Novel composite beam
By using the combined structure of constraints, polymers and steel beams in the reinforced concrete beams, the resources consumption and hydration heat thermal heat of reinforced concrete beam are solved, and the effect of reducing the amount of material, reducing the risk of cracks, and increasing the beam bearing capacity.
Patent Information
- Application Number
- CN202420615105.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-28
- Publication Date
- 2025-01-28
- Estimated Expiration
- 2034-03-28
AI Technical Summary
In construction projects, the production and use of reinforced concrete beams lead to resource consumption and environmental pressure, especially when the beams are large, excessive hydration heat and crack problems are prone to occur.
A new type of combined beam, including constraints, polymers and steel beams. The constraint block consists of a block and a reinforced cage. The block is built into the reinforced cage. The gap in the polymer fills the space between the binding block and the space beam.
By reducing the dosage of cement, sand, and stone, reducing hydration heat and temperature difference, reducing the risk of cracking in the beam, while increasing the intensity and delay of the binding of blocks and polymers, and improving the bearing capacity and construction efficiency of the beam.
Smart Images
Figure CN222413721U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of structures, and particularly relates to a novel composite beam. Background Art
[0002] In construction projects, reinforced concrete beams are made of steel bars and concrete, and use a lot of stone, sand, and cement materials, which puts a lot of pressure on our resources and the environment. And when the beam is large, it faces problems such as excessive hydration heat and cracks. Utility Model Content
[0003] The utility model provides a novel composite beam, aiming at reducing the amount of cement, sand and stone in the composite beam.
[0004] To achieve the above purpose, the utility model adopts the following technical solutions.
[0005] A new type of composite beam, the new type of composite beam comprises a restraint block, a polymer and a steel beam; the restraint block comprises a block and a steel cage; the block is built in the steel cage; the steel beam comprises a steel piece at the bottom of the beam and a steel plate at the side of the beam, the steel piece at the bottom of the beam and the steel plate at the side of the beam form a beam box and are fixedly connected; the restraint block is surrounded by the steel piece at the bottom of the beam and the steel plate at the side of the beam; the polymer fills the gap in the restraint block; the polymer is filled between the restraint block and the steel beam.
[0006] Preferably, the steel cage is closed at the ends; the hole size of the steel cage is smaller than the size of the block at that location; and the steel cage comprises side walls and end parts.
[0007] Preferably, the end member is formed by extending the side wall, or a dedicated end closing member is connected to the side wall as a whole; and polymer is provided at the holes of the steel cage.
[0008] Preferably, the steel beam has a beam top steel plate; the beam top steel plate is fixedly connected to the beam side steel plates; and the beam top steel plate is provided with an opening.
[0009] Preferably, the steel member at the bottom of the beam is a steel section or a steel plate.
[0010] Preferably, beam reinforcement is placed in the steel beam; the beam reinforcement includes beam longitudinal reinforcement and beam transverse reinforcement.
[0011] Preferably, there is a gap between the beam reinforcement and the beam steel plate; the new composite beam has a shear member inside the steel beam, and the two are fixedly connected.
[0012] Compared with the prior art, the utility model has the following characteristics and beneficial effects.
[0013] 1. By placing blocks inside the steel beam, the amount of cement, sand and stone used can be reduced, and the hydration heat generated during the construction of the beam can be reduced, thereby reducing its cracking.
[0014] 2. A steel cage is placed inside the beam to constrain the blocks and polymers therein, thereby increasing the strength and ductility of the bond between the blocks and polymers.
[0015] 3. The bottom steel structure of the beam is steel section, which is welded to the side steel plate to reduce the damage of z-direction welding.
[0016] 4. The steel beam is box-shaped and does not require formwork, which is convenient for construction. It also has a certain restraining effect on the built-in polymer, thereby improving the ductility of the beam. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] The utility model is further described in detail below in conjunction with the accompanying drawings.
[0018] Figure 1 This is a schematic diagram of the transverse section of the new composite beam. Figure 1 .
[0019] Figure 2 This is a schematic diagram of the longitudinal section of the new composite beam. Figure 1 .
[0020] Figure 3 This is a schematic diagram of the transverse section of the new composite beam. Figure 2 .
[0021] Figure 4 This is a schematic diagram of the longitudinal section of the new composite beam. Figure 2 .
[0022] Figure 5 This is a schematic diagram of the transverse section of the new composite beam. Figure 3 .
[0023] Figure numerals: 1 - block, 2 - reinforcement cage, 3 - polymer, 4 - restraint block, 5 - beam steel plate, 5.1 - beam bottom steel piece, 5.2 - beam side steel plate, 5.3 - beam top steel plate, 6 - beam reinforcement, 6.1 - beam longitudinal reinforcement, 6.2 - beam transverse reinforcement. DETAILED DESCRIPTION
[0024] In order to better understand the purpose, technical solution and function of the utility model, the utility model is further described in detail below in conjunction with the accompanying drawings. Here, the illustrative embodiments of the utility model and their descriptions are used to explain the utility model, but are not intended to limit the utility model.
[0025] In the description of the present utility model, it is to be understood that the terms "include / comprise", "consist of..." or any other variations thereof are intended to cover non-exclusive inclusion, so that a product, device, process or method including a series of elements includes not only those elements, but also other elements not explicitly listed when necessary, or also includes elements inherent to such product, device, process or method. In the absence of further restrictions, the elements defined by the phrases "include / comprise..." or "consist of..." do not exclude the presence of other identical elements in the product, device, process or method including the elements.
