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Welcome to Jinwu Hollow Floor Network

信息咨询 Company Information Consulting

Jinwu hollow floor is a brand of Wuhan Jinwu New Building Material Co., Ltd. It is a professional manufacturer of hollow floor. The company was founded in 2009 and has 9 years of hollow floor processing experience. The company's products include: thin-walled square boxes, plaster mold boxes, honeycomb cores, thin-walled pipes, building mold shells, etc

Wuhan Jinwu New Building Material Co., Ltd.

Business Contact: Manager

Phone: 13367256165

Contact QQ: 281509502

E-mail: babsan@163.com

Company address: Next to the original fertilizer plant in Huangpi District, Wuhan City, Hubei Province

Construction process of thin-walled square box [with pictures]

薄壁方箱施工工艺测量放线装平板模放暗梁及BDF薄壁箱位置线-绑扎暗梁及板底筋,水电预埋肋间钢筋网片绑扎,安装BDF薄壁箱绑扎面筋检查,验收铺设操作马道,安混凝土输送泵管浇 Description: The thin-walled square box construction process measures the placement of flat beams and the position line of BDF thin-walled boxes-lashing of hidden beams and bottom ribs, hydro-electricity embedded inter-reinforced steel mesh banding, installation of BDF thin-walled boxes, gluten inspection, Acceptance of paving operation roads, concrete pumping pipes

Construction process of thin-walled square box

Measure and pay the line → install the plate mold → place the dark beam and BDF thin-wall box position line-> bind the dark beam and the bottom of the board, hydro-electric pre-embedded → bind the inter-ribbed steel mesh, install the BDF thin-wall box → bind the gluten → check, Acceptance → Laying operation roads, installing concrete pump pipes → pouring concrete → concrete curing → demolition bottom mold

Construction process of thin-walled square box

Construction technology of cast-in-situ hollow floor of plastic thin-walled square box

1 Introduction

In recent years, with the continuous advancement of new building materials, many new building materials have begun to emerge. Plastic thin-walled square box (Figure 1.1) is a new type of high-efficiency energy-saving building material popularized in China.The plastic thin-walled square box cast-in-situ hollow floor is a lightweight plastic thin-walled square box, which is arranged in a regular pattern in the middle of the floor and replaces the part of the solid floor that does not participate in the structure. The concrete is stressed to form a cavity, so that it forms a stress structure of the cavity and the hidden ribs. Not only reduces the weight of the floor, but also maintains the stiffness and strength of the floor. The floor slab adopting this technology forms a load-bearing structure combining two-way rib beams and concealed beams (bright beams) inside the floor slab. Using this technology, the solid parts of the reinforced concrete above and below, the form of cross-section expression is "work" type structure, forming a reasonable structure. Structural system, the overall shape of the floor is good after molding, so that the floor can fully meet the requirements of the reinforced concrete design specifications in terms of strength, deformation, displacement, etc., and achieve long-span without concealed beams, improve the building's use headroom, and improve the owner A comfortable event space.

Figure 1.1 Plastic thin-walled square box

Plastic thin-walled square box cast-in-situ hollow floor slabs are used to increase the clearance height, save the vertical member (wall, column) cross-section of the building, the amount of reinforced concrete, and the insulation decoration area of the external wall; excellent sound insulation performance, reduce noise transmission between upper and lower floors; heat insulation performance Excellent, reduce air conditioning energy consumption, reduce emissions, save energy; simple construction, fast speed, save construction time, reduce project cost. The plastic thin-walled square box has a mass of less than 2kg, which can be stacked and transported and stacked with a small footprint, which saves work space on the construction site, and can be transported vertically to the construction after assembly in the storage area

The floor can also be stacked and hoisted to the construction floor and assembled after assembly. The operation is flexible, reducing labor intensity and saving labor and machinery costs. Because the plastic thin-walled square box is made of engineering plastic, even if it is damaged during construction, it can be recycled and reused. In theory, it achieves "zero loss" in construction, which solves the problem of material waste.

