20世纪以来,随着科学技术的进步,世界各国工业迅速发展。工业发展,首先是工艺上的变化,要求工业厂房能适应其变化,不断改变车间的平面布置,甚至室内空间高度;要求新建厂房投产速度快,已建厂房能适应新工艺的变化,进行革新改造。过去沿用的砖石建筑,混凝土建筑都不能满足这种要求。近二十多年以来,在国外工业发达国 Since the 20th century, with the advancement of science and technology, industries in various countries have developed rapidly. Industrial development, first of all, changes in the process, requiring industrial plants to adapt to their changes, constantly changing the layout of the workshop, and even the height of the indoor space; requiring the new plant to be put into production at a high speed, the building has been able to adapt to changes in the new process, and reform . In the past, masonry and concrete buildings could not meet this requirement. Nearly two decades in foreign industrial countries