CN111794438A - Weight-reducing reinforced composite beam - Google Patents
Weight-reducing reinforced composite beam Download PDFInfo
- Publication number
- CN111794438A CN111794438A CN202010660475.9A CN202010660475A CN111794438A CN 111794438 A CN111794438 A CN 111794438A CN 202010660475 A CN202010660475 A CN 202010660475A CN 111794438 A CN111794438 A CN 111794438A
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- China
- Prior art keywords
- bonding
- cage
- prefabricated
- composite beam
- weight
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Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C3/20—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of concrete or other stone-like material, e.g. with reinforcements or tensioning members
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
- E04C5/06—Reinforcing elements of metal, e.g. with non-structural coatings of high bending resistance, i.e. of essentially three-dimensional extent, e.g. lattice girders
- E04C5/0636—Three-dimensional reinforcing mats composed of reinforcing elements laying in two or more parallel planes and connected by separate reinforcing parts
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
- E04C5/06—Reinforcing elements of metal, e.g. with non-structural coatings of high bending resistance, i.e. of essentially three-dimensional extent, e.g. lattice girders
- E04C5/0636—Three-dimensional reinforcing mats composed of reinforcing elements laying in two or more parallel planes and connected by separate reinforcing parts
- E04C5/064—Three-dimensional reinforcing mats composed of reinforcing elements laying in two or more parallel planes and connected by separate reinforcing parts the reinforcing elements in each plane being formed by, or forming a, mat of longitunal and transverse bars
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/16—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Joining Of Building Structures In Genera (AREA)
- Rod-Shaped Construction Members (AREA)
Abstract
The application discloses a weight-reducing reinforced composite beam, which is applied to the field of constructional engineering and solves the technical problem that after concrete is repeatedly affected by thermal expansion and cold contraction, a gap is easily generated between the concrete and a reinforcement cage, so that the bonding force between a concrete block and the reinforcement cage is reduced, and the strength of the composite beam is affected; the method has the technical effect of improving the bonding force between the concrete block and the reinforcement cage, thereby improving the overall strength of the composite beam.
Description
Technical Field
The application relates to the technical field of constructional engineering, in particular to a weight-reduction reinforced composite beam.
Background
The superposed beam is a common prefabricated component in an assembly type building, the superposed beam is a beam cast with concrete twice, the prefabricated beam is manufactured in a prefabricated field for the first time, and is manufactured in a construction field for the second time, and after the prefabricated beam is hoisted and placed, the concrete on the upper part is cast to form a cast-in-place beam, so that the prefabricated beam and the cast-in-place beam are connected into a whole.
The prior Chinese patent with publication number CN205894485U discloses an assembled prefabricated composite beam with steel structure connecting nodes, which adopts a reinforced concrete structure and comprises a steel bar part and a concrete part, wherein the steel bar part comprises a composite beam steel reinforcement cage and two steel structure connecting nodes, and the two steel structure connecting nodes are respectively connected with two ends of the composite beam steel reinforcement cage; the two steel structure connecting nodes are exposed out of the concrete part, and the cross section size of the steel structure connecting nodes is smaller than or equal to that of the superposed beam.
The above prior art solutions have the following drawbacks: in the great area of the difference in temperature round the clock, the concrete of coincide roof beam can be heated expansion and contraction with cold's influence, and the expansion and contraction with heat rate of reinforcing bar is very little can be neglected almost, produces the gap with the steel reinforcement cage after the earth that mixes receives the expansion and contraction with heat influence repeatedly easily, makes the cohesive force variation of concrete piece and steel reinforcement cage to make the intensity of coincide roof beam receive the influence.
Content of application
The utility model aims at providing a subtract heavy strenghthened type composite beam, its advantage is that the adhesion force of concrete piece and steel reinforcement cage is improved to improve the holistic intensity of composite beam.
The technical purpose of the application is realized by the following technical scheme: the weight-reducing reinforced composite beam comprises a reinforcement cage, wherein the reinforcement cage comprises a prefabricated cage and a cast-in-place cage, and the weight-reducing reinforced composite beam is characterized in that a plurality of bonding rods with C-shaped cross sections are fixed in the prefabricated cage, and the bonding rods are arranged along the length extending direction of the prefabricated cage.
Through above-mentioned technical scheme, the cross section of bonding pole sets up to C shape, makes the bonding pole can produce certain elastic deformation, receives the temperature influence when taking place expend with heat and contract with cold at the concrete piece, and the bonding pole can be along with the deformation of concrete, and produces the elastic deformation of the inward shrinkage or the elastic deformation of outside reconversion, makes the outer wall of bonding pole keep laminating with the concrete piece to guarantee the whole cohesive force with the concrete piece of prefabricated cage, thereby improve the holistic intensity of superposed beams.
