- 1、本文档共52页,可阅读全部内容。
- 2、有哪些信誉好的足球投注网站(book118)网站文档一经付费(服务费),不意味着购买了该文档的版权,仅供个人/单位学习、研究之用,不得用于商业用途,未经授权,严禁复制、发行、汇编、翻译或者网络传播等,侵权必究。
- 3、本站所有内容均由合作方或网友上传,本站不对文档的完整性、权威性及其观点立场正确性做任何保证或承诺!文档内容仅供研究参考,付费前请自行鉴别。如您付费,意味着您自己接受本站规则且自行承担风险,本站不退款、不进行额外附加服务;查看《如何避免下载的几个坑》。如果您已付费下载过本站文档,您可以点击 这里二次下载。
- 4、如文档侵犯商业秘密、侵犯著作权、侵犯人身权等,请点击“版权申诉”(推荐),也可以打举报电话:400-050-0827(电话支持时间:9:00-18:30)。
查看更多
Introduction to Earthquake Resistant Design of Buildings 建筑抗震設計簡介 presented by Ir Dr Y. L. Wong 黄玉龍博士 Associate Professor Dept. of Civil Structural Engineering Content (內容) Earthquakes(地震) What causes earthquakes and how do they happen? Earthquake Resistant Buildings (抗震設計) How could engineers design buildings that survive in earthquakes? Acknowledgements (致謝) Most of the materials in this presentation were extracted from websites of “Introducing and Demonstrating Earthquake Engineering Research in Schools” (IDEERS) of Taiwan National Center for Research on Earthquake Engineering (NCREE) and University of Bristol. PGA Zonation Map of South China南中國地震設計加速圖 Earthquake (地震) Earth‘s Structure(地球的構造) Tectonic Plates (構造板塊) The surface of the earth is made up of 21 tectonic plates, some large and some small, that are constantly moving. As the plates are forced against each other, they deform, and eventually they crush and fracture. The sudden fracture of the rock sends out a shock wave that causes the earths surface to shake. This is one way earthquakes can happen. Fault (斷層) Over millions of years the earths tectonic plates have been moving continuously and pushing against each other. These movements have forced them to deform producing mountains and valleys in the earths surface. Sometimes the rocky surface of the earth has just been bent and folded (Fig.1). Sometimes the movements have caused the rock to deform so much that they fracture. These fractures are called faults (Fig. 2). When the rock fractures, its sudden movement causes an earthquake as shock waves spread away from it. Faults in earthquake (斷層實例) This fence crossed the San Andreas Fault. In 1906, the fault ruptured causing the Magnitude 8.3 San Francisco Earthquake. The horizontal movement of the ground caused the fence to move by about 2 metres Causes (地震的成因) Earthquakes can be caused by natural events or human activities. Here are some of the different causes of eart
文档评论(0)