Seismic Characteristics of Concrete Plank Diaphragms

混凝土板隔板的抗震特性

• 批准号: 8722870
• 负责人: Max Porter
• 金额: $ 7.87万
• 依托单位: Iowa State University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1988
• 资助国家: 美国
• 起止时间: 1988-10-15 至 1990-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8722870&HistoricalAwards=false
• 关键词: Seismic; Characteristics; Concrete; Plank; Diaphragms

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 examines concrete plank diaphragm characteristics and considers the effect on diaphragm action of a change in the stiffness of the supporting members. This is done by substituting masonry walls in place of steel I-beams. Data are used to determine strength, seismic behavior characteristics, and failure modes. An analytical model is determined to describe this type of system. The results of the research provide a link between experimental data and actual systems which are used in masonry structures. 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.

砌体结构包括建筑物的很大一部分 建筑在美国S.和世界 配筋砌体 在中等到更高的地震中，建筑使用正在增加 经济性、消防安全性、 建筑的灵活性和易于施工。 本 砌体结构分析与设计现状及材料 和建筑技术并不能实现一个准确的 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 建立了方法，代码和标准， 混合工作应力方法，经验规则， 确定许用应力值的有问题的方法。 石膏也是一种复杂的建筑材料， 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 为了描述地震反应， 砖石建筑，有必要制定的基本 确定基本设计方法知识库 符合安全和经济要求。 本研究计画针对混凝土板横隔 特性，并考虑了隔膜作用的影响， 支撑构件的刚度的变化。 这是 用砖石墙代替工字钢。 数据被用来确定强度，抗震性能 特征和故障模式。 一个分析模型被 我决定描述这个系统。 的结果 研究提供了实验数据和实际数据之间的联系， 用于砖石结构的系统。 这个项目是 属于美国-日本Massimo协调计划 建筑研究和技术协调委员会 Massimo Research（TCCMAR）