Building top plate and anti-cracking construction method thereof

Abstract

The invention provides a building roof and an anti-cracking construction method thereof, and the method comprises the following steps: after construction preparation work is completed, pre-treating a roof base layer; a heat preservation and insulation material is laid on the pretreated roof base layer to form a heat preservation and insulation layer; steel bars and embedded pipes are laid and installed on the roof base layer provided with the heat preservation and insulation layer, the embedded pipes are fixed to the steel bars, and concrete layers are poured on the laid steel bars and the embedded pipes; a waterproof protection layer is laid on the outer side of the concrete layer; and carrying out construction acceptance on the roof on which the waterproof protective layer is laid. By means of the method, all construction procedures can be reasonably planned, the construction quality of all stages is guaranteed, and the quality problems such as cracking of the top plate are prevented.

Description

Technical Field

[0001] The present invention relates to the technical field of building construction, and more specifically, to a building roof and a method for preventing cracking thereof. Background Art

[0002] Modern buildings are usually multi-story reinforced concrete structures, with the upper and lower floors separated by floor slabs. Each floor has a roof, and the bottom slab of the upper floor is the roof slab of the lower floor. The indoor roof is also usually a reinforced concrete structure.

[0003] However, the existing roof construction method not only has a long construction period and complicated construction procedures, but also has defects in quality supervision at each stage, which will lead to quality problems such as cracks in the final roof. In addition, when pouring concrete, pipes are usually pre-buried to facilitate subsequent threading and construction. However, the position of the pre-buried pipes is easily affected by the buoyancy of the concrete or shifted up and down during the concrete mixing process and is not centered, resulting in an imbalance in the overall tension of the roof, which may also make it easy for the roof to crack along the pre-buried pipes in the later stage. Summary of the invention

[0004] In view of the above problems, an object of the present invention is to provide a building roof and a method for preventing cracking thereof, so as to solve the quality problems existing in the existing roof construction.

[0005] The method for preventing cracking of a building roof provided by the present invention comprises the following steps: pre-treating a roof base after the construction preparation work is completed; laying a thermal insulation material on the pre-treated roof base to form a thermal insulation layer; laying and installing steel bars and embedded pipes on the roof base provided with the thermal insulation layer, the embedded pipes being fixed on the steel bars, and pouring a concrete layer at the laid steel bars and embedded pipes; laying a waterproof protective layer on the outer side of the concrete layer; and conducting construction acceptance on the roof after laying the waterproof protective layer.

[0006] In addition, an optional technical solution is that the construction preparation work includes: determining the structural design, technical requirements and required construction materials of the roof to be constructed, and conducting quality inspection on the construction materials; at the same time, preparing the required construction equipment and tools, and conducting safety inspections and setting up protective measures on the construction site.

[0007] In addition, an optional technical solution is that the pretreatment of the roof base includes: comprehensive cleaning and leveling of the roof base; repairing and waterproofing cracks in the roof base to form a basic waterproof layer.

[0008] In addition, an optional technical solution is to lay thermal insulation materials on the roof base to form a thermal insulation layer, including: laying insulation boards on the base waterproof layer; laying insulation materials on the insulation boards; wherein the insulation materials include extruded boards, graphite polystyrene boards, rock wool, glass wool and polyurethane insulation materials.

[0009] In addition, an optional technical solution is to lay and install steel bars and embedded pipes on the roof base, including: laying steel bars and connecting and fixing them according to the preset steel bar installation position; providing limiting stirrups on the steel bars, and a embedded pipe passing through at least two of the limiting stirrups for locking and positioning, so that the embedded pipe is located in the middle position of the main body thickness direction of the roof.

[0010] In addition, an optional technical solution is that the process of pouring the concrete layer includes: conducting a quality inspection on the pouring formwork and steel bars, and when the inspection meets the requirements, pouring concrete at a preset speed and preset thickness, and vibrating during the pouring process; the concrete pouring is divided into one or two times, and when the concrete pouring is divided into two times, the time for the two pourings shall not exceed 60 minutes to 90 minutes.

[0011] In addition, an optional technical solution is that the construction materials include waterproof materials, thermal insulation materials, steel bars, embedded pipes and concrete; the construction equipment and tools include: tower cranes, mixers, vibrators and formwork.

