Bearing Capacity of Grouted and Ungrouted Recessed Ends in Hollow-Core Slabs

摘要

style="text-align: left;">This article is presented as an initial investigation into the feasibility of using recessed ends in hollow-core slab construction. It is found that in many practical situations, hollow-core slabs with recessed ends are needed on the job site. Experimental and finite element studies are conducted to determine the stress distribution in grouted and ungrouted recessed ends of hollow-core slabs. The current design procedure followed is also outlined. General observations and recommendations for design are provided. To illustrate the design procedure, a numerical design example is included.>References style="text-align: left;">1. CAN/CSA A23.3-94, Design of Concrete Structures, Canadian Standards Association, Toronto, Ontario, Canada, 1994. style="text-align: left;">2. ACT Committee 318, a€?Building Code Requirements for Structural Concrete (ACI 318-99) and Commentary (ACI 31 8R-99),a€? American Concrete Institute, Farmington Hills, MI, 1999. style="text-align: left;">3. CPCJ Design Manuala€”Precast and Prestressed Concrete, Third Edition, Canadian Prestressed Concrete Institute, Ottawa, Ontario, Canada, 1996. style="text-align: left;">4. ADINAa€” Automatic Dynamic Incremental Non-Linear Analysis, ADINA R & D Inc., Watertown, MA, Copyright 1994- 2002, 2004, style="text-align: left;">5. Manualfor the Design of Hollow Core Slabs, Second Edition, Precast/Prestressed Concrete Institute. Chicago, IL, 1998.