But the reality is: due to the material itself is a new material, coupled with the immature construction technology, construction companies and design institutes and other relevant material application departments of this lack of understanding and lack of knowledge, affecting the promotion of the material.

The classroom floor of the teaching building of the XX Engineering Vocational and Technical College constructed by our company uses plastic thin-walled square box cast-in-situ hollow floor slabs. The company's technology center organized related technical staff to carry out the construction process of the plastic thin-walled square box cast-in-situ hollow floor slabs. Special technical research has developed a set of more elaborate construction processes, and in the later stages, through the practical application of multiple projects, the technology has been continuously summarized and improved, and finally the "Construction method for cast-in-situ hollow floor slabs of plastic thin-walled square boxes" has been formed.

2 Construction method characteristics

2.1 Compared with the traditional solid reinforced concrete floor slab, the structural system is more reasonable, and the overall shape of the floor slab is good, so that the floor slab can fully meet the requirements of the reinforced concrete design specifications in terms of strength, deformation and displacement, and achieve long-span without concealed beams Increase the use of building headroom.

2.2 This method is more novel in the processing of nodes than traditional construction technology, and the construction is more convenient.

2.3 The construction method not only saves the amount of floor concrete, but also saves the building's vertical member concrete wall and concrete column material by reducing the weight of the building. The construction environment is greatly improved than traditional construction, and it is more environmentally friendly and green.

2.4 In the construction process, plastic thin-walled square boxes can be stacked and stacked, occupying small space on the site, which is conducive to civilized construction. The single-plastic thin-walled square boxes have low quality, low labor intensity, and improved efficiency.

2.5 The use of plastic thin-walled square box cast-in-situ hollow floor slabs has excellent heat insulation performance, can save energy and reduce emissions, and is environmentally friendly.

2.6 The plastic thin-walled square box is made of engineering plastic. If it is damaged during construction, it can be recycled and reused. In theory, it achieves "zero loss" in construction, which solves the problem of material waste.

3 Application

This construction method is applicable to the large span (4 meters and above) cast-in-situ floor floors of public buildings in civil buildings.

4 Process principle

The main features of this construction method include the bundling and installation of the reinforcement mesh at the bottom of the plastic thin-walled square box.

Pre-buried; discharge of horseshoe tendons at the bottom of plastic thin-walled square boxes, construction of plastic thin-walled square boxes, laying, discharge installation and fixing, anti-floating steel reinforcement lashing; bundling of the top steel mesh at the top of plastic thin-walled square boxes.

5 construction process and operation points

5.1 Construction process flow shown in Figure 5.1-1

Hollow square box assembly, beam and slab formwork construction

Pay-off, positioning of plastic thin-walled square box and pre-buried water wire tube box

Installation and acceptance of the bottom reinforcement, pads, and bottom reinforcement

Embedded water electric conduit and vertical through-sleeve

Installing a plastic thin-walled box box stool

The cable discharges the plastic thin-walled square box, and the top of the box is used for anti-floating anchoring and acceptance.

Install surface rebars and lay construction tracks

Pouring concrete, adjusting thin plastic square box and steel

After the curing and strength requirements are met, the mold is disassembled.

5.1-1 Construction flow chart of cast-in-situ hollow floor slab of plastic thin-walled square box

5.2 Operation points

5.2.1 Pre-construction preparation for cast-in-situ hollow floor slabs of plastic thin-walled square boxes

1.After the plastic thin-walled square box enters the construction site, the on-site acceptance of the model, size and quantity of the thin-walled square box shall be in accordance with the design documents. The acceptance content shall be the certificate of entry and inspection report of the thin-walled square box. Submit the compressive strength retest, and it can be used for engineering entities after the retest.

2. The stacking site should be solid, flat and clean. The stacking height of plastic thin-walled square boxes should not exceed 1.6 meters. After stacking, there should be a sign and a clear warning to prohibit people from climbing up and down.

3. Prepare hand drills, reinforcing bar hooks, iron wires (8 #, 22 #) and other tools required for construction before assembly.

作者:武汉进武 浏览量:87次 Time: 2019-04-10 01:10 Author: Wuhan advanced weapons Views: 87

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