CN211891342U - Closed steam curing system for prefabricated box girder - Google Patents
Closed steam curing system for prefabricated box girder Download PDFInfo
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- CN211891342U CN211891342U CN202020133997.9U CN202020133997U CN211891342U CN 211891342 U CN211891342 U CN 211891342U CN 202020133997 U CN202020133997 U CN 202020133997U CN 211891342 U CN211891342 U CN 211891342U
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Abstract
The utility model relates to a closed steam curing system for precast box girders, which comprises precast box girders, curing pillars, arc-shaped supporting beams, steam curing beams and steam curing curtain cloth; a box girder buttress is arranged on the beam field foundation, and the prefabricated box girder is arranged on the box girder buttress; the top ends of the transversely opposite maintenance pillars are provided with pillar beams, the bottom ends of the maintenance pillars are respectively provided with pillar bottom plates, and bottom plate rollers are arranged between the pillar bottom plates and the beam field foundation; the upper part of the pillar beam is provided with arc-shaped supporting beams with arc-shaped planes, and rain-proof curtain cloth is arranged between the adjacent arc-shaped supporting beams; two sides of the steam-curing cross beam are respectively provided with a steam-curing inclined strut, and an inclined strut rotating hinge is arranged at the joint of the steam-curing cross beam and the steam-curing inclined strut. The utility model has the advantages that: the utility model discloses can control through crossbeam positioning bolt and positioning cross bolt respectively and evaporate the elevation and the inclination of curing the crossbeam and evaporating the bracing, realize evaporating the effective control in curing the space.
Description
Technical Field
The utility model relates to a closed system of curing by vaporization of prefabricated case roof beam belongs to the bridge engineering field, is applicable to prefabricated case roof beam preparation engineering.
Background
In the bridge engineering construction process, more and more viaducts adopt prefabricated box girders to improve the construction efficiency and protect the construction environment. In the construction process of the prefabricated box girder, the key point of engineering control is how to quickly improve the strength of the box girder concrete and reduce the influence of the external environment on site construction.
There has been slidingtype case roof beam concrete steam curing canopy among the prior art, its characterized in that is including the truss, the truss on install roof and side wall, the barricade is installed to the first half in both ends of truss, the spool is installed to the barricade lower extreme, it has the heat preservation tarpaulin to roll up on the spool, the spool outer end install the drive wheel, install motor and motor control box on the truss, the side wall lower extreme be connected with the heat preservation tarpaulin border of mopping, the pulley is installed to the truss bottom. The box girder workshop is used, so that the operation time can be greatly reduced, the labor intensity is reduced, the steam curing condition control of box girder curing is convenient to carry out, and the box girder concrete quality is favorably ensured. Although the technology can meet the requirement of steam curing of the precast concrete box girder, the steam curing space is difficult to be dynamically controlled, the structural system has poor tightness, and the influence of the external environment on the curing construction cannot be synchronously reduced.
In view of this, in order to improve the preparation construction quality of the precast concrete box girder, the invention of the closed steam curing system for the precast concrete box girder, which can improve the layout efficiency of the steam curing system, improve the tightness of the system, and reduce the influence of the external environment on the curing construction, is urgently needed.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming not enough among the prior art, providing one kind not only can promote laying efficiency of steam curing system, can improve the seal of system moreover, can also reduce the closed system of evaporating of external environment to the prefabricated box girder that the maintenance construction influences.
The closed steam curing system for the prefabricated box girder comprises the prefabricated box girder, a curing support column, an arc-shaped supporting girder, a steam curing cross beam and a steam curing curtain cloth; a box girder buttress is arranged on the beam field foundation, and the prefabricated box girder is arranged on the box girder buttress; the top ends of the transversely opposite maintenance pillars are provided with pillar beams, the bottom ends of the maintenance pillars are respectively provided with pillar bottom plates, and bottom plate rollers are arranged between the pillar bottom plates and the beam field foundation; the upper part of the pillar beam is provided with arc-shaped supporting beams with arc-shaped planes, and rain-proof curtain cloth is arranged between the adjacent arc-shaped supporting beams; two sides of the steam-curing cross beam are respectively provided with a steam-curing inclined strut, and an inclined strut rotating hinge is arranged at the joint of the steam-curing cross beam and the steam-curing inclined strut; a cross beam position adjusting bolt on the upper surface of the steam-curing cross beam is connected with the strut cross beam, and an elastic position control body is arranged between the strut cross beam and the steam-curing cross beam; the maintenance support columns and the support column cross beams are connected with the steam-curing cross beams and the steam-curing inclined struts into a whole; the inclination angle of the steam-curing inclined strut is adjusted through a position-adjusting transverse bolt, the elevation of a steam-curing cross beam is adjusted through a cross beam position-adjusting bolt, and the closed bottom plate is firmly connected with the beam field foundation through a bottom plate compaction bolt; the maintenance steam injection pipe is inserted into a cavity formed by the steam-curing curtain cloth and the prefabricated box girder along the direction parallel to the prefabricated box girder, and external steam supply equipment is communicated with the maintenance steam injection pipe.
