The fine aggregate concrete non-removable bottom formwork steel truss floor slab has the characteristics of fast construction speed, strong overall rigidity, excellent seismic performance, guaranteed construction quality, high prefabrication rate, economy and environmental friendliness compared with cast-in-place floor slabs. When calculating the steel truss concrete floor slab, it is equivalent to the design theory of ordinary cast-in-place concrete, but its steel truss force mode is more reasonable, can provide greater rigidity, and has the same bidirectional rigidity. The steel truss bottom formwork is flat, and the steel truss web bars improve the floor slab's force, with the best seismic performance. The construction of traditional cast-in-place concrete floor slabs is cumbersome, requiring the erection of full scaffolding and formwork systems, large on-site steel bar binding, removal of formwork and scaffolding, slow construction speed, and affecting the construction period. The non-removable bottom formwork steel truss floor slab is factory-produced, and the factory completes more than 75% of the on-site steel bar work of the traditional floor slab at one time. On-site support systems and floor slab formwork are reduced, most of the steel bars are completed in the factory, and the on-site steel bar binding is reduced, which can significantly speed up the construction period and save on-site operation area and material storage space.
