Connecting joint structure of two precast concrete planks to be spliced and concrete beam
By welding steel plates into the casting space between the precast concrete slab and the beam and then pouring concrete to form an integral connection node, the problems of unreliable connection and uneven stress were solved, achieving a more efficient and safer construction effect.
Patent Information
- Application Number
- CN202520206322.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-10
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2035-02-10
AI Technical Summary
Existing connections between precast concrete slabs and concrete beams suffer from unreliable connections and uneven stress distribution, especially common in sleeve grouting connections.
The design employs load-bearing plate assemblies and locking components. Steel plates are welded together within the casting space of precast concrete slabs and beams, and concrete is poured to form cast-in-place components. Stirrups are then used to anchor the entire structure, forming an integral connection node.
It improves the strength and uniformity of the connection, simplifies the construction process, reduces safety risks, and enhances construction efficiency and economic benefits.
Smart Images
Figure CN223824355U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to building structure technical field, especially relate to a connecting joint structure of two prefabricated concrete plates and concrete beams to be spliced. BACKGROUND
[0002] At present, building industrialization, standardization gradually become the important development direction of building industry. Among them, the pros and cons of the connection between prefabricated concrete beam and slab have important influence on the safety and stability of the overall structure, at present, two prefabricated concrete plates to be spliced are generally placed on the top of prefabricated concrete beam when actual butt joint, and multiple steel sleeve connection, sleeve grouting connection and other ways are used, but these ways have the problem of non-dense connection, leading to unfirm joint connection and uneven stress performance, therefore, the utility model provides a connecting joint structure of two prefabricated concrete plates and concrete beams to be spliced to solve the above problems. INVENTION CONTENTS
[0003] In order to solve the above problems, the utility model provides a connecting joint structure of two prefabricated concrete plates and concrete beams to be spliced, solves the problems of unfirm joint connection and uneven stress performance.
[0004] The utility model discloses a connecting joint structure of two prefabricated concrete plates and concrete beams to be spliced, including:
[0005] Pouring space, forms in the top of prefabricated concrete beam and between the opposite two ends of two prefabricated concrete plates to be spliced;
[0006] Two stress plate groups are respectively arranged at the opposite two ends of two prefabricated concrete plates to be spliced, and the first end of the stress plate group is embedded in the corresponding prefabricated concrete plate, and the second end extends to the pouring space;
[0007] Locking piece is used for welding the second end of two stress plate groups;And
[0008] Cast-in-place piece is formed after pouring concrete in the pouring space, and two stress plate groups, locking piece, two prefabricated concrete plates to be spliced and prefabricated concrete beam are anchored into a whole through the cast-in-place piece.
[0009] The further improvement of the connecting joint structure of two prefabricated concrete plates and concrete beams to be spliced of the utility model lies in that the stress plate group includes upper layer plate and lower layer plate, the first end of the upper layer plate is embedded in the upper part of the corresponding prefabricated concrete plate, and the second end extends to the pouring space, and the first end of the lower layer plate is embedded in the lower part of the corresponding prefabricated concrete plate, and the second end extends to the pouring space;
[0010] The locking piece comprises an upper connecting plate and a lower connecting plate, two ends of the upper connecting plate are respectively welded with second ends of two upper layers of two precast concrete plates to be spliced, and two ends of the lower connecting plate are respectively welded with second ends of two lower layers of the two precast concrete plates to be spliced.
[0011] The further improvement of the connecting joint structure of the two precast concrete plates to be spliced and the concrete beam lies in further comprising a stirrup which is embedded in the precast concrete beam at a lower end and extends upward to a pouring space and is anchored by the cast-in-place piece.
[0012] The further improvement of the connecting joint structure of the two precast concrete plates to be spliced and the concrete beam lies in that upper portions of opposite two ends of the two precast concrete plates to be spliced are all in a slope shape from top to bottom, and the pouring space is formed in a horn mouth shape.
[0013] Compared with the prior art, the connecting joint structure has the following beneficial effects:
[0014] The connecting joint structure does not need sleeve grouting connection, can well solve the pain points and difficulties of the existing sleeve grouting connection technology, can adapt to various complex scenes, is simple to manufacture, has high economic benefits and high practicality, greatly improves the on-site construction progress and construction convenience, better ensures the safety in the installation process of the precast concrete member, reduces the occurrence of safety accidents, and has great application prospect. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 The overall structure schematic diagram of the utility model is shown.
[0016] In the drawing: 1, precast concrete plate; 2, precast concrete beam; 3, upper layer; 4, upper connecting plate; 5, lower layer; 6, lower connecting plate; 7, pouring space; 8, stirrup. DETAILED DESCRIPTION
[0017] In order to solve the problems of unfirm joint connection and uneven stress performance, the utility model provides a connecting joint structure of two precast concrete plates to be spliced and a concrete beam.
[0018] Referring to Figure 1 The connecting joint structure of two precast concrete plates to be spliced and a concrete beam comprises:
[0019] A pouring space 7 is formed at the top of the precast concrete beam 2 and between opposite two ends of the two precast concrete plates 1 to be spliced.
[0020] Two force plate groups are arranged at opposite ends of the two prefabricated concrete plates 1 to be spliced, the first end of the force plate group is embedded in the corresponding prefabricated concrete plate 1, and the second end extends outward into the pouring space 7;
[0021] A locking piece is used to weld the second end of the two force plate groups; and
[0022] The cast-in-place piece is formed after pouring concrete in the pouring space 7, and the two force plate groups, the locking piece, the two prefabricated concrete plates 1 to be spliced, and the prefabricated concrete beam 2 are anchored into a whole through the cast-in-place piece.
