CN202850355U - Variable-beam steel strand cable - Google Patents
Variable-beam steel strand cable Download PDFInfo
- Publication number
- CN202850355U CN202850355U CN201220457294.7U CN201220457294U CN202850355U CN 202850355 U CN202850355 U CN 202850355U CN 201220457294 U CN201220457294 U CN 201220457294U CN 202850355 U CN202850355 U CN 202850355U
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- Prior art keywords
- steel strand
- bundle steel
- strand cable
- bundle
- cable
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Abstract
The utility model provides a variable-beam steel strand cable, which is divided into two parts, wherein one part is m beams of steel strand cables, and the other part is n beams of steel strand cables; m and n are natural numbers and m is greater than n; the m beams of steel strand cables become n beams of steel strand cables after passing through a converter; the converter comprises m anchoring base plates; the n beams of steel strands in the m beams of steel strand cables pass through n through holes on the m anchoring base plates on the converter to form n beams of steel strand cables; and the residual (m-n) beams of steel strands in the m beams of steel strand cables pass through the residual (m-n) through holes on the m anchoring base plates and are anchored on the m anchoring base plates through an anchor device. The conversion part of the variable-beam steel strand cable for converting the m beams of steel strands into n beams of steel strands is simple in structure, easy to install and high in security.
Description
Technical field
The utility model relates to building field, specifically, relates to a kind of change bundle steel strand cable for prestressed reinforced concrete construction.
Background technology
Resistance to tension when improving the concrete structure bearing load, prevent or postpone the rigidity that concrete structure crack occurs and increases concrete structure that people have invented prestressed reinforced concrete construction.Prestressed reinforced concrete construction refers to a kind of like this concrete structure, this concrete structure is subject to the effect of compressive stress in advance before load action, when this concrete structure is subject to load, the tensile stress that the described compressive stress that produces in advance can all or part of counteracting be caused by load.
Usually, the method with stretch-draw high strength cast iron or steel wire (for example, single bundle or multi beam steel strand) produces prestressing force in concrete structure.The method of described tension reinforcing steel bar (or steel wire) comprises pre-tensioning system and post stretching.Particularly, for pre-tensioning system, pretensioned steel, rear placing of concrete when concrete reaches prescribed strength, loosens the reinforcing bar two ends.So, can the tensile stress in the prestressed reinforcement be passed to concrete by adhesion stress and make it produce compressive pre-stress.For post stretching, then be first placing of concrete, when concrete reaches prescribed strength, again the reinforcing bar in the reserving hole channel in the concrete is implemented stretch-draw, and with the two ends of its anchor in concrete structure.So compressive pre-stress can be passed to concrete component by the two ends ground tackle.
Prestressed reinforced concrete construction is strong because of anti-crack ability, anti-permeability performance good, rigidity is large, intensity is high, shear resistance and anti-fatigue performance is good is widely used in large span shearing branching beam, the continuous beam.Fig. 1 is schematic top plan view, shows a kind of prestressed girder structure.As shown in Figure 1, two prestressed girders that thickness is different (being beam 1 and beam 2) are combined into one with post 3.Because prestressed girder 1 is different with prestressed girder 2 thicknesses, the thickness of the prestress wire cable among them is just different, therefore, when integrated formation prestressed girder 1 and prestressed girder 2, just need a kind of change bundle steel strand cable 100, it is thicker that this becomes the part of bundle steel strand cable 100 in relatively thick prestressed girder 1, and the part in relatively thin prestressed girder 2 is thinner.Fig. 2 is schematic top plan view, shows a kind of existing change bundle steel strand cable.As shown in Figure 2, existing change bundle steel strand cable 100 is divided into two parts, and a part is m bundle steel strand cable 10, and another part is n bundle steel strand cable 20, m, n are natural number and m〉n, m bundle steel strand cable 10 and n bundle steel strand cable 20 couple together by connector 30.Fig. 3 is front elevational schematic, shows the connector 30 among Fig. 2, and Fig. 3 is the elevation that the left side from Fig. 2 is seen when seeing connector 30.As shown in Figure 3, connector 30 is the cylindricality metal derby, forms in the central m through hole 31, forms n groove 32 at its periphery.Referring to Fig. 2, after m bundle steel strand in the m bundle steel strand cable 10 pass through hole 31 on the connector 30, be fixed on the connector 30 by intermediate plate 33, and after the n bundle steel strand cable in the n bundle steel strand cable 20 passes groove 32 on the connector 30, be fixed on the connector 30 by ground tackle 34.In addition, m bundle steel strand cable 10 and n bundle steel strand cable 20 are having metal bellows 40 near connector 30 part covers, and are provided with reinforcing ring 41 at an end of the close connector 30 of metal bellows 40.
