A crack-resistant structure for large-volume concrete

Abstract

This utility model discloses a crack-resistant structure for large-volume concrete, belonging to the field of building construction technology. It includes a substrate, with a concrete support member on the upper surface of the substrate, a connecting member on the upper surface of the concrete support member, and a concrete crack-resistant member on the upper surface of the connecting member. This utility model utilizes a concrete support member composed of a first supporting steel truss, a cross-connecting steel bar, and a second supporting steel truss. A first concrete layer is poured on the upper part of the substrate, forming an internal receiving groove. The first supporting steel truss includes a first transverse steel bar, a first supporting elastic steel bar, and a second transverse steel bar. The second supporting steel truss includes a third transverse steel bar, a second supporting elastic steel bar, and a fourth transverse steel bar. The second supporting elastic steel bar and the first supporting elastic steel bar are staggered. This arrangement effectively improves the overall support performance of the concrete and enhances its crack resistance.

Description

Technical Field

[0001] This utility model belongs to the field of building construction technology, and specifically relates to a crack-resistant structure for large-volume concrete. Background Technology

[0002] Crack-resistant structures for large-volume concrete are engineering measures specifically designed to prevent cracks from appearing in concrete structures during construction and use. Due to their large volume, the heat generated by hydration in large-volume concrete is difficult to dissipate, leading to an increase in internal temperature and the generation of thermal stress. When this thermal stress exceeds the tensile strength of the concrete, cracks will appear.

[0003] However, traditional crack-resistant structures have some shortcomings. On the one hand, although relying solely on steel reinforcement can improve the overall support performance of concrete to a certain extent, the distribution and quantity of steel reinforcement are often difficult to achieve the ideal state. Especially under the complex stress environment inside the concrete, the supporting effect of steel reinforcement may be limited, and it cannot effectively resist the stress caused by temperature changes and shrinkage. On the other hand, the crack-resistant structure of concrete is relatively poor, and the concrete may develop cracks after long-term use. Utility Model Content

[0004] To address the problems mentioned in the background section, this invention provides a crack-resistant structure for large-volume concrete, which features better concrete support performance and improved crack resistance.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a crack-resistant structure for large-volume concrete, comprising a substrate, a concrete support member provided on the upper surface of the substrate, a connecting member provided on the upper surface of the concrete support member, and a concrete crack-resistant member provided on the upper surface of the connecting member. The concrete support member includes a first supporting steel truss. The first supporting steel truss is provided at the upper end of the base. Cross-connecting steel bars are provided on the side of the first supporting steel truss. The other end of the cross-connecting steel bars is provided with a second supporting steel truss. A first concrete layer is poured at the upper end of the base at the location of the first supporting steel truss, the cross-connecting steel bars and the second supporting steel truss. The interior of the first concrete layer forms a receiving groove corresponding to the first supporting steel truss, the cross-connecting steel bars and the second supporting steel truss.

[0006] Preferably, the supporting steel truss includes a transverse steel bar, the upper end of the base is provided with a transverse steel bar, the upper end of the transverse steel bar is welded with a supporting elastic steel bar, and the upper end of the supporting elastic steel bar is welded with a transverse steel bar.

[0007] Preferably, the second supporting steel truss includes a third transverse steel bar, the other end of the cross-connecting steel bar is welded with the third transverse steel bar, the lower end of the third transverse steel bar is welded with a second supporting elastic steel bar, the lower end of the second supporting elastic steel bar is welded with a fourth transverse steel bar, and the second supporting elastic steel bar and the first supporting elastic steel bar are staggered.

[0008] Preferably, the concrete crack-resistant component includes a wire mesh structure, the upper end of the connecting component is provided with a wire mesh structure, a second concrete layer is poured at the upper end of the connecting component located at the wire mesh structure, and a crack-resistant component is provided on the upper surface of the second concrete layer.

[0009] Preferably, the wire mesh structure includes transverse wires, and the upper end of the connecting member is provided with multiple sets of transverse wires, while the sides of the transverse wires are provided with multiple sets of longitudinal wires in a woven manner.

[0010] Preferably, the crack-resistant component includes a geotextile interlayer, and the upper surface of the second concrete layer is provided with a geotextile interlayer, and the upper surface of the geotextile interlayer is provided with a waterproof and crack-resistant coating.

[0011] Preferably, a polyester fiberglass cloth is provided at the connection between the geotextile interlayer and the waterproof and crack-resistant coating, and both the geotextile interlayer and the polyester fiberglass cloth are formed by concrete pouring.

[0012] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model incorporates a concrete support component, which consists of a first supporting steel truss, a cross-connecting steel bar, and a second supporting steel truss. A first concrete layer is poured on the upper part of the base, forming an internal receiving groove. The first supporting steel truss includes a first transverse steel bar, a first supporting elastic steel bar, and a second transverse steel bar. The second supporting steel truss includes a third transverse steel bar, a second supporting elastic steel bar, and a fourth transverse steel bar. The second supporting elastic steel bar and the first supporting elastic steel bar are staggered. This arrangement effectively improves the overall support performance of the concrete, enhances its crack resistance, and makes the concrete more stable under load and temperature changes, reducing cracks caused by stress concentration.

