sfds(国外英文资料).docVIP

sfds(国外英文资料) In fact, the Tokyo metro has reached three levels underground: in addition to building a station in the middle of the channel tunnel, it has also built a museum. (6) structural form The development of computational theory and computational means, and the emergence of new material new technology, provide favorable conditions for the innovation of structural form. The spatial structure will be more widely used, the structure of different forces will be integrated, and the structure will be more rational and safe. (7) new energy and energy multipolarization Because our country is a country in the exhibition, the economy is not developed, infrastructure is far from satisfy the requirement of peoples living and national economy sustainable development, so have a lot of work to do in terms of basic construction. Moreover, the sustainable development should be considered in the professional activities of civil engineering. These professional activities include: buildings, roads, railways, Bridges, airports and other engineering construction, the utilization of ocean, water, energy and waste treatment etc. The issue is a matter of great concern to all countries in the world, and the quest for a new alternative energy and energy multipolarity is a major task that mankind must solve in the 21st century. This also puts forward new requirements for civil engineering and should be taken seriously enough. The idea of the development of civil engineering materials There is limited land and resources for living, living and farming on earth, and the pace of population growth is accelerating. As a result, the future of civil engineering is moving at least five directions in order to survive. High altitude extension Now the tallest building in the artificial building is 646m polish Gabin227kHz steel tower, which is pulled by 15 steel cilium. Japan plans to build a 800.7 m high of one thousand in Tokyo tower, it is about 1.25 miles from the sea, will work, leisure, entert