[0012] In addition, an optional technical solution is to lay a waterproof protective layer on the outside of the concrete layer, including: laying a carbon fiber anti-cracking mesh layer on the concrete layer; laying a surface waterproof layer on the outside of the carbon fiber anti-cracking mesh layer; wherein the waterproof protective layer includes the carbon fiber anti-cracking mesh layer and the surface waterproof layer.

[0013] In addition, an optional technical solution is to conduct a construction acceptance inspection on the roof, including: a comprehensive inspection and cleaning of the entire roof, checking whether the construction quality meets the requirements, cleaning up the remaining materials and garbage on the construction site, and promptly rectifying and repairing the problems found during the inspection, and finally conducting an acceptance inspection to ensure that the roof construction meets the structural design and technical requirements.

[0014] On the other hand, the present invention also provides a building roof, which is formed by using the above-mentioned building roof anti-cracking construction method.

[0015] Utilizing the above-mentioned building roof slab and its anti-cracking construction method, firstly, thermal insulation material is laid on the pretreated roof base to form a thermal insulation layer, then steel bars and embedded pipes are laid on the thermal insulation layer, and then a concrete layer is poured, and a waterproof protective layer is laid on the outside of the concrete layer to complete the construction of the roof, and finally the roof is inspected after the construction is completed to ensure that the roof meets the design and specification requirements and can be put into use normally. The embedded pipes are fixed on the steel bars to prevent the embedded pipes from being displaced during concrete pouring, thereby improving the position installation accuracy and straightness of the embedded pipes, thereby avoiding imbalance of the overall tension of the roof slab and cracking of the roof slab. The entire construction process is orderly, the quality of each stage is controllable, and the high-quality construction requirements for the roof slab can be met.

[0016] In order to achieve the above and related purposes, one or more aspects of the present invention include the features that will be described in detail later. The following description and the accompanying drawings describe some exemplary aspects of the present invention in detail. However, these aspects indicate only some of the various ways in which the principles of the present invention can be used. In addition, the present invention is intended to include all these aspects and their equivalents. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] By referring to the following description in conjunction with the accompanying drawings, and with a more comprehensive understanding of the present invention, other objects and results of the present invention will become more clear and easy to understand. In the accompanying drawings:

[0018] Figure 1 Flow chart of a construction method for preventing cracking of a building roof according to an embodiment of the present invention;

[0019] Figure 2 is a schematic structural diagram of a roof base layer according to an embodiment of the present invention;

[0020] Figure 3 is a schematic structural diagram of a concrete layer according to an embodiment of the present invention;

[0021] Figure 4 Schematic diagram of the structure of steel bars and limiting stirrups according to an embodiment of the present invention.

[0022] The reference numerals therein are: base layer 201 , base waterproof layer 202 , insulation board 203 , concrete layer 301 , carbon fiber anti-cracking mesh layer 302 , surface waterproof layer 303 , limiting hoop reinforcement ring 401 , steel bar frame 402 , embedded pipe 403 .

[0023] The same reference numerals throughout the drawings indicate similar or corresponding features or functions. DETAILED DESCRIPTION

[0024] In the following description, for the purpose of illustration, in order to provide a comprehensive understanding of one or more embodiments, many specific details are set forth. However, it is apparent that these embodiments may also be implemented without these specific details. In other examples, for ease of describing one or more embodiments, known structures and devices are shown in the form of block diagrams.

[0025] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0026] It will be understood by those skilled in the art that, unless otherwise stated, the singular forms "a", "an", "said" and "the" used herein may also include plural forms. It should be further understood that the term "comprising" used in the specification of the present invention refers to the presence of the features, integers, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or groups thereof. It should be understood that the term "and / or" used herein includes any unit and all combinations of one or more associated listed items.

[0027] It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as those generally understood by those skilled in the art in the art to which the present invention belongs. It should also be understood that terms such as those defined in common dictionaries should be understood to have meanings consistent with the meanings in the context of the prior art, and will not be interpreted with idealized or overly formal meanings unless defined as herein.

[0028] In order to describe the building roof and the anti-cracking construction method thereof in detail, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0029] Figure 1 The schematic process of the construction method for preventing cracking of a building roof according to an embodiment of the present invention is shown; Figures 2 to 4 The schematic partial construction structures according to the embodiments of the present invention are respectively shown.

[0030] like Figures 1 to 4As shown together, the construction method for preventing cracking of a building roof according to an embodiment of the present invention comprises:

[0031] S100: After the construction preparation work is completed, the roof base is pre-treated.

