Full-fabricated floor slab assembled-type steel-concrete combined floor

Abstract

The invention discloses a full-fabricated floor slab assembled-type steel-concrete combined floor. The floor comprises an H-shaped steel beam and floor slabs which are disposed on the beam. One or more rows of connection studs or other connectors are disposed on the H-shaped steel beam; the two adjacent floor slabs in the steel beam-floor slab connection position are placed on the two sides of theupper flange of the steel beam; the sections, in the joint connection position on the beam, of the floor slabs are in a step shape; V-shaped notches are formed in the lower portions of the steps in the spliced joint connection positions of the floor slabs; shear reinforcements are put in the notches, in the two sides of the spliced joints, of the floor slabs; reinforcements on the upper portionsof the steps in the spliced joint connection positions of the floor slabs extend out, and lap joint reinforcements are placed to be connected with the extend-out reinforcements of the floor slabs on the two sides of the spliced joints; and UHPC or ECC concrete materials fill in the space between the floor slabs on the two sides of the spliced joints and the steel beam. According to the floor, thestud connectors, the V-shaped notches in the floor slabs, the shear reinforcements, the lap joint reinforcement structure and the post-cast UHPC or ECC concrete materials are skillfully utilized, andreliable connection between the floor slabs and the steel beam is formed.

Description

Technical field [0001] The invention relates to the field of construction, in particular to a fully prefabricated floor slab assembly type steel-concrete combined floor. Background technique [0002] Steel structure buildings have the unique advantages of being environmentally friendly, recyclable, and good seismic performance, and have outstanding features such as green buildings and industrialization during their full life cycle. Fabricated steel structure buildings will have great development prospects. Residential buildings account for a large proportion of the total construction. At present, steel structure houses in my country account for less than 1%. From the perspective of breaking through the bottleneck of the development of prefabricated steel structures, housing is one of the most important parts of the incremental market. [0003] The traditional steel-in-situ concrete floor slab has good mechanical performance and economy, but the cast-in-situ floor slab is faced wit...

AI Technical Summary

Problems solved by technology

[0003] The traditional steel-cast-in-place concrete floor has good mechanical performance and economy, but the cast-in-place floor slab faces the disadvantages of on-site formwork, steel bars and concrete pouring, and the construction is not fast enough, and it does not meet the requirements of building industrialization and green environmental protection. Development concept

In order to meet the needs of industrialized construction, the current floor forms of steel-concrete composite floors mainly include traditional truss-reinforced floor slabs, detachable bottom formwork truss-reinforced floor slabs, and laminated slab composite floors. However, after market verification, these products are all Not yet a mature floor slab solution for residential buildings

The traditional truss-reinforced floor deck has low consumer acceptance due to the exposed profiled steel plate; the construction process of the truss-bar floor deck with removable bottom form is complicated, the actual reusability of the bottom form is not high, and the cost waste is relatively high. Large; while the laminated slab composite floor requires an actual slab thickness greater than 150mm, which is not applicable in residential buildings where the slab thickness is generally 100-120mm

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