CN205152772U - Integral reinforced concrete box beam bridge of prestressing force assembly and production mould thereof - Google Patents
Integral reinforced concrete box beam bridge of prestressing force assembly and production mould thereof Download PDFInfo
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- CN205152772U CN205152772U CN201520950292.5U CN201520950292U CN205152772U CN 205152772 U CN205152772 U CN 205152772U CN 201520950292 U CN201520950292 U CN 201520950292U CN 205152772 U CN205152772 U CN 205152772U
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Abstract
The utility model mainly discloses an integral reinforced concrete box beam bridge of prestressing force assembly, including a plurality of assembled rectangular element festivals, each assembled rectangular element festival is including channel -section steel type precast reinforced concrete slab and/or I shape, precast reinforced concrete is dull and stereotyped, the concatenation of two channel -section steel type precast reinforced concrete slab symmetries or they are made up the combination of perhaps mutually supporting with other precast reinforced concrete slab respectively and are formed the single channel or control twin -channel integral unit and save the skeleton, each precast reinforced concrete slab's bottom plate downside has along its length direction's prestressing steel, it forms the integral unit festival to pour reinforced concrete superposed layer behind the roof of skeleton and the posttension prestressing steel that the logical length of edge width direction was all laid to the bottom plate upside, each integral unit festival is arranged in proper order with the rectangular port butt joint and is formed the box beam bridge. Each board all transports the preparation installation of pouring reinforced concrete superposed layer after extremely splice according to the technological requirement at the scene and accomplishing the whole unit festival in prefabricated back in the mill in batches. The greatly reduced cost with shorten on -the -spot construction cycle.
Description
Technical field
The utility model relates to a kind of steel bar concrete Box-girder Bridges, is specifically related to a kind of prestressing force assembled integral steel bar concrete Box-girder Bridges and production mould thereof.
Background technology
Prestressed reinforced concrete case beam is due to rational in infrastructure, and rigidity is large, is widely used in Longspan Bridge, but its difficulty of construction is larger, as adopted cast-in-place construction, then long in time limit, construction cost is high, as integral prefabricated in adopted, though can the reduction of erection time, because one across the prefabricated case beam of 40 meters, it be from focusing on more than 200 tons, transporting and hoisting requires very strict, and the cost of its Prefabrication is not cheap yet simultaneously.So in order to save the cost of prestressed reinforced concrete case beam, improve its range of application, the prestressing force assembled integral Box-girder Bridges of development of new has important economic benefit and social benefit.
Utility model content
The purpose of this utility model waters the monolithic reinforced concrete Box-girder Bridges of steel bar concrete overlapping layers after being to provide a kind of site assembly precast framework, ensureing the prerequisite decline low cost of its globality and safety and shortening the site operation cycle.
The utility model discloses a kind of assembled integral steel bar concrete Box-girder Bridges, comprise some assembling rectangular elements joint, each assembling rectangular element joint is at least spliced to form skeleton by two blocks of channel steel type prefabricated reinforced concrete plates with open side symmetry, the baseplate underside of channel steel type prefabricated reinforced concrete plate has prestressed reinforcement along its length, all lay post-tensioned prestressed reinforcement after-pouring steel bar concrete overlapping layers formation integrated units joint elongated in the width direction on the upside of the top board of skeleton and base plate, each integrated units joint arranges formation Box-girder Bridges successively with rectangular port docking.
Described channel steel type prefabricated reinforced concrete plate is the close rib sandwiched concrete slab integral part surrounded by top board, base plate and wall, it is the cross rib groove of rectangle that its top board and base plate all have perpendicular to wall cross sectional shape, the length direction outer rim of top board and base plate has the splicing edge of a wing overhanging along its bottom surface respectively, the thickness position place of top board and the corresponding wall of base plate is solid precast body, and cross rib groove runs through the through hole that solid precast body height of formation is less than cross rib groove depth.
There is ventilation opening at the middle part of described channel steel type prefabricated reinforced concrete plate wall.