The application is further configured to: the bonding rods are three, a plurality of triangular fixing frames are vertically fixed between the three bonding rods, and each corner of each triangular fixing frame is fixed with the bonding rod.
Through above-mentioned technical scheme, each bonding pole parallel arrangement, bonding pole set up to three, make the locating position of each bonding pole be triangle-shaped, and each bonding pole is fixed through a plurality of triangle-shaped mounts, and the stability of triangle-shaped mount is better, and difficult emergence deformation makes each bonding pole more stable each other.
The application is further configured to: the triangular fixing frame is set to be a regular triangle, a Y-shaped supporting frame is arranged in the triangular fixing frame, and the Y-shaped supporting frame is vertically connected with each side of the triangular fixing frame.
Through above-mentioned technical scheme, regular triangle's stability is stronger, makes the atress of triangle mount more even, and Y type support frame plays the effect of support to each limit of triangle mount, prevents that each limit of triangle mount from taking place to warp when the atress to make the position of each bonding pole in precast beam more stable.
The application is further configured to: the outer side cover of bonding pole is equipped with the plastic envelope membrane, the outer wall laminating of plastic envelope membrane and bonding pole.
Through above-mentioned technical scheme, when pouring the concrete to prefabricated cage, the plastic envelope membrane can block that the concrete enters into the bonding pole through the open end of bonding pole. The deformation of the inner concrete block and the deformation of the outer concrete block of the bonding rod are prevented from being different, the deformation of the whole bonding rod is prevented from being influenced, and the bonding force between the whole precast beam and the concrete blocks is reduced.
The application is further configured to: and a plurality of connecting rods are vertically fixed on each bonding rod respectively, each connecting rod faces to the center of the triangular fixing frame, and the connecting rods are fixedly connected with the prefabricated cage.
Through above-mentioned technical scheme, make each bonding rod and prefabricated cage fixed through the connecting rod, each connecting rod is to the center of triangle mount, makes the angle between the connecting rod on the bonding rod the same. When the connecting rod is stressed, the force applied to the triangular fixing frame is more uniform, and the stability of the triangular fixing frame is ensured.
The application is further configured to: and reinforcing steel bars at two ends of the prefabricated cage penetrate through the prefabricated beam, and two ends of the bonding rod penetrate through the prefabricated beam.
Through above-mentioned technical scheme, through the reinforcing bar at prefabricated cage both ends and the both ends of bonding pole, be convenient for install and fix the superposed beams, make superposed beams and other building body coupling more stable.
The application is further configured to: and connecting plates are respectively fixed at two ends of the bonding rod.
Through above-mentioned technical scheme, be convenient for connect the bonding pole of each coincide roof beam through the connecting plate, prevent to make the bonding pole take place to deform in the process of connecting the bonding pole.
The application is further configured to: the connecting plate is horizontally arranged, and a connecting hole is formed in the connecting plate.
Through above-mentioned technical scheme, can use bolt and nut to connect the bonding pole of each superposed beam through the connecting hole on the connecting plate, make installation and dismantlement more simple and convenient.
The application is further configured to: and a plurality of fixing hoops are arranged on the outer sides of the prefabricated cage and the cast-in-place cage.
Through the technical scheme, the prefabricated cage and the cast-in-place cage are fixed through the fixing hoop, so that the laminated beam is integrally firmer, and the integral strength of the laminated beam is improved.
The application is further configured to: the open end angle of the bonding rod is less than 90 degrees.
Through above-mentioned technical scheme, when making the bonding rod can take place deformation, guarantee the intensity of bonding rod.
To sum up, the beneficial technical effect of this application does:
1. the bonding rod can generate inward-shrinkage elastic deformation or outward-recovery elastic deformation along with the deformation of the concrete, so that the outer wall of the bonding rod is kept attached to the concrete block;
2. each bonding rod is fixed by a plurality of triangular fixing frames, the triangular fixing frames are good in stability and not easy to deform, and the bonding rods are stable;
and 3, the Y-shaped support frame plays a role in supporting each side of the triangular fixing frame, and each side of the triangular fixing frame is prevented from deforming when stressed, so that the positions of the bonding rods in the precast beam are more stable.
Drawings
Fig. 1 is an overall configuration diagram of the present embodiment;
fig. 2 is a schematic structural view of the reinforcement cage of the present embodiment;
FIG. 3 is a side view of the reinforcement cage of the present embodiment;
fig. 4 is a schematic structural view of the adhesive bar of the present embodiment.
