In the Building Model add-on, you can define the design properties of shear walls and deep beams for the respective add-ons.
![KB 001885 | Assessment of Story Drift Under Seismic Loads According to ASCE 7-22 and Building Model](/en/webimage/051645/3995306/im1.png?mw=512&hash=b8237709c4f30213fac51d86d32a42bddde72f03)
![KB 001860 | NBC 2020 Modal Response Spectrum Analysis and Base Shear Considerations in RFEM 6](/en/webimage/044604/3625998/Image_0.png?mw=512&hash=d87dc0138e82ba8cab464782074e5aa2b1fb3d3d)
![Building Model Add-on](/en/webimage/028467/3231624/1_en.png?mw=512&hash=fd421b3f2c85d04e163841c3e5995f948391dd20)
![Building Model Add-on](/en/webimage/025224/3154703/25224.png?mw=512&hash=f09d0c9ec35b2fb8547a76f0261b3b14941fdba3)
![Feature 002856 | Design Properties of Shear Walls and Deep Beams](/en/webimage/051698/3999792/1.png?mw=512&hash=9d7f6c198b6d4ae6ee8f2fa8bca75f85579e14c9)
In the Building Model add-on, you can define the design properties of shear walls and deep beams for the respective add-ons.
![Feature 002850 | Semi-Rigid Diaphragm for Modeling Stories](/en/webimage/051641/3994329/1.png?mw=512&hash=9d7f6c198b6d4ae6ee8f2fa8bca75f85579e14c9)
When modeling stories, you can use the "Semi-Rigid Diaphragm" option for slabs.
In principle, this modeling option selects the same approach as for the "Rigid Diaphragm" modeling of stories. In contrast to the rigid diaphragm, no nodal coupling is carried out from the center of gravity to each FE node. This way, it is possible to take into account the flexibility of the slab.
![Feature 002825 | Shear Walls and Deep Beams Consisting of Members](/en/webimage/050709/3925056/50709.png?mw=512&hash=8e57b70946dcc367584aee1ee2d82b3efafa652f)
When generating shear walls and deep beams, you can assign not only surfaces and cells, but also members.
![Feature 002818 | Neglecting Openings](/en/webimage/050330/3880440/1.png?mw=512&hash=9d7f6c198b6d4ae6ee8f2fa8bca75f85579e14c9)
You can neglect openings with a certain area in the building model calculation. This function can be activated in the global settings of the building stories. A warning message appears saying that the openings have been neglected.