CN101285333B - Special anchorage for combined variable-corrugated fiber sheets and prestressing force stretching method thereof - Google Patents
Special anchorage for combined variable-corrugated fiber sheets and prestressing force stretching method thereof Download PDFInfo
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- CN101285333B CN101285333B CN2008100314516A CN200810031451A CN101285333B CN 101285333 B CN101285333 B CN 101285333B CN 2008100314516 A CN2008100314516 A CN 2008100314516A CN 200810031451 A CN200810031451 A CN 200810031451A CN 101285333 B CN101285333 B CN 101285333B
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Abstract
The invention relates to a special anchorage device of a composite type variable corrugation fiber sheet material and the prestress tensioning of the same. The outer anchor shells of the special anchorage device are provided inside with locking square holes, wherein an upper corrugated clamping piece and a lower corrugated clamping piece inside a variable corrugation clamping piece are arranged inside the locking square holes; the upper top of each locking square hole is provided with a plurality of sets of pressure bolts to hang the upper corrugated clamping piece on the upper top of each locking square hole of the outer anchor shells; the inside of each outer anchor shell is provided with a perforated flat long narrow hole; a top pulling device is connected between the opposite sides ofthe flat long narrow hole of each outer anchor shell to form a unit outer anchor shell; and the unit outer anchor shell at one end of the top pulling device is a pre-anchoring end, while the other end of the top pulling device is a preadjusting end. Moreover, the special anchorage device adopts the technical proposal that: the outer anchor shells are fixed with the anchoring end of a box girder, and the unit outer anchor shell is fixed with the tensioning end of the box girder; meanwhile, the special anchorage device overcomes the disadvantages that: a prestressing fiber sheet material is easy to peel off and has low strength utilization rate, uneven anchorage device clamping force, easy looseness, high cost of a tensioning tool and complicated use and operation, etc. when reinforced and under stress; therefore, the special anchorage device can be used in a concrete box girder and a steel girder, etc. to realize external prestressing reinforcement and in the prior engineering member to realize reinforcement.
Description
Affiliated field
The present invention relates to build, the prestress anchoraging and the tensioning equipment of bridge construction member, particularly a kind of combined variable-corrugated fiber sheets Special ground tackle and pre-stress stretching method thereof.
Background technology
At present, transformation that there are many constructions in China because a variety of causes needs reinforcement, and more or less all there are some defectives in some reinforcement means commonly used that adopted.Therefore, constantly explore the research focus that more effective, more reasonable, more economical reinforcement means and reinforcement material become current field of civil engineering.In recent years, the fibre sheet material composite material has tensile strength height, light weight, antifatigue and characteristics such as corrosion-resistant with it and is introduced in building, bridge construction field of reinforcement and has obtained extensive use rapidly.The fibre sheet material composite material is as the desirable reinforcement material of structural element, simultaneously also have easy construction, to advantages such as former member section increment are little, but simply paste high strength fibre cloth in component surface, have only when reinforced structure member secondary load-bearing, when further deforming, high strength fibre cloth could participate in stressed, simultaneously, this reinforcing mode is to the adjustment of the rigidity of structural element, distortion and to improve effect very limited, and consolidation effect also is limited by construction technology and condition.Comparatively speaking, fibre sheet material composite material pre-stress reinforcement means can improve the above-mentioned conventional fiber cloth reinforced shortcoming of pasting to a great extent.But use fibre sheet material composite material pre-stress reinforcement means, also there is deficiency in its anchoring, at first be to set up prestressed tensioner to fibre reinforced composites (being called for short FRP), and its equipment complexity, complex operation step and tonnage are low; Next is that can the anchorage style of FRP (fibre reinforced composites) sheet material be directly connected to consolidation effect and realize, because fibre sheet material self shear behavior is relatively poor, prestressing force can cause the shear stress concentration of FRP sheet material end, thereby cause the easy and concrete binding interface generation stripping damage of FRP sheet material, consolidation effect is difficult to guarantee.And tensioner equipment manufacturing cost height, the actual inconvenience of using needs bigger work plane, and the stretch-draw effect is difficult to guarantee that the fibre sheet material rate of utilization of strength is still not high.
