CN203742193U - Reinforced concrete beam reinforcing device with prestressed steel wire rope - Google Patents
Reinforced concrete beam reinforcing device with prestressed steel wire rope Download PDFInfo
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- CN203742193U CN203742193U CN201420083341.5U CN201420083341U CN203742193U CN 203742193 U CN203742193 U CN 203742193U CN 201420083341 U CN201420083341 U CN 201420083341U CN 203742193 U CN203742193 U CN 203742193U
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- concrete beam
- angle steel
- wire rope
- reinforced concrete
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Abstract
The utility model discloses a reinforced concrete beam reinforcing device with a prestressed steel wire rope. The reinforcing device is fixedly installed on a reinforced concrete beam and mainly comprises two steel angles, the steel wire rope and multiple adjustable bolts, wherein one edges of the two steel angles are fixedly installed on a left side beam and a right side beam of the reinforced concrete beam respectively, the other edges of the two steel angles are respectively provided with a row of bolt holes in the length direction of the steel angles, circular rings are arranged on the adjustable bolts, the adjustable bolts are locked into the bolt holes in the two steel angles respectively in a one-to-one corresponding and adjustable mode, the steel wire rope is wound between the circular rings of the adjustable bolts of the two steel angles in a skipping and zigzag mode so that multiple groups of right-angled-U-shaped reinforcing ribs which are sequentially arranged in sequence and in parallel and bypass the bottom of the concrete beam in a tensioned mode can be formed, and the two free ends of the steel wire rope and the right-angled-U-shaped reinforcing ribs adjacent to the two free ends are anchored in a tensioning mode through aluminum fasteners respectively. Compared with the prior art, the reinforced concrete beam reinforcing device with the prestressed steel wire rope has the advantages that construction is convenient and fast, the reinforcing effect is good, the shear resistance is excellent, and the applicability is high.
Description
Technical field
The utility model relates to reinforced concrete beam reinforcing technique field, is specifically related to a kind of reinforced concrete beam bracing means, adopts prestress rope to reinforce to promote reinforced concrete beam shear behavior.
Background technology
Existing Shearing Reinforcement of Steel Concrete Beam technology mainly contains increasing section reinforcing method, outer sticky reinforcement method of steel shapes, stickup fibrous composite reinforcing method, affixing steel plate reinforcement method, setting support reinforcing method and steel wire mesh sheet-polymer mortar reinforcing method etc.There is following problem in existing reinforcement means: between (1) reinforcement material and original member, have stress hysteresis effect, co-operation ability is poor, greatly affects consolidation effect; (2) reinforcement material end anchorage length is inadequate, and the stripping damage of anchored end easily occurs; (3) increase the sectional dimension of original member, impact sight and using.The problems referred to above that exist for current Shearing Reinforcement of Steel Concrete Beam method, the inventor furthers investigate a kind of new easy construction of rear proposition, consolidation effect excellence, the superior reinforced concrete beam prestress rope bracing means of shear behavior.
Utility model content
The purpose of this utility model is to provide a kind of reinforced concrete beam prestress rope bracing means, has compared to existing technology the advantages such as construction is convenient, consolidation effect is excellent, shear behavior is superior and applicability is strong.
In order to reach above-mentioned purpose, solution of the present utility model is:
A kind of reinforced concrete beam prestress rope bracing means, is fixedly mounted on concrete beam, mainly comprises two angle steel, a wire rope and some adjustable bolts; Described two angle steel are packed in the left and right beam side of described concrete beam by its one side level respectively, respectively offer along its length row's bolt hole on the another side of these two angle steel; On described some adjustable bolts, be equipped with annulus, these some adjustable bolts respectively correspondingly adjustable lock be located in the bolt hole of described two angle steel, described wire rope is wound around by the cranky mode of lattice more some groups of " Qian " type rinforcement bars that are arranged in parallel successively that form at the bottom of having tensioning to walk around described concrete beam beam between the annulus of described adjustable bolt separately at described two angle steel, and two free ends of described wire rope adopt respectively " Qian " type rinforcement bar described in aluminium fastener and adjoining to carry out tensioning anchoring.
Described aluminium fastener respectively tensioning is anchored at position at the bottom of the beam of described concrete beam.
On each described adjustable bolt, all spiral shell is provided with a nut of being convenient to regulate this adjustable bolt, and this nut and described annulus lay respectively at two side positions of the another side of described angle steel.