[0032] Among them, construction preparation work includes: determining the structural design, technical requirements and required construction materials of the roof to be constructed, and conducting quality inspections on the construction materials; at the same time, preparing the required construction equipment and tools, and conducting safety inspections and setting up protective measures on the construction site.

[0033] Specifically, in this step, we first need to understand the structural design and technical requirements of the roof, ensure that the construction plan is consistent with them, organize a professional construction team (including project managers, technicians and construction workers, etc.) for targeted training, determine the required construction materials, test the quality of the materials, and prepare the required construction equipment and tools, and conduct a comprehensive safety inspection and protective measures on the construction site. Among them, construction materials include waterproof materials, thermal insulation materials, steel bars, embedded pipes and concrete, etc.; construction equipment and tools include: tower cranes, mixers, vibrators and formwork, etc.

[0034] In addition, the process of pre-treating the roof base includes comprehensive cleaning and leveling of the roof base, repairing and waterproofing of cracks in the roof base, and forming a basic waterproof layer. The roof base is comprehensively cleaned to remove dust and debris to make the surface of the base 201 clean and tidy. For uneven areas, leveling is required, and cracks or defects in the base are repaired to prevent leakage problems in the later stage. Then, the base is waterproofed to form a basic waterproof layer 202.

[0035] As a specific example, the above-mentioned method of repairing cracks or defects includes filling and leveling with cement mortar or filling materials, and the method of waterproofing may include painting or laying waterproof materials to form a waterproof layer.

[0036] S200: Laying thermal insulation materials on the pre-treated roof base to form a thermal insulation layer.

[0037] Among them, the insulation board is first laid on the basic waterproof layer, and then the thermal insulation material is laid on the insulation board; wherein the thermal insulation material includes extruded board, graphite polystyrene board, rock wool, glass wool and polyurethane thermal insulation material.

[0038] Specifically, when laying the thermal insulation material according to the design requirements, first lay the insulation board 203 to ensure that it is laid flat and tight, and the joints between the boards must be tight without gaps; then, lay the insulation material on the insulation board, and perform special treatment on the corners and special parts of the thermal insulation layer. For example, fill the corners of the thermal insulation layer with fillers to strengthen the sealing effect at the corners to ensure that the thermal insulation effect of the entire roof is uniform. During the laying process, pay attention to the protection of the thermal insulation material to avoid damage.

[0039] S300: laying and installing steel bars and embedded pipes on a roof base provided with a thermal insulation layer, fixing the embedded pipes on the steel bars, and pouring a concrete layer at the laid steel bars and embedded pipes.

[0040] Among them, the cutting, processing and installation of steel bars are carried out according to the design requirements. When installing steel bars, it is necessary to ensure that the position of the steel bars is accurate and firmly fixed. At the same time, during the steel bar installation process, the embedded pipes are installed and fixed at the set position; then, the steel bar construction is inspected, the steel bar installation position is determined according to the drawings, and the steel bar installation and connection position is detected, and inspection records are made to form a report.

[0041] In a specific embodiment of the present invention, according to the preset steel bar installation position, the steel bars are laid and connected and fixed; a limiting hoop ring 401 is set on the steel bar (frame) 402, and a pre-buried pipe passes through at least two limiting hoop rings for locking and positioning, so that the pre-buried pipe is located in the middle position of the main body thickness direction of the roof. Among them, the specifications, quantity, spacing, etc. of the steel bars must be strictly carried out in accordance with the design drawings, the pre-buried pipe installation position is in the middle position of the top plate body thickness direction, the pre-buried pipe 403 is inserted into the inner cavity of the limiting hoop ring 401, the lower peripheral wall of the pre-buried pipe 403 abuts against the bottom inner wall of the limiting hoop ring 401, and the upper peripheral wall of the pre-buried pipe 403 abuts against the top inner wall of the limiting hoop ring 401. The fiber hoop ring 401 can effectively limit the different positions of the pre-buried pipe synchronously, ensuring the position accuracy and straightness of the pre-buried pipe 403, thereby avoiding the imbalance of the overall tension of the top plate and the cracking of the top plate.

