Design Floor Cantilever Floor Diaphragm

Allow small one story structures to assume rigid diaphragm.

Design floor cantilever floor diaphragm. In seismic design rigidity means relative rigidity. Of importance is the in plane rigidity of the diaphragm. Structures using wood frame shear walls or wood frame diaphragms to resist wind seismic or other lateral loads shall be designed and constructed in accordance with af pa sdpws and the applicable provisions of sections 2305 2306 and 2307. These construction systems can be used when designing a building for lateral loads such as those generated by wind or earthquakes.

What are the available methods of distributing torsional forces into the diaphragm. The term diaphragm is usually applied to roofs and floors. Cantilevered diaphragm length limited to 35 replaces 25 which could be exceeded where deflections can be tolerated. Section 2305 general design requirements for lateral force resisting systems 2305 1 general.

Double cantilever diaphragm and help engineers better understand the code and standards issues associated with these types of structures. What is the deflection equation for open front cantilever diaphragms. How is diaphragm flexibility defined for open front cantilever diaphragms vs. Just as the floor or roof is checked for vertical load capacity it is considered a diaphragm in the plane of the floor and check for shear when designing the lateral force resisting system.

Torsionally irregular requirements of 4 2 5 1 still apply. Do shear walls located along diaphragm chord lines affect the diaphragm. Generally there are two different types of diaphragms. Exclude small cantilevered conditions 6ft from open front provisions.

A shear wall however is a vertical cantilevered diaphragm. Flexible frames rigid walls an important characteristic of diaphragms is flexibility or its opposite rigidity. Asce 7 16 figure 12 3 1.