Using the Load Generator for Snow Loads integrated in S3D
In calculating snow loads, the balanced or undrifted snow load on roof is always assumed to be applied on the horizontal projection of the roof area the same way live loads are applied. 
In order to apply the snow load on the roof, we need to convert pressure \({p}_{s}\) by multiplying it by the value of cosθ. 
Using SkyCiv Load Generator in S3D
对于 专业帐户用户, 您可以通过 S3D 中的区域负载部分访问负载生成器. From the module, generating the balanced/undrifted snow load \({p}_{s}\) is automatically applied as long as the roof windward and leeward nodes are defined the the 节点分配 SkyCiv 的 3D 建模和分析工具.
The rule to define the roof windward and leeward nodes is shown below:
因此, the corresponding snow load applied is shown below:
From this model, the balanced/undrifted snow load \({p}_{s} = 1.25 kPa\) is converted by multiplying the cosine value of the Roof Pitch Angle θ 我们将插入已知值 0.9603. 因此, the corresponding roof snow load is equal to \( p = 1.20kPa\). Using open area load, it is then applied to the roof surface of the model. For the unbalanced/drifted case, manual input is necessary. This feature is only available to ASCE 7-10, 协会 7-16, NBCC 2015, 在 1991, 和AS / NZS 1170.
结构工程师, 产品开发
土木工程硕士
领英
参考资料:
- 美国土木工程师学会. (2017, 六月). 建筑物和其他结构的最小设计载荷和相关标准. 美国土木工程师学会.