[0013] 2. This utility model incorporates a concrete crack-resistant component, comprising a wire mesh structure, a concrete layer, and a crack-resistant assembly. The wire mesh structure, woven from transverse and longitudinal steel wires, effectively disperses stress and reduces crack formation. The crack-resistant assembly consists of a geotextile interlayer, polyester fiberglass cloth, and a waterproof and crack-resistant coating. The geotextile interlayer further disperses stress, the polyester fiberglass cloth enhances the strength of the crack-resistant assembly, and the waterproof and crack-resistant coating prevents moisture penetration and reduces cracks caused by moisture changes. Together, these structures significantly improve the crack resistance of concrete, effectively preventing crack formation and propagation, and extending the service life of the concrete structure. Attached Figure Description

[0014] Figure 1 This is a perspective view of the present utility model; Figure 2 This is a perspective view of the concrete support component of this utility model; Figure 3 This is a perspective view of the concrete crack-resistant component of this utility model; Figure 4 This is a cross-sectional view of the crack-prevention component of this utility model; In the diagram: 1. Matrix; 2. Concrete support component; 21. Concrete layer one; 22. Receiving tank; 23. Supporting steel truss one; 231. Transverse steel bar one; 232. Supporting elastic steel bar one; 233. Transverse steel bar two; 24. Cross connecting steel bar; 25. Supporting steel truss two; 251. Transverse steel bar three; 252. Supporting elastic steel bar two; 253. Transverse steel bar four; 3. Connecting component; 4. Concrete crack prevention component; 41. Concrete layer two; 42. Crack prevention component; 421. Geotextile interlayer; 422. Polyester fiberglass cloth; 423. Waterproof and crack-proof coating; 43. Wire mesh structure; 431. Transverse steel wire; 432. Longitudinal steel wire. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Example 1: Please see Figure 1-4 The present invention provides the following technical solution: a crack-resistant structure for large-volume concrete, comprising a base 1, a concrete support member 2 provided on the upper surface of the base 1, a connecting member 3 provided on the upper surface of the concrete support member 2, and a concrete crack-resistant member 4 provided on the upper surface of the connecting member 3. The concrete support member 2 includes a supporting steel truss 23. The supporting steel truss 23 is provided at the upper end of the base 1. Cross-connecting steel bars 24 are provided on the side of the supporting steel truss 23. The other end of the cross-connecting steel bars 24 is provided with a supporting steel truss 25. A concrete layer 21 is poured at the upper end of the base 1 at the supporting steel truss 23, the cross-connecting steel bars 24 and the supporting steel truss 25. The concrete layer 21 forms a receiving groove 22 inside which corresponds to the supporting steel truss 23, the cross-connecting steel bars 24 and the supporting steel truss 25.

[0017] Specifically, the supporting steel truss 23 includes transverse steel bars 231. The upper end of the base 1 is provided with transverse steel bars 231. The upper end of the transverse steel bars 231 is welded with supporting elastic steel bars 232. The upper end of the supporting elastic steel bars 232 is welded with transverse steel bars 233. By adopting the above technical solution, the overall supporting performance of concrete can be effectively improved and its crack resistance can be enhanced.

[0018] Specifically, the supporting steel truss 25 includes a transverse steel bar 3 251. The other end of the cross-connecting steel bar 24 is welded with a transverse steel bar 3 251. The lower end of the transverse steel bar 3 251 is welded with a supporting elastic steel bar 252. The lower end of the supporting elastic steel bar 252 is welded with a transverse steel bar 4 253. The supporting elastic steel bar 252 and the supporting elastic steel bar 1 232 are staggered. By adopting the above technical solution, the distribution of steel bars is further optimized, so that it can better resist the stress caused by temperature changes and shrinkage.

[0019] In this embodiment, the supporting steel truss 23 is first placed on the upper end of the base 1, then cross-connecting steel bars 24 are set on its side, and supporting steel truss 25 is set on the other end of the cross-connecting steel bars 24. Finally, concrete is poured on the upper end of the base 1 to form concrete layer 21, thereby completing the construction of the concrete supporting member 2.

[0020] Example 2: The difference between this embodiment and embodiment 1 is that the concrete crack-resistant component 4 includes a wire mesh structure 43, the upper end of the connecting component 3 is provided with a wire mesh structure 43, the upper end of the connecting component 3 is located at the wire mesh structure 43 and a second concrete layer 41 is poured, and the upper surface of the second concrete layer 41 is provided with a crack-resistant component 42. By adopting the above technical solution, the crack-resistant performance of the concrete is further enhanced, and the generation and expansion of cracks are effectively prevented.

[0021] Specifically, the wire mesh structure 43 includes transverse wires 431, and the upper end of the connecting member 3 is provided with multiple sets of transverse wires 431. The sides of the transverse wires 431 are woven with multiple sets of longitudinal wires 432. By adopting the above technical solution, a dense wire mesh is formed, which can effectively disperse stress and reduce the generation of cracks.

