CN215520105U - Reinforced concrete beam structure - Google Patents
Reinforced concrete beam structure Download PDFInfo
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- CN215520105U CN215520105U CN202121729660.5U CN202121729660U CN215520105U CN 215520105 U CN215520105 U CN 215520105U CN 202121729660 U CN202121729660 U CN 202121729660U CN 215520105 U CN215520105 U CN 215520105U
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Abstract
The utility model discloses a reinforced concrete beam structure which comprises a reinforced concrete beam and reinforced concrete columns, wherein the reinforced concrete columns are arranged below two sides of the reinforced concrete beam, wedge-shaped steel plate enclosing sleeves are sleeved on the reinforced concrete columns, a steel beam is connected between the wedge-shaped steel plate enclosing sleeves on the two reinforced concrete columns, a wedge-shaped steel base plate is arranged between the steel beam and the reinforced concrete beam, and stiffening rib plates are arranged on the steel beam. The utility model only needs to process the surface of the partial column provided with the wedge-shaped steel plate surrounding sleeve; in the construction process on site, extra prestress tensioning and anchoring measures are not needed; the wet operation is less, the construction period is short, and the labor number and the labor cost can be reduced; the adopted steel beams, steel plates and wedge-shaped steel base plates can be prefabricated in a factory and then installed on site, the production efficiency is high, and meanwhile, the noise and the environmental pollution of a construction site are reduced; has good disassembly and reassembly characteristics.
Description
Technical Field
The utility model relates to a reinforced beam structure, in particular to a reinforced concrete beam structure.
Background
The reinforced concrete structure is the main structural form of the building in China, the beam is an important horizontal stress component in the structure, the building is damaged to different degrees due to natural disasters and earthquakes all the time, and the phenomenon that the house is damaged due to wind disasters and flood disasters sometimes happens; buildings can have aging problems after long-term use; when some components are dismantled during house decoration, the stress system of the original structure is changed, and safety accidents can happen if no measures are taken. All of the above require repair reinforcement of the structural members.
The common reinforcing methods for reinforced concrete beams include a section enlarging method, an external prestressing method, an external bonding steel method, a fiber composite material bonding method and a steel plate bonding method. The methods are widely applied in engineering, form a mature theoretical system and a calculation method, and have certain limitations. The improvement of labor cost greatly increases the production cost, especially for some reinforcement methods with long construction period; the structural adhesive material is used for polishing the surface of a component in a large area, a large amount of dust is generated, air is polluted, the construction personnel are harmful, and the production cost is increased by taking an additional compensation measure.
SUMMERY OF THE UTILITY MODEL
Utility model purpose: the utility model aims to provide a reinforced concrete beam structure, which solves the problems of large-area polishing of the surface, dust generation, air pollution and high cost of the conventional reinforcement.
The technical scheme is as follows: the reinforced concrete beam structure comprises a reinforced concrete beam and reinforced concrete columns, wherein the reinforced concrete columns are arranged below two sides of the reinforced concrete beam, wedge-shaped steel plate enclosing sleeves are sleeved on the reinforced concrete columns, a steel beam is connected between the wedge-shaped steel plate enclosing sleeves on the two reinforced concrete columns, a wedge-shaped steel base plate is arranged between the steel beam and the reinforced concrete beam, and stiffening rib plates are arranged on the steel beam.
In order to fix the steel beam, the steel beam and the wedge-shaped steel plate surrounding sleeve are welded.
When the wedge-shaped steel plate surrounding sleeve slides downwards after being stressed, under the action of lateral constraint force and friction force, the self-locking can be realized to be balanced, the connection between the steel plate surrounding sleeve and the reinforced concrete column is not required to be strengthened through extra measures, the thickness of the steel plate of the wedge-shaped steel plate surrounding sleeve is 10-25 mm, and the steel plate is connected through welding seams to form a closed wedge-shaped steel plate surrounding sleeve.
The steel beam is composed of a single H-shaped steel beam or two channel-shaped steels.
When the wedge-shaped steel base plate is installed, prestress is generated in the steel beam through extrusion of the inward plugs of the wedge-shaped steel base plate, and the gap between the steel beam and the reinforced concrete beam is 20-100 mm.
Preferably, the width of the wedge-shaped steel base plate is 100-300 mm.
