Live Floor Load For Business Occupancy
To the mercantile occupancy is considered the street floor.
Live floor load for business occupancy. To learn how to do this we must first understand the occupant load factor table table 1004 1 2 occupant load factor table 1004 1 2. This is a specialty case that includes capacity of the crane concentrated point loads where the wheels are in contact with crane rails and vertical lateral. Increasing the total weight on the floor to 4 480 pounds however results in a live load of 40 psf which is beyond the floor s load capacity. Estimate the net floor area by referring to the office blueprint.
Live loads for assembly spaces other than those described in this table shall be determined from the occupant load requirements as established by section 1004 of this code using the formula 1 000 net floor area per occupant but shall not be less than 50 psf nor more than 100 psf. 25 mm by25 mm hospital floors. With an evenly distributed live load of 30 psf which the tables show the floor is able to support the total weight on the floor would be about 3 360 pounds. Since the occupant load factor is for offices the standard factor is 100 square feet for all business use.
Relevant notes while the discussion above considers the process for nfpa 101 changes the international building code has similar provisions for the 2018 edition for business occupant load factors as well as definitions of net and gross floor areas table 1004 1 2 and chapter 2 definitions respectively. File and computer rooms shall be designed for heavier loads based on anticipated occupancy lobbies and first floor corridors offices corridors above first floor. Occupant load for life safety businesses and building owners must ensure that proper life safety measures are taken in their facilities to protect customers and employees. Finally asce 7 05 addresses crane loadings.
A distinction is made between normal floor surfaces and roof surfaces since the nature of the live loads for floors and roofs are different. Therefore the occupant load shall not be less than the number determined when dividing the floor area by the occupant load factor assigned to the function of the space. For any food court or other assembly use areas located in the mall that are not included as a portion of the gross leasable area of the mall building the occupant load is calculated based on the occupant load factor for that use as specified in table 7 3 1 2. If these are not available measure the area using a tape measure.