Design Models for Confined Concrete Columns

约束混凝土柱的设计模型

• 批准号: 9700012
• 负责人: Thomas Harmon
• 金额: $ 13.72万
• 依托单位: Washington University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1997
• 资助国家: 美国
• 起止时间: 1997-04-01 至 2000-03-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9700012&HistoricalAwards=false
• 关键词: Design; Models; Confined; Concrete; Columns

9700012 Harmon Highly Confined Concrete can be much stronger and more ductile than unconfined concrete. For this reason, confinement is being used extentensively for seismic retrofit of columns and for new construction. Current design procedures were developed to meet immediate and pressing design needs. They are based on results of full scale tests simulating existing bridge pier conditions in California. In order to extend the design procedures to more general design and loading conditions, design procedures should be formulated which are based on fundamental mechanical principles. The results of this research narrow range of design parameters. The objective of the research would be to extend these principles to cyclic loading and to perform tests to demonstrate their application to column and bridge pier design as well as formulate design procedures.

9700012哈蒙高约束混凝土可以比无约束混凝土更强、更具延展性。出于这个原因，约束被广泛地用于柱的抗震加固和新的建筑。目前的设计程序是为了满足迫在眉睫的设计需求而制定的。它们是基于模拟加利福尼亚州现有桥梁桥墩条件的全尺寸测试结果。为了将设计程序扩展到更一般的设计和加载条件，应制定基于基本力学原理的设计程序。本研究的结果缩小了设计参数的范围。研究的目的是将这些原则推广到循环荷载，并进行试验，以演示它们在柱子和桥墩设计中的应用，以及制定设计程序。