[0042] Before pouring concrete, the formwork, steel bars, etc. must be checked again to ensure that they meet the requirements. Then the concrete must be mixed and transported to ensure the quality of the concrete and the continuity of its supply. When pouring concrete, an appropriate pouring method must be used. During the pouring process, the concrete must be vibrated to make it fully dense and remove bubbles. At the same time, attention must be paid to controlling the pouring speed and thickness to avoid cold joints. After the concrete pouring is completed, maintenance must be carried out in a timely manner.

[0043] Specifically, the steel bar connection position is inspected, including the lap length, joint position and number of the tied lap joints, as well as the appearance quality and mechanical property test of the welded joints or mechanical connections to see if they meet the requirements. Furthermore, the concrete pouring method includes pumping or chute, the mixing of concrete requires 4h-5h for use, and the concrete pouring is divided into one or two times. When the pouring area is large, it can be divided into two times of pouring, and the time of two pourings should not exceed 60min-90min.

[0044] S400: Lay a waterproof protective layer on the outside of the concrete layer.

[0045] The step further includes laying a carbon fiber anti-cracking mesh layer on the concrete layer, and then laying a surface waterproof layer on the outside of the carbon fiber anti-cracking mesh layer; wherein the waterproof protective layer includes a carbon fiber anti-cracking mesh layer and a surface waterproof layer. In this step, it is necessary to ensure that the concrete reaches a certain strength, and then ensure that the thickness and strength of the waterproof protective layer meet the requirements. During the laying process, attention should be paid to leveling and compacting to avoid hollowing and other problems. The edges and special parts of the protective layer should be specially treated to ensure the waterproof effect. The external waterproof layer can be laid with cement mortar or fine stone concrete.

[0046] S500: Conduct construction acceptance on the roof after laying the waterproof protective layer.

[0047] Among them, after the overall construction of the roof is completed, the entire roof should be comprehensively inspected and cleaned to check whether the construction quality meets the requirements, including waterproof performance, thermal insulation effect and structural strength, etc. Then, the remaining materials and garbage on the construction site should be cleaned up to keep the roof tidy and clean. Any problems found should be rectified and repaired in time to ensure the quality and safety of the roof construction. Finally, relevant acceptance work should be done to ensure that the roof construction meets the design and specification requirements and can be put into normal use.

[0048] Embodiment 1:

[0049] The construction method for preventing cracking of a building roof according to an embodiment of the present invention comprises:

[0050] Step 1: Construction preparation, understand the structural design and technical requirements of the roof, ensure that the construction plan is consistent with them, organize a professional construction team, and provide them with targeted training, determine the required construction materials, test the quality of the materials, and prepare the required construction equipment and tools, and conduct a comprehensive safety inspection and protective measures on the construction site. The construction team in step 1 includes project managers, technicians, and construction workers. The construction materials in step 1 include waterproof materials, thermal insulation materials, steel bars, concrete, etc. The construction equipment includes tower cranes, mixers, vibrators, formwork, etc.;

[0051] Step 2: Base treatment: clean the roof base comprehensively, remove dust and debris to make the surface of the base 201 clean and tidy, level the uneven areas, repair the cracks or defects in the base to prevent leakage problems in the later stage, and then waterproof the base to form a waterproof layer 202; the method of repairing the cracks or defects in the step 2 is to fill and level with cement mortar or filling materials, and the method of waterproofing in the step 2 is to paint or lay with waterproof materials;

[0052] Step 3: thermal insulation construction, laying of thermal insulation materials according to design requirements, first laying of thermal insulation board 203, ensuring that it is laid flat and tight, the joints between boards must be tight and there must be no gaps, laying of thermal insulation materials on thermal insulation board 203, special treatment of the edges and corners and special parts of the thermal insulation layer, ensuring uniform thermal insulation effect of the entire roof, during the laying process, attention must be paid to the protection of the thermal insulation materials to avoid damage, the thermal insulation material laid on the thermal insulation board 203 in step 3 is specifically an extruded board, and the edges and corners of the thermal insulation layer are filled with fillers in step 3 to strengthen the sealing of the edges and corners;

[0053] Step 4: Steel bar installation construction, cutting, processing and installation of steel bars are carried out according to design requirements. When installing steel bars, it is necessary to ensure that the position of the steel bars is accurate and firmly fixed. During the steel bar installation process, the embedded pipe is installed and fixed at the set position. The specifications, quantity, spacing, etc. of the steel bars installed in step 4 must be strictly carried out according to the design drawings. In step 4, the embedded pipe installation position is in the middle position in the thickness direction of the top plate body. The embedded pipe is inserted into the inner cavity of the limiting hoop reinforcement ring. The lower peripheral wall of the embedded pipe abuts against the bottom inner wall of the limiting hoop reinforcement ring, and the upper peripheral wall of the embedded pipe abuts against the top inner wall of the limiting hoop reinforcement ring, which effectively limits the different positions of the embedded pipe synchronously;