[0022] Specifically, the crack-resistant component 42 includes a geotextile interlayer 421. The upper surface of the concrete layer 41 is provided with the geotextile interlayer 421, and the upper surface of the geotextile interlayer 421 is provided with a waterproof and crack-resistant coating 423. By adopting the above technical solution, the geotextile interlayer 421 can further disperse stress, while the waterproof and crack-resistant coating 423 can prevent water penetration and reduce cracks caused by changes in moisture.

[0023] Specifically, a polyester fiberglass cloth 422 is provided at the connection between the geotextile interlayer 421 and the waterproof and crack-resistant coating 423. Both the geotextile interlayer 421 and the polyester fiberglass cloth 422 are formed by concrete pouring. By adopting the above technical solution, the polyester fiberglass cloth 422 can further enhance the strength and toughness of the crack-resistant component 42, enabling it to better resist the generation of cracks.

[0024] In this embodiment, a wire mesh structure 43 is placed on the upper end of the connecting member 3, and then concrete is poured to form a second concrete layer 41. On the upper end of the second concrete layer 41, a geotextile interlayer 421, a polyester fiberglass cloth 422, and a waterproof and crack-resistant coating 423 are sequentially installed to complete the construction of the concrete crack-resistant member 4.

[0025] The working principle and usage process of this utility model are as follows: First, the supporting steel truss 23 is placed on the upper end of the base 1, then the cross connecting steel bar 24 is set on its side, and the supporting steel truss 25 is set on the other end of the cross connecting steel bar 24. Finally, concrete is poured on the upper end of the base 1 to form a concrete layer 21, thereby completing the construction of the concrete supporting component 2.

[0026] A wire mesh structure 43 is placed on the upper end of the connecting member 3, and then concrete is poured to form a second concrete layer 41. On the upper end of the second concrete layer 41, a geotextile interlayer 421, a polyester fiberglass cloth 422, and a waterproof and crack-resistant coating 423 are sequentially installed to complete the construction of the concrete crack-resistant member 4.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A crack-resistant structure for large-volume concrete, comprising a matrix (1), characterized in that: The upper surface of the substrate (1) is provided with a concrete support member (2), the upper surface of the concrete support member (2) is provided with a connecting member (3), and the upper surface of the connecting member (3) is provided with a concrete anti-crack member (4). The concrete support member (2) includes a first supporting steel truss (23), a cross connecting steel bar (24), and a second supporting steel truss (25). The first supporting steel truss (23) is located at the upper end of the base (1), and its side is connected to the second supporting steel truss (25) through the cross connecting steel bar (24). The concrete support member (2) is cast as a whole on the first concrete layer (21) and forms a corresponding receiving groove (22).

2. The crack-resistant structure for large-volume concrete according to claim 1, characterized in that: The supporting steel truss 1 (23) includes a transverse steel bar 1 (231), a supporting elastic steel bar 1 (232) and a transverse steel bar 2 (233). The transverse steel bar 1 (231) is located at the upper end of the base (1) and the supporting elastic steel bar 1 (232) is welded above it. The transverse steel bar 2 (233) is welded to the upper end of the supporting elastic steel bar 1 (232).

3. The crack-resistant structure for large-volume concrete according to claim 2, characterized in that: The second supporting steel truss (25) is formed by welding the third transverse steel bar (251), the second supporting elastic steel bar (252) and the fourth transverse steel bar (253) in sequence. The third transverse steel bar (251) is welded to the other end of the cross connecting steel bar (24). The upper and lower ends of the second supporting elastic steel bar (252) are welded to the third transverse steel bar (251) and the fourth transverse steel bar (253) respectively. The second supporting elastic steel bar (252) is staggered from the first supporting elastic steel bar (232) in the first supporting steel truss (23).

4. The crack-resistant structure for large-volume concrete according to claim 1, characterized in that: The concrete crack prevention component (4) includes a wire mesh structure (43), a second concrete layer (41), and a crack prevention component (42). The wire mesh structure (43) is located at the upper end of the connecting component (3), and a second concrete layer (41) is formed by pouring concrete on top of it. The crack prevention component (42) is provided on the upper surface of the second concrete layer (41).

5. The crack-resistant structure for large-volume concrete according to claim 4, characterized in that: The wire mesh structure (43) includes transverse wires (431), and the upper end of the connecting member (3) is provided with multiple sets of transverse wires (431). The sides of the transverse wires (431) are woven with multiple sets of longitudinal wires (432).

6. The crack-resistant structure for large-volume concrete according to claim 4, characterized in that: The crack-resistant component (42) includes a geotextile interlayer (421) and a waterproof and crack-resistant coating (423) disposed thereon, wherein the geotextile interlayer (421) is laid on the upper surface of the second concrete layer (41).

7. The crack-resistant structure for large-volume concrete according to claim 6, characterized in that: Polyester fiberglass cloth (422) is provided at the connection between the geotextile interlayer (421) and the waterproof and crack-resistant coating (423). Both the geotextile interlayer (421) and the polyester fiberglass cloth (422) are formed by concrete pouring.

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