2.2 Live load on floor and roof 3.Live load on floor of industrial building工业建筑楼面活荷载 Determination 4.The equivalent uniformly distributed live load on slab can be obtained based on equal internal bending moment principle.For one-way slab: 8Mmax q0=b6 Note: (1)No agreed reduction value for Live load on floor of industrial building; (2)Dynamic value:normal equipment 1.05-1.1,special equipment 1.2-1.3 历素理子大军 SHANDONG UNIVERSITY OF TECHNOLOGY
2.2 Live load on floor and roof 3. Live load on floor of industrial building工业建筑楼面活荷载 ▫ Determination 4. The equivalent uniformly distributed live load on slab can be obtained based on equal internal bending moment principle. For one-way slab: Note: (1)No agreed reduction value for Live load on floor of industrial building; (2)Dynamic value: normal equipment 1.05-1.1, special equipment 1.2-1.3. 𝑞𝑞0 = 8𝑀𝑀max 𝑏𝑏𝑙𝑙0 2
2.2 Live load on floor and roof 4.Live load on roof and ash load on roof屋面活荷载和屋面积灰荷载 。Uniformly distributed live load on roof屋面均布活荷载 ·Roofs of buildings can be classified as accessible roofs.上人屋面and inaccessible roofs不上人屋面 表5.3.1显面均布活荷载标准值及其组合值 系数、频遇值系数和准永久值系数 标准值 组合值系数 频语值系数 准永久值系数 注：1不上人的墨面，当施工或维修荷载较大时，应按实际情况采用：对不同类 项次 类别 (kN/m2) 中。 , 中q 型的结构应按有关设计规范的规定采用，但不得低于0.3kN/m; 1 不上人的墨面 0.5 0.7 0.5 0.0 2当上人的屋面兼作其他用途时，应按相应楼面活荷载采用： 2 上人的屋面 2.0 0.7 0.5 0.4 3对于因墨面排水不畅、堵套等引起的积水荷载，应采取构造措施加以防 醒顶花园 3.0 0.7 0.6 0.5 止；必要时，应按积水的可能深度确定屋面活荷数： 4屋顶花园话荷载不应包括花置士石等材料自重。 墨顶运动场地 3.0 0.7 0.6 0.4 归东理子大军 SHANDONG UNIVERSITY OF TECHNOLOGY
2.2 Live load on floor and roof 4. Live load on roof and ash load on roof 屋面活荷载和屋面积灰荷载 ▫ Uniformly distributed live load on roof 屋面均布活荷载 Roofs of buildings can be classified as accessible roofs上人屋面 and inaccessible roofs不上人屋面
2.2 Live load on floor and roof 4.Live load on roof and ash load on roof屋面活荷载和屋面积灰荷载 ·Uniformly distributed live load on roof屋面均布活荷载 Live load on roof and snow load should not be considered together in design. Moreover,the live load is on the horizontal projection of roof.Since the nominal value of snow load is less than of live load on roof,the uniformly distributed live load plays the dominant role in design. 归东理子大军 SHANDONG UNIVERSITY OF TECHNOLOGY
2.2 Live load on floor and roof 4. Live load on roof and ash load on roof 屋面活荷载和屋面积灰荷载 ▫ Uniformly distributed live load on roof 屋面均布活荷载 Live load on roof and snow load should not be considered together in design. Moreover, the live load is on the horizontal projection of roof. Since the nominal value of snow load is less than of live load on roof, the uniformly distributed live load plays the dominant role in design
2.2 Live load on floor and roof 4.Live load on roof and ash load on roof屋面活荷载和屋面积灰荷载 。Uniformly distributed live load on roof屋面均布活荷载 Determination of local load and action area due to helicopter 表5.3.2屋面直升机停机坪局部荷载标准值及作用面积 类型 最大起飞重量 局部荷截标准值 (t) (kN) 作用面积 轻型 2 20 0.20m×0.20m 中型 4 40 0.25m×0.25m 重型 6 60 0.30m×0.30m 2屋面直升机停机坪的等效均布荷载标准值不应低于 5.0kN/m2. 3屋面直升机停机坪荷载的组合值系数应取0.7，频遇值 的东理子大 系数应取0.6，准永久值系数应取0。 SHANDONG UNIVERSITY OF TECHNOLOGY
2.2 Live load on floor and roof 4. Live load on roof and ash load on roof 屋面活荷载和屋面积灰荷载 ▫ Uniformly distributed live load on roof 屋面均布活荷载 Determination of local load and action area due to helicopter
2.2 Live load on floor and roof 4.Live load on roof and ash load on roof屋面活荷载和屋面积灰荷载 ·Ash load on roof屋面积灰荷载 标准值/(kNWm2) 组合 频遇 准永久 类别 屋面有挡风板 值 值 值 屋面无 系数 系数 系数 挡风板 挡风板内 挡风板外 Ψe 42 1 机械厂铸造车间（冲天炉） 0.50 0.75 0.30 0.9 0.9 0.8 2 炼钢车间（氧气转炉） - 0.75 0.30 3 锰、铬铁合金车间 0.75 1.00 0.30 4 硅、钨铁合金车间 0.30 0.50 0.30 5 烧结室、一次混合室 0.50 1.00 0.20 6 烧结厂通廊及其他车间 0.30 、 7 水泥厂有灰源车间、窑房、磨房 1.00 联合储库、烘干房、破碎房) 水泥厂无灰源车间（空气压缩机站、 0.50 机修间、材料库、配电站) 东程王大军 NG UNIVERSITY OF TECHNOLOGY
2.2 Live load on floor and roof 4. Live load on roof and ash load on roof 屋面活荷载和屋面积灰荷载 ▫ Ash load on roof 屋面积灰荷载 项 次 类 别 标准值/(kN/m2) 组合 值 系数 ψc 频遇 值 系数 ψf 准永久 值 系数 ψq 屋面无 挡风板 屋面有挡风板 挡风板内 挡风板外 1 机械厂铸造车间(冲天炉) 0.50 0.75 0.30 0.9 0.9 0.8 2 炼钢车间(氧气转炉) - 0.75 0.30 3 锰、铬铁合金车间 0.75 1.00 0.30 4 硅、钨铁合金车间 0.30 0.50 0.30 5 烧结室、一次混合室 0.50 1.00 0.20 6 烧结厂通廊及其他车间 0.30 - - 7 水泥厂有灰源车间、窑房、磨房、 联合储库、烘干房、破碎房) 1.00 - - 8 水泥厂无灰源车间(空气压缩机站、 机修间、材料库、配电站) 0.50 - -