[0054] Step 5: Inspection of steel bar construction: determine the steel bar installation position according to the drawings, detect the steel bar installation connection position, make certain inspection records, and form a report. The specific content of the steel bar connection position inspection in step 5 includes the lap length, joint position and number of the binding lap, and whether the appearance quality and mechanical property test of the welded joint or mechanical connection meet the requirements;

[0055] Step 6: pouring of concrete layer 301. Before pouring concrete, the formwork, steel bars, etc. must be checked again to ensure that they meet the requirements. Then, the concrete must be mixed and transported to ensure the quality of the concrete and the continuity of supply. A suitable pouring method must be used when pouring concrete. During the pouring process, the concrete must be vibrated to make it fully dense and remove bubbles. At the same time, attention must be paid to controlling the pouring speed and thickness to avoid cold joints. After the concrete pouring is completed, maintenance must be carried out in time. The concrete pouring method in step 6 includes pumping or chute. The concrete in step 6 needs to be used for another 4 hours after mixing. When the pouring area in step 6 is large, it can be poured in two times, and the time of the two pourings should not exceed 60 minutes.

[0056] Step 7: Construction of waterproof protective layer: first lay the carbon fiber anti-cracking mesh layer 302, and then add the surface waterproof layer 303 on the surface of the carbon fiber anti-cracking mesh layer to ensure that the thickness and strength of the protective layer meet the requirements. During the laying process, attention should be paid to leveling and compacting to avoid problems such as hollowing. For the corners and special parts of the protective layer, special treatment should be carried out to ensure the waterproof effect. In step 7, before the construction of the waterproof layer, it is necessary to ensure that the concrete reaches a certain strength. In step 7, the waterproof layer is laid with cement mortar or fine stone concrete;

[0057] Step 8: Finishing work. After the construction is completed, the entire roof should be thoroughly inspected and cleaned to check whether the construction quality meets the requirements, clean up the remaining materials and garbage at the construction site, keep the roof tidy and clean, and promptly rectify and repair any problems found to ensure the quality and safety of the roof construction. Finally, relevant acceptance work should be done to ensure that the roof construction meets the design and specification requirements and can be put into normal use. The construction quality that needs to be checked in step 8 includes waterproof performance, thermal insulation effect, and structural strength.

[0058] Embodiment 2:

[0059] The construction method for preventing cracking of a building roof according to an embodiment of the present invention comprises:

[0060] Step 1: Construction preparation, understand the structural design and technical requirements of the roof, ensure that the construction plan is consistent with them, organize a professional construction team, and provide them with targeted training, determine the required construction materials, test the quality of the materials, and prepare the required construction equipment and tools, and conduct a comprehensive safety inspection and protective measures on the construction site. The construction team in step 1 includes project managers, technicians, and construction workers. The construction materials in step 1 include waterproof materials, thermal insulation materials, steel bars, concrete, etc. The construction equipment includes tower cranes, mixers, vibrators, formwork, etc.;

[0061] Step 2: Base treatment: clean the roof base comprehensively, remove dust and debris to make the base surface clean and tidy, level the uneven areas, repair the cracks or defects in the base to prevent leakage problems in the later stage, and then waterproof the base. The method of repairing the cracks or defects in step 2 is to fill and level the cracks with cement mortar or filling materials. The waterproof treatment method in step 2 is to paint or lay waterproof materials;

[0062] Step 3: Thermal insulation construction. The thermal insulation materials are laid according to the design requirements. The thermal insulation boards are laid first to ensure that they are laid flat and tight. The joints between the boards must be tight without gaps. The thermal insulation materials are laid on the thermal insulation boards. The edges and special parts of the thermal insulation layer must be specially treated to ensure that the thermal insulation effect of the entire roof is uniform. During the laying process, attention should be paid to the protection of the thermal insulation materials to avoid damage. The thermal insulation materials laid on the thermal insulation boards in step 3 are specifically extruded boards. In step 3, the edges and corners of the thermal insulation layer are filled with fillers to strengthen the sealing of the edges and corners.

