Reinforcing Existing Unreinforced Masonry Wall Buildings, Phase II

加固现有无筋砌体墙建筑，第二期

• 批准号: 8610950
• 负责人: Joseph Plecnik
• 金额: --
• 依托单位: California State University-Long Beach Foundation
• 依托单位国家: 美国
• 项目类别: Continuing grant
• 财政年份: 1987
• 资助国家: 美国
• 起止时间: 1987-02-01 至 1989-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8610950&HistoricalAwards=false
• 关键词: Reinforcing; Existing; Unreinforced; Masonry; Wall

In the United States there exists an abundance of unreinforced masonry buildings. During past earthquakes, such buildings have suffered major structural damage and often collapsed. Current repair and rehabilitation techniques for unreinforced masonry buildings are generally costly and disturb the occupancy and architectural features of the buildings. This research project will examine a repair and rehabilitation technique that eliminates the above-noted problems. In the research, unreinforoed brick masonry walls are strengthened by coring or drilling holes through the center of the unreinforced brick masonry walls followed by the placement of reinforcement in the drilled hole, and filling the hole and adjoining voids with various types of grouts. This research will concentrate on fullscale field tests to determine structural and economic feasibility. The research will aid in future development of needed technology in the rehabilitation and strengthening of both historical and non-historical buildings against future seismic loads. The principal investigator is highly qualified to conduct the research project and an award is recommended for the first year of the two-year complete project. The institution provides excellent support facilities.

在美国，有大量未加固的砖石建筑。在过去的地震中，这类建筑遭受了重大的结构破坏，经常倒塌。目前对无加固砖石建筑的维修和恢复技术一般都很昂贵，并且干扰了建筑物的入住率和建筑特征。这项研究项目将研究一种修复和康复技术，以消除上述问题。在研究中，未配筋砖砌体墙的加固方法是在未配筋砖砌体墙的中心打芯或钻孔，然后在钻孔中放置钢筋，并在孔内和相邻的空洞中填充各种类型的浆液。这项研究将集中在全面的现场试验，以确定结构和经济上的可行性。这项研究将有助于今后开发修复和加固历史建筑和非历史建筑以抵御未来地震荷载所需的技术。首席调查员非常有资格进行这项研究项目，并建议为为期两年的完整项目的第一年颁发奖项。该机构提供了极好的支持设施。