In-Plane Seismic Resistance of Two-Story Concrete Masonry Walls with Openings

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 设计和材料施工技术并不能使一个 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变量 影响最终产品配置及其在 地震荷载 为了描述砌体的地震反应， 建筑物，有必要发展基本的知识基础， 确定符合安全和经济的基本设计方法 要求. 本研究将探讨平面内抗震两个- 层混凝土砌体墙与开口。 研究项目形式 在单层面板的平面内调查和 对三层楼高的墙壁和五层楼高的结构进行调查。 的 调查将考虑地板-墙壁接缝的影响， 以及地板元素的影响。 该项目 主要是实验性的，标本将在 实验室和测试下的组合垂直和平面 横向载荷 结果将用作输入，以确定材料 极限状态设计方法，以抵抗地震荷载。 首席研究员非常有资格进行这项研究 项目和机构提供优良的设施。 一个奖项是 在这个为期两年的研究项目的第一年推荐。 这 该研究项目将与美国协调-日本协调 Massible建筑研究与技术协调计划 Massimo Research Program（TCCMAR）

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 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 variable which influence 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 will investigate the in-plane seismic resistance of two- story concrete masonry walls with openings. The research project forms a transition between in-plane investigations on single-story panels and investigations on three-story walls and on a five-story structure. The investigation will consider the effect of floor-wall joints, the effect of wall openings, and the effect of floor elements. The project is primarily experimental where the specimens will be constructed in the laboratory and tested under combinations of vertical and in-plane lateral loads. The results will be used as input to establish material limit state design methodologies to resist seismic loadings. The principal investigator is highly qualified to conduct this research project and institution provides excellent facilities. An award is recommended for the first year of this two-year research project. This research project will be coordinated with the U.S.-Japan Coordinated Program for Masonry Building Research and the Technical Coordinated Committee for Masonry Research Program (TCCMAR).