Has the advantages that: the end part of the steel beam is fixedly connected on the wedge-shaped steel plate surrounding sleeve through a welding seam, the top circumference of the wedge-shaped steel plate surrounding sleeve is smaller, the bottom circumference of the wedge-shaped steel plate surrounding sleeve is larger, the wedge-shaped steel plate surrounding sleeve is restrained and wrapped on reinforced concrete, a gap between the wedge-shaped steel plate surrounding sleeve and the reinforced concrete column is filled with pouring type structural adhesive, and under the action of vertical load, the wedge-shaped steel plate surrounding sleeve and the reinforced concrete column have the adhesion force of the structural adhesive and the friction force and the restraining force generated by gliding, so that self-locking balance is realized. Therefore, the steel beam and the wedge-shaped steel plate enclosure are installed without measures such as bar planting, large-area concrete beam bottom grinding and the like, and only the surface of a local column provided with the wedge-shaped steel plate enclosure is required to be treated; in the construction process on site, the prestress in the steel beam is applied by an inward extrusion measure of the wedge-shaped steel base plate, and no additional prestress tensioning and anchoring measure is needed; the wet operation is less, the construction period is short, and the labor number and the labor cost can be reduced; the adopted steel beams, steel plates and wedge-shaped steel base plates can be prefabricated in a factory and then installed on site, the production efficiency is high, and meanwhile, the noise and the environmental pollution of a construction site are reduced; has good disassembly and reassembly characteristics.
Drawings
FIG. 1 is an elevational view of the present invention;
FIG. 2 is a cross-sectional view A-A of FIG. 1;
FIG. 3 is a cross-sectional view B-B of FIG. 1;
FIG. 4 is a schematic view of the connection between the steel beam and the wedge-shaped steel plate enclosure;
FIG. 5 is a schematic illustration of a wedge treatment of the surface of a reinforced concrete column where a wedge-shaped steel plate enclosure is installed;
FIG. 6 is an isometric view of a wedge-shaped steel plate enclosure.
Detailed Description
The utility model is further described below with reference to the accompanying drawings.
As shown in fig. 1-6, the reinforced concrete beam structure disclosed by the utility model comprises a reinforced concrete beam 1 and a reinforced concrete column 2, wherein the reinforced concrete column 2 is arranged below two sides of the reinforced concrete beam 1 and is cast into a whole, a wedge-shaped steel plate enclosure 3 is wrapped on the reinforced concrete column 2 and is a closed cylinder, can be round or rectangular, the caliber of the top part is small, the caliber of the bottom part is large, when the steel plate surrounding sleeve is stressed and then slides downwards, under the effect of side direction restraint power and frictional force, can the auto-lock realize balancing, need not strengthen the steel sheet again through extra measure and enclose the cover and be connected between the reinforced concrete post, the wedge steel sheet on two reinforced concrete posts encloses and is connected with girder steel 4 between the cover, and girder steel 4 is parallel with reinforced concrete roof beam 1, the stiffening rib plate 7 on wedge steel backing plate 6 and the girder steel 4 between girder steel 4 and the reinforced concrete roof beam 1. The steel sheet thickness that the wedge steel sheet enclosed the cover is 10 ~ 25mm, the steel sheet passes through the welding seam connection and forms confined wedge steel sheet and encloses the cover, the girder steel adopts single H shaped steel or two channel steel to constitute, adopt two channel steel to be when the roof beam span is great, single H shaped steel roof beam is great, the installation is more difficult with the transportation, through the welding seam connection between girder steel and the wedge steel sheet enclosing the cover, the clearance between girder steel and the reinforced concrete roof beam is 20 ~ 100mm, leave the clearance between girder steel and the reinforced concrete roof beam, the benefit lies in can setting up the wedge steel backing plate, through the extrusion of plugging inwards of wedge steel backing plate, produce prestressing force in the girder steel. Therefore, prestress generated in the steel beam is simple, special tensioning equipment is not needed, the width of the wedge-shaped steel base plate is 100-300 mm, the maximum thickness and the minimum thickness are determined according to the gap between the steel beam and the reinforced concrete beam, and the wedge-shaped steel base plate can generate prestress in the steel beam in the extrusion process. In addition, in order to fix the wedge-shaped steel base plate, after the wedge-shaped steel base plate reaches an ideal position, the wedge-shaped steel base plate is fixed on the steel beam by adopting spot welding, before the wedge-shaped steel base plate is installed, a stiffening rib plate is additionally arranged at a corresponding position on the steel beam, and the cross section of the stiffening rib plate can meet the calculation of bearing capacity and stability.
