Modelling and defining the values of all climatic loads is a time-consuming process and a source of possible errors. Using the 3d wind and snow generator in Advance Design can increase your productivity by reducing the time spent calculating the loads and provide more accurate results. Several climatic standards are available in Advance Design, including ASCE 7, NBCC, and Eurocode 1 with different national appendixes. The 3d shape of the envelope is taken into account, therefore you can create loads on a wide range of structures, including portal frames, panels, horizontal roofs, two slopes’ roofs, isolated roofs, protruding roofs, etc. Advance Design makes the interpretation of the geometry based on the selected code, apply the load to the structure, and groups them in the correct load cases.
The first step to use the climactic generator is to define the envelope of the building on the 3d model using load areas. Advance Design will use the load areas to understand the geometry of the structure and to transfer the loads to the supporting elements. It is possible to generate them on the entire structure in just a few clicks using the “Load Area on Selection” tool, by extrusion or by manual definition.
In the load area’s properties, you can modify the load distribution, define a diaphragm and a self-weight if required. The external pressure coefficient (Cpe) is automatically calculated for each load area and the internal pressure coefficients (Cpi) can be selected manually in accordance with the size and positioning of the openings in the building.
The next step is to create and configure the load family in the project browser.
The global parameters for the wind loading will be accessible in the property panel after creating a wind load family and selecting it. The region dialog box contains all the region from the Annex C of the National Building Code and Advance Design will automatically select the associated wind pressure. It is also possible to manually enter the pressure if necessary.
After the model and load family are defined, a single click in the project browser can generate all the necessary wind loads on the structure.
The loads will be automatically grouped into the correct load cases. To help identify them in the project browser, the name of each loads will be the same as the load area on which they are applied. They can also be modified, deleted or moved after they have been generated.
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