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Design for Whipping Pipe Impact on Reinforced Concrete Panels

by C. C. Chen, Bechtel Energy Corp, Houston, TX, USA,
O. Gurbuz, Bechtel Energy Corp, Houston, TX, USA,



Document Type: Proceeding Paper

Part of: Structural Engineering in Nuclear Facilities

Abstract:

This paper describes determination of local and overall effects on reinforced concrete panels due to whipping pipe impact in postulated pipe break events. Local damage includes the prediction of minimum concrete panel thickness required to prevent spalling from the back face of the target reinforced concrete panels. Evaluation of overall effect deals with the ductility ratio calculation for the target reinforced concrete panels. Design curves for determining the minimum panel thickness and the minimum reinforcement of reinforced concrete panels are presented in this paper for some cases commonly encountered in nuclear applications. The methodology and the results provided can be used to determine if an existing reinforced concrete wall is capable of resisting the whipping pipe impact, and consequently, if pipe whip restraints can be eliminated.

Subject Headings: Reinforced concrete | Panels (structural) | Concrete pipes | Thickness | Spalling | Construction methods | Walls

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