Thickness of Prefabricated Floor Slabs in Houses
Common thicknesses of prefabricated floor slabs in houses include 120mm and 150mm. Whether a thickness of 200mm is reasonable needs to be judged based on the building type. Prefabricated floor slabs are a type of floor slab that is manufactured in a factory in advance and then transported to the construction site for installation. The selection of their thickness requires a comprehensive consideration of factors such as building use, load requirements, and span size.
Thickness of Prefabricated Floor Slabs in Ordinary Residential Buildings
In ordinary residential buildings, the thickness of cast-in-place reinforced concrete floor slabs is usually in the range of 100 - 150 millimeters, and the situation with prefabricated floor slabs is similar. Common thicknesses of prefabricated floor slabs are 120mm and 150mm, which can meet the daily usage requirements of ordinary residential buildings. A prefabricated floor slab thickness of 200 millimeters (20cm) is relatively thick in ordinary residential buildings and may generally exceed normal requirements. This is because the live load in ordinary residential buildings is relatively small, mainly consisting of loads generated by human activities and furniture placement. Prefabricated floor slabs with a thickness of 120mm or 150mm usually meet the requirements in terms of strength and stiffness. However, if there are special circumstances in the residence, such as an extremely large floor span or overloading considered in the design, then using a prefabricated floor slab with a thickness of 200mm is also reasonable to ensure that the floor slab has sufficient load-bearing capacity and resistance to deformation.
Thickness of Prefabricated Floor Slabs in Commercial or Public Buildings
In commercial or public buildings such as shopping malls, office buildings, or schools, due to the high density of people and frequent activities in these places, the live load is relatively high, and the requirements for the load-bearing capacity and durability of the floor slabs are also higher. Therefore, a prefabricated floor slab thickness of 200mm is within the normal range in these buildings. Especially when the floor span is relatively large or the load requirements are high, a thicker floor slab can better bear the load, reduce floor deformation and cracks, and ensure the safety and normal use of the building structure. For example, in the atrium area of a large shopping mall, due to the open space and large floor span, and the need to bear the weight of a large number of people and goods, using a prefabricated floor slab with a thickness of 200mm can provide more reliable support.