The skeleton of described assembling rectangular element joint also comprises the I-shaped die prefabricated reinforced concrete plate and/or precast reinforced plate concrete that are close rib sandwiched concrete plate; The upper flat plate of I-shaped die prefabricated reinforced concrete plate and lower flat board there is the rib groove perpendicular to its riser, the thickness position place of upper flat plate and the corresponding riser of lower flat board is solid precast body, the width centerline of precast reinforced plate concrete is solid precast body, and the both sides of solid precast body are rib groove parallel in the width direction; Rib groove on I-shaped die prefabricated reinforced concrete plate and precast reinforced plate concrete two plate runs through the through hole that solid precast body height of formation is less than rib groove depth; On I-shaped die prefabricated reinforced concrete plate and precast reinforced plate concrete, the shape of rib groove, position and quantity are corresponding with the cross rib groove on described channel steel type prefabricated reinforced concrete plate; All there is prestressed reinforcement along its length the lower flat board of I-shaped die prefabricated reinforced concrete plate and the downside of precast reinforced plate concrete, and there is the splicing edge of a wing overhanging along bottom surface the length direction both sides of I-shaped die prefabricated reinforced concrete plate and precast reinforced plate concrete; The respective side panels that the respective intermediate plate that I-shaped die prefabricated reinforced concrete plate saves as prefabricated unit, described channel steel type prefabricated reinforced concrete plate save as prefabricated unit, prefabricated reinforced concrete flat plate splicing form the prefabricated unit joint skeleton that section is many casees room between I-shaped die prefabricated reinforced concrete plate and channel steel type prefabricated reinforced concrete plate.
The top board of described channel steel type prefabricated reinforced concrete plate, the upper flat plate of I-shaped die prefabricated reinforced concrete plate and the solid precast body place of precast reinforced plate concrete are provided with the connecting reinforcement up stretched out.
Be equipped with in rib groove on the cross rib groove of described channel steel type prefabricated reinforced concrete plate, I-shaped die prefabricated reinforced concrete plate and precast reinforced plate concrete along the elongated post-tensioned prestressed reinforcement of prefabricated unit joint skeleton width.
The invention also discloses a kind of mould for the production of above-mentioned prestressing force prefabricated reinforced concrete plate.
The utility model is by all first prefabricated in workshop for each prestressed reinforced concrete plate of assembling Box-girder Bridges unit joint skeleton, be transported to on-the-spot after carry out corresponding construction reinforced concrete slab according to the assembling process made lifting complete the splicing of corresponding Box-girder Bridges unit joint skeleton, carry out pouring reinforcement concrete overlapping layers PROCESS FOR TREATMENT after then arranging corresponding post-tensioned prestressed reinforcement according to predetermined construction technology in the rib groove of Box-girder Bridges unit joint top board and base plate.Until after water steel bar concrete overlapping layers integrated units of Box-girder Bridges after curing time and saved fabrication and installation.Workshop batch is prefabricated can reduce cost greatly, and on-site consolidation skeleton waters overall overlapping layers treatment process after coordinating shortens the site operation cycle greatly.
Prestressed reinforcement is all laid, to ensure their carrying force in the downside of the channel steel type of assembly box-shaped beam bridge unit joint skeleton and the baseplate underside of I-shaped die prefabricated reinforced concrete plate, precast reinforced plate concrete when prefabricated.All reserved corresponding cross rib groove on channel steel type and I-shaped die prefabricated reinforced concrete plate top board and base plate, the end face of precast prestressed R. C. ptates is also reserved with corresponding rib groove, post-tensioned prestressed reinforcement is elongatedly layed in rib groove along the width of unit joint skeleton, like this after water steel bar concrete overlapping layers time rib groove place all form through horizontal girt strip.Also reinforcing bar is laid in the longitudinal spliced seam of skeleton.By after the steel bar concrete of horizontal girt strip, longitudinal seam and coincidence surface plate that waters the skeleton that Box-girder Bridges prefabricated unit saves is connected to form good integrity, integral unit joint that bearing capacity is large.
The channel steel type of splicing Box-girder Bridges unit joint skeleton, I-shaped die and precast reinforced plate concrete all adopt close ribbed sandwich panel, while each precast plate globality of guarantee and bearing capacity, alleviate deadweight, save make and transport, handling cost.
In order to avoid Box-girder Bridges unit joint skeleton and after water the phenomenon occurring between overlapping layers ftractureing, the top board of each precast plate is furnished with the connecting reinforcement up stretched out.
Accompanying drawing explanation
Fig. 1 is the cross-sectional structure schematic diagram of the utility model embodiment one.
Fig. 2 is the schematic top plan view of watering overlapping layers after Fig. 1 removes.
Fig. 3 is the stereochemical structure enlarged diagram of channel steel type prefabricated reinforced concrete plate in Fig. 1.
Fig. 4 is the structural representation of the utility model embodiment two.
Fig. 5 is the stereochemical structure enlarged diagram of I-shaped die prefabricated reinforced concrete plate in Fig. 4.
Detailed description of the invention
Embodiment one, as shown in Figure 1 to Figure 3, present embodiment discloses a kind of single pass assembled integral steel bar concrete Box-girder Bridges, saved by the rectangular element of some assembled integrals and be spliced, each rectangular element joint skeleton is arranged with opening relative symmetry by two blocks of channel steel type prefabricated reinforced concrete plates 1, splices one block of prefabricated reinforced concrete plate dull and stereotyped 2 respectively and formed between top board and base plate.
