Research On Method Of Calculation And Analyzing On Slab Transfer Floor's Formworks And Supporting System

Slab transform floor of the high-layer building is an important part of building structure. This kind of structure has big spans and can support high vertical loads, so reinforcing bar distribution is dense, the perfusion quantity of concrete is large, it is difficulty to set up construction joints and the demands of formwork and bent system are high. These are emphases and difficulty in building construction. Formwork supporting system is pivotal, because it has direct relation to the quality of engineering construction and its cost is very high. It is an urgent and important work that formwork supporting system is designed and computed accurately.With the design example of the 2.2m thickness slab transfer floor of a high-rise building structure, this paper calculates the inner force and deformation of its formworks and supporting system by experiential algorithm and finite element software-ANSYS. The following conclusions are obtained after results is analyzed and compared with each other.1. On the inner force and deformation the lower formworks and the inner force of the vertical formworks, the result calculated by ANSYS is much different from the result calculated by experiential algorithm, because the model of experiential algorithm is too simple.2. It show safe coefficient of formworks and supporting system is high and conservative that the numerical value of calculating is much smaller than the maximum of criterion. In engineering construction, the supporting system can be simplified in order to reduce workload and cost and increase efficiency.3. The inner force and deformation of reinforcing steel bolt of the vertical and the lower formworks are bigger than others, so they are weak points of the whole system and should be paid more attention and reinforced in engineering construction.