It is a matter of concern that, in staad pro, the features available for applying wind load is not fully automatic (unlike other design softwares) , but there is much more lacking in it, which is briefly described as below, There is automatic application of wind load only for few types/shapes of roofs/structures ,like rectangular building,pitched roof, mono slope roofs. For many other types of roofs, like saw toothed roof,cantilever roof,multispan pitched roof, combined roof, inverted pitched roof, inverted mono slope roofs, cylindrical shaped structures etc, the automation of wind load is not available, (or available partly). Moreover, automatic wind load for all types and shapes of "ROOF PURLINS", "COMMUNICATION TOWERS", wind load on circular or elliptical shaped column is not available in staad, local wind coefficient (for corner pressures) is not available, AutoWind load application is available only for global X and Z directions, but wind load in angles like 45⁰,135⁰,225⁰,270⁰,315⁰ needs to implement. It is very demanding that wind load in staad should be available for all types of roofs and purlins with Full automation and can be applied with few clicks, For illustration, refer "TABLE NO. 04 to 24" of IS 875 part -3", refer following snaps 1st snap: wind load on roof purlins 2nd snap: wind load on frames.
With regard to unclad structures is specified by the option 'Open Structure'. =
The one idea that you do make is to provide a method for creating the wind loading for roof structures to the Indian IS 875 which can be added to the backlog.
Staad CE apply wind load through wind definition only for cladded building, not for unclad structure on its exposed member width, also it not apply wind load on various types of roof like monoslope roof, curved roof, pitched roof etc.. Will this feature added??
With regard to unclad structures is specified by the option 'Open Structure'.
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The one idea that you do make is to provide a method for creating the wind loading for roof structures to the Indian IS 875 which can be added to the backlog.
This functionality already exists. The cladding is defined as a panel and create a wind load case using a wind definition in the catalog.