Response and Damage of Unreinforced Masonry Buildings in Loma Prieta Earthquake

洛马普列塔地震中无筋砌体建筑的响应和损坏

• 批准号: 9003654
• 负责人: Daniel Abrams
• 金额: $ 11.28万
• 依托单位: University of Illinois at Urbana-Champaign
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1990
• 资助国家: 美国
• 起止时间: 1990-04-15 至 1992-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9003654&HistoricalAwards=false
• 关键词: Response; Damage; Unreinforced; Masonry; Buildings

This is a post Loma Prieta earthquake (Oct. 1989) investigation project in learning from this damaging event. The project will focus on the study of performance of unreinforced masonry buildings (UMR) during the earthquake. Response of selected structures will be estimated using computational models, and correlated with expectations of structural strength and observations of damage. The study will encompass buildings located in the counties of Alameda, Monterey, Santa Clara, Santa Cruz and San Francisco. Both damaged and undamaged structures will be considered. The study will include a wide variety of masonry element types including structural walls resisting forces within and normal to their plane, infill panels in either steel or concrete frames, cladding, parapets, and other nonstructural elements. Both engineered and nonengineered construction will be studied. Candidate structures will be selected for investigation based on degree of damage, expected force level, location, soil conditions, and availability of information on ground motions and structural descriptions. It is expected that knowledge gained will be helpful for mitigating the earthquake hazard in the eastern USA because of the widespread use of unreinforced masonry in those regions of a potential moderate intense earthquake.

这是洛马普列塔地震（1989 年 10 月）后的一项调查项目，旨在从这一破坏性事件中汲取教训。 该项目将重点研究地震期间无筋砌体建筑（UMR）的性能。 将使用计算模型来估计所选结构的响应，并将其与结构强度预期和损坏观察结果相关联。 该研究将涵盖位于阿拉米达县、蒙特雷县、圣克拉拉县、圣克鲁斯县和旧金山县的建筑物。 受损和未受损的结构都将被考虑。 该研究将包括各种砌体元素类型，包括抵抗其平面内和垂直于其平面的力的结构墙、钢或混凝土框架中的填充板、覆层、女儿墙和其他非结构元素。 工程和非工程建筑都将被研究。 将根据损坏程度、预期受力水平、位置、土壤条件以及地面运动和结构描述信息的可用性来选择候选结构进行调查。 预计所获得的知识将有助于减轻美国东部的地震灾害，因为在那些可能发生中度地震的地区广泛使用无筋砌体。