美国弗吉尼亚州一座设计为26层的现浇钢筋混凝土住宅建筑,在施工到第24层时,大楼中央部分从上到下发生连续倒塌,留下完整的左、右两部分,被切成两座各23层和24层的塔式建筑,死伤多人。该大楼宽1803米、长118米,楼板为无梁平板结构,厚20厘米,轻质混 In a cast-in-place reinforced concrete residential building designed for 26 floors in Virginia, USA, when the construction was on the 24th floor, the central part of the building collapsed continuously from top to bottom, leaving the left and right parts intact and being cut into two. Each 23-storey and 24-storey tower building has many casualties. The building is 1,803 meters wide and 118 meters long. The floor is a beamless slab structure with a thickness of 20 centimeters and is light weight.