Abstract：
During construction of main concrete structure, saving time in floor formwork dismantlement could accelerate turnover of materials and equipment and reduce investment in floor formwork and support tools. Implementary aluminium alloy supporting slab with reliable supporting performance, independent erection and convenient dismantlement could reduce investment in materials and tools, and save construction cost, because all formwork supporting tools other than the supporting slab could be dismantled 3~4 days after floor slab concrete pouring when the concrete strength reached more than 50% of the design strength.
