NEESR: Seismic Performance of Conventional and Innovative Special Structural Walls

NEESR：传统与创新特殊结构墙体的抗震性能

• 批准号: 1208192
• 负责人: John Wallace
• 金额: $ 100万
• 依托单位: University of California-Los Angeles
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2012
• 资助国家: 美国
• 起止时间: 2012-05-01 至 2017-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1208192&HistoricalAwards=false
• 关键词: NEESR; Seismic; Performance; Conventional; Innovative

Solid reinforced concrete structural walls that span from the foundation to the building roof are one of the most common structural systems used to resist earthquake forces in the United States and worldwide. In many buildings, these walls surround stairs and elevators or are located at the building perimeter. Evolution in wall design and construction practices has resulted in thinner, more efficient wall geometries that are pushing the seismic performance limits of this structural system. Indeed, poor performance in some recent earthquakes and structural engineering laboratory tests demonstrate that revisions in seismic design practices now are necessary to ensure that future construction meets the high performance expectations for modern construction. This research will explore seismic design and performance limits for structural walls, considering both conventional and innovative wall construction practices. The research will investigate: (a) mechanics models to understand poor performance of conventional construction, (b) innovative yet practical new systems that can transform design practices, (c) performance-based design limits for conventional and innovative systems, and (d) international collaborative development and interpretation of shake table tests of full-scale, three-dimensional building structures. This research is a collaborative effort among researchers at the University of California at Los Angeles and University of California at Berkeley. Primary tests will be conducted at the George E. Brown, Jr. Network for Earthquake Engineering Simulation (NEES) facilities at the University of California at Berkeley and University of Illinois at Urbana-Champaign. In addition, the project team will collaborate with researchers from the University of Tokyo and Japan's National Research Institute for Earth Science and Disaster Prevention, who will conduct full-scale building tests on the E-Defense shake table facility in Miki, Japan. Data from this project will be archived and made available to the public through the NEES Project Warehouse/data repository (http://www.nees.org). The research program tackles an important and challenging problem that will advance discovery and understanding of one of the most common building systems used to resist earthquake forces. The results of the research will be disseminated in multiple ways: by sharing results using NEES resources, by involving earthquake professionals, and by disseminating educational materials. The results will benefit society most directly by helping define appropriate seismic design requirements for efficient and high-performance building construction. These goals will be accomplished by the active participation of the researchers with professional organizations and by utilizing an advisory board of expert engineering professionals actively involved in earthquake engineering. Graduate and undergraduate student experiences will be enhanced by active participation in research and by collaboration among the participating universities, with Japanese researchers, and interactions with design professionals. This award is part of the National Earthquake Hazards Reduction Program (NEHRP).

从地基到建筑物屋顶的实心钢筋混凝土结构墙是美国和世界范围内用于抵抗地震力的最常见的结构系统之一。 在许多建筑物中，这些墙围绕楼梯和电梯或位于建筑物周边。 墙体设计和施工实践的发展导致了更薄、更有效的墙体几何形状，这推动了这种结构系统的抗震性能极限。事实上，在最近的一些地震和结构工程实验室测试中表现不佳，表明现在有必要修改抗震设计实践，以确保未来的建筑满足现代建筑的高性能期望。 本研究将探讨结构墙的抗震设计和性能限制，同时考虑传统和创新的墙体施工实践。 该研究将调查：（a）力学模型，以了解传统建筑的不良性能，（B）创新而实用的新系统，可以改变设计实践，（c）传统和创新系统的性能设计限制，以及（d）国际合作开发和解释全尺寸三维建筑结构的振动台测试。这项研究是洛杉矶加州大学和伯克利加州大学的研究人员共同努力的结果。初步测试将在乔治E进行。小布朗加州大学伯克利分校和伊利诺伊大学厄巴纳-香槟分校的地震工程模拟网络（NEES）设施。 此外，该项目团队还将与东京大学和日本国家地球科学和灾害预防研究所的研究人员合作，他们将在日本三木的E-Defense振动台设施上进行全面的建筑测试。该项目的数据将存档，并通过NEES项目仓库/数据储存库（http：//www.example.com）向公众提供。 该研究计划解决了一个重要而具有挑战性的问题，这将促进对用于抵抗地震力的最常见建筑系统之一的发现和理解。研究结果将以多种方式传播：通过使用NEES资源共享结果，让地震专业人员参与，以及传播教育材料。研究结果将最直接地造福于社会，帮助确定适当的抗震设计要求，以实现高效和高性能的建筑施工。这些目标将通过研究人员与专业组织的积极参与和利用积极参与地震工程的专家工程专业人员的咨询委员会来实现。研究生和本科生的经验将通过积极参与研究和参与大学之间的合作，与日本研究人员，并与设计专业人士的互动得到加强。该奖项是国家减少地震灾害计划（NEHRP）的一部分。