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Having modeled your structure and defined the parameters/loading to be applied, you are now ready to generate the member design forces. These are determined by performing a 3D analysis of the whole building. The pre and post analysis stages, along with the various applicable analysis options are fully described in the following sections: Model Options […]
For flat slab or transfer slab models, the slab will always be meshed to the perimeter outline of the column. There are 2 options how the analytical outline is formed, which is available under Building Analysis dialog > Analysis Options > Settings tab : 1. Use Finite Stiffness Rigid Links The rigid links can deflect […]
In order to consider concrete cracks that can be formed in the intersections, rigid zones may be reduced by a certain amount to calculate more realistic effects. ProtaStructure’s interpretation of rigid zones in member intersections can be summarized as follows: No Rigid zones (0%) When no rigid zones option is requested, all analysis programs calculate and […]
This article explains the differences between Building Analysis and FE Floor Analysis & which method is suited for different structural system. The fundamental differences of the analytical model created are shown in the below diagram. For detail explanation of the entire modeling process refer to : Modelling, Analysis & Design Flowchart Building Analysis without floor slab […]
Having modeled your structure and defined the parameters / loading to be applied, you are now ready to perform 3D building analysis of the whole building. To begin analysis, go to Analysis top ribbon > click "Building Analysis" to launch the analysis form. If there is no previous analysis, a red cross will be shown […]
Column Punching Check You can perform punching checks according to the selected concrete code using the “Column Punching Check” option located in the “Design” tab. The punching check calculations have been designed for flat slab structures and raft foundations. Therefore, the stiffness of any connecting beams (if they exist) are not considered in the calculations. The […]
Normally, a regular isotropic slab will exhibit a two-way behavior when analyzed with finite elements. This is usually sufficient for cast-in-place RC slabs. However, when it comes to one-way prefabricated, pretensioned or hollow core slabs, the one-way behavior must be accurately reflected to the analytical model. In finite element modeling of one-way slabs, the Orthotropic […]
To use mesh reinforcement / BRC for slab design, these are the steps : In Building Analysis menu > Edit Materials > Slabs > Pick a Fabric Rebar Click Rebar Diameters and choose the diameter to be used in the design Click Slab Analysis and Design > Slab Strip Design (Batch Mode)Perform a "Delete and Re-select All Bars” design. Please note that slab strips must be created before running Slab […]
Solid Slabs and Flat Slabs can be analysed and designed in ProtaStructure. General Procedure 1. Before designing the slabs, review the Slab Design Settings. 2. Slab reinforcements can be drawn automatically using “ Slab Strips ” function the modelling tab, cutting through slabs to be analysed and designed. Suitable Slab Strip type must be defined so […]
Design settings of slabs are explained in detail in the following sections. Slab Analysis and Design Procedure Analytical Strip (Moment Coefficient Method) Finite Element FE Strip Ribbed Slab Modelling & Design Procedure Column Punching Check Column Punching Checks with Finite Elements (ACI318 and IS456) How to Create Reports for Slab Loads How to use mesh reinforcement […]