Described two angle steel row's bolt hole separately is all equidistant arrangement, and this two rows bolt hole is left and right just corresponding setting one by one.
On one side of described two angle steel, respectively offer installing hole, on two curb girders of corresponding concrete beam, respectively offer suitable boring, described two angle steel are realized Matching installation by chemical anchor bolts to installing hole and borehole anchorage.
Adopt after such scheme, a kind of reinforced concrete beam bracing means of the utility model, is with respect to the beneficial effect of prior art:
One, in reinforcing, only adopt single wire rope to get over lattice and be wound around, and by adjustable bolt, wire rope is applied to prestressed stretch-draw, without adopting special stretch-draw equipment, construct convenient, greatly improved efficiency of construction; And adopted prestressing technique, and can effectively avoid stress hysteresis effect, anchoring is reliable, improves consolidation effect;
Two, in reinforcing, only need the both ends of single wire rope to implement anchorings by two groups of aluminium fasteners, avoided in existing construction method, many wire rope being implemented the loaded down with trivial details step of anchorings, greatly improved efficiency of construction;
Three, anchoring preferably can be implemented in position in the two ends of wire rope at the bottom of beam, has overcome the existing drawback that can only may be cut inefficacy in the time that beam side anchor is solid;
Four, in processing the position of two angle steel be preferably arranged in beam side by tip position, wire rope is pressed close to beam body, adjustable bolt moderate length, and consolidation effect is obvious, applicable to the Shear Strengthening with floor bar concrete beam, the while is applicable to the reinforcing of the less reinforced concrete beam of deck-molding.
Brief description of the drawings
Fig. 1 is stereogram of the present utility model;
Fig. 2 is the front view of Fig. 1;
Fig. 3 is the rear elevation of Fig. 1;
Fig. 4 be in Fig. 2 A-A to cut-away view.
Label declaration
Angle steel 1 installing hole 11
Bolt hole 12 adjustable bolts 2
Annulus 21 wire rope 3
Aluminium fastener 4 chemical anchor bolts 5
Nut 6 concrete beam L
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, this case is described in further detail.
The utility model relates to a kind of reinforced concrete beam prestress rope bracing means, is fixedly mounted on concrete beam L upper, and as Figure 1-4, bracing means mainly comprises two angle steel 1, wire rope 3 and some adjustable bolts 2.
Described two angle steel 1 respectively by its on one side level be packed in the left and right beam side of concrete beam L, be preferably packed in beam side by apical position (referring to Fig. 1).The mode that is fixedly mounted with of angle steel 1 has various ways, specifically provide an embodiment, article two, on one side of angle steel 1, respectively offer several installing holes 11, on two curb girders of corresponding concrete beam L, offer several suitable boring (not shown)s, article two, angle steel 1 mates anchoring by chemical anchor bolts 5 to installing hole 11 and boring, realizes the location and installation on concrete beam L.
Article two, on the another side of angle steel 1, respectively offer along its length row's bolt hole 12, it is adjustable up and down that the interior spiral shell of every bolt hole 12 is provided with a relative bolt hole 12 of adjustable bolt 2(with annulus 21), the annulus 21 of each adjustable bolt 2 arranges down for wire rope 3 and runs through.On adjustable bolt 2, spiral shell is provided with a nut 6 that is positioned at angle steel 1 top, this nut 6 and annulus 21 lay respectively at two side positions of the another side of angle steel 1, in reinforcing process, by the nut 6 on adjustable bolt 2, the tightness of wire rope 3 is regulated, be convenient to the adjustable effect of adjustable bolt 2, work the tensioning location of strengthening adjustable bolt 2 simultaneously.Provide in embodiment, on adjustable bolt 2, be positioned at angle steel 1 lower position and be provided with equally nut 6.Have again, preferably, described two angle steel 1 in beam side, be left and right be oppositely arranged, on two angle steel 1 separately one row bolt hole be all equidistant arrangement, like this two row bolts hole is left and right just corresponding setting one by one.
Wire rope 3 two angle steel 1 separately 21 of the annulus of adjustable bolt 2 be wound around by the cranky mode of lattice more.Specifically as shown in Figure 1, the annulus 21 of the adjustable bolt 2 on one angle steel 1 is used A1, B1, C1 successively ... order indicates, the annulus 21 of the adjustable bolt 2 on another angle steel 1 is used A4, B4, C4 successively ... order indicates, and two Liang Jiao at the bottom of the beam of concrete beam L are to application A2, B2, C2 ... with A3, B3, C3 ... order indicates.Wire rope 3 more lattice are cranky be wound up as (A1-A2-A3-A4)-(B4-B3-B2-B1)-(C1-C2-C3-C4)-(...), so form some groups of " Qian " type rinforcement bars that are arranged in parallel successively that have at the bottom of concrete beam L beam is walked around in tensioning.
