IntroductiontoEarthquakeResistantDesignofBuildings建筑抗震设计.ppt,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)
1 INTRODUCTION TO TECTONICS The Earth is composed of layers of different composition and physical properties, principally the solid central core, the fluid peripheral core, the viscous mantle, and the solid lithosphere. The lithosphere is comprised of the upper mantle and the crust, the outer shell...
6、s in light sediments and 45 km/s in the Earths crust up to 7 km/s in the deep mantle. As a consequence, the first waves of a distant earthquake arrive at an observatory via the Earths mantle. 地震波是指从震源产生向四外辐射的弹性波。地球内部存在着地震波速度突变的基干界面、莫霍面...
MODULE3 The Violence of Natureflooddroughtfirehurricane typhoon tornadolightningthunderstorm sandstorm earthquake tsunami/tidal wave volcanic eruption/volcano mudflow landslide snow slide 洪水洪水干旱,旱灾干旱,旱灾火灾火灾飓风飓风 台风台风 龙卷风龙卷风闪电闪电 雷暴雷暴 沙尘暴沙尘暴 地震地震海啸海啸 火山喷发火山...
Introduction and reading earthquake fire tornado flood Mud-rock flow hurricane snow disaster typhoon 地震火灾龙卷风洪水泥石流飓风雪灾台风 Disasters of Nature 闪电雷暴火山喷发沙尘暴海啸 lightning Thunderstorm volcanic eruption Sandstorm Tsunami Listen to What is a Tornado and fill in the blanks A tornado ...
event. When there is too much rain for a drainage system to cope with, the surrounding land will flood. 2. When there is consistent rain over a long period of time a flood can happen because surrounding land becomes saturated and there is too much water with no where for it to go. ...
6.To_my_astonishment,_there was nobody at home when I woke up. 令我惊讶的是,当我醒来时家里没人。 7.The company always takes_account_of the salary of workers whenever possible. 只要有可能,这家公司总是考虑到工人的薪水问题。 8.On hearing the news of the earthquake, people ...
Philosophy 130N Introduction哲学130N介绍幻灯片PPT Philosophy367:Introduction Copyright2006MakotoSuzuki 精品文档 TheAimsofDayOne •Introduceyoutothiscourse.•Examinemoralrelativism.精品文档 TheInstructor •Name:MakotoSuzuki(CallmeMakoto.)•AstypicaloftraditionalJapanese,beingshyand accustomedtoearthquake(...
3.The shaking buildings showed us that an earthquake was coming. 4.It is exciting to watch competing athletes reach the other end of the swimming pool. B 1.My mother is a happy woman.She always gets up smiling. 2.After the dog fell in the lake,it climbed out shaking itself. ...
The formation of earthquakes Formation:形成 movement Cause of the 1906 earthquake • 圣安德烈亚斯断层(英语:San Andreas Fault) 是一段长约1050千米、横跨美国加利福尼亚州 西部和南部以及墨西哥下加利福尼亚州北部和 东部的断层,位于太平洋板块和北美洲板块的 交界处。 • 断层附近常发生地震,其中...