CN116378356A - A construction method for continuous construction of a large-area floor with separate warehouse joints - Google Patents

Abstract

The invention discloses a method for constructing a dividing seam of a large-area terrace, which comprises the steps of firstly planning the position of the dividing seam according to the size and the area of a terrace dividing block; arranging a terrace thickening layer at the position of a dividing seam of the terrace, and alternately paving thickened layer reinforcing bars in the terrace thickening layer and a terrace region; transverse ribs and longitudinal ribs are arranged on the terrace and the terrace thickening layer in a staggered mode; after the construction of the terrace thickening layer is completed, a pair of channel steels with the same thickness as the terrace is adopted to separate the terrace; the channel steel is fixed through a steel bar diagonal brace; the flatness and straightness of the channel steel are adjusted to ensure the flatness and the corner straightness of the terrace concrete; after the channel steel is arranged at the dividing seams, the adjacent concrete of the dividing seams can realize continuous pouring; and after pouring, the gap between the sub-warehouse joints is filled with flexible high-strength epoxy resin. According to the invention, the channel steel is wrapped at the dividing seam, so that the corner damage at the dividing junction of the terrace is avoided, and the service life of terrace concrete is prolonged.

Description

A construction method for continuous construction of a large-area floor with separate warehouse joints

technical field

The invention belongs to the technical field of ground engineering construction in building construction, and in particular relates to a construction method for sub-storage joints that can be continuously constructed on large-area floors.

Background technique

With the rapid development of emerging industries such as new energy, medicine, biotechnology, and prefabricated construction in recent years, large-area floors are widely used in construction fields such as industrial plants, parking buildings, and commercial plazas. Large-area floors have high requirements for crack control and flatness. It is particularly important to take effective technical measures during the construction process to avoid ground cracks, ensure flatness, and meet functional requirements.

In view of the problem that large-area floor concrete is prone to temperature shrinkage cracks, the traditional technology mainly adopts the method of extending the interval time or "jumping warehouse construction", using formwork to separate large-area floors, pouring in separate warehouses, and waiting for the concrete to cure for a period of time Then pour the concrete of the adjacent cells; the use of formwork not only cannot be used for continuous construction, but also easily causes damage to the corners during the form removal process. It is difficult to clean up, and there are still construction joints between the first poured concrete and the second poured concrete between adjacent storage cells; there are shortcomings such as affecting the quality of concrete molding, increasing labor costs, and long construction periods.

The application number is "201910738222 .6" and the name is "a construction method for construction engineering floor". The strip section has disadvantages such as corner damage and construction joints when the formwork is removed.

Contents of the invention

Based on the deficiencies of the above-mentioned prior art, the purpose of the present invention is to provide a continuous construction method for large-area floors with sub-storage joints. The concrete structure of the floor is continuous without formwork removal, which can avoid cracks caused by temperature changes between the first poured concrete and the latter poured concrete.

In order to achieve the above object, the present invention provides the following technical proposal: a construction method for continuous construction of a large-area floor with separate warehouse joints, the steps are as follows:

Step 1: According to the floor block size and area size, plan the position of the warehouse joint;

Step 2: Set the floor thickening layer at the position of the sub-storey joint of the floor, and lay the reinforcement of the thickening layer alternately in the floor thickening layer and the floor area; staggered arrangement on the floor and the floor thickening layer There are transverse ribs and longitudinal ribs;

Step 3: After the construction of the thickening layer of the floor is completed, a pair of channel steel with the same thickness as the floor is used to separate the floor; the channel steel is fixed by a steel bar brace;

Step 4: Adjust the flatness and straightness of the channel steel to ensure the flatness and straightness of the floor concrete;

Step 5: After the channel steel is set in the joints of the warehouses, the concrete of the adjacent warehouses can be poured continuously; after the pouring is completed, the joints between the warehouses are filled with flexible high-strength epoxy resin to reduce the binding force between them.

Further, leveling is carried out with mortar between the floor and the channel steel.

Further, the steel bar diagonal brace is composed of a diagonal brace and two support rods, and the two support rods are arranged in parallel, one of which is vertically arranged on one side of the channel steel, and the other vertically arranged on the thickened floor. On the first floor, the oblique braces are fixed obliquely between the two support rods.

Further, the reinforcement of the thickened layer has a Z-shaped structure, and the two ends of the reinforcement of the thickened layer are provided with fixing hooks.

Further, fixing hooks are provided at both ends of the transverse rib.

On the one hand, the present invention ensures the flatness and straightness of the floor concrete by adjusting the flatness and straightness of the channel steel; Damage to the corners of the floor and prolong the service life of the floor concrete. The invention can ensure the quality of concrete molding, save costs and greatly shorten the construction period.

Description of drawings

Fig. 1 is the position diagram of the sub-storey seam of the present invention;

Figure 2 is a diagram of the connection relationship between the steel bar brace and the channel steel.