Preferably, the method comprises the following steps: the pillar cross beam is formed by rolling steel pipes or section steel and is connected with the rainproof cord fabric in a sticking way or through screws; the rainproof cord fabric is formed by cutting a geomembrane or a rubber sheet.
Preferably, the method comprises the following steps: the steam-curing beam is formed by rolling a steel pipe or profile steel, and the upper surface of the steam-curing beam is vertically welded and connected with the beam position adjusting bolt; the cross beam position adjusting bolt is formed by rolling a screw; the elastic control body is formed by rolling a spring material, and the bottom end of the elastic control body is welded with the steam-curing beam.
Preferably, the method comprises the following steps: the steam-curing inclined strut is formed by rolling a steel pipe or profile steel, a position-adjusting cross bolt is arranged on the side, deviating from the precast box beam, of the side wall of the steam-curing inclined strut, the position-adjusting cross bolt is connected with the steam-curing inclined strut through a position-adjusting bolt rotating hinge, a position-controlling transverse plate is arranged at the bottom end of the steam-curing inclined strut, and a bottom plate compacting bolt is arranged on the position-controlling transverse plate.
Preferably, the method comprises the following steps: the bottom plate compaction bolt is connected with the position control transverse plate through a screw; the steam-cured cross beams and the steam-cured diagonal braces are arranged 2-4 times along the length direction of the precast box girder, and closed steam-cured curtain cloth is arranged between the adjacent steam-cured cross beams and between the adjacent steam-cured diagonal braces; the steam-cured curtain cloth adopts a geomembrane, and a closed bottom plate is arranged at the joint of the bottom end of the steam-cured curtain cloth and the beam yard foundation; the closed bottom plate is a rubber plate and is arranged in a whole length direction along the length direction of the steam-cured curtain cloth.
Preferably, the method comprises the following steps: the maintenance steam injection pipe is a steel pipe or a PVC pipe, one end of the maintenance steam injection pipe is closed, the other end of the maintenance steam injection pipe is communicated with external steam supply equipment, and a steam injection hole is formed in the pipe wall of the maintenance steam injection pipe.
The utility model has the advantages that:
(1) the utility model discloses can control through crossbeam positioning bolt and positioning cross bolt respectively and evaporate the elevation and the inclination of curing the crossbeam and evaporating the bracing, realize evaporating the effective control in curing the space.
(2) The utility model discloses set up accuse position diaphragm in the bottom of evaporating the support diagonal, accessible bottom plate compaction bolt exerts the holding down force to airtight bottom plate, has improved the seal in evaporating the foster space.
(3) The maintenance support column and the support column cross beam can move through the bottom plate roller, so that the difficulty of site displacement is reduced; the upper part of the pillar beam is provided with the arc-shaped supporting beam and the rainproof curtain cloth, so that the influence of the external environment on the maintenance of the prefabricated box beam can be reduced.
Drawings
FIG. 1 is a schematic view of the steam curing construction structure of the precast box girder of the present invention;
FIG. 2 is a schematic view of the arrangement structure of the arc-shaped supporting beam and the rain-proof curtain cloth in FIG. 1;
fig. 3 is a sectional view of the structure of the curing nozzle of fig. 1.
Description of reference numerals: 1-beam field foundation; 2-prefabricating a box girder; 3-box girder buttress; 4-maintaining the supporting column; 5-a post cross beam; 6-pillar base plate; 7-bottom plate rollers; 8-arc supporting beam; 9-rain-proof cord fabric; 10-steam-curing the beam; 11-steam-curing inclined struts; 12-inclined strut rotating hinge; 13-a cross beam positioning bolt; 14-an elastic control body; 15-position-adjusting transverse bolt; 16-bottom plate compression bolts; 17-a closed bottom plate; 18-maintaining the steam injection pipe; 19-steam-curing the cord fabric; 20-turning the positioning bolt; 21-position control transverse plates; 22-water vapor injection holes.
Detailed Description
The present invention will be further described with reference to the following examples. The following description of the embodiments is merely provided to aid in understanding the invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.