[0063] Step 4: Steel bar installation construction, cutting, processing and installation of steel bars shall be carried out according to design requirements. When installing steel bars, it is necessary to ensure that the position of the steel bars is accurate and they are firmly fixed. During the steel bar installation process, the embedded pipes shall be installed and fixed at the set position. The specifications, quantity, spacing, etc. of the installed steel bars in step 4 must be strictly carried out according to the design drawings. In step 4, the installation position of the embedded pipe 403 is in the middle position in the thickness direction of the top plate body. The embedded pipe 403 is penetrated into the inner cavity of the limiting hoop reinforcement ring 401, and the lower peripheral wall of the embedded pipe abuts against the bottom inner wall of the limiting hoop reinforcement ring, and the upper peripheral wall of the embedded pipe abuts against the top inner wall of the limiting hoop reinforcement ring 401, which effectively limits the different positions of the embedded pipe synchronously; the limiting hoop reinforcement ring 401 is installed on the steel bar frame 402.

[0064] Step 5: Inspection of steel bar construction: determine the steel bar installation position according to the drawings, detect the steel bar installation connection position, make certain inspection records, and form a report. The specific content of the steel bar connection position inspection in step 5 includes the lap length, joint position and number of the binding lap, and whether the appearance quality and mechanical property test of the welded joint or mechanical connection meet the requirements;

[0065] Step 6: Concrete pouring. Before pouring concrete, the formwork, steel bars, etc. must be checked again to ensure that they meet the requirements. Then, the concrete must be mixed and transported to ensure the quality of the concrete and the continuity of supply. When pouring concrete, an appropriate pouring method must be used. During the pouring process, the concrete must be vibrated to make it fully dense and remove bubbles. At the same time, attention must be paid to controlling the pouring speed and thickness to avoid cold joints. After the concrete pouring is completed, it must be maintained in time. The concrete pouring method in step 6 includes pumping or chute. The concrete in step 6 needs to be used for another 5 hours after mixing. When the pouring area in step 6 is large, it can be poured in two times, and the time for the two pourings should not exceed 90 minutes.

[0066] Step 7: Construction of waterproof protective layer: first lay the carbon fiber anti-cracking mesh layer, and then add a waterproof layer on the surface of the carbon fiber anti-cracking mesh layer to ensure that the thickness and strength of the protective layer meet the requirements. During the laying process, attention should be paid to leveling and compacting to avoid problems such as hollowing. For the corners and special parts of the protective layer, special treatment should be carried out to ensure the waterproof effect. In step 7, before the construction of the waterproof layer, it is necessary to ensure that the concrete reaches a certain strength. In step 7, the waterproof layer is laid with cement mortar or fine stone concrete;

[0067] Step 8: Finishing work. After the construction is completed, the entire roof should be thoroughly inspected and cleaned to check whether the construction quality meets the requirements, clean up the remaining materials and garbage at the construction site, keep the roof tidy and clean, and promptly rectify and repair any problems found to ensure the quality and safety of the roof construction. Finally, relevant acceptance work should be done to ensure that the roof construction meets the design and specification requirements and can be put into normal use. The construction quality that needs to be checked in step 8 includes waterproof performance, thermal insulation effect, and structural strength.

[0068] Corresponding to the above-mentioned construction method for preventing cracking of a building roof, the present invention further provides a building roof formed by the above-mentioned construction method for preventing cracking of a building roof. It should be noted that the embodiments of the above-mentioned building roof can refer to the embodiments of the construction method for preventing cracking of a building roof, and will not be described one by one here.

[0069] According to the building roof and anti-cracking construction method thereof of the present invention, a fixing assembly (limiting hoop ring) for fixing and limiting the embedded pipe is arranged in the steel frame, and the embedded pipe is inserted into the inner cavity of the limiting hoop ring, which can effectively limit the different positions of the embedded pipe synchronously, reduce the possibility of the embedded pipe shifting up and down or the middle part bulging upward and bending downward, improve the position installation accuracy of the embedded pipe and improve the straightness of the embedded pipe, thereby avoiding the imbalance of the overall tension of the roof and the cracking of the roof; in addition, a waterproof layer is added outside the carbon fiber anti-cracking mesh layer to reduce the exposure of the carbon fiber anti-cracking mesh to the external environment, improve the aesthetics of the roof body and the service life of the carbon fiber anti-cracking mesh, in addition, the waterproof layer can reduce the situation that moisture penetrates into the carbon fiber anti-cracking mesh layer and the steel fiber concrete layer in turn to cause steel fiber rust, thereby affecting the strength of the steel fiber concrete layer, and is conducive to reducing the situation that moisture penetrates into the roof body and affects the strength of the roof body structure, the whole construction process is orderly, the quality of each stage is controllable, and the high-quality construction requirements of the roof can be met.

