CN203171794U - Special template for orthogonal diagonal prefabricated box beams at broadening positions of forks of expressways - Google Patents
Special template for orthogonal diagonal prefabricated box beams at broadening positions of forks of expressways Download PDFInfo
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- CN203171794U CN203171794U CN 201320218944 CN201320218944U CN203171794U CN 203171794 U CN203171794 U CN 203171794U CN 201320218944 CN201320218944 CN 201320218944 CN 201320218944 U CN201320218944 U CN 201320218944U CN 203171794 U CN203171794 U CN 203171794U
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Abstract
The utility model provides a special template for orthogonal diagonal prefabricated box beams at broadening positions of forks of expressways to overcome the defects that end cross beams and middle cross beams of the box beams are difficult to construct and the transverse rigidity of the box beams is poor in the prior art. The special template comprises a box beam end cross beam and middle cross beam angle adjusting template and a box beam inner die length adjusting template, wherein the box beam end cross beam and middle cross beam angle adjusting template is used for adjusting side dies of the end cross beams and the middle cross beams to be parallel with beam end lines, and the box beam length adjusting template is used for adjusting lengths of inner dies. Compared with the prior art, the special template has the advantages that by the aid of the special template, angles and lengths of the box beams can be adjusted, so that the beams of various angles are prefabricated by the orthogonal template; cast-in-situ sections of the end cross beams and the middle cross beams of the box beams are simple to construct, so that the working efficiency is improved; and the transverse force transfer of the box beams is direct, so that the transverse rigidity of the box beams is improved.
Description
Technical field
The utility model relates to the prefabricated case beam template, particularly, is the broaden dedicated templates of place's orthogonal-diagonal lattice prefabricated case beam of a kind of highway fork.
Background technology
Highway changes greatly with bridge form turnover service area and interchange overpass turnoff bridge deck width, from relaxing curve, reaches maximum to the turnoff.The general Small Precast Box beam that adopts of design satisfies the needs that bridge deck width changes by the width of adjusting vertically wet seam.The situation that case beam orthogonal-diagonal lattice so just occurs makes the center line of every Pin case beam beam-ends line and bent cap have the angle of cut, length to have nothing in common with each other.
Because design, unit in charge of construction all do not attract great attention to this, unit in charge of construction usually beam prefabricated by the quadrature case of design drawing, put, causing case beam-ends crossbeam, cast-in-place section construction of middle cross beam to be got up quite bothers, especially vertically wet seam hour only adds the wide beam size and connects reluctantly, and not point-blank; Make case beam pass force crossly not direct, integral rigidity weakens greatly.
Summary of the invention
The purpose of this utility model is to overcome the defective that has case beam-ends crossbeam, middle cross beam constructional difficulties and box girder integral rigidity difference in the prior art, thus the dedicated templates that provides a kind of highway fork to broaden place's orthogonal-diagonal lattice prefabricated case beam.
For achieving the above object, the technical solution adopted in the utility model is: a kind of highway fork broadens and locates the dedicated templates of orthogonal-diagonal lattice prefabricated case beam, comprises case beam angle adjustment template and box girder inner formwork length adjustment template,
Described case beam-ends crossbeam, middle cross beam angle adjustment template, be used for adjusting side form and the beam-ends line parallel of end floor beam, middle cross beam, comprise the big keel of case beam side, side form panel, end floor beam, middle cross beam side form ribbed stiffener and adjust the angle leading screw, the big keel of case beam side and end floor beam, middle cross beam side form ribbed stiffener surface fixation side die face plate, the two ends of adjusting the angle leading screw are hinged with the big keel of case beam side and end floor beam, middle cross beam side form ribbed stiffener respectively;
Described box girder inner formwork length adjustment template, be used for adjusting internal mold length, comprise the internal mold ribbed stiffener, adjust leading screw, box girder inner formwork panel and telescopic joint panel, box girder inner formwork panel bottom arranges the internal mold ribbed stiffener, two box girder inner formwork panel connects by the adjustment leading screw that is arranged on the internal mold ribbed stiffener, and the telescopic joint panel places the outer surface of two box girder inner formwork panels.
The technical solution of the utility model is based on the characteristics of quadrature with oblique case beam: the beam body template of (1) quadrature and oblique is consistent, and difference is that vertical putting position of template has the changing of the relative positions.(2) for the beam-ends line, the beam-ends line of quadrature is perpendicular to the center line of beam, and the beam-ends line of oblique and the center line of beam are not quadratures.(3) the beam-ends line of quadrature, end floor beam, middle cross beam are perpendicular to the center line of beam; The beam-ends line of oblique, end floor beam, middle cross beam and case beam center line have an angle, and this angle just in time equals case beam center line and put angle on bent cap.(4) the case beam length is short, and for continuous beam, the side direction template of end does not change continuously, and the length of beam needs only mobile bulkhead and just can realize; The section of internal mold designing requirement case beam-ends head variable cross-section reinforcement can not change, and changing beam length must add a telescopic joint at the internal mold mid portion.Based on These characteristics, need adjust case beam angle and length, the utility model provides the template that adjusts accordingly.