Description of the drawings, 1, a reinforcement cage; 2. prefabricating a cage; 3. casting a cage in situ; 4. a bonding rod; 5. a triangular fixing frame; 6. a Y-shaped support frame; 7. a support bar; 9. a connecting rod; 10. a connecting plate; 11. a fixing hoop; 12. prefabricating a beam; 13. and (5) casting the beam in situ.
Detailed Description
The present application is described in further detail below with reference to the attached drawings.
Example (b):
referring to fig. 1 and 2, the weight-reduction reinforced composite beam disclosed by the application comprises a precast beam 12 and a cast-in-place beam 13. Be provided with steel reinforcement cage 1 in the composite beam, steel reinforcement cage 1 includes prefabricated cage 2 and cast-in-place cage 3, and prefabricated cage 2 is located prefabricated roof beam 12 department, and cast-in-place cage 3 is located cast-in-place roof beam 13 department. The outer sides of the prefabricated cage 2 and the cast-in-place cage 3 are provided with a plurality of fixing hoops 11, so that the prefabricated cage 2 and the cast-in-place cage 3 are firmly fixed together.
Referring to fig. 3 and 4, three bonding rods 4 with C-shaped cross sections are arranged in the prefabricated cage 2, the open end angles of the bonding rods 4 are smaller than 90 degrees, the strength of the bonding rods 4 is ensured, and the three bonding rods 4 are arranged in parallel along the length extension direction of the prefabricated cage 2. A plurality of triangular fixing frames 5 are fixed among the three bonding rods 4, each side of each triangular fixing frame 5 is perpendicular to the bonding rods 4, each corner of each triangular fixing frame 5 is fixed with the outer wall of each bonding rod 4, and the mutual positions of the three bonding rods 4 are fixed through the triangular fixing frames 5. The triangle fixing frame 5 is set to be in a regular triangle shape, and the stability of the regular triangle is good, so that the triangle fixing frame 5 is not easy to deform, the positions of the bonding rods 4 are not easy to change, and the stability between the bonding rods 4 is ensured.
Referring to fig. 3, each bonding rod 4 is connected with a plurality of connecting rods 9, one end of each connecting rod 9 is vertically fixed to the bonding rod 4, and the other end of each connecting rod 9 is fixedly connected to the prefabricated cage 2, so that the bonding rods 4 are fixed in the prefabricated cage 2. Each connecting rod 9 is opposite to the center of the triangular fixing frame 5, so that the angles between the connecting rods 9 on each bonding rod 4 are the same, the connecting rods 9 are stressed, the force applied to the triangular fixing frame 5 is more uniform, and the stability of the triangular fixing frame 5 is ensured, so that the position of each bonding rod 4 in the prefabricated cage 2 cannot deviate.
Referring to fig. 3, a Y-shaped support frame 6 is arranged in the triangular fixing frame 5, the Y-shaped support frame 6 includes three support rods 7, one ends of the three support rods 7 are connected, and the other ends of the support rods 7 are respectively and vertically connected with each side of the triangular fixing frame 5. The Y-shaped support frame 6 plays a role in supporting each side of the triangular fixing frame 5 and prevents each side of the triangular fixing frame 5 from deforming when stressed.
Referring to fig. 1 and 3, after the prefabricated cage 2 and the cast-in-place cage 3 are woven and fixed, concrete is poured into the prefabricated cage 2 to form a prefabricated beam 12. The outer side of the bonding rod 4 is sleeved with a plastic packaging film, so that the plastic packaging film is attached to the outer wall of the bonding rod 4. When the prefabricated cage 2 is poured with concrete, the plastic package film can prevent the concrete from entering the bonding rod 4 through the opening end of the bonding rod 4. In the concrete solidification process, the concrete block can generate certain pressure for the bonding rod 4, the cross section of the bonding rod 4 is C-shaped, the bonding rod 4 can generate inward shrinkage deformation when being pressurized, the outer wall of the bonding rod 4 is kept attached to the concrete block in the deformation process, and the bonding force of the whole prefabricated cage 2 and the concrete block is guaranteed.
Referring to fig. 1 and 2, the reinforcing bars at the two ends of the prefabricated cage 2 pass through the prefabricated beam 12, so that the superposed beam is conveniently installed and fixed, and the superposed beam is more stably connected with other buildings.
Referring to fig. 1 and 4, both ends of the bonding rod 4 also penetrate the precast girders 12, and the connecting plates 10 are fixed to both ends of the bonding rod 4, respectively. When a plurality of superposed beams are required to be fixedly connected, after the reinforcing steel bars at the two ends of the prefabricated beams 12 are fixed, the connecting plates 10 at the two ends of the bonding rods 4 are fixed, the connecting plates 10 are provided with connecting holes, the connecting plates 10 of the superposed beams can be fixedly connected through bolts and nuts, and the connection stability of the superposed beams is improved.
