RESEARCH OF MECHANICAL PROPERTIES OF THIN-WALLED STEEL LIGHTWEIGHT CONCRETE COMPOSITE SLAB

摘要

The composite slabs of thin-walled beams lightweight aggregate concrete is taken as the object of study,the mechanical properties of the composite slab before and after action of impact was experimentally studied and analyzed.Firstly,the static load tests of two composite slab specimens before and after the impact action was finished,and effects of factors such as constructional measures of prefabricated concrete panel and load types on the mechanical properties of the specimens have been analyzed.The results show that the thin-walled steel beams lightweight aggregate concrete composite slabs has better mechanical properties and higher bearing capacity.The main failure form is the longitudinal shear failure.The impression made on the surface of the prefabricated concrete panel may contribute to collaborative work of the main steel beam and concrete slab of the composite floor.