1985年我们赴港考察高层建筑时,了解到香港当局对高层建筑的避难层甚为重视,归纳起来有如下几点要求:1.高层建筑的层数达25层时,必须设置避难层。2.超过25层的建筑物通常用避难层分为几个相等的部分。自底层至避难层或两个避难层之间,一般应不多于15层。以华润大厦为例,就分别在15、31、48层设忍了三个避难层。3.避难层的楼梯与上层及下层是不连续的。人员由上往下疏 When we visited Hong Kong in 1985, we learned that Hong Kong authorities attach great importance to the evacuation floors of high-rise buildings and sum up the following requirements: 1. When there are 25 floors in a high-rise building, we must set up a refuge floor. Buildings over 25 floors are usually divided into several equal parts by a refuge floor. From the ground floor to the refuge floor or between two shelters, generally no more than 15 floors. To China Resources Building, for example, respectively, 15,31,48 layer set up three refuge floors. 3. The stairs of the refuge floor are not continuous with the upper and lower floors. Staff from the top down