Induced joint structure for ultra-long thin-shell bare concrete member

Abstract

The utility model discloses an induced joint structure for an ultra-long thin-shell bare concrete member, which belongs to the technical field of concrete construction and comprises a concrete member, a template, an induced strip, a water stop belt and an additional steel bar. Structural reinforcements are arranged in the concrete member, induction joints are arranged on the structural reinforcements at intervals, and the structural reinforcements are broken at the induction joints. The formworks are arranged on the two sides of the concrete member. The induction strips are symmetrically arranged on the two formworks, the inner ends of the induction strips are inserted into the concrete member, and a gap is formed between the inner ends of the two induction strips. The water stop belt is arranged in a gap between the two induction strips; the additional steel bar is arranged in the gap between the two induction strips, and the two ends of the additional steel bar are arranged in the concrete members on the two sides of the induction joint. The opposite inducing strips are arranged on the two sides of the structure, the additional steel bars are arranged between the inducing strips, the additional steel bars and the structural steel bars are connected through the connecting steel bars, the connecting strength is guaranteed, limitation of the structural strength on the number of the arranged inducing joints is reduced, and the anti-leakage capacity of the concrete structure is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of concrete construction, in particular to an induced joint structure for an ultra-long thin-shell plain concrete component. Background Art

[0002] As concrete is widely used in construction, architects have gradually shifted their focus from concrete as a structural material to the texture of the material itself. They use the natural texture of concrete after molding as a finishing effect and express the emotions conveyed by the building through the inherent decorative characteristics of concrete. This type of concrete is fair-faced concrete.

[0003] The pouring requirements of plain concrete are higher than those of ordinary concrete. Once improper pouring occurs, cracks and leakage will appear in the plain concrete structure, especially in the plain concrete structure with extra-long and thin shell, the possibility of structural cracks and leakage will be further increased.

[0004] Induced joints refer to areas in concrete structures that are prone to cracking and are created by appropriately reducing the constraints of steel bars on concrete. Waterstops are usually installed in the induced joints. By artificially creating weak zones, the concrete structure is induced to crack here, but no leakage will occur.

[0005] In the ultra-long and thin-shelled exposed concrete structure, more induced joints need to be set. Since the transverse structural reinforcement is disconnected at the induced joints and the amount of longitudinal reinforcement is greatly reduced, setting more induced joints will affect the overall strength of the structure. In addition, traditional induced strips are difficult to remove, affecting construction efficiency. Utility Model Content

[0006] The purpose of the utility model is to provide an induced joint structure for ultra-long thin-shell plain concrete components, so as to solve the problems in the above-mentioned background technology that too many induced joints are set, affecting the overall strength of the structure, and that traditional induced strips are difficult to remove.

[0007] To achieve the above objectives, the present invention provides the following technical solutions:

[0008] An induced joint structure for an ultra-long thin-shell plain concrete component comprises a concrete component, a formwork, an induction strip, a waterstop and additional steel bars; structural steel bars are arranged in the concrete component, on which induction joints are arranged at intervals, and the structural steel bars are disconnected at the induction joints; the formwork is arranged on both sides of the concrete component; the induction strips are symmetrically arranged on the two formworks, the inner ends of the induction strips are inserted into the concrete component, and a gap is provided between the inner ends of the two induction strips; the waterstop is arranged in the gap between the two induction strips; the additional steel bars are arranged in the gap between the two induction strips, and the two ends of the additional steel bars are respectively arranged in the concrete components on both sides of the induced joint.

[0009] Furthermore, the induction strip includes a limiting portion and an inserting portion; the limiting portion is connected to the formwork; the inserting portion passes through the formwork and enters the interior of the concrete component, and a gap is set between the two opposite inserting portions.

[0010] Furthermore, the induction strip is arranged vertically throughout the entire length; the limiting portion and the insertion portion are arranged in a cross shape.

[0011] Furthermore, the cross-sectional width of the insertion portion located in the concrete component gradually narrows toward the inner end, and through holes are provided at intervals from top to bottom at the outer end.

[0012] Furthermore, the additional steel bars are arranged on both sides of the waterstop and are spaced apart from top to bottom.

[0013] Furthermore, two additional steel bars in the same horizontal plane are fixedly connected by connecting steel bars, and both ends of the connecting steel bars are connected to the structural steel bars.

[0014] Furthermore, it also includes a sealing strip, which forms an induced seam after the induced strip is removed, and the sealing strip is arranged in the induced seam; the sealing strip is a weather-resistant glue with the same color as the concrete.

[0015] Furthermore, the waterstop is a rubber waterstop, and the plane where the waterstop is located is perpendicular to the plane where the insertion portion is located.

[0016] Furthermore, both ends of the limiting portion are fixed to the template by self-tapping screws.

[0017] The utility model has the following beneficial effects:

[0018] 1. The utility model provides an induced joint structure for ultra-long thin-shell plain concrete components. Opposite induced strips are set on both sides of the structure, and additional steel bars are set between the induced strips. The additional steel bars are connected to the structural steel bars through connecting steel bars to ensure the connection strength, reduce the limitation of the structural strength on the number of induced joints, and improve the anti-leakage ability of the concrete structure.

[0019] 2. The utility model provides an induced joint structure for ultra-long thin-shell plain concrete components. Through holes are arranged at intervals at the outer end of the insertion part to provide construction workers with operating points, and the width of the inner end of the insertion part gradually decreases, which facilitates the removal of the induction strip and improves construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the induced seam structure involved in the present utility model;

[0021] Figure 2 This is a structural schematic diagram of the blocking strip involved in the utility model.

