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地震工程是二十世纪二十年代发展起来的一门科学。自1923年日本关东,1925年美国山塔巴巴拉发生强烈地震后,各国陆续地开始对地震进行研究。1924年日本首先把有关地震的规定纳入建筑规范,用静力理论取地震系数的方法计入地震影响。美国于1927年,苏联于1940年也开始制定有关抗震设计规定。随着一些国家不断发生强烈地震,促进了地震工程的理论研究和地震规范的发展。解放前,我国虽修建了一些铁路桥梁,由于当时对地震尚未研究,又没有抗震设计规定,修建的铁路桥梁均未考虑地震影响。解放后,自1952年11月18日铁道部设大(52)字第2030号
Earthquake Engineering was a science developed in the 1920s. Since the strong earthquakes in 1923 in Kanto, Japan and the United States in 1925, the United States in Santa Barbara, various countries started to study the earthquake one after another. In 1924, Japan first incorporated the provisions on earthquakes into the building codes and included the seismic effects by using the seismic theory to calculate the seismic coefficient. The United States in 1927, the Soviet Union in 1940 also began to develop the relevant provisions of the seismic design. With the continuous earthquakes in some countries, the theoretical research on earthquake engineering and the development of seismic norms have been promoted. Before the liberation, though some railway bridges were constructed in our country, no seismic design rules have been found for the earthquake at the time, and the railway bridges and bridges built have not considered the earthquake impacts. After the liberation, since November 18, 1952 the Ministry of Railways has set up a large (52) word No. 2030