[0023] Specifically, the number of force plate groups on each prefabricated concrete plate 1 can be set according to actual needs, and the number of locking pieces is consistent with the number of force plate groups on each prefabricated concrete plate 1;
[0024] By connecting and fixing the embedded force plate groups on the two prefabricated concrete plates 1 to be spliced in the form of welding, and then pouring concrete in the pouring space 7 to form a cast-in-place piece, the relative ends of the two prefabricated concrete plates 1 to be spliced and the top of the prefabricated concrete beam 2 are anchored, which is simple to make, high in economic benefit, and strong in practicality.
[0025] The force plate group includes an upper plate 3 and a lower plate 5, the first end of the upper plate 3 is embedded in the upper part of the corresponding prefabricated concrete plate 1, and the second end extends outward into the pouring space 7, the first end of the lower plate 5 is embedded in the lower part of the corresponding prefabricated concrete plate 1, and the second end extends outward into the pouring space 7;
[0026] The locking piece includes an upper connecting plate 4 and a lower connecting plate 6, the two ends of the upper connecting plate 4 are respectively welded with the second ends of the two upper plates 3 of the two prefabricated concrete plates 1 to be spliced, and the two ends of the lower connecting plate 6 are respectively welded with the second ends of the two lower plates 5 of the two prefabricated concrete plates 1 to be spliced.
[0027] Specifically, referring to Figure 1 As shown in the embodiment, the upper plate 3, the lower plate 5, the upper connecting plate 4, and the lower connecting plate 6 are all steel plates, and the welding method can adopt butt welding or lap welding;
[0028] Further, through holes are formed in the upper plate 3 and the lower plate 5 to communicate the upper and lower spaces of the pouring space 7, facilitating pouring of the entire pouring space 7; for example, the number of upper plates 3 is multiple and arranged at intervals, and the number of lower plates 5 is multiple and arranged at intervals.
[0029] By replacing the steel bars with steel plates and connecting and fixing them in the form of welding, the pain points and difficulties of traditional sleeve grouting connection technology can be avoided.
[0030] The stirrup 8 is embedded in the prefabricated concrete beam 2 at the lower end and extends upward to the pouring space 7 at the upper end and is anchored by the cast-in-place member.
[0031] Specifically, the number of the stirrups 8 can be set according to actual requirements, and the positions of the stirrups 8 in the pouring space 7 are staggered with the positions of the lower layer plates 5.
[0032] By using the above design, the cast-in-place member and the prefabricated concrete beam 2 can be anchored more firmly by the stirrups 8, thereby improving the firmness of the connection between the two ends of the prefabricated concrete plates 1 and the prefabricated concrete beam 2.
[0033] The upper parts of the opposite two ends of the two prefabricated concrete plates 1 to be spliced are both in a slope shape from top to bottom, and the pouring space 7 is formed in a horn shape.
[0034] By using the above design, when the cast-in-place member is held in the hand, it can not only be supported by the force receiving plate group and the prefabricated concrete beam 2, but also be supported by the two ends of the prefabricated concrete plates 1, so that the connection node structure bears force better and uniformly. Moreover, when the concrete is poured into the pouring space 7, the concrete can slide in by relying on the two ends of the slope, which is conducive to pouring construction.
[0035] It should be noted that in this text, relational terms such as first and second are used merely to distinguish one entity or action from another, without necessarily requiring or implying any such actual relationship or order between such entities or actions. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment.
[0036] The above embodiments of the present application are described in detail in combination with the drawings, and those skilled in the art can make various changes to the embodiments according to the above description. Therefore, some details in the embodiments should not constitute a limitation on the present application, and the scope of protection of the present application will be defined by the appended claims.
Claims
1. A connection node structure for two precast concrete slabs to be spliced and a concrete beam, characterized in that, include: The casting space is formed on top of the precast concrete beam and between the opposite ends of the two precast concrete slabs to be spliced. Two load-bearing plate assemblies are respectively set at the opposite ends of the two precast concrete slabs to be spliced. The first end of the load-bearing plate assembly is embedded in the corresponding precast concrete slab, and the second end extends outward into the pouring space. Locking element, used to weld the second ends of the two load-bearing plate assemblies together; as well as The cast-in-place component is formed by pouring concrete into the casting space and allowing it to solidify. The cast-in-place component anchors two load-bearing plate assemblies, the locking component, two precast concrete slabs to be spliced, and the precast concrete beam into a whole.
2. The connection node structure between two precast concrete slabs and a concrete beam as described in claim 1, characterized in that, The load-bearing plate assembly includes an upper plate and a lower plate. The first end of the upper plate is embedded in the upper part of the corresponding precast concrete slab, and the second end extends outward into the pouring space. The first end of the lower plate is embedded in the lower part of the corresponding precast concrete slab, and the second end extends outward into the pouring space. The locking component includes an upper connecting plate and a lower connecting plate. The two ends of the upper connecting plate are respectively welded to the second ends of the two upper layers of the two precast concrete slabs to be spliced, and the two ends of the lower connecting plate are respectively welded to the second ends of the two lower layers of the two precast concrete slabs to be spliced.
3. The connection node structure of the two precast concrete slabs and the concrete beam to be spliced as described in claim 1, characterized in that, It also includes stirrups whose lower end is embedded in the precast concrete beam, whose upper end extends upward to the casting space and is anchored by the cast-in-place component.
4. The connection node structure between two precast concrete slabs and a concrete beam to be spliced as described in claim 1, characterized in that, The upper parts of the two precast concrete slabs to be spliced at opposite ends are sloped from top to bottom, forming a funnel-shaped pouring space.