In Practical Project, the type of concrete structure is different, it is excessive and spacing is too small to join bar diameter in some concrete structure, this causes connector 30 to be difficult for installing, and on connector 30 during steel strand, multi beam has the steel strand of ground tackle to be difficult for passing connector and penetrates bellows, causes the waste of time and manpower.In addition, connector 30 volumes are large, and perforation is many, make complicated.
The utility model content
The utility model is made for solving the problems of the technologies described above, its purpose is to provide a kind of change bundle steel strand cable so that this change bundle steel strand cable m is restrainted steel strand be transformed to the conversion fraction of n bundle steel strand simple in structure, install easy and safe.
To achieve these goals, the utility model provides a kind of change bundle steel strand cable, this change bundle steel strand cable is divided into two parts, a part is m bundle steel strand cable, another part is n bundle steel strand cables, and m, n are natural number and m〉n, described m bundle steel strand cable becomes described n bundle steel strand cable after by converter, wherein, described converter comprises m hole anchor plate; N bundle steel strand in the described m bundle steel strand cable pass n through hole on the anchor plate of described m hole at described converter place, form described n bundle steel strand cable; Remaining m-n bundle steel strand passes remaining m-n through hole on the anchor plate of described m hole at described converter place in the described m bundle steel strand cable, and is anchored on the anchor plate of described m hole by ground tackle.
Preferably, the n bundle steel strand in the described m bundle steel strand cable can be for being positioned at the n bundle steel strand of central authorities in this m bundle steel strand cable.Remaining m-n bundle steel strand can be for being positioned at the m-n bundle steel strand of periphery in the described m bundle steel strand cable in this m bundle steel strand cable.
In addition, preferably, described m bundle steel strand cable and described n bundle steel strand cable have metal bellows can overlapping near described converter part.End at the close described converter of described metal bellows can be provided with reinforcing ring.
From top description and practice as can be known, in change bundle steel strand cable described in the utility model, steel strand do not disconnect when becoming n bundle steel strand from m bundle steel strand, thus the safety that has improved structure.In addition, the converter in the change bundle steel strand cable described in the utility model is m hole anchor plate, it is simple in structure, volume is little, perforation less, the ground tackle use amount is little, thereby install easily.
Description of drawings
Fig. 1 is schematic top plan view, shows a kind of prestressed girder structure;
Fig. 2 is schematic top plan view, shows a kind of existing change bundle steel strand cable;
Fig. 3 is front elevational schematic, shows the connector among Fig. 2;
Fig. 4 is schematic top plan view, shows the described change bundle of an embodiment steel strand cable of the present utility model; And
Fig. 5 is front elevational schematic, shows the converter among Fig. 4.
The specific embodiment
An embodiment of change bundle steel strand cable described in the utility model is described below with reference to the accompanying drawings.Those of ordinary skill in the art can recognize, in the situation that does not depart from spirit and scope of the present utility model, can revise described embodiment with various mode.Therefore, accompanying drawing is illustrative with being described in essence, rather than is used for the protection domain of restriction claim.In addition, in this manual, identical Reference numeral represents same or analogous part.
Fig. 4 is schematic top plan view, shows the described change bundle of an embodiment steel strand cable of the present utility model, and Fig. 5 is front elevational schematic, shows the converter among Fig. 4.Fig. 5 is the elevation that the left side from Fig. 4 is seen when seeing converter.
