| With the development of construction technology and the acceleration of the project progress, it has been the trend that concrete should be made before the following concrete structures reach the design strength. Thus, multi-storey formwork supports system has been applied to make construction more efficient, the construction period is one story per week generally. But collapses of supports system and cracks of floor happen during the period of construction because of unsuitable configuration of supports system, incorrect removal of formwork supports and curing of early-age concrete. Therefore, the research of multi-storey formwork supports system is significant to the safety of construction and the reduction of construction period.In the multi-storey formwork supports system, the dead load of new concrete and the load should be transferred to following floor by formwork supports. The construction load will be bore by time-dependent concrete structure and formwork supports system in every period. The concrete performance of this time-dependent system have relations with the construction period, that's to say, the inner force varies from time to time.The paper introduces the composition of multi-storey formwork supports system and compared with different supports systems. The paper analyzes the improvement of formwork supports system and sums up the way to make the whole project optimized.Based on the analysis of multi-storey formwork supports system, the ANASYS numeric analysis model is proposed and the construction process of concrete building is simulated. The paper obtains the inner force curves of multi-storey formwork supports system in one construction period and make sure the system is changing with the time. At the same time, basing on the support-structure interaction relationship and the load transmission, the paper reveals the effects of the removal time on the bearing capacity of structure. Finally, paper proposes the design model of...
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