This document provides guidance on the design of holding down bolts for attaching steel or precast concrete stanchions to reinforced or un-reinforced concrete foundations, using Eurocode 2. Concrete Advice sheet 5 covers the design of holding down bolts to BS 8110-1. Design approaches are given for resisting the uplift on the bolts and for the allowable bearing pressure underneath the stanchion base plate. This document only covers bolts in tension or compression and does not coverbolts in shear. A method for the design of dowels in shear is included in Concrete Society Technical Report No 34. Proprietary fixings are not included in this document. The manufactures technical literature should be consulted for the loadcapacity of proprietary fixings.
Published: November 2010. Revised September 2017
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