Response of Reinforced Masonry Building Systems

砌体结构包括建筑结构的很大一部分 在美国和全世界。 配筋砌体建筑用途是 在中到高地震带增加，因为它的明显 经济性、消防安全性、建筑灵活性和 建设 砌体结构分析与设计的现状 设计、材料和施工技术不能使 准确预测建筑物在横向荷载下的行为， 地震荷载 在美国，砖石建筑的设计和建造 方法、规范和标准，这些方法、规范和标准依赖于 强调方法，经验规则和有问题的方法， 确定许用应力值。 马斯切拉诺也是一座复杂的建筑 材料，因为大量的设计和施工 影响最终产品配置的变量及其 地震荷载下的响应。 为了描述地震反应 砖石建筑，有必要发展的基本 确定基本设计方法的知识库， 安全性和经济性要求。 本研究计划将探讨一个动态响应的 已知力-挠度的配筋砌体结构体系 滞后现象 它将侧重于相互依存的软化， 钢筋混凝土砌体结构及破坏顺序 地震运动 将制造三个相同的测试结构 在四分之一的规模，并受到静态和动态横向 力. 数值程序将被用来帮助解释 测量. 该研究项目的成果将用于 评估使用规模模型预测全规模的行为 配筋砌体结构与以往的全面比较 规模研究成果。 这将影响设计实践。 主要研究者具有开展工作的高素质， 该机构提供优良的支助设施。 一个奖项是 建议在这项为期两年的完整研究的第一年 项目

Masonry construction comprises a large portion of building construction in the U.S. and the world. Reinforced masonry construction use is increasing in moderate to higher seismic zones because of its apparent features of economy, fire safety, architectural flexibility and ease of construction. The present state of masonry structural analysis and design, and materials and construction technologies does not enable an accurate prediction of building behavior under lateral loads such as seismic loads. In the U.S., masonry buildings are designed and built with methods, codes and standards that rely upon a mixture of working stress methods, empirical rules, and questionable methods for determining allowable stress values. Masonry is also a complex building material because of the large number of design and construction variables which influenoe the final product configuration and its response under seismic loads. In order to describe the seismic response of masonry buildings it is necessary to develop the fundamental knowledge base to determine basic design methodologies consistent with safety and economic requirements. This research project will investigate the dynamic response of a reinforced masonry building system with a known force-deflection hysteresis. It will focus on the interdependence of the softening of reinforced concrete masonry structures and the sequence of destructive earthquake motions. Three identical test structures will be fabricated at one-quarter scale, and subjected to static and dynamic lateral forces. Numerical procedures will be used to help interpret measurements. The results of this research project will be used to assess the use of scale models for predicting the behavior of full scale reinforced masonry structures by making comparisons with previous full scale research results. This will influence the design practice. The principal investigator is highly qualified to conduct the work and the institution provides excellent support facilities. An award is recommended for the first year of this two-year complete research project.