NEESR: Seismic Performance of Conventional and Innovative Special Structural Walls

从基础到楼顶的实心钢筋混凝土结构墙是美国和世界范围内最常见的抗震结构体系之一。在许多建筑中，这些墙围绕着楼梯和电梯，或者位于建筑物的外围。墙设计和施工实践的发展导致了更薄、更有效的墙几何形状，这正在推动这种结构体系的抗震性能极限。事实上，最近一些地震和结构工程实验室测试的糟糕表现表明，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。这项研究将探索结构墙的抗震设计和性能限制，同时考虑到传统的和创新的墙建造实践。这项研究将调查：(A)了解传统建筑不良性能的力学模型；(B)能够改变设计实践的创新而实用的新系统；(C)传统系统和创新系统基于性能的设计限制；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试验。这项研究是加州大学洛杉矶分校和加州大学伯克利分校的研究人员共同努力的成果。初步测试将在小乔治·E·布朗酒店进行。加州大学伯克利分校和伊利诺伊大学厄巴纳-香槟分校地震工程模拟网络(NEES)设施。此外，项目团队将与东京大学和日本国家地球科学与灾害预防研究所的研究人员合作，后者将在日本三木的E-Defense振动台设施上进行全尺寸建筑测试。该项目的数据将被存档，并通过NEES项目仓库/数据存储库(http://www.nees.org).)向公众提供该研究项目解决了一个重要而具有挑战性的问题，该问题将促进对用于抗震的最常见建筑系统之一的发现和了解。研究成果将以多种方式传播：利用国家地震研究中心的资源分享成果，让地震专业人员参与进来，以及传播教育材料。其结果将有助于为高效和高性能的建筑建设确定适当的抗震设计要求，从而最直接地造福社会。这些目标将通过研究人员与专业组织的积极参与和利用由积极参与地震工程的专家工程专业人员组成的咨询委员会来实现。研究生和本科生的体验将通过积极参与研究、参与大学之间的合作、与日本研究人员以及与设计专业人员的互动而得到加强。该奖项是国家减少地震灾害计划(NEHRP)的一部分。

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).