In addition, China's utility model patent notice of authorization number discloses mainly by last for CN 2594357Y " high strength composite waveform toothholder tool anchor ", following waveform tooth plate, put more energy into corrugated sheet and compressing and technical scheme that locking device etc. is formed, its weak point is very inconvenient when it adopts the stretch-draw of subsection tension method, because flat formula jack will lean on the stretch-draw end, following ripple intermediate plate, stressed even in the time of could realizing stretch-draw, be pressed on the fibre sheet material and will go up the ripple intermediate plate, then when jack tension, because the gravity of last ripple intermediate plate itself, to make the fibre sheet material damage bigger, the stretch-draw effect is bad.Also having Chinese invention patent Shen Qing Publication manual/publication number CN 101074578A " wedged variable-corrugated clip type fibre sheet material Special ground tackle " to disclose it is connected and composed through high-strength bolt by pressure cover, wedged variable-corrugated intermediate plate and outer anchor shell, the wedged variable-corrugated intermediate plate of last ripple intermediate plate and the superimposed composition of following ripple intermediate plate is inserted in the wedge-shaped impression of outer anchor shell, pressure cover is the anchor shell outside high-strength bolt connects, pressure is stamped boss and leans wedged variable-corrugated intermediate plate end face, and pressure cover and outer anchor shell opposite position place have rectangular flat hole respectively.It utilizes the principle of the frictional force self-locking between fibre sheet material and the wedged variable-corrugated intermediate plate and the pressure cover thrust to wedged variable-corrugated intermediate plate, with the reliable clamping of fibre sheet material and be anchored on the outer anchor shell.Also very inconvenient when it adopts the stretch-draw of subsection tension method, when it was used for the stretch-draw end, upper and lower ripple intermediate plate had damage to fibre sheet material.During second stretch-draw,, operate also more loaded down with trivial detailsly, fibre sheet material is had damage because the principle of frictional force self-locking between the wedged variable-corrugated intermediate plate will be unclamped relatively difficulty of upper and lower ripple intermediate plate.
Summary of the invention
At above-mentioned situation; the purpose of this invention is to provide a kind of combined variable-corrugated fiber sheets Special ground tackle and pre-stress stretching method thereof; it is simple in structure, adapts to widely, and cost is lower; fibre sheet material rate of utilization of strength height; can protect fibre sheet material injury-free again, and good integrity during stretch-draw, working service is easy; the anchoring clamping is convenient, and clamping power evenly, reliably.
For solving above-mentioned task, a kind of combined variable-corrugated fiber sheets Special ground tackle comprises that the fixedly ground tackle of case beam anchored end and pre-anchor ground tackle, preset ground tackle and the top of box girder tensioning end draw device, wherein:
The fixedly ground tackle of case beam anchored end is fixed on case beam anchored end, it comprises outer anchor shell, longitudinally be provided with the locking square hole in the outer anchor shell, in the locking square hole, the change ripple intermediate plate that comprises ripple intermediate plate and following ripple intermediate plate is set, the locking square hole upper top of outer anchor shell is laid array through becoming the pressure bolt that the ripple intermediate plate compresses fibre sheet material, it is movable fixing that the pressure bolt will be gone up the ripple intermediate plate by the bolt hole of locking square hole upper top correspondence, hang on the locking square hole upper top of outer anchor shell, following ripple intermediate plate is fixed on locking square hole lower bottom part, and a flat cylindrical void perpendicular to the locking square hole that runs through is set in the outer anchor shell;
The pre-anchor ground tackle of box girder tensioning end is connected with the box girder tensioning end, it comprises outer anchor shell, longitudinally be provided with the locking square hole in the outer anchor shell, in the locking square hole, the change ripple intermediate plate that comprises ripple intermediate plate and following ripple intermediate plate is set, the locking square hole upper top of outer anchor shell is laid array through becoming the pressure bolt that the ripple intermediate plate compresses fibre sheet material, it is movable fixing that the pressure bolt will be gone up the ripple intermediate plate by the bolt hole of locking square hole upper top correspondence, hang on the locking square hole upper top of outer anchor shell, following ripple intermediate plate is fixed on locking square hole lower bottom part, and a flat cylindrical void perpendicular to the locking square hole that runs through is set in the outer anchor shell;
The preset ground tackle of box girder tensioning end comprises outer anchor shell, longitudinally be provided with the locking square hole in the outer anchor shell, in the locking square hole, the change ripple intermediate plate that comprises ripple intermediate plate and following ripple intermediate plate is set, the locking square hole upper top of outer anchor shell is laid array through becoming the pressure bolt that the ripple intermediate plate compresses fibre sheet material, the pressure bolt will be gone up the locking square hole upper top that outer anchor shell was fixed, hung in the activity of ripple intermediate plate by the bolt hole of locking square hole upper top correspondence, following ripple intermediate plate is fixed on locking square hole lower bottom part, and a flat cylindrical void perpendicular to the locking square hole that runs through is set in the outer anchor shell;
Connect a top between the flat cylindrical void offside of two outer anchor shells of pre-anchor ground tackle, preset ground tackle and draw the outer anchor shell of device component units.
