CN101392599B - Stay stretching bias-jointing force transmission beam - Google Patents
Stay stretching bias-jointing force transmission beam Download PDFInfo
- Publication number
- CN101392599B CN101392599B CN2008101950839A CN200810195083A CN101392599B CN 101392599 B CN101392599 B CN 101392599B CN 2008101950839 A CN2008101950839 A CN 2008101950839A CN 200810195083 A CN200810195083 A CN 200810195083A CN 101392599 B CN101392599 B CN 101392599B
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- Prior art keywords
- stiffening rib
- force transmission
- transmission beam
- stiffening ribs
- stretch
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Abstract
The invention relates to a stretch-draw mitred force transferring cross beam for a guy cable, which comprises an upper top slab (1), a lower base (2), a central pipe (3) and stiffening ribs (4), wherein the upper top slab (1) and the lower base (2) are fixed on the upper side and the lower side of the central pipe (3) respectively; the stiffening ribs (4) comprise vertical stiffening ribs (41) and insequent-intersection stiffening ribs (42); the upper ends and the lower ends of the vertical stiffening ribs (41) and the insequent-intersection stiffening ribs (42) are connected with the top slab (1) and the lower base (2) respectively; the inner sides of the vertical stiffening ribs (41) and the insequent-intersection stiffening ribs (42) are fixed on the central pipe (3) respectively; the force transferring cross beam is obliquely divided into two symmetrical parts along the midline of one of the insequent-intersection stiffening ribs (42); and the two symmetrical parts are fixed together by fixing pieces (5). Therefore, the weight of the cross beam can be reduced, transverse tension in the stretch-draw process can be effectively overcome, and the safety in the construction process can be improved.
Description
Technical field
The invention belongs to the force transmission beam device that is installed on rope head place that in the Construction of Civil Engineering drag-lines such as steel tendon twisting, steel wire bundle assembling or reinforcing pull rod is carried out prestressed stretch-draw.
Background technology
In the prestressed steel structure of civil engineering, rope membrane structure, curtain wall rope bar supporting construction, all there is drag-line need apply pretension.Drag-line can be various ways such as the half parallel twisting of high-strength steel tow, many steel strand assemblings or rod iron pull bar.When drag-line being applied pretension both at home and abroad, all need to insert and put force transmission beam at the shoulder place of stay cable end rope head, during known stretch-draw force transmission beam processing and fabricating all the axis of symmetry along force transmission beam rectangle pressure-bearing surface break it into two, when on-the-spot tensioning equipment is installed the two halves block is held on rope head shoulder place, connects into the transfer beam of an integral body with bolt.This stretch-draw force transmission beam is when processing and fabricating, at stretch-draw hydraulic jack punching pull bar application point with the half rounds tube stay need weld in rope head shoulder place and stiffening rib guarantees that the strength and stiffness of force transmission beam can reach the stretch-draw requirement, and the layout of stiffening rib need be taken into account the layout of force transmission beam two parts to fashionable connecting bolt, the scale of construction that finally causes known force transmission beam is big, weight is heavier, is unfavorable for the fitting operation of the whole tensioning equipment in job site.In addition, because known force transmission beam is along the axis of symmetry subdivision of pressure-bearing surface, during drag-line stretch-draw, under bigger stretching force effect, between the two involutory blocks of force transmission beam, because bearing bigger pressure will produce bigger horizontal tension, all unfavorable to connecting bolt and force transmission beam, the safety deficiency in the work progress.
Summary of the invention
Technical problem: big and be unfavorable for the deficiency of tensioning equipment and connecting bolt for overcoming the existing stretch-draw force transmission beam scale of construction, the invention provides a kind of stay stretching bias-jointing force transmission beam, the required diagonal ribs of putting more energy into floor and oblique edge joint position of force transmission beam under the stretch-draw jack pressure-bearing end face is integrated, can not only reduce the scale of construction of stretch-draw force transmission beam, and can effectively overcome the horizontal tension that produces in the stretching process, increase the safety in the work progress.
Technical scheme: stay stretching bias-jointing force transmission beam of the present invention comprises upper plate, lower bottom base, central tube, stiffening rib, upper plate, lower bottom base are separately fixed at the upper and lower both sides of central tube, stiffening rib comprises vertical stiffeners and diagonal cross stiffening rib, the upper/lower terminal of vertical stiffeners and diagonal cross stiffening rib is connected with upper plate, lower bottom base respectively, and the inboard of vertical stiffeners and diagonal cross stiffening rib is separately fixed on the central tube; Center line along a stiffening rib in the diagonal cross stiffening rib is divided into two the oblique two parts symmetrical that is divided into of force transmission beam, and this two parts symmetrical is fixed together by fixture.
The diagonal cross stiffening rib improves the supporting capacity of upper plate directly as the bearing stiffener of stretch-draw jack pressure-bearing end face.The diagonal cross stiffening rib is positioned at half that one-sided stiffening rib steel plate thickness on the oblique cut-off rule equals to be adjacent stiffening rib steel plate thickness.
