Planning of NEES/E-Defense International Collaboration

主要研究者：密歇根理工大学的约翰·货车·德·林特（John van de Lindt）这项探索性研究（SGER）的小额赠款提案要求提供资金，以支持与日本正在建造的电子防御大型振动台设施建立协作联系。SGER赠款还将支持通过NEESR（地震工程模拟/研究阶段网络）计划向NSF提交完整提案。该大型提案的双重目标是（1）将日本的大型振动台设施部分连接到NEES网格中，以及（2）解决整个NEES框架中木框架结构的抗震性能。木结构是美国最常见的结构，占建筑存量的80%以上。它们还代表了地震风险最高地区库存的最大部分。 木材仍将是低层建筑广泛使用的建筑材料，无论是尺寸木材形式还是新的木基材料。北岭地震中木结构的表现进一步强调了改进方法的必要性：（a）评估现有建筑物的易损性，（B）设计新结构，以更好地抵御地震，对结构和非结构元件造成可接受的少量损坏。 该SGER赠款申请的资金将主要用于（1）前往日本进一步制定合作测试计划，（2）前往2-3个NEES设施地点（可能还有加拿大的不列颠哥伦比亚省大学）以确定合适的组装测试设施，（3）前往华盛顿，DC与认识NSF的人员会面。还将要求提供少量支助费用。如果可能，如果认为合适，PI.S将安排他们访问日本，以配合2003年泛太平洋地震工程合作研讨会。 由日本国家地球科学和灾害预防研究所（NIED）于9月19日举行。10月30日 预计来自美国的另外2-3名研究人员以及来自新西兰（坎特伯雷大学的布鲁斯迪姆）、加拿大（不列颠哥伦比亚省大学的弗兰克林）、意大利（佛罗伦萨大学的Ario Ceccotti）的合作研究人员将加入该项目，并成为向NSF提交的更大提案的一部分。 来自日本的主要研究者将是Chikahiro Minowa博士（NIED）和Isao Sakamoto教授（东京大学）。 虽然该项目将涉及五个国家，但NEESR提案将被编写，以便美日合作是独立的。预计合作研究人员将向各自国家申请资助。因此，美日合作的成功将不取决于他们获得资金支持其活动的能力。国际合作工作将由本提案的主要负责人（货车de Lindt和Rosowsky）领导。 拟议中的SGER项目的智力价值在于NEES和日本电子防务之间的合作研究计划的发展。 这项合作的广泛目标将在今年年底预期的NEESR提案中得到全面发展，是开发更全面地开发木框架结构基于性能的抗震设计程序所需的系统级性能信息。 拟议的SGER项目将对科学界和整个社会产生更广泛的影响。地震工程界将受益于将电子防御振动台捆绑到NEES网格中。 这种联系将为研究人员提供六自由度的系统级知识，从而使关键的装配损坏和系统级损坏之间的关系的理解。 对社会的更广泛影响将是制定更有效的抗震设计规范和在中等事件下不易受地震破坏的建筑物清单。

PI: John van de Lindt, Michigan Tech This Small Grant for Exploratory Research (SGER) proposal is requesting funding to support the development of collaborative linkages with the E-Defense large shake table facility being constructed in Japan. The SGER grant also will support the development of a full proposal to NSF through the NEESR (Network for Earthquake Engineering Simulation / Research Phase) program. The dual objectives of this larger proposal will be (1) to partially tie the large shake table facility in Japan into the NEES grid, and (2) address the seismic performance of woodframe structures in the overall NEES framework. Wood structures are the most common structures in the United States, comprising more than 80% of the building inventory. They further represent the largest segment of the inventory at regions of the highest seismic risk. Wood will remain a widely used building material for low-rise structures, in both dimension lumber form and new wood-based materials. The performance of woodframe structures in the Northridge earthquake further underscored the need for improved methods for (a) assessing the vulnerability of the existing building stock, and (b) design of new structures to better withstand earthquakes with acceptably small amounts of damage to both structural and nonstructural elements. The funds requested for this SGER grant will primarily be used to (1) travel to Japan to further develop collaborative testing plans, (2) travel to 2-3 NEES facility sites (and possibly the University of British Columbia, Canada) to identify suitable assembly testing facilities, (3) travel to Washington, DC to meet with the cognizant NSF personnel. A small amount of support costs also will be requested. If possible, and if deemed to be appropriate, the PI.s will schedule their visit to Japan to coincide with the .2003 Pan-Pacific Symposium for Earthquake Engineering Collaboration. being held by Japan.s National Research Institute for Earth Science and Disaster Prevention (NIED) Sept. 30 - Oct. 3. It is anticipated that 2-3 additional researchers from the US as well as collaborating researchers from New Zealand (Bruce Deam, University of Canterbury), Canada (Frank Lam, University of British Columbia), Italy (Ario Ceccotti, University of Florence), will join this project and be part of the larger proposal to NSF. The lead investigators from Japan will be Dr. Chikahiro Minowa (NIED) and Professor Isao Sakamoto (University of Tokyo). Although the project will involve five countries the NEESR proposal will be written so that the US-Japan collaboration is self-contained. It is anticipated that the collaborating researchers will apply for funding from their countries. Thus, the success of the US-Japanese collaboration will not be dependent on their ability to secure funding to support their activities. The international collaborative effort will be led by the PI.s of this proposal (van de Lindt and Rosowsky). The intellectual merit of the proposed SGER project is in the development of a collaborative research program between NEES and E-Defense in Japan. The broad objective of this collaboration, which will be fully developed in the anticipated NEESR proposal at the end of this year, is the development of system-level performance information necessary to more fully develop performance-based seismic design procedures for woodframe structures. The proposed SGER project will have a broader impact on both the scientific community and society at large. The earthquake engineering community will benefit from having the E-Defense shake table tied into the NEES grid. This linkage will provide six-DOF system level knowledge for researchers, thus allowing critical understanding of the relationship between assembly damage and damage at the system level. The broader impact for society will be the development of more effective seismic design codes and a building inventory that is less susceptible to earthquake damage under moderate events.