Two free ends of described wire rope 3 adopt respectively one group of aluminium fastener 4 to carry out tensioning anchoring, and aluminium fastener 4 fastens side by side and realizes tensioning anchoring wire rope 3 free ends and adjoining one above-mentioned " Qian " type rinforcement bar particularly.Preferably, two groups of aluminium fasteners 4 respectively tensioning are anchored at position at the bottom of the beam of concrete beam L, can overcome the existing drawback that can only may be cut inefficacy in the time that beam side anchor is solid.
Reinforcement means corresponding to above-mentioned reinforced concrete beam prestress rope bracing means, mainly comprises following step:
1) angle steel is processed and is installed: prepare two angle steel 1, respectively offer along its length row's bolt hole 12 on one side of these two angle steel 1, these two angle steel 1 are packed in by its another side level in the left and right beam side of concrete beam L;
2) adjustable bolt is installed: the adjustable bolt 2 of preparing some band annulus 21, by these some adjustable bolts 2 respectively one by one on the corresponding two row's bolts hole 12 that are arranged in two angle steel 1, one end with annulus 21 of each adjustable bolt 2 arranges down, and the relative bolt hole 12 of this each adjustable bolt 2 is adjustable up and down; Annulus 21 and the angle steel 1 of each adjustable bolt 2 should not too be pressed close to, to ensure that adjustable bolt 2 has enough stretch-draw travel distances;
3) wire cable strengthening is wound around: prepare a wire rope 3 and two groups of aluminium fasteners 4, first one end of wire rope 1 is passed after the annulus 21 of angle steel 1 one end adjustable bolts 2, adopt one group of aluminium fastener 4 anchoring, afterwards wire rope 3 is wound to angle steel 1 the other end at 21 of the annulus of the adjustable bolt separately 2 of two angle steel 1 by getting over the cranky mode of lattice, form some groups of " Qian " type rinforcement bars (referring to Fig. 4) that are arranged in parallel successively that have at the bottom of concrete beam L beam is walked around in preliminary tensioning, the other end of wire rope 3 is by another group aluminium fastener 4 anchorings;
4) wire rope prestressed stretch-draw: the adjustable each adjustable bolt 2 up turning on two angle steel 1, so that wire rope 3 is implemented to prestressed stretch-draw, completes concrete beam L prestress rope and reinforce enforcement.
Preferably, described 1) in step, article two, angle steel 1 row's bolt hole separately is all equidistant arrangement, and this two rows bolt hole is left and right just corresponding setting one by one, and its vertical portion, left and right of " Qian " type rinforcement bar that some groups of being wound around formation with this are arranged in parallel successively is just and is oppositely arranged.
After above-mentioned stretch-draw completes, carry out the setting of polymer mortar surface layer by relevant regulations, in construction, need to adopt the good two-component polymer mortar of adhesive property to wipe one's face, after having constructed, should carry out surface layer maintenance in strict accordance with operation instruction.
Preferably, described 1) before step, concrete beam L is implemented to top layer and process: the position reinforcing at need is implemented rendering layer and peeled off and carry out snap the line location, implements chamfered (being fillet after processing) afterwards in the relevant position at curb girder angle, the left and right of lower end.Preferably, after chamfering and boring complete, employing air compressor blows down the dust of duct and chamfering Liang Bi, has cleared up rear employing acetone and has cleaned duct inwall and chamfering position.
The foregoing is only preferred embodiment of the present utility model, all equalizations of doing with the utility model claim scope change and modify, and all should belong to the scope of the utility model claim.
Claims (5)
1. a reinforced concrete beam prestress rope bracing means, is fixedly mounted on concrete beam, it is characterized in that: mainly comprise two angle steel, a wire rope and some adjustable bolts; Described two angle steel are packed in the left and right beam side of described concrete beam by its one side level respectively, respectively offer along its length row's bolt hole on the another side of these two angle steel; On described some adjustable bolts, be equipped with annulus, these some adjustable bolts respectively correspondingly adjustable lock be located in the bolt hole of described two angle steel, described wire rope is wound around by the cranky mode of lattice more some groups of " Qian " type rinforcement bars that are arranged in parallel successively that form at the bottom of having tensioning to walk around described concrete beam beam between the annulus of described adjustable bolt separately at described two angle steel, and two free ends of described wire rope adopt respectively " Qian " type rinforcement bar described in aluminium fastener and adjoining to carry out tensioning anchoring.