During construction, the utility model comprises the following steps:
(1) determining the reverse concentrated force at the midpoint position of the reinforced concrete beam to be reinforced, and calculating according to the section size of the reinforced beam, the reinforcing bars and the load to be borne;
(2) determining the section size of the steel beam, the size of the wedge-shaped steel backing plate, the size of prestress to be applied, the relation between the deflection deformation of the steel beam and the support counterforce of the steel beam, and the geometric dimension of the wedge-shaped steel plate enclosure according to the magnitude of the concentrated force, wherein the end part of the steel beam is considered in a hinged mode;
(3) pre-processing a steel plate of a steel beam, which comprises a stiffening rib plate, a wedge-shaped steel base plate and a wedge-shaped steel plate surrounding sleeve, in a factory;
(4) in a construction site, performing wedge-shaped treatment on the local surfaces of the reinforced concrete columns at the two ends of the reinforced concrete beam, and manually removing a certain concrete protective layer;
(5) welding and installing a wedge-shaped steel plate surrounding sleeve on a construction site, and adding auxiliary measures to fix the steel plate in the installation process;
(6) after the wedge-shaped steel plate surrounding sleeves are assembled, the end parts of the steel beams are fixed on the steel plate surrounding sleeves through welding seams, and then filling pouring type structural adhesive into gaps between the wedge-shaped steel plate surrounding sleeves and the reinforced concrete columns;
(7) after the structural adhesive is completely cured, inserting the wedge-shaped steel base plate into a gap between the steel beam and the reinforced concrete beam, and extruding to enable the steel beam to generate preset deflection deformation, namely generating prestress;
(8) carry out spot welding between wedge-shaped steel backing plate and girder steel, prevent that wedge-shaped steel backing plate from producing in the use not hard up.
Claims (7)
1. The utility model provides a consolidate reinforced concrete beam structure, a serial communication port, including reinforced concrete roof beam (1) and reinforced concrete column (2), reinforced concrete column (2) set up in reinforced concrete roof beam (1) both sides below, the cover has wedge steel sheet to enclose cover (3) on the reinforced concrete column, and the wedge steel sheet on two reinforced concrete columns (2) encloses and is connected with girder steel (4) between cover (3), be provided with wedge steel backing plate (6) between girder steel (4) and reinforced concrete roof beam (1), be provided with stiffening rib board (7) on girder steel (4).
2. A reinforced concrete beam structure according to claim 1, wherein the steel beam (4) and wedge-shaped steel plate enclosure (3) are welded.
3. A reinforced concrete beam structure according to claim 1, wherein the wedge-shaped steel plate enclosure (3) has a steel plate thickness of 10-25 mm, and the steel plates are joined by welds to form a closed wedge-shaped steel plate enclosure.
4. A reinforced concrete beam structure according to claim 1, wherein the steel beam (4) is formed of a single H-shaped steel beam or two channel steels.
5. A reinforced concrete beam structure according to claim 1, wherein the gap between the steel beam (4) and the reinforced concrete beam (1) is 20-100 mm.
6. A reinforced concrete beam structure according to claim 1, wherein the wedge-shaped steel shim plate (6) has a width of 100 to 300 mm.
7. A reinforced concrete beam structure according to claim 1, wherein structural glue is filled between the wedge-shaped steel plate enclosure (3) and the reinforced concrete column (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121729660.5U CN215520105U (en) | 2021-07-28 | 2021-07-28 | Reinforced concrete beam structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121729660.5U CN215520105U (en) | 2021-07-28 | 2021-07-28 | Reinforced concrete beam structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215520105U true CN215520105U (en) | 2022-01-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121729660.5U Active CN215520105U (en) | 2021-07-28 | 2021-07-28 | Reinforced concrete beam structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215520105U (en) |
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2021
- 2021-07-28 CN CN202121729660.5U patent/CN215520105U/en active Active
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