The implementation principle of the embodiment is as follows: three bonding rods 4 with C-shaped cross sections are arranged in the prefabricated cage 2, the positions of the three bonding rods 4 are fixed through a triangular fixing frame 5, and each bonding rod 4 is fixed in the prefabricated cage 2 through a connecting rod 9. After the prefabricated cage 2 and the cast-in-place cage 3 are woven and fixed, concrete is poured into the prefabricated cage 2 to form the prefabricated beam 12. When the prefabricated cage 2 is poured with concrete, the plastic package film 8 can prevent the concrete from entering the bonding rod 4 through the opening end of the bonding rod 4. The in-process that the concrete solidifies can produce certain pressure for bonding pole 4, and bonding pole 4 can produce the elastic deformation of internal contraction when receiving pressure, and the outer wall of in-process bonding pole 4 and the concrete piece of deformation keep laminating until the concrete piece solidifies completely. When the concrete piece takes place expend with heat and contract with cold by the temperature influence, bonding rod 4 can be along with the deformation of concrete, and produce the elastic deformation of inside shrink or the elastic deformation of outside reconversion, makes the outer wall of bonding rod 4 keep laminating with the concrete piece to guarantee the whole adhesive force with the concrete piece of prefabricated cage 2, thereby improve the holistic intensity of superposed beam.
The embodiments of the present invention are preferred embodiments of the present application, and the scope of protection of the present application is not limited by the embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (10)
1. The weight-reducing reinforced composite beam comprises a reinforcement cage (1), wherein the reinforcement cage (1) comprises a prefabricated cage (2) and a cast-in-place cage (3), and is characterized in that a plurality of bonding rods (4) with C-shaped cross sections are fixed in the prefabricated cage (2), and the bonding rods (4) are arranged along the length extension direction of the prefabricated cage (2).
2. The weight-reducing reinforced composite beam as claimed in claim 1, wherein the number of the bonding rods (4) is three, a plurality of triangular fixing frames (5) are vertically fixed between the three bonding rods (4), and each corner of the triangular fixing frame (5) is fixed with the bonding rod (4).
3. The weight-reducing reinforced composite beam as claimed in claim 2, wherein the triangular fixing frame (5) is configured as a regular triangle, a Y-shaped supporting frame (6) is arranged in the triangular fixing frame (5), and the Y-shaped supporting frame (6) is vertically connected with each side of the triangular fixing frame (5).
4. The weight-reducing reinforced composite beam as claimed in claim 1, wherein the outer side of the bonding rod (4) is sleeved with a plastic packaging film, and the plastic packaging film is attached to the outer wall of the bonding rod (4).
5. A weight-reducing reinforced composite beam as claimed in claim 4, wherein a plurality of connecting rods (9) are vertically fixed on each bonding rod (4), each connecting rod (9) faces to the center of the triangular fixing frame (5), and the connecting rods (9) are fixedly connected with the prefabricated cage (2).
6. A weight-reducing reinforced composite beam according to claim 1, characterized in that the reinforcing steel bars at both ends of the prefabricated cage (2) pass through the prefabricated beam (12), and both ends of the adhesive rod (4) also pass through the prefabricated beam (12).
7. A weight-reducing reinforced composite beam according to claim 6, characterized in that the two ends of the bonding rod (4) are respectively fixed with a connecting plate (10).
8. A weight-reducing reinforced composite beam according to claim 7, characterized in that the connecting plate (10) is horizontally arranged, and the connecting plate (10) is provided with connecting holes.
9. A weight-reducing reinforced composite beam as claimed in claim 1, wherein the prefabricated cage (2) and the cast-in-place cage (3) are provided with a plurality of fixing hoops (11) on the outer side.
10. A weight-reducing reinforced composite beam according to claim 1, characterized in that the open end angle of the adhesive rod (4) is less than 90 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010660475.9A CN111794438B (en) | 2020-07-10 | 2020-07-10 | Weight-reducing reinforced composite beam |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010660475.9A CN111794438B (en) | 2020-07-10 | 2020-07-10 | Weight-reducing reinforced composite beam |
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| CN111794438A true CN111794438A (en) | 2020-10-20 |
| CN111794438B CN111794438B (en) | 2021-03-23 |
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| CN202010660475.9A Active CN111794438B (en) | 2020-07-10 | 2020-07-10 | Weight-reducing reinforced composite beam |
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| CN111794438B (en) | 2021-03-23 |
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