For implementation structure optimization, its concrete measure is:
Flat cylindrical void is radiation shape from inside to outside.
It is that device is drawn on the hydraulic drive type top that device is drawn on the top.
The top draws device to draw device for manpower drive-type top.
The pressure bolt is established more than three groups.
Further step for achieving the above object is:
Before a kind of pre-stress stretching method of combined variable-corrugated fiber sheets Special ground tackle, its stretch-draw operation the support diaphragm of concrete box girder, girder steel termination is done corresponding construction and manufacturing process processing, again by following operating procedure:
A, during stretch-draw, an end of at first choosing the case beam is an anchored end, the other end of choosing the case beam is the stretch-draw end, then, one side of the outer anchor shell of the fixedly ground tackle of case beam anchored end is embedded on the support diaphragm of case beam anchored end, one end of fibre sheet material is inserted in the change ripple intermediate plate in the fixing outer anchor shell locking of the ground tackle square hole, make fibre sheet material touch down the last corrugated surface of ripple intermediate plate, adjustment hangs on the following corrugated surface of last ripple intermediate plate of the outer anchor shell locking of fixing ground tackle square hole upper top to the upper surface that contacts fibre sheet material, regulate the pressure bolt then, make that pressure is bolt strained to compress fibre sheet material through becoming the ripple intermediate plate;
Draw in the change ripple intermediate plate of device to the locking square hole of the preset ground tackle of pre-anchor end on the top that the fibre sheet material other end after B, the anchoring penetrates the change ripple intermediate plate of case beam body to the locking square hole of the pre-anchor ground tackle of box girder tensioning end, pass anchor shell outside the unit again, carries out pre-anchoring by above-mentioned through becoming the clamping program that the ripple intermediate plate compresses fibre sheet material equally;
Device is drawn on the top of C, the outer anchor shell of start unit, makes the top that is connected between pre-anchor ground tackle, the preset ground tackle draw device stressed;
Device is drawn on D, the top of continuing the outer anchor shell of driver element, and it is stressed and whether observe fibre sheet material stretching to look fibre sheet material, and the pressure bolt on the outer anchor shell of the pre-anchor ground tackle of regulating box girder tensioning end is realized the pre-stretch-draw of fibre sheet material;
Pressure bolt on E, the outer anchor shell of adjusting preset ground tackle, transfer the pressure bolt on the outer anchor shell of the pre-anchor ground tackle of pine, because the last ripple intermediate plate that drives pre-anchor ground tackle that moves upward of pressure bolt moves upward, thereby separate with following ripple intermediate plate, make an end of fibre sheet material be fixed on the fixedly outer anchor shell of ground tackle of case beam anchored end, the other end of fibre sheet material is fixed on the outer anchor shell of the preset ground tackle of box girder tensioning end, continue the top of the outer anchor shell of driver element and draw device, look fibre sheet material stressed and observe fibre sheet material whether stretch-draw put in place;
F, look fibre sheet material stretch-draw and regulate and to finish, with the pressure bolt on the outer anchor shell of pre-anchor ground tackle with the fibre sheet material anchoring, transfer the pressure bolt of the outer anchor shell of loose preset ground tackle at last, device is drawn on the top that removes anchor shell outside the outer anchor shell of preset ground tackle and the unit, and cut the fibre sheet material in the outer anchor shell of the pre-anchor ground tackle of the box girder tensioning end outside, the external prestressing fibre sheet material reinforced concrete thin-walled box component stretch-draw anchor of this member finishes.
