BASIC STUDY ON EARTHQUAKE SAFETY MASONRY CONSTRUCTIONS IN DEVELOPING COUNTRIES
BASIC STUDY ON EARTHQUAKE SAFETY MASONRY CONSTRUCTIONS IN DEVELOPING COUNTRIES
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发展中国家砌体抗震安全基础研究
DOI：
10.3130/aijt.15.637
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发表时间：
2009
影响因子：
--
通讯作者：
Y. Nakajima
中科院分区：
文献类型：
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作者：
T. Narafu;H. Sugiyama;H. Imai;A. Tasaka;Y. Nakajima
在发展中国家，普通人的房子很容易受到地震的影响。作者们一直在研究这个问题，并进行了一系列的实验。我们面临着现场施工实践结构与实验室实验样品之间的巨大差异。我们认为水泥砂浆的强度是造成差异的关键因素之一。因此，我们对来自不同流通/储存条件的几个国家的几个水泥样品进行了比较研究。我们还对发展中国家的实际建筑工地在类似条件下制作的试件进行了强度测试。我们发现不同国家/制造商的质量没有那么重要。另一方面，水泥砂比、再掺和养护对强度的影响较大，有利于提高现场强度。
Houses of usual people in developing countries are very vulnerable against earthquakes. Authors have been working on this issue and conducting a series of experiments. We faced a big difference between structures of construction practice on sites and specimens for laboratory experiments. We assume that strength of cement mortar is one of the key issues which cause the difference. Therefore we implement comparative study on several specimens of cement from several countries with different circulation/storage conditions. We also implemented strength tests of specimens made under similar conditions of actual construction sites in developing countries. We find quality of different counties/manufacturer is not so significant. On the other hand, cement/sand ration, remixing and curing affects the strength significantly for increasing the strength on sites.