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原文传递 Analysis and Design of One-Way Steel-Plate Composite Walls for Far-Field Blast Effects

题名：	Analysis and Design of One-Way Steel-Plate Composite Walls for Far-Field Blast Effects
正文语种：	eng
作者：	Bruhl, Jakob C.;Varma, Amit H.
作者单位：	US Mil Acad Dept Civil & Mech Engn 752 Thayer Rd West Point NY 10996 USA;Purdue Univ Lyles Sch Civil Engn Bowen Lab Large Scale Civil Engn Res Civil Engn 550 Stadium Mall Dr W Lafayette IN 47907 USA\|Purdue Univ Lyles Sch Civil Engn Bowen Lab Large Scale Civil Engn Res 550 Stadium Mall Dr W Lafayette IN 47907 USA
关键词：	Author key Blast resistance;Resistance function;Composite structure;Dynamic analysis;Steel plate;Concrete
摘要：	This paper presents the development of normalized total force-total impulse (P-I) diagrams for analyzing and designing steel-plate composite (SC) walls to resist far-field blast loads. The P-I diagrams depict contours of constant damage states created using a single-degree -of-freedom (SDOF) model for one-way SC wall panels subjected to uniform pressure loading resulting from far-field blasts. The resistance function for uniform pressure loading was developed using a novel (hybrid experimental-numerical) approach that eliminated the need for specialized testing and loading equipment. The hybrid approach consisted of (1) conducting four-point bending tests, (2) developing and benchmarking three-dimensional (3D) finite-element (FE) models for the tests, (3) using the benchmarked FE models to conduct numerical simulations for uniform pressure loading, and (4) idealizing the resistance function for uniform pressure using a bilinear relationship. The SDOF model and idealized resistance functions were further benchmarked using results from shock-tube tests conducted on SC wall panels. The benchmarked SDOF model was used to conduct parametric analyses leading to the development of ductility-dependent total pressure -total impulse (P-I) diagrams. These P-I diagrams were validated using the experimental results from blast tests and additional results generated using the benchmarked FE models. The P-I diagrams, along with the ductility-dependent damage states, are recommended for the design of SC wall panels subjected to far-field blast loading. DOI: 10.1061/(ASCE)ST.1943-541X.0002868. (c) 2020 American Society of Civil Engineers.
出版年：	2021
期刊名称：	Journal of Structural Engineering
卷：	147
期：	1
页码：	04020288.1-04020288.13