CN103510466A - Wet joint construction method of T-shaped beam bridge floor system - Google Patents
Wet joint construction method of T-shaped beam bridge floor system Download PDFInfo
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- CN103510466A CN103510466A CN201310472261.9A CN201310472261A CN103510466A CN 103510466 A CN103510466 A CN 103510466A CN 201310472261 A CN201310472261 A CN 201310472261A CN 103510466 A CN103510466 A CN 103510466A
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Abstract
The invention discloses a wet joint construction method of a T-shaped beam bridge floor system. The wet joint construction method is used for solving the problems that a formwork erection device is easily damaged, formworks are removed with difficulty, and the reusing rate of the formworks is low in the formwork erection process for bridge floor wet joint in traditional erection of a double-line T-shaped beam bridge. The T-shaped beam bridge comprises a left T-shaped beam (1) and a right T-shaped beam (2), a thin steel formwork (4) is provided with two rows of preformed holes, threads are formed at the tail ends of lifting hooks (5), the tail end of each lifting hook (5) penetrates through the corresponding preformed hole and then is in thread connection with a nut (8), head hooks of the lifting hooks (5) penetrating through the left row of preformed holes (3) are hung on the right ends (6) of embedded bars of the left T-shaped beam, and head hooks of the lifting hooks (5) penetrating through the right row of preformed holes are hung on the left ends (7) of embedded bars of the right T-shaped beam. According to the formwork erection device in the wet joint construction method, a supporting frame is not arranged on the bridge floor, the damage caused by vehicle rolling is avoided, the reused rate of the template is high, and construction efficiency is improved.
Description
Technical field
The present invention relates to a kind of method of the wet seam of bridge floor being carried out pouring construction in two-wire tee girder sets up.
Background technology
When setting up tee girder bridge, after two-wire tee girder has set up, on bridge floor, can form 3 wet seams, the in the situation that of normal line spacing, every wet seam generally has 30 centimetres wide, and more than 30 meter long, construction process requirement will carry out reinforced concrete to wet seam builds, to complete the civil engineering of bridge floor.Before building wet seam, to carry out formwork erection to wet seam, then just can carry out cement builds, existing formwork way is to adopt to hang modular form and punching to the structure of drawing, namely template adopts wooden form or bamboo offset plate, utilize No. 12 fining twisted steels as to pull bar, pull bar is through in pvc pipe, one steel pipe or a lumps of wood are set between two tee girders of bridge floor as the stressed support of template, by clamp nut, wooden form sling and be fastened on wet seam below, and every 3 meters, an auxiliary form removal hole is being set along bridge longitudinal direction, the diameter of this hole is 3 centimetres, pre-buried pvc pipe in the wet seam of precast, pull bar is passed from pvc pipe.Because bridge floor ancillary works is too much, comprise the wet seam of T beam bridge floor system, horizontal connecting partition, gear quarrel wall, transverse stretching, slip casting, sealing off and covering anchorage, sidewalk angle bar frame is installed, sidewalk pedestrian andante is installed, cable channel is installed, the a lot of working procedures of shrinkage joint installation etc., on bridge floor, often there is the situation of cross-operation, particularly the heavy-duty vehicle such as Beam transportation vehicle passes through from bridge floor continually, often occur to be erected at the situation of hanging mould steel pipe or lumps of wood press-bending or compressive strain of the wet seam on bridge floor, cause formwork again, and form removal is met difficulty, need be by reserved form removal hole, by instruments such as wooden sticks, through reserving hole, down suppress the demoulding of template ability, meanwhile, reserved form removal hole is easily crammed, also affect engineering attractive in appearance.In addition, when stripping, because wooden form self is heavier, volume is also large, is generally to adopt wooden form directly by rope, to be slowly put on level land, then after picking up by workman, transports to the construction technology of bridge floor, exist workload large, the serious problem with affecting integral construction efficiency of damaged template.
Summary of the invention
The invention provides the wet joint construction method of a kind of tee girder bridge deck, solved easily damaged, form removal is difficult and template recycling rate of waterused is low problem of erecting device that existing two-wire tee girder exists the construction technology of the wet seam of bridge floor in setting up.
