CN202788024U - High-rigidity concrete beam structure - Google Patents
High-rigidity concrete beam structure Download PDFInfo
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- CN202788024U CN202788024U CN 201220500357 CN201220500357U CN202788024U CN 202788024 U CN202788024 U CN 202788024U CN 201220500357 CN201220500357 CN 201220500357 CN 201220500357 U CN201220500357 U CN 201220500357U CN 202788024 U CN202788024 U CN 202788024U
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Abstract
The utility model discloses a high-rigidity concrete beam structure which structurally comprises a reinforced concrete beam. A section of the reinforced concrete beam is in a rectangle shape. Angle steels are arranged on the four arris edges of the reinforced concrete beam. Two angle steels on the upper portion of the reinforced concrete beam are connected through a group of equal-interval connecting flat steels. The two angle steels on the upper portion of the reinforced concrete beam are connected with two angle steels on the lower portion of the reinforced concrete beam through a group of equal-interval vertical flat steels. Length of the vertical flat steels is larger than the height of the reinforced concrete beam plus the height of a framework steel beam. The bottom ends of the vertical flat steels are connected with the framework steel beam. The high-rigidity concrete beam structure is simple in structure, an existing reinforced concrete beam is clamped tightly through the angle steels arranged on the four arris edges of the existing reinforced concrete beam and the connecting angle steels and the vertical flat steels which are used for connecting the angle steels, and a steel-concrete component compound section is formed. Therefore, rigidity of a steam is effectively improved, and capacity of resistance to deformation and bearing capacity of the existing reinforced concrete beam are greatly improved.
Description
Technical field
The utility model relates to a kind of high rigidity concrete beam structure, belongs to the reinforcing technique field of concrete beam.
Background technology
In concrete steel building uses, because the change of building function, or the reason such as existing structure defective, need to reinforce the reinforced concrete beam of main load-bearing.The purpose of reinforcing mainly is in order to satisfy supporting capacity and instructions for use two aspects.Existing reinforcement means has two kinds usually; a kind of is the cross section of strengthening reinforced concrete beam; although this method can Effective Raise the rigidity of existing reinforced concrete beam; to solve the defective of the aspects such as Reinforced Concrete Beam Deformation and crack; but this method must be rejected the topping that has the reinforced concrete beam surface now in construction, on original reinforcing bar a series of processes such as repair welding stiffener, support shuttering, cast-in-situ concrete and maintenance, difficulty of construction is large and long in time limit.Another kind method is that the topping on existing reinforced concrete beam surface is rejected; wrap up one deck around will having the outside that the fault location such as crack appears in reinforced concrete beam now with steel plate; and the steel bar welding in steel plate and the existing reinforced concrete beam is connected into integrated member, repair smooth with compo at last.Although this method also can improve supporting capacity and the deformability of reinforced concrete beam.But this method also needs to reject the topping that will have reinforced concrete beam now, exposes inner reinforcing bar, so that be welded into integrated member with encased steel plate, also needs at last to repair with cement mortar.Although do not need to carry out formwork and secondary is built such as first method, construction is got up or suitable trouble; Be the intensity of utilizing steel owing to the Covered with Angles reinforcing is important in addition, because section form is limit, it is limited for the rigidity effect that improves member.Two kinds of above-mentioned methods all have certain damage to the structure of original reinforced concrete beam in addition.
Summary of the invention
The purpose of this utility model is, a kind of high rigidity concrete beam structure is provided, with under the prerequisite of not destroying existing steel concrete girder construction, adopt simple structure, job practices improves the rigidity of existing reinforced concrete beam efficiently, thereby satisfy the requirement of carrying and using two aspects, overcome simultaneously the deficiencies in the prior art.
The technical solution of the utility model is achieved in that a kind of high rigidity concrete beam structure of the present utility model is that this structure comprises reinforced concrete beam; The cross section of described reinforced concrete beam is rectangle, four seamed edges of reinforced concrete beam are provided with angle steel, connect through one group of equally spaced connection band steel between two angle steel on reinforced concrete beam top, be connected through one group of equally spaced vertical band steel between two angle steel on reinforced concrete beam top and two angle steel of reinforced concrete beam bottom, the length of vertical band steel adds the height of framework girder steel greater than the height of reinforced concrete beam, and the bottom of vertical band steel is connected with the framework girder steel.
