Innovative Techniques for Strengthening RC Frame Systems

加固 RC 框架系统的创新技术

• 批准号: 9221531
• 负责人: Michael Kreger
• 金额: $ 22万
• 依托单位: University of Texas at Austin
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1993
• 资助国家: 美国
• 起止时间: 1993-02-01 至 1996-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9221531&HistoricalAwards=false
• 关键词: Innovative; Techniques; Strengthening; RC; Frame

The objective of this project is to study the performance of a rehabilitation scheme which can be used to correct the "weak links" in a frame system, but will simplify the construction process and reduce the time and inconvenience associated with most rehabilitation projects. The procedure is based on the use of precast wall segments to make up the infill between columns and floors and to supplement the axial tensile capacity of the existing columns through the use of post-tensioned tendons extending vertically through the structure at the columns. The research is divided into three parts. The first part involves a study of techniques for constructing the panel closure strips and evaluating their performance. The second part is directed toward a study of various methods for transferring forces at the infill panel-existing frame interface. Finally, a large-scale model comprising several stories of the structure with infills will be constructed to verify performance and provide data on overall system response. This project is a part of research initiative on "Seismic Repair and Rehabilitation of Structures."

本项目的目标是研究 一个康复计划，可以用来纠正 “薄弱环节”的一个框架系统，但将简化 减少施工过程中的时间和不便 与大多数康复项目有关。 的程序 是基于使用预制墙段， 填充在柱子和地板之间， 现有柱的轴向抗拉承载力， 使用后张预应力筋， 柱子上的结构。 本研究分为三个部分。 第一部分 包括研究建造面板的技术 密封条和评价其性能。 第二 部分是针对各种方法的研究， 在填充板-现有框架处传递力 接口. 最后，一个大型模型，包括几个 将建造带有填充物的结构层， 验证性能并提供整个系统的数据 反应 该项目是“地震”研究倡议的一部分， 结构的修复和重建。"