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1977年,在新乡市郊区医院设计的住院部楼中,其门厅外挑雨篷,采用宽490毫米,长5500毫米的圆孔预应力空心板,悬出长度3米。根据计算,并考虑增大安全系数,选用按简支活荷载为300公斤/米~2设计的通用图,其上面配筋为16φ_Y5,下面为4φ_Y5,断面高度为16厘米,断面折算高度为9.2厘米,含钢量仅6.2公斤/米~2。建成后外观轻巧美观。其构造布置方法如图所示。现全国通用的预应力空心板,最大长度一般为6米,活荷载达到300公斤/米~2,若
In 1977, in the inpatient building designed by the suburban hospital of Xinxiang City, an awning was placed outside the entrance hall, and a hollow prestressed hollow plate with a width of 490 mm and a length of 5500 mm was used to suspend the length of 3 m. According to the calculation, and considering the increase of safety factor, the general map designed according to the simple live load of 300 kg/m~2 is selected. The top bar is 16φ_Y5, the bottom is 4φ_Y5, the section height is 16 cm, and the section height is 9.2 In centimeters, the steel content is only 6.2 kg/m2. After the completion of the appearance of lightweight and beautiful. The structure layout method is as shown in the figure. The pre-stressed hollow slabs that are commonly used throughout the country have a maximum length of 6 meters and a live load of 300 kg/m2.