The present invention solves above technical problem by the following technical programs:
A kind of tee girder bridge deck seam erecting device that wets, comprise left tee girder and right tee girder, between left tee girder and right tee girder, be provided with wet seam, the right-hand member head of the embedded bar of left tee girder is arranged in wet seam, the left end head of the embedded bar of right tee girder is arranged in wet seam, on thin steel form, be provided with two row's preformed holes, tail end at suspension hook is provided with screw thread, the tail end of suspension hook is screwed together with nut from preformed hole passes, the head crotch of the suspension hook passing from the preformed hole of left bank is articulated on the right-hand member head of embedded bar of left tee girder, the head crotch of the suspension hook passing from right row's preformed hole is articulated on the left end head of embedded bar of right tee girder.
In the every row's preformed hole arranging on thin steel form, the spacing between adjacent preformed hole equates.
The bridge deck joint construction method that wets, comprises the following steps:
The first step, on the thin steel form of the rectangle of 3 millimeters thick, get out two row's preformed holes, the wet seam that thin steel form is formed between left tee girder and right tee girder, be delivered to wet seam below;
Second step, by the tail end of suspension hook from top to bottom the preformed hole from thin steel form through thin steel form, nut is screwed onto to the tail end of suspension hook;
The 3rd step, the head crotch of the suspension hook passing the preformed hole from left bank is articulated on the right-hand member head of embedded bar of left tee girder, the head crotch of the suspension hook passing the preformed hole from right row is articulated on the left end head of embedded bar of right tee girder;
The 4th step, adjust respectively the nut that the afterbody of each suspension hook is spirally connected, make thin steel form parallel with T beam bridge floor and with two T beams go out eaves bottom joint close, complete formwork;
The 5th step, in wet seam concreting;
The 6th step, the steel concrete in being cast in wet seam solidify and reach after technological requirement, with iron hammer, knock the nut being spirally connected on the bottom surface of thin steel form, make the tail break of suspension hook and come off, the thin steel form coming off is not downwards delivered on bridge floor from other carries out the wet seam of formwork, during in order to next formwork, uses.
Erecting device of the present invention does not arrange any steel pipe or wood lump supporting support on bridge floor, the destruction of thoroughly having avoided bridge floor contact haulage vehicle to cause the spreading of erecting device; Template adopts thin steel form to be not easy distortion, and form removal is very easy to operation, workman only need rap hook nut and suspension hook exposed parts with tup below, and suspension hook exposed parts is just tear-away, utilizes a crowbar sled gently, punching block will come off, workman just can be delivered to template on bridge floor along beam seam, and used convenient especially next time, and template Reusability rate is high, improved efficiency of construction, guaranteed that the wet joint concrete of having built is smooth smooth.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is that the present invention is at the structural representation of overlooking in direction.
The specific embodiment
A kind of tee girder bridge deck seam erecting device that wets, comprise left tee girder 1 and right tee girder 2, between left tee girder 1 and right tee girder 2, be provided with wet seam, the right-hand member head 6 of the embedded bar of left tee girder 1 is arranged in wet seam, the left end head 7 of the embedded bar of right tee girder 2 is arranged in wet seam, on thin steel form 4, be provided with two row's preformed holes, tail end at suspension hook 5 is provided with screw thread, the tail end of suspension hook 5 is screwed together with nut 8 from preformed hole passes, the head crotch of the suspension hook 5 passing from the preformed hole 3 of left bank is articulated on the right-hand member head 6 of embedded bar of left tee girder 1, the head crotch of the suspension hook 5 passing from right row's preformed hole is articulated on the left end head 7 of embedded bar of right tee girder 2.
In the every row's preformed hole arranging on thin steel form 4, the spacing between adjacent preformed hole equates.