Channel steel type prefabricated reinforced concrete plate 1 and prefabricated reinforced concrete plate flat board 2 are prestressing force precast rib filled board, and filler is light filling block.The baseplate underside of channel steel type prefabricated reinforced concrete plate 1 and the downside of prefabricated reinforced concrete plate flat board 2 are all equipped with prestressed reinforcement 3 along its length when prefabricated.
It is the cross rib groove 11 of rectangle that the top board of channel steel type prefabricated reinforced concrete plate 1 and base plate all have perpendicular to wall cross sectional shape, the length direction outer rim of top board and base plate has the splicing edge of a wing 12 overhanging along its bottom surface respectively, the thickness position place of top board and the corresponding wall of base plate is solid precast body, and cross rib groove 11 runs through the through hole 13 that solid precast body height of formation is less than cross rib groove depth.There is the connecting reinforcement 14 up stretched out at solid precast body place on top board.As required ventilation opening can be set at the middle part of channel steel type prefabricated reinforced concrete plate wall.
Prefabricated reinforced concrete plate flat board 2 has the rib groove 21 along its width, cross sectional shape, the position of rib groove are corresponding with the cross rib groove on channel steel type prefabricated reinforced concrete plate 1 with quantity.
After channel steel type prefabricated reinforced concrete plate and prefabricated reinforced concrete plate flat board are spliced to form rectangular element joint skeleton by on-site hoisting, longitudinal reinforcement 4 is laid in splicing seams, lay along the elongated post-tensioned prestressed reinforcement 5 of unit joint skeleton width in rib groove on cross rib groove on channel steel type prefabricated reinforced concrete plate and prefabricated reinforced concrete plate flat board, then the technique that instrument is predetermined is pouring reinforcement concrete overlapping layers 6 on the upside of the top board and base plate of skeleton, has saved fabrication and installation until steel bar concrete overlapping layers integrated units of Box-girder Bridges after curing time.
Embodiment two, present embodiment discloses a kind of assembled integral steel bar concrete Box-girder Bridges of two passages, as shown in Figure 4, the difference of the present embodiment and embodiment one is to add I-shaped die prefabricated reinforced concrete plate 7 as intermediate plate, and its both sides splice precast reinforced plate concrete 2 and channel steel type prefabricated reinforced concrete plate 1 respectively successively.The structure of I-shaped die prefabricated reinforced concrete plate 7 as shown in Figure 5, its upper flat plate is similar to the structure of channel steel type prefabricated reinforced concrete plate with the structure of lower flat board, and shape, the position of upper flat plate and rib groove on lower flat board are corresponding with the cross rib groove of channel steel type prefabricated reinforced concrete plate with quantity.Other structure of the present embodiment and construction technology lead to embodiment one.
The invention also discloses a kind of mould for prefabricated above-mentioned prefabricated reinforced concrete plate, this mould comprises external mold and internal mold, and external mold and internal mold all adopt three block structures, and are provided with charging aperture, is connected as a whole with positioner by external mold with internal mold.Make precast plate shaping with vibration principle, a hydraulic climbing mechanism is set in shaking platform so that mold integral is not pressed on shaking platform in assembling and dissembling process.Stretching bed tool is used when laying prestressed reinforcement.
During die assembly, first the hydraulic climbing mechanism in shaking platform is risen, then external mold is placed in the hydraulic climbing mechanism risen, surrounding utilizes hydraulic quick coupler to be connected with hydraulic means by external mold, then utilize Hydraulic Station that each position of external mold is headed into permanent position, recycling carves block or latch makes each position of external mold in place.Start to assemble internal mold after cage of reinforcement, light filling block, hole for hoist steel pipe etc. are assembled: internal mold is hung in external mold, utilize locating piece to make it locate, then connecting fluid pressure device, make each position of internal mold in place.Last hydraulic control lifting body return, makes whole mould fall within shaking platform, and what start prefabrication builds shaping work.After shaping, workpiece by mould jacking, then is pulled out shaking platform position together with mould with interpreter by hydraulic control lifting body, and dislocation is in a permanent position so that steam curing and form removal.
Claims (7)
1. a prestressing force assembled integral steel bar concrete Box-girder Bridges, it is characterized in that: it comprises some assembling rectangular elements joint, each assembling rectangular element joint is at least spliced to form skeleton by two blocks of channel steel type prefabricated reinforced concrete plates with open side symmetry, the baseplate underside of channel steel type prefabricated reinforced concrete plate has prestressed reinforcement along its length, all lay post-tensioned prestressed reinforcement after-pouring steel bar concrete overlapping layers formation integrated units joint elongated in the width direction on the upside of the top board of skeleton and base plate, each integrated units joint arranges formation Box-girder Bridges successively with rectangular port docking.
