor on several previously cast floors. The construction loads on the supporting floors may exceed the slab design loads during maturity, especially when the design live load is small compared with the dead load. A few studies have been conducted to analytically model the construction loading process. However, these early models are based on a number of simplifying assumptions. The objective of this paper is to develop a three‐dimensional computer model which can be used to evaluate the effect of variations of the foundation rigidity, column axial stiffness, slab aspect ratio, and shore stiffness distribution on the values of the shore loads and slab moments.
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References
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Chen, W. F., and Liu, X. L., “Study of Concrete Framed Structures During Construction,” Structural Engineering Report CE‐STR‐82‐41, Purdue University, Dec., 1982.
2.
Grundy, P., and Kabaila, A., “Construction Load on Slabs with Shored Formwork in Multistory Buildings,” ACI Journal, Vol. 60, No. 12, Dec., 1963, pp. 1729–1738.
3.
Hurd, M. K., “Formwork for Concrete,” SP‐4, 4th Ed., American Concrete Institute, Detroit, Mich., 1979.
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Neilson, K. E. C., “Load on Reinforced Concrete Floor Slabs and their Deformations During Construction,” Bulletin No. 15, Final Report, Swedish Cement and Concrete Research Institute, Royal Institute of Technology, Stockholm, Sweden, 1952.
Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 111 • Issue 5 • May 1985
Pages: 1019 - 1036
Copyright
Copyright © 1985 ASCE.
History
Published online: May 1, 1985
Published in print: May 1985
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