Implementation

In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

Those skilled in the art will understand that the following examples are only for illustrating the present invention and should not be considered as limiting the scope of the present invention. If no specific technology, connection relationship or condition is indicated in the embodiment, it shall be carried out according to the technology, connection relationship and condition described in the literature in this field or according to the product specification. The materials, instruments or equipment used are not indicated by the manufacturer, and they are all conventional products that can be obtained through purchase.

As shown in Fig. 1 and Fig. 2, the present invention provides a continuous construction method for sub-storage joints on large-area floors. The steps are as follows:

Step 1: According to the floor block size and area size, plan the position of the warehouse joint in advance;

Step 2: Set the floor thickening layer 1 at the position of the sub-storage joint of the floor 3 (the floor thickening layer 1 is located below the sub-storage joint), and lay the thickening layer 1 and the floor 3 alternately in the area of the floor thickening layer 1 Thick layer reinforcement 2; the reinforcement and thickness of the thickened layer are the same as that of the floor to ensure the continuity of the floor structure; horizontal reinforcement 4 and longitudinal reinforcement 5 are arranged alternately on the floor 3 and the thickened layer 1 of the floor;

Step 3: After the construction of the floor thickening layer 1 is completed, a pair of channel steel 6 with the same thickness as the floor 3 is used to separate the floor 3 (the channel steel is symmetrically arranged), and the floor 3 and the channel steel 6 are pre-installed. leveling by mortar 10; the channel steel 6 is fixed by the steel bar brace 8, which can play a supporting role when pouring concrete, and at the same time can be connected with the concrete as a whole to avoid emptying; It can avoid damage to the corners at the junction of the floor sub-warehouses, prolong the service life of the floor concrete, good molding effect, beautiful and practical;

Step 4: Adjust the flatness and straightness of the channel steel 6 to ensure the flatness and straightness of the floor concrete;

Step 5: After the channel steel is set in the joints of the warehouses, the concrete of the adjacent warehouses can be poured continuously; after the pouring is completed, the joints of the warehouses are filled with flexible high-strength epoxy resin 7 to reduce the binding force between them. While the flat structure is continuous, it can effectively reduce the cracks caused by the strain of the concrete.

Specifically, the reinforced diagonal brace 8 is composed of a diagonal brace and two support rods, and the two support rods are arranged in parallel, one of which is vertically arranged on the side of the channel steel 6, and the other vertically arranged on the floor On the thickened layer 1, the oblique braces are fixed obliquely between the two support rods.

To further optimize the scheme, the thickened layer reinforcement 2 is a Z-shaped structure, and the two ends of the thickened layer reinforcement 2 are provided with fixed hooks 9; the two ends of the transverse reinforcement 4 are also provided with fixed hooks 9, and the fixed hooks 9 are hooked on The longitudinal ribs increase the overall stability.

The above description is only a preferred embodiment of the present invention, the present invention is not limited to the above embodiment, there may be local minor structural changes during the implementation process, if the various changes or modifications of the present invention do not depart from the spirit of the present invention and scope, and belong to the claims and equivalent technical scope of the present invention, the present invention also intends to include these changes and modifications.

Claims (5)

1. A kind of sub-cang joint construction method that large-area floor can be constructed continuously, it is characterized in that, the steps are as follows: Step 1: According to the floor block size and area size, plan the position of the warehouse joint; Step 2: Set the floor thickening layer (1) at the position of the sub-storey joint of the floor (3), and lay the reinforcement of the thickening layer alternately in the area of the floor thickening layer (1) and the floor (3) ( 2); transverse ribs (4) and longitudinal ribs (5) are alternately arranged on the floor (3) and the floor thickening layer (1); Step 3: After the construction of the floor thickening layer (1) is completed, use a pair of channel steel (6) with the same thickness as the floor (3) to separate the floor (3); Support (8) is fixed; Step 4: Adjust the flatness and straightness of the channel steel (6) to ensure the flatness and straightness of the corners of the floor concrete; Step 5: After the channel steel is set in the joints of the warehouses, the concrete of the adjacent warehouses can be poured continuously; after the pouring is completed, the joints of the warehouses are filled with flexible high-strength epoxy resin (7) to reduce the binding force between them. 2. The construction method for continuous construction of a large-area floor according to claim 1, characterized in that, leveling is carried out between the floor (3) and the channel steel (6) by mortar (10) . 3. A construction method for continuous construction of large-area floor joints according to claim 1, characterized in that the reinforced diagonal brace (8) is composed of a diagonal brace and two support rods, and the two support rods are parallel to each other. Setting, one of the support rods is vertically arranged on one side of the channel steel (6), the other support rod is vertically arranged on the floor thickening layer (1), and the diagonal brace is fixed obliquely between the two support rods. 4. A construction method for continuous construction of large-area floor joints according to claim 1, characterized in that the reinforcement of the thickened layer (2) is a Z-shaped structure, and the reinforcement of the thickened layer ( 2) Fixed hooks (9) are provided at both ends. 5. The construction method for continuous construction of a large-area floor with sub-storage joints according to claim 1, characterized in that, fixed hooks (9) are provided at both ends of the transverse ribs (4).

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