The pre-stress stretching method of a kind of combined variable-corrugated fiber sheets Special ground tackle of the present invention, it comprises the fixedly ground tackle of case beam anchored end and the pre-anchor ground tackle of box girder tensioning end, device is drawn on preset ground tackle and top, its ground tackle includes outer anchor shell, longitudinally be provided with the locking square hole in the outer anchor shell, in the locking square hole, the change ripple intermediate plate that comprises ripple intermediate plate and following ripple intermediate plate is set, the locking square hole upper top of outer anchor shell is laid array through becoming the pressure bolt that the ripple intermediate plate compresses fibre sheet material, it is movable fixing that the pressure bolt will be gone up the ripple intermediate plate by the bolt hole of locking square hole upper top correspondence, hang on the locking square hole upper top of outer anchor shell, following ripple intermediate plate is fixed on locking square hole lower bottom part, the one flat cylindrical void perpendicular to the locking square hole that runs through is set, pre-anchor ground tackle in the outer anchor shell, connect a top between the flat cylindrical void offside of two outer anchor shells of preset ground tackle and draw the outer anchor shell of device component units; During work, an end of choosing the case beam is an anchored end, the other end of choosing the case beam is the stretch-draw end, then, one side of the outer anchor shell of the fixedly ground tackle of case beam anchored end is embedded on the support diaphragm of case beam anchored end, fibre sheet material one end inserts in the change ripple intermediate plate of fixing ground tackle, and the other end penetrates the top that the case beam passes anchor shell outside the unit to the change ripple intermediate plate of anchor ground tackle in advance, again and draws device to the change ripple intermediate plate of preset ground tackle, regulates the pressure bolt then and compresses fibre sheet material; Having overcome the pre-stress fibre sheet material is reinforcing that easily peel off stressed back, rate of utilization of strength is not high and ground tackle clamping power is inhomogeneous and is being easy to relax and defectives such as tensioner cost height, use, complex operation.
The beneficial effect that the present invention is produced compared to existing technology: (I) rational in infrastructure, good integrity, stripping damage can not take place in fibre sheet material after reinforcing is stressed; (II) anchoring, clamping are reliable, wide accommodation; (III) can carry out repeatedly stretch-draw and stretch-draw quick, clamping power evenly, reliable; (IV) anchoring, clamping are conveniently used, are safeguarded easily, can also protect fibre sheet material injury-free, and fibre sheet material rate of utilization of strength height is cheap, the cost performance height.
It is widely used in the Special ground tackle that Engineering Structure Component such as concrete box girder, girder steel realize that external prestressing strengthens, and also can be widely used in the Special ground tackle that existing Engineering Structure Component realizes reinforcing.
The invention will be further described below in conjunction with the drawings and specific embodiments.
Description of drawings
Fig. 1 is the view of combined variable-corrugated fiber sheets Special ground tackle.
Fig. 2 is the stereogram that shows outer anchor shell among Fig. 1, becomes ripple intermediate plate, pressure bolt.
Fig. 3 is outer anchor shell of Fig. 2 and the A-A view in transverse section that becomes ripple intermediate plate, pressure bolt thereof.
Fig. 4 shows among Fig. 1 to push up the stereogram that draws device.
Among the figure: 1, outer anchor shell, 11, the locking square hole, 12, flat cylindrical void, 2, become the ripple intermediate plate, 21, go up the ripple intermediate plate, 22, ripple intermediate plate down, 3, the pressure bolt, 4, the top draws device, 5, anchor shell outside the unit, 6, the case beam, 7, fibre sheet material.
