Cooperative Research on Seismic Resistant Design of Low-Cost Housing Units

PI：James K.技术优点：对于大多数大地震，最大的生命损失通常是由低成本住房单元的全部或部分倒塌造成的，这些住房单元没有充分设计和/或建造以抵抗地震力。 该提案的目的是对使用高性能混凝土建造低成本抗震住房单元进行探索性调查。 要研究的高性能特征包括自密实混凝土和向混凝土混合物中添加低百分比的钢纤维。 将调查预制和现浇住房单元的设计。 更广泛的影响：这一提议将用于启动一项长期合作研究工作，旨在为中高度地震风险区的低成本住房单元制定各种标准设计。 这种标准设计的发展应证明对整个墨西哥以及其他能够获得类似低成本住房建筑材料的中美洲和南美洲国家非常有益。 这项合作研究工作的短期目标将是提出利用NSF-NEES设施对这些标准住房单元进行动态测试的建议。 长期目标是减少未来地震中的生命损失。

PI: James K. Wight, Univ. of MichiganTechnical Merit: For most major earthquakes, the largest loss of life is typically caused by the total or partial collapse of low-cost housing units that have not been adequately designed and/or constructed to resist seismic forces. The purpose of this proposal is to launch an exploratory investigation of the use of high performance concrete for the construction of low-cost seismic resistant housing units. The high performance features to be studied include self-compacting concretes and the additional of a low percentage of steel fibers to the concrete mix. Designs for both precast and cast-in-place housing units will be investigated. Broader Impact: This proposal will be used to initiate a long-term cooperative research effort aimed at the development of a variety of standard designs for low-cost housing units in moderate to high seismic risk zones. The development of such standard designs should prove to be very beneficial throughout Mexico, as well as other Central and South American countries that have access to similar construction materials for low-cost housing. A short-term goal of this cooperative research effort will be the development of proposals to use the NSF-NEES facilities to dynamically test these standard housing units. The long-term goal is the reduction in loss of life in future earthquakes.