In the aforementioned structure, the length of described angle steel and framework girder steel is identical with the length of reinforced concrete beam.
In the aforementioned structure, the thickness of described angle steel, connection band steel, vertical band steel and framework girder steel is 5-15mm.
Compared with prior art, the utility model need not to reject the topping that will have reinforced concrete beam now in work progress, can not cause adverse effect and damage to structure and the intensity of existing reinforced concrete beam.The utility model is simple in structure, on the one hand can be connected the connection band steel with connecting angle and will have the reinforced concrete beam banding now with vertical band steel by being located at angle steel on existing four seamed edges of reinforced concrete beam, has formed steel-concrete Component composition cross section.This cross section is than the cross section of existing reinforced concrete beam, highly obtained effective increase, bring into play simultaneously the high powerful feature of framework girder steel material, thereby effectively raised the rigidity of reinforced concrete beam, greatly improved non-deformability and the supporting capacity of existing reinforced concrete beam.Prevent that the fracture of place, crack or distortion from appearring in existing reinforced concrete beam.The framework girder steel that is welded on the other hand vertical band steel bottom can be connected easily with such as the load such as overhead trolley that need to increase.Can well satisfy the requirement that existing reinforced concrete beam is reinforced in all kinds of structure of modification.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Being labeled as in the accompanying drawing: 1-reinforced concrete beam, 2-angle steel, 3-connect band steel, the vertical band steel of 4-, 5-framework girder steel, 6-weld seam.
The specific embodiment
The utility model is described in further detail below in conjunction with drawings and Examples, but not as to any restriction of the present utility model.
Embodiment of the present utility model: the utility model is to consist of according to following a kind of method that improves reinforced concrete beam rigidity, the method adopts angle steel and band steel to be welded into frame construction concrete beam is wrapped in wherein, and the bottom welding of framework is useful on the framework girder steel of fixed load; Concrete operation step is as follows:
1., first the local ledges of four seamed edges of reinforced concrete beam are polished flat, the seamed edge rounding, radius of corner is greater than the angle steel fillet radius; Then be coated in two angle steel inboards with cement mortar, two angle steel are buckled in two seamed edges on reinforced concrete beam top, make with anchor clamps two angle steel inner surfaces are close on two seamed edges on reinforced concrete beam top, then by the connection band steel of one group of spaced set that two angle steel are spot-welded together; Angle steel is arranged along four seamed edge total lengths of reinforced concrete beam;
2., be coated in other two angle steel inboards with cement mortar, two angle steel are buckled in two seamed edges of reinforced concrete beam bottom, with anchor clamps two angle steel inner surfaces are close on two seamed edges of reinforced concrete beam bottom, then use four vertical band steels that two band steel two-end-points on two band steel two ends of reinforced concrete beam two side lower parts and reinforced concrete beam top are welded together; Angle steel is arranged along four seamed edge total lengths of reinforced concrete beam;
3., one group of vertical band steel of equally spaced repair welding between two vertical band steels of reinforced concrete beam both sides; Vertical band steel length adds the height of framework girder steel greater than the height of reinforced concrete beam; Vertical band steel spacing and the step connection band steel spacing in 1. is identical, the top of vertical band steel be connected band steel end and angle steel and weld;
4., remove anchor clamps, the bottom spot welding framework girder steel between the vertical band steel of two rows of reinforced concrete beam both sides; The framework girder steel is the channel-section steel product, or the door font shaped steel that is bent into steel plate, and the opening upwards of channel-section steel or door font shaped steel welds with vertical band steel; The length of framework girder steel equals the length of reinforced concrete beam, and the width that the width of framework girder steel equals reinforced concrete beam adds the thickness of 2 times of angle steel.
