土木工程外文翻译---地震带民用建筑由砖混向框架发展的必要趋势.doc

Seismic zone to the framework of the civil from the brick necessary for the development trend 【Abstract】Earthquakes are inevitable natural disasters,but the choice of building structures which can effectively reduce the losses caused by the current seismic zone in construction, particularly in economically underdeveloped areas of the building.Mostly brick building structure, but its poor ability to contribute to the seismic earthquakes power and prestige, while the frame structure in the earthquakes strength is especially evident, although the price higher, but with the masonry structure.Compared to more cost effective. As more seismic capacity frame - shear wall structure, its high price and low popularity is difficult to build large-scale. 【Key words】masonry; framework; choice; cost China is located in the worlds two most active seismic zones in the middle on the east Pacific seismic belt, west and southwest is the Eurasian seismic zone after areas, is one of many earthquakes in the world, for we must strengthen the Earthquake Research and prevention. Damage caused by the earthquake in theory, three main factors: the level of the ground motion acceleration, resonance, and energy of inclusiveness. In fact, the earthquake itself is difficult to pose a threat to the safety of human life, most casualties are affected by the earthquake which caused the collapse or destruction of buildings, usually accounting for 95% casualties in the earthquake. Only less than 5% of casualties directly caused by the earthquake and the earthquake floods, landslides cause secondary disasters such as, but not seismic retrofit measures for concrete structure (walls plus not Rachels precast concrete floor) caused disaster is particularly tragic. 1. Housing a number of reasons for the collapse Houses collapsed in the earthquake, so many casualties so heavy, what the problem is where? One view is that: Since the earthquake strength, housing guard, the design did not strictly enforce the st