[0022] In the figure: 1-concrete component, 2-formwork, 3-induction strip, 31-limiting part, 32-insertion part, 4-waterstop, 5-additional steel bar, 6-connecting steel bar, 7-sealing strip. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] like Figure 1 As shown, the utility model provides an induced joint structure for an ultra-long thin-shell plain concrete component, comprising a concrete component 1, a formwork 2, an induction strip 3, a waterstop 4 and an additional steel bar 5; structural steel bars are arranged in the concrete component 1, on which induced joints are arranged at intervals, and the structural steel bars are disconnected at the induced joints; the formwork 2 is arranged on both sides of the concrete component 1; the induction strips 3 are symmetrically arranged on the two formworks 2 to form an induced joint, and the induction strip 3 includes a limiting portion 31 and an inserting portion 32, the limiting portion 31 is connected to the formwork 2 to fix the position of the induction strip 3; the inserting portion 32 passes through the formwork 2 and enters the interior of the concrete component 1; a gap is set between the two inserting portions 32; the waterstop 4 is set in the gap between the two induction strips 3; the additional steel bar 5 is set in the gap between the two induction strips 3, and its two ends are respectively arranged in the concrete component 1 on both sides of the induced joint to strengthen the connection at the induced joint and avoid affecting the structural strength of the concrete component 1 due to the number of induced joints set.

[0025] The concrete component 1 is an extra-long thin-shell plain concrete wall.

[0026] like Figure 2 As shown, an induced joint structure for an ultra-long thin-shell plain concrete component also includes a sealing strip 7, with the interior of the concrete component 1 as the inward direction and the exterior as the outward direction. After the concrete component 1 is cast and formed, the inducing strip 3 is removed, and the concrete component 1 forms an induced joint at the position of the inducing strip 3. The sealing strip 7 is arranged in the induced joint. Preferably, the sealing strip 7 is filled with weather-resistant glue of the same color as the concrete.

[0027] The guide strip 3 runs vertically throughout its entire length, with a stopper 31 and an insert 32 arranged in a cross pattern. The ends of the stopper 31 are secured to the formwork 2 with self-tapping screws. The cross-sectional width of the insert 32 within the concrete member 1 gradually narrows toward the inner end, facilitating easy removal of the guide strip 3 after the concrete structure is formed. Through holes are spaced from top to bottom at the outer end of the insert 32, making it easier for construction workers to handle the guide strip.

[0028] The waterstop 4 is a rubber waterstop, and the plane where the waterstop 4 is located is perpendicular to the plane where the insertion portion 32 is located.

[0029] The additional steel bars 5 are arranged on both sides of the water stop 4 and are spaced apart from each other from top to bottom. Preferably, the two additional steel bars 5 in the same horizontal plane are connected by connecting steel bars 6, and both ends of the connecting steel bars 6 are connected to the structural steel bars, connecting the additional steel bars 5 and the structural steel bars into one.

[0030] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An induced joint structure for ultra-long thin shell plain concrete components, characterized by: The invention comprises a concrete member (1), a formwork (2), an induction strip (3), a water stop (4) and an additional steel bar (5); structural steel bars are arranged in the concrete member (1), induction joints are arranged at intervals on the structural steel bars, and the structural steel bars are disconnected at the induction joints; the formwork (2) is arranged on both sides of the concrete member (1); the induction strips (3) are symmetrically arranged on the two formworks (2), the inner ends of the induction strips (3) are inserted into the concrete member (1), and a gap is arranged between the inner ends of the two induction strips (3); the water stop (4) is arranged in the gap between the two induction strips (3); the additional steel bar (5) is arranged in the gap between the two induction strips (3), and the two ends of the additional steel bar (5) are respectively arranged in the concrete member (1) on both sides of the induction joint.

2. The induced joint structure for ultra-long thin-shell bare concrete components according to claim 1, characterized in that: The induction strip (3) comprises a limiting portion (31) and an inserting portion (32); the limiting portion (31) is connected to the formwork (2); the inserting portion (32) passes through the formwork (2) and enters the interior of the concrete component (1), with a gap being provided between two opposing inserting portions (32).

3. The induced joint structure for an ultra-long thin-shell bare concrete member according to claim 2, characterized in that: The induction strip (3) is arranged vertically throughout the entire length; the limiting portion (31) and the inserting portion (32) are arranged in a cross-like manner.

4. The induced joint structure for an ultra-long thin-shell bare concrete member according to claim 2, characterized in that: The cross-sectional width of the insertion portion (32) located in the concrete component (1) gradually narrows toward the inner end, and through holes are provided at intervals from top to bottom at the outer end.

5. The induced joint structure for an ultra-long thin-shell bare concrete member according to claim 1, characterized in that: The additional steel bars (5) are arranged on both sides of the water stop (4) and are spaced apart from top to bottom.

6. The induced joint structure for an ultra-long thin-shell bare concrete member according to claim 5, characterized in that: Two additional steel bars (5) in the same horizontal plane are fixedly connected by a connecting steel bar (6), and both ends of the connecting steel bar (6) are connected to the structural steel bar.

7. The induced joint structure for an ultra-long thin-shell bare concrete member according to claim 1, characterized in that: It also includes a blocking strip (7), wherein an induction joint is formed after the induction strip (3) is removed, and the blocking strip (7) is arranged in the induction joint; the blocking strip (7) is a weather-resistant adhesive of the same color as concrete.

8. The induced joint structure for an ultra-long thin-shell bare concrete member according to claim 2, characterized in that: The waterstop (4) is a rubber waterstop, and the plane where the waterstop is located is perpendicular to the plane where the insertion portion (32) is located.

9. The induced joint structure for an ultra-long thin-shell bare concrete member according to claim 2, characterized in that: Both ends of the limiting portion (31) are fixed to the template (2) via self-tapping screws.

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