[0026] In the present utility model, unless otherwise clearly specified and limited, the term "fixed connection" should be understood in a broad sense, for example: it can be a sleeve connection, a lap joint, a welding connection, a bolt connection, or a combination of the above connections; the terms "installation", "connection", "connected" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two components or the interaction relationship between two components; the term "through-length steel bar" means that the steel bar is continuous without disconnection, or the steel bar is disconnected but the disconnected steel bars are fixedly connected. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0027] The following is a detailed description of the implementation of the present invention using preferred implementation methods in conjunction with the accompanying drawings.
[0028] like Figure 1 and Figure 2 As shown, the novel composite beam includes a restraint block 4, a polymer 3 and a steel beam 5. The restraint block 4 includes a block 1 and a steel cage 2. The block 1 is built in the steel cage 2. The steel beam 5 includes a beam bottom steel member 5.1 and a beam side steel plate 5.2. The beam bottom steel member 5.1 and the beam side steel plate 5.2 form a beam box and are fixedly connected. The restraint block 4 is surrounded by the beam bottom steel member 5.1 and the beam side steel plate 5.2. The polymer 3 fills the gap in the restraint block 4. The polymer 3 fills the space between the restraint block 4 and the steel beam 5.
[0029] In the utility model, the steel cage restrains the block, and is cast as a whole with the polymer, thereby improving its ductility and bonding strength. The restraint block can effectively replace the polymer, reduce the sand, stone and cement used in the polymer, thereby reducing the hydration heat and temperature difference, and reducing the cracking of the polymer. The steel beam is box-shaped, which can avoid the need for formwork, increase the construction speed, and improve the bearing capacity and ductility of the beam. The polymer is cement mortar, concrete, and organic resin.
[0030] In specific implementation, the steel cage 2 is closed at the end, and the hole size of the steel cage 2 is at least 1 mm smaller than the size of the block 1 at that location. This allows the steel cage to effectively constrain the block and form a whole with the polymer.
[0031] In a specific implementation, the end piece 2.2 is formed by extending the side wall 2.1, or a dedicated end closing piece 2.2 is connected to the side wall 2.1 as a whole.
[0032] During specific implementation, polymer 3 is provided at the holes of steel cage 2 .
[0033] When implementing it, Figure 3 and Figure 4 As shown, the steel beam 5 has a beam top steel plate 5.3, which is fixedly connected to the beam side steel plate 5.2, and has an opening in the beam top steel plate 5.3, so as to improve the negative moment bearing capacity of the beam.
[0034] In specific implementation, the steel member 5.1 at the bottom of the beam is a steel section or a steel plate, which can reduce welding.
[0035] When implementing it, Figure 5 As shown, beam reinforcement 6 is placed in the steel beam 5, and the beam reinforcement 6 includes beam longitudinal reinforcement 6.1 and beam transverse reinforcement 6.2, so as to further improve the bearing capacity and ductility of the beam.
[0036] During specific implementation, there is a gap between the beam reinforcement 6 and the beam steel plate 5. There is a shear member inside the steel beam 5, and the two are fixedly connected.
[0037] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any modifications, equivalent substitutions and improvements made by any technician familiar with the technical field within the technical scope disclosed in the present invention should be covered by the protection scope of the present invention.
Claims
1. A new type of composite beam, characterized in that: The novel composite beam comprises a restraining block (4), a polymer (3) and a steel beam (5); the restraining block (4) comprises a block (1) and a steel cage (2); the block (1) is built in the steel cage (2); the steel beam (5) comprises a beam bottom steel member (5.1) and a beam side steel plate (5.2), the beam bottom steel member (5.1) and the beam side steel plate (5.2) forming a beam box body and being fixedly connected; the restraining block (4) is surrounded by the beam bottom steel member (5.1) and the beam side steel plate (5.2); the polymer (3) fills the gap in the restraining block (4); the polymer (3) fills the space between the restraining block (4) and the steel beam (5).
2. The novel composite beam according to claim 1 is characterized in that: The steel cage (2) is closed at the end; the hole size of the steel cage (2) is smaller than the size of the block (1) at that location; the steel cage (2) comprises a side wall and an end member.
3. The novel composite beam according to claim 2 is characterized in that: The end parts are formed by extending the side walls, or the end parts are connected to the side walls as a whole; and polymers (3) are provided at the holes of the steel cage (2).
4. The novel composite beam according to claim 1 is characterized in that: The steel beam (5) has a beam top steel plate (5.3); the beam top steel plate (5.3) is fixedly connected to the beam side steel plate (5.2); and the beam top steel plate (5.3) is provided with an opening.
5. The novel composite beam according to claim 1 is characterized in that: The steel member (5.1) at the bottom of the beam is a steel section or a steel plate.
6. The novel composite beam according to claim 1 is characterized in that: Beam reinforcement (6) is placed inside the steel beam (5); the beam reinforcement (6) comprises beam longitudinal reinforcement (6.1) and beam transverse reinforcement (6.2).
7. The novel composite beam according to claim 6 is characterized in that: There is a gap between the beam reinforcement (6) and the steel beam (5); there is a shear-resistant member inside the steel beam (5), and the two are fixedly connected.