全现浇钢筋混凝土框架结构施工图与信息化设计+CAD图纸 第6页

荷载计算
3.1 竖向恒荷载计算
3.1.1
（1）屋面1——上人保温平屋面
40厚C20防水细石混凝土，内配双向钢筋网                     
                                     0.04m×24+0.002kN/m3          1.0 kN/m2
1.2厚高分子防水卷材二道（冷底子油二道结合）                   
                                     0.0012m×12×2 kN/m3         0.3 kN/m2
20厚1:3水泥砂浆找平层                   
                                       0.02m×20 kN/m3           0.4 kN/m2
轻质混凝土i=3%找坡层，最薄处30厚                 
                                       0.07m×16 kN/m3          1.0 kN/m2
60厚挤塑聚苯板                                         
                                       0.06m×30kN/m3           1.8 kN/m2
120厚现浇钢筋混凝土楼板               
                                       0.12m×25 kN/m3           3.0 kN/m2
20厚水泥砂浆板底抹灰                  
                                       0.02m×20 kN/m3           0.4 kN/m2
……………………………………………………………………………………………………
合计                                                            7.1kN/m2

（2）屋面2——不上人保温平屋面
40厚C20防水细石混凝土，内配双向钢筋网                     
                                     0.04m×24+0.002kN/m3          1.0 kN/m2
1.2厚高分子防水卷材二道（冷底子油二道结合）                   
                                     0.0012m×12×2 kN/m3         0.3 kN/m2
20厚1:3水泥砂浆找平层                   
                                       0.02m×20 kN/m3           0.4 kN/m2
轻质混凝土i=3%找坡层，最薄处30厚                 
                                       0.07m×16 kN/m3          1.0 kN/m2
60厚挤塑聚苯板                                         
                                       0.06m×30kN/m3           1.8 kN/m2
120厚现浇钢筋混凝土楼板               
                                       0.12m×25 kN/m3           3.0 kN/m2
20厚水泥砂浆板底抹灰                  
                                       0.02m×20 kN/m3           0.4 kN/m2
……………………………………………………………………………………………………
合计                                                            7.1kN/m2

（3）屋面3——不上人非保温平屋面
1.2厚高分子防水卷材二道（冷底子油二道结合）                   
                                     0.0012m×12×2 kN/m3         0.3 kN/m2
20厚1:3水泥砂浆找平层                   
                                       0.02m×20 kN/m3           0.4 kN/m2
轻质混凝土i=3%找坡层，最薄处30厚                 
                                       0.07m×16 kN/m3          1.0 kN/m2
120厚现浇钢筋混凝土楼板               
                                       0.12m×25 kN/m3           3.0 kN/m2
20厚水泥砂浆板底抹灰                  
                                       0.02m×20 kN/m3           0.4 kN/m2
……………………………………………………………………………………………………
合计                                                            4.5kN/m2

（4）屋面4——天沟
1.2厚高分子防水卷材二道（冷底子油二道结合）                   
                                     0.0012m×12×2 kN/m3         0.3 kN/m2
轻质混凝土i=1%找坡层，最薄处20厚                 
                                       0.022m×20 kN/m3          0.4 kN/m2
120厚现浇钢筋混凝土楼板               
                                       0.12m×25 kN/m3           3.0 kN/m2
……………………………………………………………………………………………………
合计                                                            3.7kN/m2

（5）屋面5——上人不保温露台屋面
40厚C20防水细石混凝土，内配双向钢筋网                     
                                     0.04m×24+0.002kN/m3          1.0 kN/m2
1.2厚高分子防水卷材二道（冷底子油二道结合）     

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