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Title: Testing and Analysis of Precast Concrete Wall Panels

Author(s): Marlon Bazan and Charles Oswald

Publication: Web Session

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Date: 10/15/2018

Abstract:
This paper presents and discusses results from arena blast tests and shock tube tests on non-load bearing precast concrete wall panels and compares observed dynamic response and damage against single-degree-of-freedom (SDOF) analysis results. The tests include single-span panels and two-span continuous panels with conventional and prestressed reinforcement, and include both solid and insulated (“sandwich”) precast panels. The measured dynamic deflections and reactions are compared to the corresponding values calculated with SDOF analysis method commonly used for blast resistant design. Also, the observed panel damage levels at measured levels of response are compared to current response criteria for reinforced concrete panels. These comparisons are used to evaluate the accuracy and adequacy of the simplified SDOF methodology and the degree of conservatism in the current response limits for blast design of precast concrete wall panels. The current and proposed methodology for modeling the rebound response of concrete walls panels and the amount of composite action for sandwich panels in SDOF analysis are evaluated. The results from this study can be used to evaluate and update current guidelines for blast-resistant design of precast concrete wall panels.