Novel prefabricated assembly concrete porous floor and manufacturing method thereof

Abstract

The invention discloses a novel prefabricated assembly concrete porous floor. The novel prefabricated assembly concrete porous floor comprises left plates, middle plates and right plates which are connected in sequence, and grouting holes are formed in the left plates, the middle plates and the right plates. One side of each left plate is provided with an upper left rabbet, one side of each middle plate is provided with a lower middle rabbet, the other side of each middle plate is provided with an upper middle rabbet, and one side of each right plate is provided with a lower right rabbet. The middle lower rabbets are matched with the upper left rabbets, the upper middle rabbets are matched with the lower right rabbets, and the corresponding grouting holes are formed in the upper left rabbets and the upper middle rabbets. The rabbets are arranged at the two ends of the concrete porous floor, the floors are connected in sequence through vertical cooperation between the rabbets, the requirement for the integrality of the floors is met, the adaptability of the floors is improved, building standardization is achieved, and the phenomena that gaps of exiting porous floors are large, and consequently sedimentation or non-uniform deformation leads to floor cracking, water leakage and the like are avoided. A better assembly floor form is provided for existing buildings, and good social benefits and economic benefits are achieved.

Description

technical field [0001] The invention relates to the field of building industrialization, in particular to a novel prefabricated concrete porous floor slab and a manufacturing method thereof. Background technique [0002] In recent years, under the background that the country has vigorously advocated the industrialization of modern buildings, my country's prefabricated buildings have begun to appear on a large scale, with standardized architectural design, serialization of building parts, and factory production of components have developed rapidly. [0003] Most of the original prefabricated concrete porous floors are monolithic, and the cross-section is trapezoidal. The gap between the two porous floors and the surface layer are poured with plain concrete to enhance the integrity of the floor. However, due to the structure and construction of the prefabricated slab, it will The following technical problems and defects arise: [0004] 1. The bonding between plain concrete an...

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Problems solved by technology

[0004] 1. The bonding between plain concrete and prefabricated panels is not good, and the surface layer often falls off;

[0005] 2. The fluidity of plain concrete is poor, and the fullness between the slab joints is insufficient. When the building is unevenly settled or deformed, it is easy to cause floor cracking and water leakage;

[0006] 3. Plain concrete is easy to bulge and fall off. It is often damaged during the decoration stage, losing its original design function, resulting in poor overall seismic performance of the floor slab and easy to fall off during an earthquake.

[0008] (1) Poor integrity

[0009] The precast concrete structure is assembled by prefabricated components at the construction site. Without careful design of the assembled joints and the construction quality cannot be guaranteed, it is easy to have poor structural integrity. Some precast concrete structures were found in some earthquakes in the past Severe structural damage, resulting in serious casualties and property losses

[0010] (2) The design is more difficult

[0011] Because precast concrete technology is not mature enough, the structure of precast concrete joints is relatively complex, and the design is relatively difficult. Structural designers are only familiar with the design methods of cast-in-place concrete structures, and are relatively unfamiliar with the design methods and characteristics of precast concrete structures. Relevant design codes and standards for concrete structures are relatively rare

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