2. prestressing force assembled integral steel bar concrete Box-girder Bridges as claimed in claim 1, it is characterized in that: described channel steel type prefabricated reinforced concrete plate is the close rib sandwiched concrete slab integral part surrounded by top board, base plate and wall, it is the cross rib groove of rectangle that its top board and base plate all have perpendicular to wall cross sectional shape, the length direction outer rim of top board and base plate has the splicing edge of a wing overhanging along its bottom surface respectively, the thickness position place of top board and the corresponding wall of base plate is solid precast body, and cross rib groove runs through the through hole that solid precast body height of formation is less than cross rib groove depth.
3. prestressing force assembled integral steel bar concrete Box-girder Bridges as claimed in claim 2, is characterized in that: there is ventilation opening at the middle part of described channel steel type prefabricated reinforced concrete plate wall.
4. prestressing force assembled integral steel bar concrete Box-girder Bridges as claimed in claim 2, is characterized in that: the skeleton of described assembling rectangular element joint also comprises the I-shaped die prefabricated reinforced concrete plate and/or precast reinforced plate concrete that are close rib sandwiched concrete plate; The upper flat plate of I-shaped die prefabricated reinforced concrete plate and lower flat board there is the rib groove perpendicular to its riser, the thickness position place of upper flat plate and the corresponding riser of lower flat board is solid precast body, the width centerline of precast reinforced plate concrete is solid precast body, and the both sides of solid precast body are rib groove parallel in the width direction; Rib groove on I-shaped die prefabricated reinforced concrete plate and precast reinforced plate concrete two plate runs through the through hole that solid precast body height of formation is less than rib groove depth;
On I-shaped die prefabricated reinforced concrete plate and precast reinforced plate concrete, the shape of rib groove, position and quantity are corresponding with the cross rib groove on described channel steel type prefabricated reinforced concrete plate; All there is prestressed reinforcement along its length the lower flat board of I-shaped die prefabricated reinforced concrete plate and the downside of precast reinforced plate concrete; There is the splicing edge of a wing overhanging along bottom surface the length direction both sides of I-shaped die prefabricated reinforced concrete plate and precast reinforced plate concrete;
The respective side panels that the respective intermediate plate that I-shaped die prefabricated reinforced concrete plate saves as prefabricated unit, described channel steel type prefabricated reinforced concrete plate save as prefabricated unit, prefabricated reinforced concrete flat plate splicing form the prefabricated unit joint skeleton that section is many casees room between I-shaped die prefabricated reinforced concrete plate and channel steel type prefabricated reinforced concrete plate.
5. prestressing force assembled integral steel bar concrete Box-girder Bridges as claimed in claim 4, is characterized in that: the top board of described channel steel type prefabricated reinforced concrete plate, the upper flat plate of I-shaped die prefabricated reinforced concrete plate and the solid precast body place of precast reinforced plate concrete are provided with the connecting reinforcement up stretched out.
6. prestressing force assembled integral steel bar concrete Box-girder Bridges as claimed in claim 5, is characterized in that: be equipped with along the elongated post-tensioned prestressed reinforcement of prefabricated unit joint skeleton width in the rib groove on the cross rib groove of described channel steel type prefabricated reinforced concrete plate, I-shaped die prefabricated reinforced concrete plate and precast reinforced plate concrete.
7. a mould, for the production of precast prestressed reinforced concrete slab, is characterized in that: described precast prestressed reinforced concrete slab is the prefabricated reinforced concrete plate of the assembled integral steel bar concrete Box-girder Bridges in claim 1-6 described in any one.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520950292.5U CN205152772U (en) | 2015-11-25 | 2015-11-25 | Integral reinforced concrete box beam bridge of prestressing force assembly and production mould thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520950292.5U CN205152772U (en) | 2015-11-25 | 2015-11-25 | Integral reinforced concrete box beam bridge of prestressing force assembly and production mould thereof |
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| CN205152772U true CN205152772U (en) | 2016-04-13 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107858940A (en) * | 2017-12-22 | 2018-03-30 | 张曙光 | A kind of bridge inspection and maintenance device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107858940A (en) * | 2017-12-22 | 2018-03-30 | 张曙光 | A kind of bridge inspection and maintenance device |
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Effective date of registration: 20170424 Address after: West Industrial Park in Hunan province 410217 Changsha Double Road No. 1 Co-patentee after: Hunan Dongfanghong residential industry Co., Ltd. Patentee after: Hunan Dongfanghong Construction Group Co., Ltd. Address before: West Industrial Park in Hunan province 410217 Changsha Double Road No. 1 Patentee before: Hunan Dongfanghong Construction Group Co., Ltd. |