The wet seam formwork form removal method of beam bridge floor system, comprises the following steps:
The first step, on the thin steel form 4 of the rectangle of 3 millimeters thick, get out two row's preformed holes, the wet seam that thin steel form 4 is formed between left tee girder 1 and right tee girder 2, be delivered to wet seam below;
Second step, by the tail end of suspension hook 5 from top to bottom the preformed hole from thin steel form 4 through thin steel form 4, nut 8 is screwed onto to the tail end of suspension hook 5;
The 3rd step, the head crotch of the suspension hook passing the preformed hole from left bank 35 is articulated on the right-hand member head 6 of embedded bar of left tee girder 1, the head crotch of the suspension hook passing the preformed hole from right row 5 is articulated on the left end head 7 of embedded bar of right tee girder 2;
The 4th step, adjust respectively the nut 8 that the afterbody of each suspension hook 5 is spirally connected, make thin steel form 4 parallel with T beam bridge floor and with two T beams go out eaves bottom joint close, complete formwork;
The 5th step, in wet seam concreting;
The 6th step, the steel concrete in being cast in wet seam solidify and reach after technological requirement, with iron hammer, knock the nut 8 being spirally connected on the bottom surface of thin steel form 4, make the tail break of suspension hook 5 and come off, the thin steel form 4 coming off is not downwards delivered on bridge floor from other carries out the wet seam of formwork, during in order to next formwork, uses.
The tightness degree of template depends on the suspension hook 5 fastening degree of nut 8 below, and this formwork way makes wet joint template and beam body wing plate concrete closely by pasting to a great extent, does not occur spillage and pitted skin phenomenon.
Claims (1)
1. the wet joint construction method of tee girder bridge deck, comprises the following steps:
The first step, on the thin steel form (4) of the rectangle of 3 millimeters thick, get out two row's preformed holes, the wet seam that thin steel form (4) is formed between left tee girder (1) and right tee girder (2), be delivered to wet seam below;
Second step, by the tail end of suspension hook (5) from top to bottom the preformed hole from thin steel form (4) through thin steel form (4), nut (8) is screwed onto to the tail end of suspension hook (5);
The 3rd step, the right-hand member head (6) of embedded bar that the head crotch of the suspension hook (5) passing the preformed hole from left bank (3) is articulated in to left tee girder (1) are upper, the head crotch of the suspension hook passing the preformed hole from right row (5) are articulated on the left end head (7) of embedded bar of right tee girder (2);
The 4th step, adjust respectively the nut (8) that the afterbody of each suspension hook (5) is spirally connected, make thin steel form (4) parallel with T beam bridge floor and with two T beams go out eaves bottom joint close, complete formwork;
The 5th step, in wet seam concreting;
The 6th step, the steel concrete in being cast in wet seam solidify and reach after technological requirement, with iron hammer, knock the nut (8) being spirally connected on the bottom surface of thin steel form (4), make the tail break of suspension hook (5) and come off, the thin steel form (4) coming off is not downwards delivered on bridge floor from other carries out the wet seam of formwork, during in order to next formwork, uses.
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103758045A (en) * | 2014-02-20 | 2014-04-30 | 中铁十局集团第三建设有限公司 | Box girder wet joint formwork construction method under space limitation condition |
CN105507156A (en) * | 2015-12-13 | 2016-04-20 | 中铁十九局集团第二工程有限公司 | Mounting method of T-beam bridge decking wet joint formwork |
CN107245933A (en) * | 2017-07-06 | 2017-10-13 | 中建六局土木工程有限公司 | A kind of method for cast-in-situ box girder top plate preformed hole construction |
CN112376400A (en) * | 2020-11-07 | 2021-02-19 | 厦门中亚联合建设工程有限公司 | Wet joint structure of precast concrete beam and construction process thereof |
CN113187227A (en) * | 2021-05-16 | 2021-07-30 | 郑国兴 | Connecting assembly of bridge wet joint construction formwork |
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Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103758045A (en) * | 2014-02-20 | 2014-04-30 | 中铁十局集团第三建设有限公司 | Box girder wet joint formwork construction method under space limitation condition |
CN103758045B (en) * | 2014-02-20 | 2016-06-08 | 中铁十局集团第三建设有限公司 | Box girder wet joint formwork construction method under space limitation condition |
CN105507156A (en) * | 2015-12-13 | 2016-04-20 | 中铁十九局集团第二工程有限公司 | Mounting method of T-beam bridge decking wet joint formwork |
CN107245933A (en) * | 2017-07-06 | 2017-10-13 | 中建六局土木工程有限公司 | A kind of method for cast-in-situ box girder top plate preformed hole construction |
CN112376400A (en) * | 2020-11-07 | 2021-02-19 | 厦门中亚联合建设工程有限公司 | Wet joint structure of precast concrete beam and construction process thereof |
CN113187227A (en) * | 2021-05-16 | 2021-07-30 | 郑国兴 | Connecting assembly of bridge wet joint construction formwork |
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