Dome Effect in RC Slabs: Elastic-Plastic Analysis

by Mikael W. Braestrup, Civ. Engr.; Struct. Research Lab., Tech. Univ. of Denmark, Copenhagen, Denmark,
C. T. Morley, Lect.; Engrg. Dept., Cambridge Univ., Cambridge, England,

Serial Information: Journal of the Structural Division, 1980, Vol. 106, Issue 6, Pg. 1255-1262

Document Type: Journal Paper


The influence of elastic deformations on compressive membrane action (dome effect) in restrained slabs is considered. The elastic-plastic circular slab is analyzed, using a flow-theory approach. The inplane and boundary flexibilities are lumped and an initial elastic deflection is assumed. The first part of the predicted load-deflection curve is compared with the results of a test series and reasonable agreement is found, especially with respect to the peak load.

Subject Headings: Elastic analysis | Domes (structure) | Concrete slabs | Reinforced concrete | Slabs | Displacement (mechanics) | Load tests | Deformation (mechanics)

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