A prefabricated concrete hollow composite floor slab and its manufacturing method

Abstract

The invention discloses an assembled type concrete hollow composite floor slab and manufacturing method thereof and belongs to the field of construction engineering. The assembled type concrete hollow composite floor slab comprises a prefabricated concrete hollow batten, cast-in-place concrete, a bottom steel bar in a hollow hole, a hogging moment steel bar in a hollow hole, a bottom steel bar at a seam of the batten, a top hogging moment steel bar at a seam of the batten and neat cement. The prefabricated concrete hollow batten comprises a bottom steel bar, a hogging moment steel bar, an erected steel bar, a transverse hollow hole, an end rabbet groove and prefabricated concrete. The short span direction of the slab is taken as the length direction of the prefabricated concrete hollow batten, and the assembled type concrete hollow composite floor slab is designed according to the current 'concrete structure design standards' GB50010 and comprises the prefabricated concrete hollow batten. The assembled type concrete hollow composite floor slab and manufacturing method thereof are simple in production process and equipment, the quality of the prefabricated batten is easily guaranteed, and the prefabricated batten is high in rigidity and strength and convenient to convey, only a few construction procedures of the slab are needed, and the assembled type concrete hollow composite floor slab is high in construction efficiency, good in appearance quality, flat and clean, improves the work environment and reduces the engineering construction cost.

Description

technical field [0001] The invention belongs to the field of construction engineering, in particular to an assembled concrete hollow composite floor slab and a manufacturing method thereof. Background technique [0002] Concrete laminated slabs in construction projects are currently widely used in the national standard design atlas "Prestressed Concrete Laminated Slabs" (06SG439-1) edited by the China Building Standard Design and Research Institute. 50mm and 60mm thick prestressed concrete laminated slabs, which The rigidity of the seed slab is poor, requiring additional support during the construction process, and the support is relatively dense, which increases the construction cost, and the prefabricated components are easily damaged during transportation; the Hunan Provincial Standard Design Atlas "PK Prestressed concrete laminated slab" (2005 Xiang JG / B-001), is a relatively good laminated slab. The inverted T-shaped section increases the rigidity of the laminated slab,...

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Problems solved by technology

[0002] Concrete laminated slabs in construction projects are currently widely used in the national standard design atlas "Prestressed Concrete Laminated Slabs" (06SG439-1) edited by the China Building Standard Design and Research Institute. 50mm and 60mm thick prestressed concrete laminated slabs, which The rigidity of the seed slab is poor, requiring additional support during the construction process, and the support is relatively dense, which increases the construction cost, and the prefabricated components are easily damaged during transportation; the Hunan Provincial Standard Design Atlas "PK Prestressed concrete laminated slab" (2005 Xiang JG / B-001), is a relatively good laminated slab. The inverted T-shaped section increases the rigidity of the laminated slab, but the production process is slightly complicated, and the top surface of the laminated slab is leveled on site. The quality is not good; the construction industry standard of the People's Republic of China "Reinforced Truss Floor Deck" (JG / T368-2012), this kind of floor is compressed by the top steel bars, which significantly increases the amount of steel bars and increases the construction cost

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