In today’s market, it is imperative to be knowledgeable and have an edge over the competition. ACI members have it…they are engaged, informed, and stay up to date by taking advantage of benefits that ACI membership provides them.
Read more about membership
Become an ACI Member
Founded in 1904 and headquartered in Farmington Hills, Michigan, USA, the American Concrete Institute is a leading authority and resource worldwide for the development, dissemination, and adoption of its consensus-based standards, technical resources, educational programs, and proven expertise for individuals and organizations involved in concrete design, construction, and materials, who share a commitment to pursuing the best use of concrete.
American Concrete Institute
38800 Country Club Dr.
Farmington Hills, MI
Feedback via Email
Home > Publications > International Concrete Abstracts Portal
The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.
Title: Numerical and Experimental Study of a Real Scaled Waffle
Author(s): Paulete Fridman Schwetz, Francisco de Paula S. L. Gastal, Luiz Carlos Pinto da Silva F
Appears on pages(s): 380-390
Keywords: waffle slab, reinforced concrete, grid analysis, instrumentation.
Abstract:Nowadays, rational and sophisticated structural solutions are a demand for structural designers, as a consequence of architectural design evolution and new building management concepts. Waffle slabs become an interesting alternative, in spite of its laborious numerical modeling. Therefore, it becomes necessary to increase the knowledge about the structural behavior and improve the theoretical models used for the simulation of these slabs. The objective proposed for this work was to analyze the adequacy of a design method widely used in the modeling of waffle slabs, verifying if it represents the slab behavior satisfactorily. A real scaled waffle slab was instrumented with strain gages and deflection gages for measuring specific strain and deflection in different points submitted to a load in a localized area. The numerical analysis was made using a matricial grillage model developed by a local software house specialized in structural analysis. The experimental test showed a linear behavior, even though residual results could indicate cracking in some isolated sections. The experimental deflections presented good estimate values in comparison with the numerical ones and the experimental strains defined the presence of bending moments coincident with the forecasts of the theoretical model.
Brazilian Institute of concrete, International Partner Access.
View Resource »