Compared with prior art, use template of the present utility model to adjust case beam angle and length, reached the purpose of utilizing the prefabricated various angle case beams of orthogonal template, have following beneficial effect: (1) makes case beam-ends crossbeam, cast-in-place section construction of middle cross beam more simple, has improved operating efficiency; (2) the case beam is more direct at pass force crossly, and the integral rigidity of case beam is improved.
Description of drawings
Fig. 1 is the schematic diagram that step (1) is set up the frame of reference.
Fig. 2 is the schematic diagram that step (2) vertically moves the side direction template.
Fig. 3 is that step (3) is adjusted the schematic diagram that end floor beam, middle cross beam side direction template make itself and beam-ends line parallel.
Fig. 4 is case beam-ends crossbeam, middle cross beam angle adjustment template.
Fig. 5 is the schematic diagram of box girder inner formwork length adjustment template when not extending.
Schematic diagram when Fig. 6 is the elongation of box girder inner formwork length adjustment template.
Among the figure, 1-pedestal longitudinal centre line, 2-1-beam-ends line, 2-2-precast beam end line, 3-1-case beam side direction template, 3-2-end floor beam side direction template, 4-locatees directrix, the big keel of 5-case beam side, 6-side form panel, 7-end floor beam, middle cross beam side form ribbed stiffener, 8-adjusts angle leading screw, 9-internal mold ribbed stiffener, 10-adjusts leading screw, 11-box girder inner formwork panel, 12-telescopic joint panel, 13-telescopic joint template ribbed stiffener, the 14-block.
The specific embodiment
Below in conjunction with accompanying drawing the claimed technical scheme of the utility model is done and to be specified.
Dedicated templates described in the utility model is applicable to the broaden preparation method of place's orthogonal-diagonal lattice prefabricated case beam of highway fork.The method comprising the steps of:
(1) as shown in Figure 1, set up coordinate system at precast pedestal, eject pedestal longitudinal centre line 1, eject beam-ends line 2-1 with pedestal longitudinal centre line 1 quadrature, its intersection point is coordinate origin, with the frame of reference of this coordinate system as prefabricated case beam, mark location directrix 4 at case beam side direction template 3-1.
(2) as shown in Figure 2, when case is beam prefabricated, tiltedly put angle by this prefabricated case beam, eject the precast beam end line 2-2 of this case beam by initial point, the case beam side direction template 3-1 that vertically moves both sides makes location directrix 4 align with precast beam end line 2-2, mobile distance equals L * tan α, L be case beam bottom width half, α is tiltedly put angle for design; The side direction template 3-1 of both sides is mobile in the opposite direction respectively, realizes that precast beam end line 2-2 conforms to design.
(3) as shown in Figure 3, adjust end floor beam, middle cross beam side direction template 3-2 is parallel with precast beam end line 2-2.
(4) according to the length of prefabricated case beam, adjust the internal mold collapsing length.For continuous beam, the side direction template of end does not change continuously, and it is just passable that the length of beam needs only mobile bulkhead.But the section of designing requirement case beam-ends head variable cross-section reinforcement can not change, and changing beam length must adjust joint at internal mold mid portion plus-minus, and solution is the telescopic joint of an activity of internal mold design.
(5) press precast beam end line 2-2 bulkhead is installed, it is beam prefabricated to finish this case.
The dedicated templates that is applicable to said method that the utility model provides comprises case beam angle adjustment template and box girder inner formwork length adjustment template,
As shown in Figure 4, described case beam-ends crossbeam, middle cross beam angle adjustment template, be used for step (3), adjust end floor beam, middle cross beam side direction template 3-2 is parallel with precast beam end line 2-2, comprise the big keel 5 of case beam side, side form panel 6, end floor beam, middle cross beam side form ribbed stiffener 7 and adjust angle leading screw 8, the big keel of case beam side 5 and end floor beam, middle cross beam side form ribbed stiffener 7 surperficial fixation side die face plates 6, the two ends of adjusting angle leading screw 8 are hinged with the big keel 5 of case beam side and end floor beam, middle cross beam side form ribbed stiffener 7 respectively.