Referring to fig. 1 to 3, in the prefabricated box girder closed steam curing system, a box girder buttress 3 is arranged on a beam yard foundation 1, and a prefabricated box girder 2 is arranged on the box girder buttress 3; the top ends of the transversely opposite maintenance pillars 4 are provided with pillar beams 5, the bottom ends of the maintenance pillars 4 are respectively provided with pillar bottom plates 6, and bottom plate rollers 7 are arranged between the pillar bottom plates 6 and the beam field foundation 1; arc-shaped supporting beams 8 with arc-shaped planes are arranged at the upper parts of the pillar cross beams 5, and rain-proof curtain cloth 9 is arranged between the adjacent arc-shaped supporting beams 8; two sides of the steam-curing crossbeam 10 are respectively provided with a steam-curing inclined strut 11, and an inclined strut rotating hinge 12 is arranged at the joint of the steam-curing crossbeam 10 and the steam-curing inclined strut 11; a beam position adjusting bolt 13 on the upper surface of the steam-curing beam 10 is connected with the pillar beam 5, and an elastic position control body 14 is arranged between the pillar beam 5 and the steam-curing beam 10; and inserting the steam curing spray pipe 18 into a cavity formed by the steam curing curtain cloth 19 and the prefabricated box girder 2 along the direction parallel to the prefabricated box girder 2, communicating external steam supply equipment with the steam curing spray pipe 18, and performing steam curing on the prefabricated box girder 2.
The beam field foundation 1 is cohesive soil in a hard plastic state.
The prefabricated box girder 2 is prefabricated by adopting reinforced concrete materials, and the concrete strength grade is C50, the length is 8m, the height is 1.5m, and the width is 24 m.
The steam injection holes 22 have a diameter of 10 mm.
The bottom plate roller 7 adopts a universal rotating wheel with the diameter of 10 cm.
The position-adjusting cross bolt 15 is composed of a screw rod with the diameter of 60mm and a bolt, and the fastening directions of the screw rods on the two sides of the bolt are opposite; the positioning bolt rotary hinge 20 adopts a spherical hinge with the diameter of 60 mm.
The maintenance pillars 4 and the pillar beams 5 are each rolled from H-shaped steel having a gauge of 100 × 100 × 6 × 8.
The post cross beam 5 is connected with the rainproof cord fabric 9 in a sticking way, and the rainproof cord fabric 9 is made of a geomembrane with the thickness of 1 mm.
The pillar base plate 6 is formed by rolling a steel plate with the thickness of 10 mm.
The arc-shaped supporting beam 8, the steam-cured cross beam 10 and the steam-cured inclined strut 11 are all formed by rolling steel pipes with the diameter of 100 mm.
The beam position adjusting bolt 13 is formed by rolling a screw rod with the diameter of 30 mm.
A position control transverse plate 21 is arranged at the bottom end of the steam-curing inclined strut 11, and a bottom plate compaction bolt 16 is arranged on the position control transverse plate 21. The position control transverse plate 21 is formed by rolling a steel plate with the thickness of 10mm and is connected with the steam-cured inclined strut 11 in a welding mode.
The inclined strut rotating hinge 12 is a spherical hinge with the diameter of 100 mm.
The elastic control body 14 is formed by rolling a spring material with the diameter of 30cm, and the bottom end of the elastic control body is connected with the steam-curing beam 10 in a welding mode.
The bottom plate compaction bolt 16 is formed by rolling a screw rod with the diameter of 30mm and is connected with the position control transverse plate 21 through a screw.
The maintenance steam-jet pipe 18 is a steel pipe with a diameter of 30mm or a steel pipe with one end closed and the other end communicated with external steam supply equipment, and a steam jet hole 22 is arranged on the pipe wall of the maintenance steam-jet pipe 18.
The steam-cured curtain cloth 19 is made of a geomembrane with the thickness of 1mm, a closed bottom plate 17 is arranged at the joint of the bottom end of the steam-cured curtain cloth and the foundation 1 of the bottom beam, and the closed bottom plate 17 is made of a rubber plate with the thickness of 2mm and is arranged in the length direction of the steam-cured curtain cloth 19.
The elastic control body 14 adopts a spring with the diameter of 20 mm.
