Paper Title:
Load Redistribution Using Compressive Membrane Action in Reinforced Concrete Buildings
  Abstract

The primary function of any designed structure is to be able to support pre-determined static loads which allow the building to be occupied for its intended use. In the design process the unlikely event that the building is damaged must be considered. Often the focus is directed to the loss of primary loading elements that are fundamental to the integrity of the structure. The damage that is caused as a consequence may propagate causing collapse of surrounding elements culminating with the loss of an extensive proportion of the floor area. To prevent collapse inherent alternative load paths can be utilised. Both the elastic and plastic approved methods for the design of reinforced concrete in modern codes of practice neglect the effect of membrane forces. It has been recognised for some time that the omission of compressive membrane action (CMA), also described as ‘arching action’, can lead to a significant underestimation of load capacity. Previous studies which have attempted to determine if CMA is capable of supporting damaged columns under accidental loading conditions have not had supporting experimental testing of slabs at appropriate span to depth ratios. This paper presents an experimental program conducted on laterally restrained slab strips at approximately half scale. Combined with an analytical study, the extent to which CMA can be used as an effective robustness tool has been assessed.

  Info
Periodical
Chapter
Chapter 2: Performance of Structures
Edited by
Ezio Cadoni and Marco di Prisco
Pages
272-277
DOI
10.4028/www.scientific.net/AMM.82.272
Citation
B. M. Punton, M. P. Byfield, P. P. Smith, "Load Redistribution Using Compressive Membrane Action in Reinforced Concrete Buildings", Applied Mechanics and Materials, Vol. 82, pp. 272-277, 2011
Online since
July 2011
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Price
$32.00
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