Simulation of Reinforced Masonry Walls Under Simulated Seismic Excitations

砌体结构包括建筑物的很大一部分 在美国和世界上的建筑。 配筋砌体 在中等地震带和高地震带， 由于其具有明显的经济性、消防安全性、 建筑的灵活性和易于施工。 现状 砌体结构分析与设计，材料与 建筑技术无法准确预测 在地震荷载等横向荷载作用下的建筑行为。 在 美国，砖石建筑的设计和建造方法，规范和 标准依赖于工作应力方法的混合， 经验规则，以及确定允许的 应力值。 石膏也是一种复杂的建筑材料， 大量的设计和施工变量， 最终产品配置及其在地震载荷下的响应。 为了描述砌体房屋的地震反应， 有必要发展基本知识基础，以确定基本 符合安全和经济要求的设计方法。 本研究项目将构建一个先进的分析模型， 配筋砌体和相关的数值算法来模拟 单层、双层和三层剪切单调和滞回平面反应 墙 该模型是非现象学的， 全球反应可以从 砌体、钢筋和钢筋混凝土的本构关系 与钢几何形状一起的界面。 研究 提供直接支持，以其他砌体研究人员， 结果将用于计划实验，解释实验结果， 数据，并扩展实验数据库。 这个项目是 美国的一部分-日本Massimo建筑协调计划 研究和技术协调委员会 研究（TCCMAR）计划。

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 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 project will construct an advanced analytical model for reinforced masonry and associated numerical algorithms to simulate the monotonic and hysteretic planar response of 1-, 2-, and 3-story shear walls. The model is nonphenomenological in the sense that the global response can be synthesized from the constitutive relations of the masonry, steel and steel-concrete interfaces together with the steel geometry. The research provides direct support to other masonry researchers where the results will be used to plan experiments, interpret experimental data, and extend the experimental data base. This project is part of the U.S.-Japan Coordinated Program for Masonry Building Research and the Technical Coordinating Committee for Masonry Research (TCCMAR) Program.