Hollow hidden beam plate structure formed by net pieces and supporting rebar cast-in-place concrete and process

Abstract

The invention discloses a hollow hidden beam plate structure formed by net pieces and supporting rebar cast-in-place concrete and a process. The hollow hidden beam plate structure comprises net boxes, a rebar net cloth body and a concrete filling body. The rebar net cloth body comprises an upper layer net cloth body and a lower layer net cloth body which are arranged in an up-down spaced mode. The net boxes are uniformly arranged between the upper layer net cloth body and the lower layer net cloth body at intervals. Outside space of the net boxes are filled with the concrete filling body extending toward the outer sides of the upper layer net cloth body and the lower layer net cloth body. The lower portion of the concrete filling body is supported and shaped through a supporting formwork. The concrete filling body is poured from bottom to top. Air mixed in the concrete filling body is extruded into the net boxes from the two sides of the net boxes and discharged upward through the tops of the net boxes till covers the net boxes, and the net boxes block concrete outside to form a whole hollow hidden beam plate. A hollow or open web structure is formed, supporting rebars takes part in force bearing of the structure to strengthen the building structure, accordingly the construction efficiency is improved, and the energy-saving and environmental-friendly requirement of construction is met.

Description

Technical field [0001] The invention relates to the technology of cast-in-place concrete hollow floor, in particular to a hollow concealed beam slab structure formed by mesh and supporting steel bars cast-in-place concrete. Background technique [0002] With the rapid development of the national economy, urban construction is also increasingly updated. The country's emphasis on environmental protection has made low-carbon, environmentally friendly, energy-saving and emission-reducing building models a top priority in the construction industry. The traditional beam-slab building model in the past can no longer meet the needs of modern urban construction. The scarcity of urban construction land makes the application, improvement and innovation of architectural design and materials particularly important. After long-term practice and summary, the application of cast-in-place concrete hollow floor technology has changed the traditional beam-slab construction model. The "I"-shaped str...

AI Technical Summary

Problems solved by technology

[0003] In the past application of cast-in-place concrete hollow floor technology, materials such as mandrel, box, block and filler must be used to fill in the upper and lower concrete protective layers to form a cavity to reduce the amount of concrete and the weight of the building. However, how to accurately Positioning, fixing and anti-floating often play a key role in the construction process. In the past, there were often large errors in construction and certain deviations from the design requirements, which affected the safety of the entire building. In order to ensure the positioning and anti-floating of the single mandrel The problem is that a large amount of construction force is often added during construction, which slows down the construction progress. The bottom is opened and connected to the scaffolding, and local floating is inevitable. The construction unit and construction unit often have lingering fears about this, resulting in "cast-in-place concrete hollow "Floor" technology is difficult to promote and difficult to construct in practical application

[0004] In the current cast-in-place concrete hollow floor technology, no matter organic or inorganic materials form hollow or solid mandrels of various shapes, boxes, blocks and filling materials, they are all inherently lightweight materials to replace hollow slabs The concrete part in the middle, so as to reduce the weight of the building, and form a hollow floor after cast-in-place to meet the use requirements of public buildings, but the original mandrel, box, block and filling materials need to be prefabricated in the factory Or after the customization is completed, it is sent to the construction site for fixed installation and cast-in-place use. However, during the production period of the manufacturer, no matter what kind of organic or inorganic materials are used, such as plastic materials, polystyrene, cement products, etc., in the production process, There are certain pollution and waste of resources in different degrees. Since the inherent materials form a closed hollow or solid body, they will cause public environmental pollution and waste in different degrees during handling, transportation, hoisting and fixed installation. Before construction, cast-in-place It is necessary to consider the displacement and floating conditions during the cast-in-place process, so as to add auxiliary anti-floating materials, such as anti-floating steel bars, iron wires, etc., and in order to ensure that the positioning and anti-floating conform to the requirements of the drawings, it is necessary to drill holes in the formwork to wear iron wires, and draw Fixed on the scaffold, because each monomer needs to be fixed, so the construction process is increased, and it is necessary to prevent the damage of the mandrel and the non-dense situation of the bottom due to the sealing and airtightness of the bottom, which increases the difficulty of construction; In any case, after the cast-in-place is fixed, there are certain displacements inside the hollow floor structure to varying degrees, which cannot ensure the design requirements and the structural stress of the overall building, especially when the formwork is punched when it is anti-floating. The bottom of the cast-in-place slab after demoulding will have multiple iron wires and wire holes due to the anti-floating fixation. The bottom surface needs to be polished twice, the exposed iron wires should be treated with antirust, and the iron wire holes need to be waterproofed and sealed. processing, increasing the construction process and construction costs

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