Deflection Predictions for Concrete Slabs Reinforced With Steel Decking

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Title: Deflection Predictions for Concrete Slabs Reinforced With Steel Decking

Author(s): William B. Lamport and Max L. Porter

Publication: Structural Journal

Volume: 87

Issue: 5

Appears on pages(s): 564-571

Keywords: composite construction (concrete and steel); concrete slabs; deflection; loads (forces); metal deck forms; one-way slabs; research; reinforced concrete; serviceability; structural design; tests; Design

Date: 9/1/1990

Abstract:
Concrete slabs reinforced with steel decking have become a leading means of floor-slab construction in recent years. The use of higher strength concretes and shallower sections have led to more emphasis on serviceability considerations in design. A method to predict composite steel-deck deflections is proposed, which is similar in format to the method currently recommended by ACI 318-83 for normally reinforced concrete. Deflections predicted by the recommended empirical procedure, the ACI 318-83 procedure and the method suggested in the ANSI/ASCE Specifications for the Design and Construction of Composite Slabs are compared to experimental results. The proposed method shows a significant improvement over other procedures. The proposed equations are recommended to replace the procedure currently used in the Specifications for the Design and Construction of Composite Slabs.