[0070] As described above, the building roof and the anti-cracking construction method thereof according to the present invention are described by way of example with reference to the accompanying drawings. However, those skilled in the art should understand that various improvements can be made to the building roof and the anti-cracking construction method thereof proposed by the present invention without departing from the content of the present invention. Therefore, the protection scope of the present invention should be determined by the content of the attached claims.

Claims

1. A construction method for preventing cracking of a building roof, characterized in that: include: After the construction preparation work is completed, the roof base is pre-treated; Laying thermal insulation materials on the pre-treated roof base to form a thermal insulation layer; The steel bars and embedded pipes are laid and installed on the roof base layer provided with the thermal insulation layer, the embedded pipes are fixed on the steel bars, and a concrete layer is poured at the laid steel bars and embedded pipes; Laying a waterproof protective layer on the outer side of the concrete layer; Carry out construction acceptance on the roof after laying the waterproof protective layer.

2. The construction method for preventing cracking of building roof according to claim 1, characterized in that: The construction preparation work includes: determining the structural design, technical requirements and required construction materials of the roof to be constructed, and conducting quality inspection on the construction materials; at the same time, preparing the required construction equipment and tools, and conducting safety inspections and setting up protective measures on the construction site.

3. The construction method for preventing cracking of building roof according to claim 1, characterized in that: The pretreatment of the roof base comprises: Comprehensively clean and level the roof base; The cracks in the roof base layer are repaired and waterproofed to form a basic waterproof layer.

4. The construction method for preventing cracking of building roof according to claim 3, characterized in that: Laying thermal insulation materials on the roof base to form a thermal insulation layer includes: Laying a thermal insulation board on the basic waterproof layer; Heat insulation materials are laid on the insulation board; wherein the heat insulation materials include extruded board, graphite polystyrene board, rock wool, glass wool and polyurethane insulation materials.

5. The construction method for preventing cracking of building roof according to claim 1, characterized in that: The steel bars and embedded pipes are laid and installed on the roof base, including: According to the preset steel bar installation position, lay the steel bars and connect and fix them; A limiting stirrup ring is arranged on the steel bar, and a pre-buried pipe passes through at least two of the limiting stirrup rings for locking and positioning, so that the pre-buried pipe is located in the middle position of the main body thickness direction of the roof.

6. The construction method for preventing cracking of building roof according to claim 1, characterized in that: The process of pouring the concrete layer includes: Check the quality of the casting formwork and steel bars, and when the inspection meets the requirements, pour the concrete at the preset speed and preset thickness, and vibrate during the pouring process; The concrete pouring is carried out once or twice. When the concrete pouring is carried out twice, the time of the two pourings does not exceed 60 minutes to 90 minutes.

7. The construction method for preventing cracking of building roof according to claim 2, characterized in that: The construction materials include waterproof materials, thermal insulation materials, steel bars, embedded pipes and concrete; The construction equipment and tools include: a tower crane, a mixer, a vibrator and a formwork.

8. The construction method for preventing cracking of building roof according to claim 1, characterized in that: A waterproof protective layer is laid on the outer side of the concrete layer, comprising: Laying a carbon fiber anti-cracking mesh layer on the concrete layer; A surface waterproof layer is laid on the outer side of the carbon fiber anti-cracking mesh layer; wherein the waterproof protective layer includes the carbon fiber anti-cracking mesh layer and the surface waterproof layer.

9. The construction method for preventing cracking of building roof according to claim 1, characterized in that: The construction acceptance of the rooftop includes: comprehensive inspection and cleaning of the entire rooftop, checking whether the construction quality meets the requirements, cleaning up the remaining materials and garbage at the construction site, promptly rectifying and repairing the problems found during the inspection, and finally conducting an acceptance inspection to ensure that the rooftop construction meets the structural design and technical requirements.

10. A building roof, characterized in that: The method is formed by using the anti-cracking construction method for the building roof as described in any one of claims 1 to 9.

Images