美国第一夫人——米歇尔·奥巴马

<正>Michelle grew up on the South Side of Chicago.Her parents poured everything they had into their children and their education.米歇尔在芝加哥南部长大,她的父母为了孩子的成长和教育付出了很大代价。Michelle attended public schools in Chicago before going to Princeton for college and then     

漫游伦敦

<正>伦敦是世界上一个拥有悠久历史的城市,其优美的景色、温和的气候、繁荣的商业吸引了大量的游客。如果你有机会去伦敦旅游,下面这些地方可不要错过哟!London Tower Bridge伦敦塔桥London Tower Bridge is over the Thames River in London,opened on June 30,in 1894.It is the most distinctive1of London’s bridges and is one of best bridges in the world.The total length of the bridge is half a mile.It is a double-deck bridge.The lower is the roadway with a width of 35 feet and the higher is a footway 12.5 feet wide.     

迪拜高塔

The design for RMJM 83-storey Dubai Tower is a dynamic and elegantly proportloned skyscraper, rising over 400 metress above the Arabian Gulf. Situated at the prominent water＇s edge, this crystalline glass tower is intended to provide an iconic and symbolic reference for Dubai in the neighbouring city of Doha, Qatar.     

Influence of soilestructure interaction on seismic collapse resistanceof super-tall buildings

Numerous field tests indicate that the soilestructure interaction （SSI） has a significant impact on thedynamic characteristics of super-tall buildings, which may lead to unexpected structural seismic responsesand/or failure. Taking the Shanghai Tower with a total height of 632 m as the research object, thesubstructure approach is used to simulate the SSI effect on the seismic responses of Shanghai Tower. Therefined finite element （FE） model of the superstructure of Shanghai Tower and the simplified analyticalmodel of the foundation and adjacent soil are established. Subsequently, the collapse process of ShanghaiTower taking into account the SSI is predicted, as well as its final collapse mechanism. The influences ofthe SSI on the collapse resistance capacity and failure sequences are discussed. The results indicate that,when considering the SSI, the fundamental period of Shanghai Tower has been extended significantly,and the collapse margin ratio has been improved, with a corresponding decrease of the seismic demand.In addition, the SSI has some impact on the failure sequences of Shanghai Tower subjected to extremeearthquakes, but a negligible impact on the final failure modes.
2014 Institute of Rock and Soil Mechanics, Chinese Academy of Sciences. Production and hosting byElsevier B.V. All rights reserved.     

芝加哥

<正>We have often seen on the film screens stories about gun battles in Chicago’s streets and we know little about the city’s rich culture life.我们经常在电影屏幕里看到芝加哥街上的枪战片,我们对于这个城市丰富的文化生活了解得可能很少。In fact,it has one of the first class symphonies in the US and it has always been producing world famous singers and jazz greats.     

比萨斜塔

<正>The Leaning Tower of Pisa is one of the most interesting buildings~4 in the world.Do you know where it is?The Leaning Tower of Pisa is in Italy.It's over800 years old.It is one of the most popular places to visit in the world.比萨斜塔是世界上最有趣的建筑之一。你知道它在哪里吗?比萨斜塔位于意大利,有800多年的历史了,它是世界上最受欢迎的旅游景点之一。     

TRIALS TO STABILISE THE LEANING TOWER OF PISA LOOK VERY PROMISING

The ground is quite literally being readied to save the Leaning Tower of Pisa from collapse.The marble Tower of Pisa was begun in 1174 and     

A Review of Housing Construction in China''''s Cities

In this article,the author briefly reviews the urban housing construction in the 40 yearssince the founding of New China,especially over the recent ten years.He puts emphasis on theanalysis of the benefits and defects brought about by the financing and banking system for urbanhousing construction before and during the reform of housing system.     

Hong Kong——City of Vision

This book was born from a series of international, highprofile Government-organised exhibitions held in London,Frankfurt, Chicago, Hong Kong and now Japan. The purpose of the exhibitions and this book is to bring Hong Kong on to the global stage, as one of the world's greatest cities. Inside the Book:     

Review and perspective of expressway tunnels in Taiwan, China

Since the construction of the first expressway in the 1970s, the total length of expressways in Taiwan has increased to over 1 000 km, of which 40 km are aligned with tunnels. These twin-tube tunnels, which have two or three lanes in each tube, are characterized by large cross-sections. Due to the complicated topography and heterogeneous geological conditions of Taiwan, tunnel construction has encountered many difficulties. Thus, many advanced excavation methods were developed during tunnel construction. To satisfy the concurrent requirements of safety, economy and efficiency, new construction methods and techniques should be developed or introduced. Moreover, environmental protection and ecological conservation must be paid increasing attention to the goal of substantial development.