Beneficial effect: of the present invention along the oblique mode of cutting apart of force transmission beam pressure-bearing surface, and when welding production, earlier it is welded as a whole, not only can guarantee that two part force transmission beams are closely connected involutory, and the integrality in stretch-draw hole on the force transmission beam pressure-bearing surface that penetrated of the stretch-draw power transmission screw rod that has guaranteed the punching jack, greatly reduce the horizontal tension that two semi-synthetic transfer beam connecting bolts are born.In addition, employing had both guaranteed the strength and stiffness that it is required along the diagonal welding stiffening rib of force transmission beam pressure-bearing surface, double as is the pressure-bearing stiffener under the stretch-draw jack end face area force transmission beam upper plate again, the scale of construction and the weight of force transmission beam have been reduced, the safety of being convenient to on-the-spot overhead prestressed drag-line tension operation and improving mobile stretch-draw force transmission beam in the operation process.
Description of drawings
The present invention is described in more detail below in conjunction with drawings and Examples:
Fig. 1 is the whole schematic three dimensional views of the present invention.
Fig. 2 is the oblique assembling schematic diagram of cutting apart of force transmission beam of the present invention.
Fig. 3 is a type floor map of the present invention.
Fig. 4 is an elevational schematic view of the present invention.
Have among the figure: upper plate 1, lower bottom base 2, central tube 3, vertical stiffeners 41, diagonal cross stiffening rib 42, fixture 5, oblique cut-off rule 6, stretch-draw hole 7.
The specific embodiment
The present invention has changed the partitioning scheme that known force transmission beam is divided into two along axis of symmetry, adopts along the oblique mode of cutting apart of force transmission beam pressure-bearing surface.Force transmission beam is in manufacturing process, obliquely cut apart the integrality that the stretch-draw power transmission screw rod that not only guarantees the feed-through hydraulic jack is boxed out on the force transmission beam steel plate, and having changed the arrangement of stiffening rib, stiffening rib promptly of the present invention adopts the mode along the oblique layout of pressure-bearing surface.In addition, in the force transmission beam welding production process, for guaranteeing the involutory leakproofness of two part force transmission beams, earlier it is done as a whole the welding, treat all pressure-bearing surface steel plates and put more energy into along the oblique cut-off rule of setting in advance force transmission beam to be divided into two behind the floor welding fabrication, the bonding surface of oblique synthetic integral body adopts bolt to connect between two parts force transmission beam.
Be specially upper plate 1, lower bottom base 2 and be separately fixed at the upper and lower both sides of central tube 3, stiffening rib 4 comprises vertical stiffeners 41 and diagonal cross stiffening rib 42, the upper/lower terminal of vertical stiffeners 41 and diagonal cross stiffening rib 42 is connected with upper plate 1, lower bottom base 2 respectively, and the inboard of vertical stiffeners 41 and diagonal cross stiffening rib 42 is separately fixed on the central tube 3; Center line along a stiffening rib in the diagonal cross stiffening rib 42 is divided into two the oblique two parts symmetrical that is divided into of force transmission beam, and this two parts symmetrical is fixed together by fixture 5.
(Fig. 1 is first integral solder a) with the stretch-draw force transmission beam, after the welding fabrication, oblique cut-off rule (Fig. 3) along stretch-draw force transmission beam (Fig. 1) pressure-bearing surface is two parts (Fig. 2) with stretch-draw force transmission beam (Fig. 1) subdivision, during on-the-spot stretching construction, again with two parts (Fig. 4) of stretch-draw force transmission beam to synthetic integral body.
Claims (3)
1. stay stretching bias-jointing force transmission beam, it is characterized in that this drag-line stretch-draw force transmission beam comprises upper plate (1), lower bottom base (2), central tube (3), stiffening rib (4), upper plate (1), lower bottom base (2) be separately fixed at central tube (3) on, following both sides, stiffening rib (4) comprises vertical stiffeners (41) and diagonal cross stiffening rib (42), on vertical stiffeners (41) and the diagonal cross stiffening rib (42), following two ends respectively with upper plate (1), lower bottom base (2) connects, and the inboard of vertical stiffeners (41) and diagonal cross stiffening rib (42) is separately fixed on the central tube (3); Center line along a stiffening rib in the diagonal cross stiffening rib (42) is divided into two the oblique two parts symmetrical that is divided into of force transmission beam, and this two parts symmetrical is fixed together by fixture (5).
2. stay stretching bias-jointing force transmission beam according to claim 1 is characterized in that diagonal cross stiffening rib (42) directly as the bearing stiffener of stretch-draw jack pressure-bearing end face, improves the supporting capacity of upper plate (1).
3. stay stretching bias-jointing force transmission beam according to claim 1 is characterized in that diagonal cross stiffening rib (42) is positioned at half that one-sided stiffening rib steel plate thickness on the oblique cut-off rule equals to be adjacent stiffening rib steel plate thickness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101950839A CN101392599B (en) | 2008-10-29 | 2008-10-29 | Stay stretching bias-jointing force transmission beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101950839A CN101392599B (en) | 2008-10-29 | 2008-10-29 | Stay stretching bias-jointing force transmission beam |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101392599A CN101392599A (en) | 2009-03-25 |
| CN101392599B true CN101392599B (en) | 2010-07-14 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101950839A Expired - Fee Related CN101392599B (en) | 2008-10-29 | 2008-10-29 | Stay stretching bias-jointing force transmission beam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101392599B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113756192B (en) * | 2021-08-20 | 2023-03-21 | 中铁十六局集团第五工程有限公司 | Bridge stay cable stretch-draw spike device |
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2008
- 2008-10-29 CN CN2008101950839A patent/CN101392599B/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN101392599A (en) | 2009-03-25 |
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| PB01 | Publication | ||
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| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100714 Termination date: 20121029 |