As shown in Figure 4 and Figure 5, the described change bundle of an embodiment steel strand cable 200 of the present utility model is divided into two parts, a part is m bundle steel strand cable 10, another part is n bundle steel strand cable 20, m, n are natural number and m〉n, m bundle steel strand cable 10 becomes n bundle steel strand cable 20 after by converter 50.Wherein, converter 50 can be m hole anchor plate, is formed with m through hole 51 on it.N bundle steel strand in the m bundle steel strand cable 10 pass n through hole 51 on the anchor plate of described m hole at converter 50 places, form n bundle steel strand cable 20.And remaining m-n bundle steel strand passes remaining m-n through hole 51 on the anchor plate of described m hole in the m bundle steel strand cable 10 at converter 50 places, and is anchored on the anchor plate of described m hole by ground tackle 34.
Preferably, the n bundle steel strand in the m bundle steel strand cable 10 can be restrainted the n bundle steel strand that are positioned at central authorities in the steel strand cable 10 for m.And remaining m-n bundle steel strand can be restrainted the m-n bundle steel strand that are positioned at periphery in the steel strand cable 10 for m in the m bundle steel strand cable 10.
In addition, m bundle steel strand cable 10 and n bundle steel strand cable 20 has metal bellows 40 can overlapping near converter 50 parts.End at the close converter 50 of metal bellows 40 can be provided with reinforcing ring 41, in order to the steel strand cable is retrained.
From top description and practice as can be known, in change bundle steel strand cable described in the utility model, steel strand do not disconnect when becoming n bundle steel strand from m bundle steel strand, thus the safety that has improved structure.In addition, compared with prior art, the converter in the change bundle steel strand cable described in the utility model is m hole anchor plate, it is simple in structure, volume is little, perforation less, the ground tackle use amount is little, thereby install easily.
It will be appreciated by those skilled in the art that the change bundle steel strand cable that proposes for above-mentioned the utility model, can also make various improvement and combination on the basis that does not break away from the utility model content.Therefore, protection domain of the present utility model should be determined by the content of appending claims.
Claims (5)
1. one kind becomes bundle steel strand cable, it is characterized in that, this change bundle steel strand cable is divided into two parts, a part is m bundle steel strand cable, another part is n bundle steel strand cables, and m, n are natural number and m〉n, described m bundle steel strand cable becomes described n bundle steel strand cable after by converter, wherein, described converter comprises m hole anchor plate; N bundle steel strand in the described m bundle steel strand cable pass n through hole on the anchor plate of described m hole at described converter place, form described n bundle steel strand cable; Remaining m-n bundle steel strand passes remaining m-n through hole on the anchor plate of described m hole at described converter place in the described m bundle steel strand cable, and is anchored on the anchor plate of described m hole by ground tackle.
2. change bundle steel strand cable as claimed in claim 1 is characterized in that, the n bundle steel strand in the described m bundle steel strand cable are for being positioned at the n bundle steel strand of central authorities in this m bundle steel strand cable.
3. change bundle steel strand cable as claimed in claim 1 is characterized in that, remaining m-n bundle steel strand is for being positioned at the m-n bundle steel strand of periphery in the described m bundle steel strand cable in this m bundle steel strand cable.
4. change bundle steel strand cable as claimed in claim 1 is characterized in that, described m bundle steel strand cable and described n bundle steel strand cable are having metal bellows near described converter part cover.
5. change bundle steel strand cable as claimed in claim 4 is characterized in that, is provided with reinforcing ring at an end of the close described converter of described metal bellows.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220457294.7U CN202850355U (en) | 2012-09-07 | 2012-09-07 | Variable-beam steel strand cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220457294.7U CN202850355U (en) | 2012-09-07 | 2012-09-07 | Variable-beam steel strand cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202850355U true CN202850355U (en) | 2013-04-03 |
Family
ID=47981568
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220457294.7U Expired - Lifetime CN202850355U (en) | 2012-09-07 | 2012-09-07 | Variable-beam steel strand cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202850355U (en) |
-
2012
- 2012-09-07 CN CN201220457294.7U patent/CN202850355U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130403 |
|
| CX01 | Expiry of patent term |