Analysis Of Load Transfer Rules And Performance Test Of The Multi-storey Formwork Supports System During The Period Of Construction

With the development of city construction and the improvement of engineeringconstruction speed, concrete structures have be made before the following concretestructures reach the design strength during construction.So, in that case,multi-storeyformwork supports system has been applied to make construction. However,due to thelack of knowledge of the system and comprehensive understanding of the forceperformance, engineering accident happen during the period of construction due tounsuitable configuration of multi-storey formwork supports system, removal offormwork supports at the wrong time or using wrong way. During construction, the deadload of new concrete and the construction load transmit to complete floor by themulti-storey formwork supports system.Concrete structure and support form atemporary bearing system.They bear the load of construction.The internal force ofconcrete structure and the internal force of support changes according to time andsupporting forms.Thus it can be seen that it is very important to research multi-storeyformwork supports system in the practical engineering.This paper study on multi-storey formwork supports system. In the theoreticalanalysis of the multi-storey formwork supports system based on, according to a test ofengineering of Xi’an,the paper get the internal force curves of each floor of rod and theinternal force curves of the floor of multi-storey formwork supports system during theconstruction.It is proved that multi-storey formwork supports system is a system that isalong with the time and the spatial change and develops unceasingly.At the same time,this paper research the load transmission and the support-structure interaction relationship.It is shown that the result agrees basically with the test result.The results ofthem have good consistency,and the cause of difference between finite element analysisand the test results is pointed out.At last,this paper describes a simplified method ofmulti-storey formwork supports system.By contrasting the test results and numericalsimulation results,the simplified method of multi-storey formwork supports system isfeasible in practical computation.The research achievement of the paper plays an important role in conducting thedesign and construction management of the multi-storey formwork supports system.