5., the framework girder steel of spot welding is carried out level correction, then adopt full welds that weld seam is filled up all spot welding place, the process of filling up adopts from top to bottom, and order from inside to outside is symmetrically welded by the diagonal angle, reduces welding deformation as far as possible.
The of the present utility model a kind of high rigidity concrete beam structure that consists of according to said method as shown in Figure 1, this structure comprises reinforced concrete beam 1; The cross section of described reinforced concrete beam 1 is rectangle, four seamed edges of reinforced concrete beam 1 are provided with angle steel 2, connect through one group of equally spaced connection band steel 3 between two angle steel 2 on reinforced concrete beam 1 top, be connected through one group of equally spaced vertical band steel 4 between two angle steel 2 on reinforced concrete beam 1 top and two angle steel 2 of reinforced concrete beam 1 bottom, the length of vertical band steel 4 adds the height of framework girder steel 5 greater than the height of reinforced concrete beam 1, and the bottom of vertical band steel 4 is connected with framework girder steel 5.The length of described angle steel 2 and framework girder steel 5 is identical with the length of reinforced concrete beam 1.The thickness of described angle steel 2, connection band steel 3, vertical band steel 4 and framework girder steel 5 is 5-15mm.
Claims (3)
1. one kind high rigidity concrete beam structure comprises reinforced concrete beam (1); It is characterized in that: the cross section of described reinforced concrete beam (1) is rectangle, four seamed edges of reinforced concrete beam (1) are provided with angle steel (2), connect through one group of equally spaced connection band steel (3) between two angle steel (2) on reinforced concrete beam (1) top, be connected through one group of equally spaced vertical band steel (4) between two angle steel (2) of two angle steel (2) on reinforced concrete beam (1) top and reinforced concrete beam (1) bottom, the length of vertical band steel (4) adds the height of framework girder steel (5) greater than the height of reinforced concrete beam (1), and the bottom of vertical band steel (4) is connected with framework girder steel (5).
2. described high rigidity concrete beam structure according to claim 1, it is characterized in that: the length of described angle steel (2) and framework girder steel (5) is identical with the length of reinforced concrete beam (1).
3. described high rigidity concrete beam structure according to claim 1 is characterized in that: described angle steel (2), the thickness that connects band steel (3), vertical band steel (4) and framework girder steel (5) are 5-15mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220500357 CN202788024U (en) | 2012-09-27 | 2012-09-27 | High-rigidity concrete beam structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220500357 CN202788024U (en) | 2012-09-27 | 2012-09-27 | High-rigidity concrete beam structure |
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| Publication Number | Publication Date |
|---|---|
| CN202788024U true CN202788024U (en) | 2013-03-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220500357 Expired - Fee Related CN202788024U (en) | 2012-09-27 | 2012-09-27 | High-rigidity concrete beam structure |
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| CN (1) | CN202788024U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103711328A (en) * | 2013-12-25 | 2014-04-09 | 华侨大学 | Reinforcing device of concrete beam and construction method thereof |
| CN107575037A (en) * | 2017-09-14 | 2018-01-12 | 上海电力设计院有限公司 | The optimal steel using amount design method of steel-encasing strengthening beams of concrete |
-
2012
- 2012-09-27 CN CN 201220500357 patent/CN202788024U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103711328A (en) * | 2013-12-25 | 2014-04-09 | 华侨大学 | Reinforcing device of concrete beam and construction method thereof |
| CN103711328B (en) * | 2013-12-25 | 2016-08-17 | 华侨大学 | The bracing means of a kind of beams of concrete and construction method thereof |
| CN107575037A (en) * | 2017-09-14 | 2018-01-12 | 上海电力设计院有限公司 | The optimal steel using amount design method of steel-encasing strengthening beams of concrete |
| CN107575037B (en) * | 2017-09-14 | 2019-07-16 | 上海电力设计院有限公司 | The optimal steel using amount design method of steel-encasing strengthening beams of concrete |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130313 Termination date: 20150927 |
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| EXPY | Termination of patent right or utility model |