Claims (6)
1. The closed steam curing system of prefabricated box girder which characterized in that: comprises a prefabricated box girder (2), a maintenance pillar (4), an arc-shaped supporting beam (8), a steam-cured cross beam (10) and a steam-cured curtain cloth (19); a box girder buttress (3) is arranged on the beam field foundation (1), and the prefabricated box girder (2) is arranged on the box girder buttress (3); the top ends of the transversely opposite maintenance pillars (4) are provided with pillar beams (5), the bottom ends of the maintenance pillars (4) are respectively provided with pillar base plates (6), and base plate rollers (7) are arranged between the pillar base plates (6) and the beam field foundation (1); the upper part of the pillar crossbeam (5) is provided with arc-shaped supporting beams (8) with arc-shaped planes, and rainproof curtain cloth (9) is arranged between the adjacent arc-shaped supporting beams (8); two sides of the steam-curing cross beam (10) are respectively provided with a steam-curing inclined strut (11), and an inclined strut rotating hinge (12) is arranged at the joint of the steam-curing cross beam (10) and the steam-curing inclined strut (11); a beam position adjusting bolt (13) on the upper surface of the steam-curing beam (10) is connected with the pillar beam (5), and an elastic control body (14) is arranged between the pillar beam (5) and the steam-curing beam (10); the maintenance support column (4) and the support column cross beam (5) are connected with the steam-curing cross beam (10) and the steam-curing inclined strut (11) into a whole; the inclination angle of the steam-curing inclined strut (11) is adjusted through a position-adjusting transverse bolt (15), the elevation of the steam-curing cross beam (10) is adjusted through a cross beam position-adjusting bolt (13), and a closed bottom plate (17) is firmly connected with the beam yard foundation (1) through a bottom plate compaction bolt (16); the maintenance steam injection pipe (18) is inserted into a cavity formed by the steam-curing curtain cloth (19) and the prefabricated box girder (2) along the direction parallel to the prefabricated box girder (2), and external steam supply equipment is communicated with the maintenance steam injection pipe (18).
2. The closed steam curing system for the precast box girder according to claim 1, is characterized in that: the pillar crossbeam (5) is formed by rolling steel pipes or section steel and is connected with the rainproof cord fabric (9) in a sticking way or through screws; the rainproof curtain cloth (9) is formed by cutting a geomembrane or a rubber sheet.
3. The closed steam curing system for the precast box girder according to claim 1, is characterized in that: the steam-curing beam (10) is formed by rolling a steel pipe or section steel, and the upper surface of the steam-curing beam is vertically welded and connected with the beam positioning bolt (13); the cross beam position adjusting bolt (13) is formed by rolling a screw rod; the elastic control body (14) is formed by rolling a spring material, and the bottom end of the elastic control body is welded with the steam-curing beam (10).
4. The closed steam curing system for the precast box girder according to claim 1, is characterized in that: steam-cured bracing (11) adopt steel pipe or shaped steel rolling to form, and it sets up position-adjusting cross bolt (15) to deviate from prefabricated box girder (2) side on its lateral wall, and position-adjusting cross bolt (15) are connected through position-adjusting bolt pivot (20) with steam-cured bracing (11), and the bottom of steam-cured bracing (11) sets up accuse position diaphragm (21), sets up bottom plate densification bolt (16) on accuse position diaphragm (21).
5. The closed steam curing system for the precast box girder according to claim 1, is characterized in that: the bottom plate compaction bolt (16) is connected with the position control transverse plate (21) through a screw; the steam-curing cross beams (10) and the steam-curing inclined struts (11) are arranged 2-4 times along the length direction of the precast box beam (2), and closed steam-curing curtain cloth (19) is arranged between every two adjacent steam-curing cross beams (10) and between every two adjacent steam-curing inclined struts (11); the steam-cured curtain cloth (19) adopts a geomembrane, and a closed bottom plate (17) is arranged at the joint of the bottom end of the steam-cured curtain cloth and the beam yard foundation (1); the closed bottom plate (17) is a rubber plate and is arranged in a whole length direction along the length direction of the steam-cured curtain cloth (19).
6. The closed steam curing system for the precast box girder according to claim 1, is characterized in that: the maintenance steam injection pipe (18) is a steel pipe or a PVC pipe, one end of the maintenance steam injection pipe is closed, the other end of the maintenance steam injection pipe is communicated with external steam supply equipment, and a steam injection hole (22) is formed in the pipe wall of the maintenance steam injection pipe (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020133997.9U CN211891342U (en) | 2020-01-20 | 2020-01-20 | Closed steam curing system for prefabricated box girder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020133997.9U CN211891342U (en) | 2020-01-20 | 2020-01-20 | Closed steam curing system for prefabricated box girder |
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| Publication Number | Publication Date |
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| CN211891342U true CN211891342U (en) | 2020-11-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020133997.9U Active CN211891342U (en) | 2020-01-20 | 2020-01-20 | Closed steam curing system for prefabricated box girder |
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| CN (1) | CN211891342U (en) |
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