At the side form connecting portion of case beam side and end floor beam, middle cross beam, cancellation template ribbed stiffener utilizes the pliability of panel 6 steel plates to form the hinge knot, and type of attachment reaches the purpose of adjusting angle with leading screw by the original fixed hinge knot that changes into.
Shown in Fig. 5,6, described box girder inner formwork length adjustment template, be used for step (4), comprise internal mold ribbed stiffener 9, adjust leading screw 10, box girder inner formwork panel 11 and telescopic joint panel 12, box girder inner formwork panel 11 bottoms arrange internal mold ribbed stiffener 9, two box girder inner formwork panel 11 connects by the adjustment leading screw 10 that is arranged on the internal mold ribbed stiffener 9, and telescopic joint panel 12 places the outer surface of two box girder inner formwork panels 11.
Specific practice is: at the internal mold merogenesis place that case beam section does not change, the internal mold of two 300mm is than other 5mm that occupies a narrow space, make the long telescopic joint panel 12 of a 600mm again and be stacked in box girder inner formwork panel 11 outsides, telescopic joint panel 12 bottom supports have telescopic joint template ribbed stiffener 13, telescopic joint template ribbed stiffener 13 be arranged at two adjacent internal mold ribbed stiffeners 9 the centre and with adjust leading screw 10 sockets, in telescopic joint template ribbed stiffener 13 both sides the block of fixing with adjustment leading screw 10 14 is set, guarantees that the flexible distance at two ends equates.The box girder inner formwork plate is overlapping (Fig. 5) when not lengthening, and during lengthening lap is trailed (Fig. 6), equates in order to guarantee extension, increases at the keel of putting more energy into and adjusts leading screw 10.
Claims (2)
1. a highway fork broadens and locates orthogonal-diagonal lattice prefabricated case beam dedicated templates, it is characterized in that: comprise case beam-ends crossbeam, middle cross beam angle adjustment template and box girder inner formwork length adjustment template,
Described case beam-ends crossbeam, middle cross beam angle adjustment template, comprise the big keel of case beam side (5), side form panel (6), end floor beam, middle cross beam side form ribbed stiffener (7) and adjust angle leading screw (8), the big keel of case beam side (5) and end floor beam, middle cross beam side form ribbed stiffener (7) surperficial fixation side die face plate (6), the two ends of adjusting angle leading screw (8) are hinged with the big keel of case beam side (5) and end floor beam, middle cross beam side form ribbed stiffener (7) respectively;
Described box girder inner formwork length adjustment template, comprise internal mold ribbed stiffener (9), adjust leading screw (10), box girder inner formwork panel (11) and telescopic joint panel (12), box girder inner formwork panel (11) bottom arranges internal mold ribbed stiffener (9), two box girder inner formwork panel (11) connects by the adjustment leading screw (10) that is arranged on the internal mold ribbed stiffener (9), and telescopic joint panel (12) places the outer surface of two box girder inner formwork panels (11).
2. dedicated templates according to claim 1, it is characterized in that: telescopic joint panel (12) bottom support has telescopic joint template ribbed stiffener (13), telescopic joint template ribbed stiffener (13) be arranged at two adjacent internal mold ribbed stiffeners (9) the centre and with adjust leading screw (10) socket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320218944 CN203171794U (en) | 2013-04-26 | 2013-04-26 | Special template for orthogonal diagonal prefabricated box beams at broadening positions of forks of expressways |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320218944 CN203171794U (en) | 2013-04-26 | 2013-04-26 | Special template for orthogonal diagonal prefabricated box beams at broadening positions of forks of expressways |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203171794U true CN203171794U (en) | 2013-09-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320218944 Expired - Fee Related CN203171794U (en) | 2013-04-26 | 2013-04-26 | Special template for orthogonal diagonal prefabricated box beams at broadening positions of forks of expressways |
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|---|---|
| CN (1) | CN203171794U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105563624A (en) * | 2015-12-23 | 2016-05-11 | 上海建工材料工程有限公司 | Box-type inner mold of concrete bridge panel mold |
| CN107740349A (en) * | 2017-11-03 | 2018-02-27 | 中交路桥华南工程有限公司 | The template combination structure of adjustable chamfering |
-
2013
- 2013-04-26 CN CN 201320218944 patent/CN203171794U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105563624A (en) * | 2015-12-23 | 2016-05-11 | 上海建工材料工程有限公司 | Box-type inner mold of concrete bridge panel mold |
| CN105563624B (en) * | 2015-12-23 | 2018-01-02 | 上海建工材料工程有限公司 | A kind of box internal model in concrete-bridge panel mold |
| CN107740349A (en) * | 2017-11-03 | 2018-02-27 | 中交路桥华南工程有限公司 | The template combination structure of adjustable chamfering |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130904 Termination date: 20170426 |