The specific embodiment
Referring to accompanying drawing 1-4, combined variable-corrugated fiber sheets Special ground tackle of the present invention, it comprises outer anchor shell 1, become ripple intermediate plate 2, pressure bolt 3, vertically offer locking square hole 11 in its outer anchor shell 1, in the locking square hole 11 the change ripple intermediate plate 2 that comprises ripple intermediate plate 21 and following ripple intermediate plate 22 is set, locking square hole 11 upper tops of outer anchor shell 1 are laid with three groups with upward pressure bolt 3, it is movable fixing that pressure bolt 3 will be gone up ripple intermediate plate 21 by the bolt hole of locking square hole 11 upper top correspondences, hang on locking square hole 11 upper tops of outer anchor shell 1,22 of following ripple intermediate plates are fixed on locking square hole 11 lower bottom parts.In the outer anchor shell 1 perpendicular to locking square hole 11 a flat cylindrical void 12 that runs through is set, hung badly or cut off by flat cylindrical void 12 in anchoring, stretching process in order to prevent fibre sheet material 7, flat cylindrical void 12 is increased, reach the contact surface that dwindles fibre sheet material 7 and flat cylindrical void 12, scope of activities when making fibre sheet material 7 tensions increases, so the shape of flat cylindrical void 12 is to be radiation shape from inside to outside.Connect hydraulic drive type top between flat cylindrical void 12 offsides of two outer anchor shells 1 and draw device 4 or manpower drive-type top to draw the outer anchor shell 5 of device 4 component units, its top draws the outer anchor shell 5 in the unit of device 4 one ends to be pre-anchor end, and anchor shell 5 is the preset end outside the unit of the other end.Pre-anchor end and case beam 6 stretch-draw ends are connected and fixed.
Referring to accompanying drawing, the prestressed stretch-draw of combined variable-corrugated fiber sheets Special ground tackle of the present invention, getting case beam 6 one ends is anchored end, and getting case beam 6 other ends is the stretch-draw end, and outer anchor shell 1 is fixed on the anchored end of case beam 6, and anchor shell 5 is fixed on the stretch-draw end of case beam 6 outside the unit; During stretch-draw, one side of outer anchor shell 1 is embedded on the support diaphragm of case beam 6 anchored end, one end of fibre sheet material 7 is inserted in the change ripple intermediate plate 2 in the outer anchor shell 1 locking square hole 11, make fibre sheet material 7 touch down the last corrugated surface of ripple intermediate plate 22, adjustment hangs on the following corrugated surface of last ripple intermediate plate 21 of outer anchor shell 1 locking square hole 11 upper tops to the upper surface that contacts fibre sheet material 7, regulate pressure bolt 3 then, make that pressure bolt 3 is stressed to compress fibre sheet material 7 through becoming ripple intermediate plate 2; Fibre sheet material 7 other ends after the anchoring penetrate change ripple intermediate plate 2 in the pre-anchor ends locking of case beam 6 bodies anchor shell 5 to the case beam 6 stretch-draw end units square holes 11, pass the top again draws in the interior change ripple intermediate plate 2 of device 4 anchor shell 5 preset ends locking square hole 11 to the unit, make fibre sheet material 7 touch down the last corrugated surface of ripple intermediate plate 22 equally, adjustment hangs on the following corrugated surface of last ripple intermediate plate 21 of outer anchor shell 1 locking square hole 11 upper tops to the upper surface that contacts fibre sheet material 7, regulate pressure bolt 3 then, make that pressure bolt 3 is stressed to compress fibre sheet material 7 through becoming ripple intermediate plate 2.
Referring to accompanying drawing, operate as normal of the present invention is:
Realize the pre-stress stretching method of combined variable-corrugated fiber sheets Special ground tackle, before its stretch-draw operation the support diaphragm of concrete box girder, girder steel termination is done corresponding construction and manufacturing process processing, again by following operating procedure:
A, during stretch-draw, an end of at first choosing case beam 6 is an anchored end, the other end of choosing case beam 6 is the stretch-draw end, then, one side of the outer anchor shell 1 of the fixedly ground tackle of case beam 6 anchored end is embedded on the support diaphragm of case beam 6 anchored end, one end of fibre sheet material 7 is inserted in the change ripple intermediate plate 2 that fixedly the outer anchor shell 1 of ground tackle is locked in the square hole 11, make fibre sheet material 7 touch down the last corrugated surface of ripple intermediate plate 22, adjustment hangs on the following corrugated surface of last ripple intermediate plate 21 of the outer anchor shell 1 locking square hole of fixing ground tackle 11 upper tops to the upper surface that contacts fibre sheet material 7, regulate pressure bolt 3 then, make that pressure bolt 3 is stressed to compress fibre sheet material 7 through becoming ripple intermediate plate 2;
Draw in the change ripple intermediate plate 2 of device 4 to the locking square hole 11 of the preset ground tackle of pre-anchor end on the top that fibre sheet material 7 other ends after B, the anchoring penetrate the change ripple intermediate plate 2 of case beam 6 bodies to the locking square hole 11 of the pre-anchor ground tackle of case beam 6 stretch-draw ends, pass anchor shell 5 unit outside again, carries out pre-anchoring by the above-mentioned clamping program that compresses fibre sheet material 7 through change ripple intermediate plate 2 equally;
C, startup hydraulic drive type top draw device 4 or manpower drive-type top to draw device 4, make the top of anchor shell 5 outside the unit that is connected between pre-anchor ground tackle, the preset ground tackle draw device 4 stressed;
F, look fibre sheet material 7 stretch-draw and regulate and to finish, with the pressure bolt 3 on the outer anchor shell 1 of pre-anchor ground tackle with fibre sheet material 7 anchorings, transfer the pressure bolt 3 of the outer anchor shell 1 of loose preset ground tackle at last, device 4 is drawn on the top that removes anchor shell 5 outside the outer anchor shell 1 of preset ground tackle and the unit, and cut the fibre sheet material 7 in outer anchor shell 1 outside of the pre-anchor ground tackle of case beam 6 stretch-draw ends, the external prestressing fibre sheet material 7 reinforced concrete thin-walled box component stretch-draw anchors of this member finish.
Below only be preferred embodiment of the present invention, according to above-mentioned design of the present invention, those skilled in the art also can make various modifications and conversion to this.For example outer anchor shell, locking square hole, flat cylindrical void, change ripple intermediate plate, pressure bolt, top draw anchor shell outside device, the unit etc. to interconnect and the modification and the conversion of structure.And similar this conversion and modification all belong to essence of the present invention.
Claims (6)
1. combined variable-corrugated fiber sheets Special ground tackle comprises that the fixedly ground tackle of case beam (6) anchored end and pre-anchor ground tackle, preset ground tackle and the top of case beam (6) stretch-draw end draw device (4), it is characterized in that:
The fixedly ground tackle of case beam (6) anchored end is fixed on case beam (6) anchored end, it comprises outer anchor shell (1), longitudinally be provided with locking square hole (11) in the outer anchor shell (1), the change ripple intermediate plate (2) that comprises ripple intermediate plate (21) and following ripple intermediate plate (22) is set in locking square hole (11), locking square hole (11) upper top of outer anchor shell (1) is laid array through becoming the pressure bolt (3) that ripple intermediate plate (2) compresses fibre sheet material (7), it is movable fixing that pressure bolt (3) will be gone up ripple intermediate plate (21) by the bolt hole of locking square hole (11) upper top correspondence, hang on locking square hole (11) upper top of outer anchor shell (1), following ripple intermediate plate (22) is fixed on locking square hole (11) lower bottom part, and a flat cylindrical void (12) perpendicular to locking square hole (11) that runs through is set in the outer anchor shell (1);
The pre-anchor ground tackle of case beam (6) stretch-draw end is connected with case beam (6) stretch-draw end, it comprises outer anchor shell (1), longitudinally be provided with locking square hole (11) in the outer anchor shell (1), the change ripple intermediate plate (2) that comprises ripple intermediate plate (21) and following ripple intermediate plate (22) is set in locking square hole (11), locking square hole (11) upper top of outer anchor shell (1) is laid array through becoming the pressure bolt (3) that ripple intermediate plate (2) compresses fibre sheet material (7), it is movable fixing that pressure bolt (3) will be gone up ripple intermediate plate (21) by the bolt hole of locking square hole (11) upper top correspondence, hang on locking square hole (11) upper top of outer anchor shell (1), following ripple intermediate plate (22) is fixed on locking square hole (11) lower bottom part, and a flat cylindrical void (12) perpendicular to locking square hole (11) that runs through is set in the outer anchor shell (1);
The preset ground tackle of case beam (6) stretch-draw end comprises outer anchor shell (1), longitudinally be provided with locking square hole (11) in the outer anchor shell (1), the change ripple intermediate plate (2) that comprises ripple intermediate plate (21) and following ripple intermediate plate (22) is set in locking square hole (11), locking square hole (11) upper top of outer anchor shell (1) is laid array through becoming the pressure bolt (3) that ripple intermediate plate (2) compresses fibre sheet material (7), it is movable fixing that pressure bolt (3) will be gone up ripple intermediate plate (21) by the bolt hole of locking square hole (11) upper top correspondence, hang on locking square hole (11) upper top of outer anchor shell (1), following ripple intermediate plate (22) is fixed on locking square hole (11) lower bottom part, and a flat cylindrical void (12) perpendicular to locking square hole (11) that runs through is set in the outer anchor shell (1);
Connect a top between flat cylindrical void (12) offside of two outer anchor shells (1) of pre-anchor ground tackle, preset ground tackle and draw the outer anchor shell (5) of device (4) component units.
2. combined variable-corrugated fiber sheets Special ground tackle according to claim 1 is characterized in that flat cylindrical void (12) is radiation shape from inside to outside.
3. combined variable-corrugated fiber sheets Special ground tackle according to claim 1 is characterized in that pushing up and draws device (4) to draw device for the hydraulic drive type top.
4. combined variable-corrugated fiber sheets Special ground tackle according to claim 1 is characterized in that pushing up and draws device (4) to draw device for manpower drive-type top.
5. combined variable-corrugated fiber sheets Special ground tackle according to claim 1 is characterized in that pressure bolt (3) establishes more than three groups.
6. realize the pre-stress stretching method of the described combined variable-corrugated fiber sheets Special ground tackle of claim 1, it is characterized in that before the stretch-draw operation support diaphragm of concrete box girder, girder steel termination being done corresponding construction and manufacturing process processing, again by following operating procedure:
A, during stretch-draw, an end of at first choosing case beam (6) is an anchored end, the other end of choosing case beam (6) is the stretch-draw end, then, one side of the outer anchor shell (1) of the fixedly ground tackle of case beam (6) anchored end is embedded on the support diaphragm of case beam (6) anchored end, one end of fibre sheet material (7) is inserted in the change ripple intermediate plate (2) in fixing outer anchor shell (1) the locking square hole of ground tackle (11), make fibre sheet material (7) touch down the last corrugated surface of ripple intermediate plate (22), adjustment hangs on the following corrugated surface of last ripple intermediate plate (21) of outer anchor shell (1) locking of fixing ground tackle square hole (11) upper top to the upper surface that contacts fibre sheet material (7), regulate pressure bolt (3) then, make that pressure bolt (3) is stressed to compress fibre sheet material (7) through becoming ripple intermediate plate (2);
Draw in the change ripple intermediate plate (2) of device (4) to the locking square hole (11) of the preset ground tackle of pre-anchor end on the top that fibre sheet material after B, the anchoring (7) other end penetrates the change ripple intermediate plate (2) of case beam (6) body to the locking square hole (11) of the pre-anchor ground tackle of case beam (6) stretch-draw end, pass anchor shell (5) unit outside again, carries out pre-anchoring by the above-mentioned clamping program that compresses fibre sheet material (7) through change ripple intermediate plate (2) equally;
Device (4) is drawn on C, startup top, makes the top of anchor shell (5) outside the unit that is connected between pre-anchor ground tackle, the preset ground tackle draw device (4) stressed;
Device (4) is drawn on the top of D, the outer anchor shell (5) of continuation driver element, it is stressed and whether observe fibre sheet material (7) stretching to look fibre sheet material (7), pressure bolt (3) on the outer anchor shell (1) of the pre-anchor ground tackle of regulating box beam (6) stretch-draw end is realized the pre-stretch-draw of fibre sheet material (7);
E, regulate the pressure bolt (3) on the outer anchor shell (1) of preset ground tackle, transfer the pressure bolt (3) on the outer anchor shell (1) of the pre-anchor ground tackle of pine, because the last ripple intermediate plate (21) that drives pre-anchor ground tackle that moves upward of pressure bolt (3) moves upward, thereby separate with following ripple intermediate plate (22), make an end of fibre sheet material (7) be fixed on the fixedly outer anchor shell (1) of ground tackle of case beam (6) anchored end, the other end of fibre sheet material (7) is fixed on the outer anchor shell (1) of the preset ground tackle of case beam (6) stretch-draw end, continue the top of the outer anchor shell (5) of driver element and draw device (4), look fibre sheet material (7) stressed and observe fibre sheet material (7) whether stretch-draw put in place;
F, look fibre sheet material (7) stretch-draw and regulate and to finish, with the pressure bolt (3) on the outer anchor shell (1) of pre-anchor ground tackle with fibre sheet material (7) anchoring, transfer the pressure bolt (3) of the outer anchor shell (1) of loose preset ground tackle at last, device (4) is drawn on the top that removes anchor shell (5) outside the outer anchor shell (1) of preset ground tackle and the unit, and cut the fibre sheet material (7) in the outer anchor shell (1) of the pre-anchor ground tackle of case beam (6) the stretch-draw end outside, external prestressing fibre sheet material (7) the reinforced concrete thin-walled box component stretch-draw anchor of this member finishes.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100314516A CN101285333B (en) | 2008-06-06 | 2008-06-06 | Special anchorage for combined variable-corrugated fiber sheets and prestressing force stretching method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100314516A CN101285333B (en) | 2008-06-06 | 2008-06-06 | Special anchorage for combined variable-corrugated fiber sheets and prestressing force stretching method thereof |
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| CN101285333B true CN101285333B (en) | 2010-08-04 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| EP2912239B1 (en) * | 2012-09-17 | 2023-03-15 | Cpc Ag | Reinforcing element for producing prestressed concrete components, concrete component and production methods |
| CN105369985A (en) * | 2015-12-11 | 2016-03-02 | 招商局重庆交通科研设计院有限公司 | Curved-plate type anchorage device for carbon fiber plates |
| CN107700867A (en) * | 2017-10-13 | 2018-02-16 | 华南理工大学 | A kind of flexible FRP sheet materials pre-stress stretching device and method |
| CN114396136B (en) * | 2021-12-22 | 2023-04-14 | 浙江大学 | FRCM plate prestress applying and loss monitoring process and product thereof |
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| CN2594357Y (en) * | 2002-10-29 | 2003-12-24 | 卓静 | High-strength composite material waveform tooth clamp anchor |
| CN1827975A (en) * | 2006-03-30 | 2006-09-06 | 尚守平 | Carbon fiber board anchor for civil engineering construction |
| CN2818624Y (en) * | 2005-05-31 | 2006-09-20 | 南京工业大学 | Clamping piece solid anchor device of FRP slab |
| US20070007405A1 (en) * | 2003-10-03 | 2007-01-11 | University Of Waterloo | Tension anchorage system |
| CN101074578A (en) * | 2007-06-14 | 2007-11-21 | 湖南科技大学 | Special anchoros for wedged variable-corrugated clamped sheets |
| JP2007314970A (en) * | 2006-05-24 | 2007-12-06 | Sumitomo Denko Steel Wire Kk | Fixing structure with jump preventing mechanism of pc steel bar |
| CN201209292Y (en) * | 2008-06-06 | 2009-03-18 | 湖南科技大学 | Anchorage special for combination corrugation changing fibre sheet material |
-
2008
- 2008-06-06 CN CN2008100314516A patent/CN101285333B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2594357Y (en) * | 2002-10-29 | 2003-12-24 | 卓静 | High-strength composite material waveform tooth clamp anchor |
| US20070007405A1 (en) * | 2003-10-03 | 2007-01-11 | University Of Waterloo | Tension anchorage system |
| CN2818624Y (en) * | 2005-05-31 | 2006-09-20 | 南京工业大学 | Clamping piece solid anchor device of FRP slab |
| CN1827975A (en) * | 2006-03-30 | 2006-09-06 | 尚守平 | Carbon fiber board anchor for civil engineering construction |
| JP2007314970A (en) * | 2006-05-24 | 2007-12-06 | Sumitomo Denko Steel Wire Kk | Fixing structure with jump preventing mechanism of pc steel bar |
| CN101074578A (en) * | 2007-06-14 | 2007-11-21 | 湖南科技大学 | Special anchoros for wedged variable-corrugated clamped sheets |
| CN201209292Y (en) * | 2008-06-06 | 2009-03-18 | 湖南科技大学 | Anchorage special for combination corrugation changing fibre sheet material |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101285333A (en) | 2008-10-15 |
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