Performance of Tilt-Up Buildings in the October 1, 1987 Whittier Narrows Earthquake: Data Collection and Analysis

1987 年 10 月 1 日惠蒂尔海峡地震中倾斜式建筑的性能：数据收集和分析

• 批准号: 8804291
• 负责人: Ronald Hamburger
• 金额: $ 2.99万
• 依托单位: EQE International Inc
• 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: 1988-02-15 至 1989-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8804291&HistoricalAwards=false
• 关键词: Performance; Tilt; Up; Buildings; October

On October 1, 1987 the Whittier Narrows Earthquake struck approximately 10 miles east of downtown Los Angeles, California. This very well instrumented region includes thousands of tilt-up buildings of varying ages which experienced strong motions and in some cases, significant amounts of damage. Starting the day of the earthquake perishable performance data on approximately 120 tilt-up structures were collected throughout the area. This research project collates the performance data and conducts statistical analyses of it. Detailed performance and structural data are collected for the more seriously damaged structures. Special attention is paid to the relative performance of pre- and post-San Fernando Earthquake structures in order to evaluate seismic code provisions intended to eliminate deficiencies identified in the 1971 event. The documentation of these data will prove invaluable in highlighting serious design and construction problems common to these buildings and in improving the accuracy of future damage estimates. This is desirable because the construction type is very popular for low-rise commercial and industrial buildings and houses many strategic industries.

1987年10月1日，加利福尼亚州洛杉矶市中心以东约10英里处发生了惠蒂尔海峡地震。这一地区仪器设备齐全，包括数千座不同年代的倾斜建筑，这些建筑经历了强烈的运动，在某些情况下，造成了严重的破坏。从地震当天开始，在整个地区收集了大约120个倾斜结构的易腐性能数据。本课题对绩效数据进行整理和统计分析。对于损坏较严重的结构，收集了详细的性能和结构数据。特别关注圣费尔南多地震前后结构的相对性能，以便评估旨在消除1971年事件中发现的缺陷的抗震规范规定。这些数据的文件在突出这些建筑物普遍存在的严重设计和建造问题以及提高今后损失估计的准确性方面将证明是无价的。这是可取的，因为这种建筑类型非常受低层商业和工业建筑的欢迎，并容纳许多战略工业。