2. a kind of reinforced concrete beam prestress rope bracing means as claimed in claim 1, is characterized in that: described aluminium fastener respectively tensioning is anchored at position at the bottom of the beam of described concrete beam.
3. a kind of reinforced concrete beam prestress rope bracing means as claimed in claim 1, it is characterized in that: on each described adjustable bolt, all spiral shell is provided with a nut of being convenient to regulate this adjustable bolt, and this nut and described annulus lay respectively at two side positions of the another side of described angle steel.
4. a kind of reinforced concrete beam prestress rope bracing means as claimed in claim 1, is characterized in that: described two angle steel row's bolt hole separately is all equidistant arrangement, and this two rows bolt hole is left and right just corresponding setting one by one.
5. a kind of reinforced concrete beam prestress rope bracing means as claimed in claim 1, it is characterized in that: on one side of described two angle steel, respectively offer installing hole, on two curb girders of corresponding concrete beam, respectively offer suitable boring, described two angle steel are realized Matching installation by chemical anchor bolts to installing hole and borehole anchorage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420083341.5U CN203742193U (en) | 2014-02-26 | 2014-02-26 | Reinforced concrete beam reinforcing device with prestressed steel wire rope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420083341.5U CN203742193U (en) | 2014-02-26 | 2014-02-26 | Reinforced concrete beam reinforcing device with prestressed steel wire rope |
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| Publication Number | Publication Date |
|---|---|
| CN203742193U true CN203742193U (en) | 2014-07-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420083341.5U Withdrawn - After Issue CN203742193U (en) | 2014-02-26 | 2014-02-26 | Reinforced concrete beam reinforcing device with prestressed steel wire rope |
Country Status (1)
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103953202A (en) * | 2014-02-26 | 2014-07-30 | 华侨大学 | Reinforcing device and reinforcing method of prestressed steel wire rope of reinforced concrete girder |
| CN106121268A (en) * | 2016-08-22 | 2016-11-16 | 东南大学 | The system and method for prestress rope integrative consolidation slab column |
| WO2017211107A1 (en) * | 2016-06-07 | 2017-12-14 | 东南大学 | Pre-stressed steel wire rope-based flexure- and shear-strengthening concrete t beam, and strengthening method thereof |
| CN110388090A (en) * | 2019-07-16 | 2019-10-29 | 西安建筑科技大学 | A kind of girder pre-stressed shear-resistant reinforcing device of RC based on marmem |
| CN110700612A (en) * | 2019-09-29 | 2020-01-17 | 西安工程大学 | RC roof beam reinforcing apparatus based on shape memory alloy and carbon fiber cloth |
-
2014
- 2014-02-26 CN CN201420083341.5U patent/CN203742193U/en not_active Withdrawn - After Issue
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103953202A (en) * | 2014-02-26 | 2014-07-30 | 华侨大学 | Reinforcing device and reinforcing method of prestressed steel wire rope of reinforced concrete girder |
| CN103953202B (en) * | 2014-02-26 | 2016-01-06 | 华侨大学 | A kind of reinforced concrete beam prestress rope bracing means and method thereof |
| WO2017211107A1 (en) * | 2016-06-07 | 2017-12-14 | 东南大学 | Pre-stressed steel wire rope-based flexure- and shear-strengthening concrete t beam, and strengthening method thereof |
| CN106121268A (en) * | 2016-08-22 | 2016-11-16 | 东南大学 | The system and method for prestress rope integrative consolidation slab column |
| CN106121268B (en) * | 2016-08-22 | 2018-11-09 | 东南大学 | The system and method for prestress rope integrative consolidation slab column |
| CN110388090A (en) * | 2019-07-16 | 2019-10-29 | 西安建筑科技大学 | A kind of girder pre-stressed shear-resistant reinforcing device of RC based on marmem |
| CN110700612A (en) * | 2019-09-29 | 2020-01-17 | 西安工程大学 | RC roof beam reinforcing apparatus based on shape memory alloy and carbon fiber cloth |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140730 Effective date of abandoning: 20160106 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |