Shear wall structure with reserved pressure groove for laying pipeline and construction method

Abstract

The invention relates to the technical field of building construction, in particular to a shear wall structure with reserved pressure grooves for laying pipelines and a construction method.The construction method includes the steps that the grooving position, size and depth are determined on the basis of a drawing, steel bars are bound according to a shear wall structure bulk sample, and paint marking and positioning are conducted according to the grooving position; a formwork is installed on the basis of the grooving position, and concrete is poured to form a shear wall pipeline groove; the pipelines are laid in the shear wall pipeline grooves and fixed through clamping pipes and expansion bolts; according to the method, a pressing groove is reserved in the shear wall in advance, conditions are reserved for later-stage pipeline installation, grooving in the shear wall or thickening of the thickness of a face wall during later-stage pipeline laying is avoided, compared with a traditional pipeline laying mode, the construction period is greatly shortened, the construction cost is reduced, and the construction efficiency is improved. And the grooving construction cost is also reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of construction, and particularly relates to a shear wall structure for reserved grooving and laying pipelines and a construction method thereof. Background Art

[0002] For many projects, the back of sanitary appliances in the bathroom is mostly a shear wall, which brings trouble to laying the water supply branch pipes of the sanitary appliances. The water supply branch pipes in the bathroom are usually installed concealed. When encountering the situation of laying on the shear wall, there are usually two ways to lay the pipes: One common method is to increase the thickness of the surface layer between the shear wall and the bathroom wall tiles and directly lay the water supply branch pipes between the surface layer and the shear wall; Another common method is to groove the shear wall on site where the pipes are to be laid; This method is "barbaric and rough" and is a common technology in on-site construction.

[0003] However, the first method will increase the plastering thickness and easily cause the phenomenon of "hollow drum" of the tiles at the position where the pipes are laid; The second method not only damages the steel bars in the shear wall and has potential safety hazards, but also has high technical requirements and great difficulty for grooving construction. The construction cost and construction period for large-area grooving construction also increase accordingly. Summary of the Invention

[0004] The purpose of the present invention is to provide a shear wall structure for reserved grooving and laying pipelines and a construction method thereof, aiming to reserve a groove on the shear wall to avoid grooving the shear wall or thickening the wall surface thickness when laying pipelines later.

[0005] To achieve the above purpose, in the first aspect, the present invention provides a construction method for a shear wall structure for reserved grooving and laying pipelines, including the following steps:

[0006] Based on the drawings, determine the position, size and depth of the groove, tie the steel bars according to the large sample of the shear wall structure, and make paint markings for positioning according to the groove position;

[0007] Install templates based on the groove position and pour concrete to form a pipeline groove in the shear wall;

[0008] Lay the pipelines in the pipeline groove of the shear wall and fix them with pipe clamps and expansion bolts;

[0009] Fill and seal the gap between the pipelines and the pipeline groove of the shear wall and make plastering treatment.

[0010] Among them, the size and depth of the groove are both 50 mm, and the tying of the steel bars includes groove-retaining steel bars and reinforcement steel bars.

[0011] Among them, the specific method of laying the pipelines in the pipeline groove of the shear wall and fixing them with pipe clamps and expansion bolts:

[0012] Check the size of the shear wall pipe groove, clean the debris and dust in the shear wall pipe groove, and ensure that the installation surface is flat;

[0013] Use pipe clamps and expansion bolts to fix them in the shear wall pipe grooves, and perform water pressure tests to ensure there is no leakage.

[0014] The specific method of filling the gap between the closed pipe and the shear wall pipe groove and performing the plastering treatment is as follows:

[0015] Filling the gap between the closed pipe and the shear wall pipe groove;

[0016] Use a nail gun to fix the mortar mesh on the base layer, ensure that it is flat and wrinkle-free, and compact the overlap of the mortar mesh with mortar;

[0017] Use a spatula to evenly apply the mortar on the mortar net, ensuring that the mortar net is completely embedded in the mortar. After the mortar is slightly dry, evenly apply the mortar again to ensure a smooth surface;

[0018] Scrape the mortar surface with a scraper to ensure flatness, and cover the mortar with a damp cloth or plastic film.

[0019] In a second aspect, the present invention further provides a shear wall structure with a reserved groove for laying pipelines, which is applied to the shear wall structure construction method with a reserved groove for laying pipelines as described in the first aspect above.

[0020] The present invention provides a shear wall structure construction method for laying pipelines with reserved grooves, which determines the position, size and depth of the grooves based on the drawings, ties the steel bars according to the shear wall structure template, and paints and marks the grooves according to the groove positions; installs the template based on the groove positions, and pours concrete to form the shear wall pipeline grooves; lays the pipelines in the shear wall pipeline grooves, and fixes them with clamps and expansion bolts; fills the gap between the closed pipeline and the shear wall pipeline grooves, and performs plastering. This method reserves grooves on the shear wall in advance, reserves good conditions for the later pipeline installation, avoids grooving on the shear wall or thickening the wall when laying pipelines in the later stage, and greatly shortens the construction period and reduces the cost of grooving construction compared to the traditional pipeline laying method. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1It is a schematic diagram of the water supply pipeline routing in the reserved grooved toilet.

[0023] Figure 2 It is Figure 1 An enlarged view of detail A.

[0024] Figure 3 It is a large-scale drawing of the groove left in the shear wall edge member.

[0025] Figure 4 It is an elevation view of the groove left in the shear wall edge member.

[0026] Figure 5 It is the first large-scale drawing of the groove left in the shear wall.

[0027] Figure 6 It is the first elevation view of the groove left in the shear wall.

[0028] Figure 7 It is the second large-scale drawing of the groove left in the shear wall.

[0029] Figure 8 It is the second elevation view of the groove left in the shear wall.

[0030] Figure 9 It is a flow chart of a construction method for a shear wall structure with reserved grooves for laying pipelines provided by the present invention.

[0031] Figure 10 It is a flow chart of the specific method of laying the pipeline in the pipeline groove of the shear wall and fixing it with pipe clamps and expansion bolts.

[0032] Figure 11 It is a flow chart of the specific method of filling and closing the gap between the pipeline and the pipeline groove of the shear wall and making plastering treatment. Detailed implementation mode

[0033] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present invention, but should not be construed as limiting the present invention.

[0034] Please refer to Figures 1 to 5 , in the first aspect, the present invention provides a construction method for a shear wall structure with reserved grooves for laying pipelines, including the following steps:

[0035] S1 Determine the position, size and depth of the groove based on the drawings, bind the steel bars according to the large-scale drawing of the shear wall structure, and perform paint marking positioning according to the groove position;

[0036] In the embodiment of the present invention, the size and depth of the groove are both 50 mm, and the binding of the steel bars includes groove steel bars and reinforcing steel bars.

[0037] The binding method of the grooved steel bars is as follows:

[0038] I. Binding of longitudinal bars: Arrange the longitudinal bars of the edge members according to the requirements of the structural professional design drawings to ensure that the verticality and spacing meet the specifications. The connection of longitudinal bars preferably uses mechanical connection or welding. If lap splicing is used, the lap length requirements (usually 1.2 times the anchorage length) need to be met. The longitudinal bars need to be anchored into the foundation or adjacent members, and the anchorage length is determined according to the design. Two additional bars with the same diameter as the end bars of the edge members are added at the grooved position.

[0039] II. Binding of stirrups: The diameter (d) of the stirrups is determined according to the design drawings. The stirrups of the edge members need to be evenly bound at the spacing, and the node areas (such as the top and bottom of the wall) need to be densified. The hook angle of the stirrups is 135°, and the straight section length is not less than 10 times the stirrup diameter (10d), and they are arranged staggeredly. The intersection points of the stirrups and the longitudinal bars need to be bound point by point, and the binding wire needs to be tightened to avoid loosening.

[0040] III. Additional stirrups at the hole: Additional stirrups need to be added around the hole, and the specifications and spacing are the same as those of the stirrups of the edge members. The layout range of the additional stirrups: The extension length on each side of the hole is not less than 1.5 times the height or width of the hole, and the spacing is not greater than 100 mm. The additional stirrups need to be firmly bound to the main bars to ensure the reinforcement effect at the edge of the hole.

[0041] The binding method of the reinforcement bars for strengthening is as follows:

[0042] I. Configuration of the reinforcement bars for strengthening the hole: Use steel bars with a diameter of 12 mm, and arrange 3 steel bars with a diameter of 12 mm (3@12) around the hole as the reinforcement bars for strengthening to form a closed stirrup. The reinforcement bars for strengthening need to be bound and fixed to the original horizontal distribution bars of the shear wall, and the lap length is not less than 50d (d is the diameter of the steel bar, that is, 50×12 = 600 mm).

[0043] II. Binding of the horizontal distribution bars: The horizontal bars of the wall are the same as the original horizontal distribution bars of the shear wall in terms of specifications. The spacing of the horizontal distribution bars is 200 mm.

[0044] III. Key points of binding: The intersection points of the reinforcement bars for strengthening and the horizontal distribution bars need to be fully bound (100% binding), and there shall be no missed binding or skipping binding. The ends of the reinforcement bars for strengthening should be bent and anchored into the shear wall, and the bending length is not less than 150 mm.

[0045] S2 Install the formwork based on the grooved position and pour concrete to form the pipeline groove of the shear wall;

[0046] In the embodiment of the present invention, first, nail wooden strips with the same length, width, and depth as the groove on the formwork accurately positioned at the pipeline groove part of the shear wall; then pour concrete, and ensure that the wooden strips do not shift during this period.

[0047] S3 lays the pipeline in the pipeline groove of the shear wall and fixes it with pipe clamps and expansion bolts;

[0048] Specific method:

[0049] S31 checks the size of the pipeline groove of the shear wall, clears the sundries and dust in the pipeline groove of the shear wall, and ensures that the installation surface is flat;

[0050] S32 uses pipe clamps and expansion bolts to fix in the pipeline groove of the shear wall and conducts a water pressure test to ensure no leakage.

[0051] In the embodiment of the present invention, the pipeline to be installed is fixed in the groove with pipe clamps of appropriate size and corrosion-resistant and aging-resistant materials through expansion bolts or nail guns. After the pipeline installation is completed, a water pressure test is conducted to ensure no leakage.

[0052] S4 fills and seals the gap between the pipeline and the pipeline groove of the shear wall and performs plastering treatment.

[0053] Specific method:

[0054] S41 fills and seals the gap between the pipeline and the pipeline groove of the shear wall;

[0055] In the embodiment of the present invention, the gap between the pipeline and the groove is filled with cement mortar or foaming glue, and then the groove is sealed with cement mortar to ensure a flat surface.

[0056] S42 uses a nail gun to fix the mortar mesh on the base layer, ensures it is flat and has no wrinkles, and compacts the overlapping part of the mortar mesh with mortar;

[0057] In the embodiment of the present invention, it is cut according to the size of the repair part to ensure that the entire area is covered and there is an overlapping margin. Then, the mesh is fixed on the base layer with nails or a nail gun to ensure it is flat and has no wrinkles; the overlapping width between meshes is not less than 10 cm, and the overlapping part is compacted with mortar.

[0058] S43 uses a trowel to evenly apply mortar on the mortar mesh, ensures that the mortar mesh is completely embedded in the mortar, and after the mortar is slightly dry, applies mortar evenly again to ensure a flat surface;

[0059] In the embodiment of the present invention, the mortar is evenly applied on the mortar mesh with a trowel, with a thickness of about 5 mm, to ensure that the mesh is completely embedded in the mortar; after the first layer of mortar is slightly dry, apply the second layer, with a thickness of about 5 - 10 mm, to ensure a flat surface.

[0060] S44 uses a scraper to scrape the surface of the mortar to ensure flatness, and covers the mortar with a wet cloth or plastic film.

[0061] In the embodiment of the present invention, a trowel is used to scrape the surface of the mortar to ensure flatness. Secondly, before the mortar begins to set, a float is used to finish the surface to make it smooth. After construction, the surface is kept moist to prevent cracking, and the curing time is not less than 7 days. When the weather is hot or dry, a wet cloth or plastic film can be used for covering.

[0062] This method pre-reserves a pressing groove on the shear wall in advance, creating good conditions for later pipeline installation, and avoiding grooving on the shear wall or thickening the wall thickness when laying pipelines later. Compared with the traditional pipeline laying method, the construction period is greatly shortened, and the grooving construction cost is also reduced.

[0063] In the second aspect, the present invention also provides a shear wall structure for laying pipelines with a reserved pressing groove, which is applied to the construction method of the shear wall structure for laying pipelines with a reserved pressing groove as described in the first aspect above.

[0064] The above-disclosed is only a preferred embodiment of a shear wall structure and a construction method for laying pipelines with a reserved pressing groove of the present invention. Of course, the scope of the rights of the present invention cannot be limited thereby. Those of ordinary skill in the art can understand all or part of the processes of implementing the above embodiments, and the equivalent changes made according to the claims of the present invention still fall within the scope covered by the invention.

Claims

1. A shear wall structure construction method for laying pipelines with reserved grooves, characterized in that: The following steps are involved: Determine the location, size and depth of the slot based on the drawings, tie the steel bars according to the shear wall structure template, and mark the slot with paint according to the location; Installing a template based on the slotted position and pouring concrete to form a shear wall pipe groove; Laying the pipeline in the pipeline groove of the shear wall and fixing it with clamps and expansion bolts; The gap between the closed pipe and the shear wall pipe groove is filled and then plastered.

2. The shear wall structure construction method for laying pipelines with reserved grooves as claimed in claim 1, characterized in that; The slot size and depth are both 50 mm, and the binding steel bars include slotted steel bars and reinforcing steel bars.

3. The shear wall structure construction method for laying pipelines with reserved grooves as claimed in claim 1, characterized in that; The specific method of laying the pipeline in the pipeline groove of the shear wall and fixing it with clamps and expansion bolts is: Check the size of the shear wall pipe groove, clean the debris and dust in the shear wall pipe groove, and ensure that the installation surface is flat; Use pipe clamps and expansion bolts to fix them in the shear wall pipe grooves, and perform water pressure tests to ensure there is no leakage.

4. The shear wall structure construction method for laying pipelines with reserved grooves as claimed in claim 1 is characterized in that ； The specific method of filling the gap between the closed pipe and the shear wall pipe groove and performing the plastering treatment is as follows: Filling the gap between the closed pipe and the shear wall pipe groove; Use a nail gun to fix the mortar mesh on the base layer, ensure that it is flat and wrinkle-free, and compact the overlap of the mortar mesh with mortar; Use a spatula to evenly apply the mortar on the mortar net, ensuring that the mortar net is completely embedded in the mortar. After the mortar is slightly dry, evenly apply the mortar again to ensure a smooth surface; Scrape the mortar surface with a scraper to ensure flatness, and cover the mortar with a damp cloth or plastic film.

5. A shear wall structure with reserved grooves for laying pipelines, which is applied to the shear wall structure construction method with reserved grooves for laying pipelines as described in claims 1-4.

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