CN113265946B - Spontaneous heating template that wet seam of bridge can be installed fast - Google Patents
Spontaneous heating template that wet seam of bridge can be installed fast Download PDFInfo
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- CN113265946B CN113265946B CN202110415084.5A CN202110415084A CN113265946B CN 113265946 B CN113265946 B CN 113265946B CN 202110415084 A CN202110415084 A CN 202110415084A CN 113265946 B CN113265946 B CN 113265946B
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- bridge
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/02—Selection of the hardening environment
- C04B40/0263—Hardening promoted by a rise in temperature
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/12—Grating or flooring for bridges; Fastening railway sleepers or tracks to bridges
- E01D19/125—Grating or flooring for bridges
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/20—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater
- H05B3/34—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater flexible, e.g. heating nets or webs
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/20—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater
- H05B3/34—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater flexible, e.g. heating nets or webs
- H05B3/36—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater flexible, e.g. heating nets or webs heating conductor embedded in insulating material
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/20—Concrete, stone or stone-like material
- E01D2101/24—Concrete
- E01D2101/26—Concrete reinforced
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Structural Engineering (AREA)
- Ceramic Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The utility model relates to a spontaneous heating template that wet seam of bridge can be installed fast, it includes that many are pre-buried at the screw rod and the spontaneous heating template of two current bridge bottom surfaces, spontaneous heating template top surface with the laminating of current bridge bottom surface, spontaneous heating template includes the top surface steel sheet, the top surface steel sheet with the laminating of current bridge bottom surface, top surface steel sheet bottom surface has set firmly the piece that generates heat, the piece that generates heat is connected with external power source, the piece bottom surface that generates heat covers there is insulation material, the insulation material bottom surface is provided with the bottom surface steel sheet, the screw rod bottom is passed spontaneous heating template to use the nut will spontaneous heating template is fixed. This application has the installation effectiveness that has improved wet seam template and has improved wet seam template turnover efficiency's effect.
Description
Technical Field
The application relates to the field of wet joint templates, in particular to a self-heating template capable of being rapidly installed on a wet joint of a bridge.
Background
The wet joint is a joint formed by prefabricating a prestressed concrete beam body in blocks, splicing cantilevers into a long-span continuous beam and connecting the beam blocks into a whole by adopting cast-in-place concrete between two adjacent existing bridges.
At present, the wet joint formwork does not have a fixed and unified construction mode in actual construction, the construction time of the wet joint formwork is usually prolonged, and the construction efficiency is reduced.
In view of the above-mentioned related art, the inventor believes that there is a drawback in that the wet joint formwork construction efficiency is low.
Disclosure of Invention
In order to improve the efficiency of construction of wet joint template, this application provides a spontaneous heating template that wet joint of bridge can install fast.
The application provides a pair of spontaneous heating template that wet seam of bridge can install fast adopts following technical scheme:
the utility model provides a spontaneous heating template that wet seam of bridge can be installed fast, includes that many are pre-buried at the screw rod and the spontaneous heating template of two current bridge bottom surfaces, spontaneous heating template top surface with the laminating of current bridge bottom surface, spontaneous heating template includes the top surface steel sheet, the top surface steel sheet with the laminating of current bridge bottom surface, top surface steel sheet bottom surface has set firmly the piece that generates heat, the piece that generates heat is connected with external power source, the piece bottom surface that generates heat covers there is insulation material, the insulation material bottom surface is provided with the bottom surface steel sheet, the screw rod bottom is passed spontaneous heating template to use the nut will spontaneous heating template is fixed.
By adopting the technical scheme, the screw rods are embedded in the existing bridge, the self-heating templates are installed through the screw rods, the installation efficiency of the wet joint template is improved, the self-heating templates can heat the concrete poured in the wet joints, the time for the concrete poured in the wet joints to reach the design strength is shortened, the turnover efficiency of the wet joint template is improved, the concrete poured in the wet joints can be prevented from being frozen in winter construction, and the quality of concrete engineering is improved.
Optionally, the screw rod is located one end fixedly connected with heat-conducting component in the current bridge, heat-conducting component includes the connecting rod, the connecting rod with the screw rod be in one end fixed connection in the current bridge, the connecting rod perpendicular to the screw rod, just the connecting rod sets up the screw rod is close to the terminal surface setting that two current bridges are close to each other, the connecting rod is kept away from the one end fixedly connected with heat-conducting steel plate of screw rod.
Through adopting above-mentioned technical scheme, the heat that self-heating template produced passes through on screw rod and the connecting rod conduction to the heat conduction steel sheet, and the heat conduction steel sheet is close to the terminal surface setting that two current bridges are close to each other to can toast the heating to the concrete of pouring in the wet seam, further improvement to the heating effect of concrete in the wet seam.
Optionally, the heat-conducting steel plate is located between adjacent main bars in the existing bridge, and the heat-conducting steel plate is not connected with the main bars in the existing bridge.
Through adopting above-mentioned technical scheme, the main muscle in heat conduction steel sheet and the current bridge is not connected to on preventing to conduct the heat conduction to the main muscle of current bridge on the heat conduction steel sheet, reduce calorific loss.
Optionally, the heat conduction steel sheet is located between the adjacent main muscle in the current bridge, just the heat conduction steel sheet with main muscle in the current bridge is connected, and two scribble the heat preservation coating on the terminal surface that current bridge is close to each other.
Through adopting above-mentioned technical scheme, be connected the main muscle in heat conduction steel sheet and the current bridge, make the heat on the heat conduction steel sheet conduct to the concrete that the wet joint was pour through the main muscle in the current bridge in to brush the heat preservation coating on the terminal surface that two current bridges are close to each other, prevent to conduct to the heat that the concrete that the wet joint was poured gives off, improve the effect to the concrete heating that the wet joint was poured.
Optionally, fixed cover is equipped with the mounting panel on the screw rod, the mounting panel is the rectangular plate, the mounting panel bottom surface with the laminating of current bridge die block top surface sets up.
Through adopting above-mentioned technical scheme, fixed with the screw rod through the mounting panel, replaced traditional mode of fixing the screw rod on current bridge owner muscle, loss when having reduced the screw rod heat transfer.
Optionally, a heat insulation shell is sleeved on the screw rod, and the heat insulation shell is a plastic sleeve.
Through adopting above-mentioned technical scheme, thermal-insulated shell can reduce the heat dissipation on the screw rod, makes most heat conduction on the screw rod to the heat conduction steel sheet.
Optionally, the bottom steel plate is a cuboid shell with an opening on the top surface, and the heat insulation material is attached to the inner wall of the bottom steel plate.
Through adopting above-mentioned technical scheme, the bottom surface steel sheet is top surface open-ended cuboid casing, can improve the heat preservation effect with whole covers all around of the piece that generates heat.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the screw rods are pre-buried in the existing bridge, and the self-heating templates are installed through the screw rods, so that the installation efficiency of the wet joint template is improved, the self-heating templates can heat the concrete poured in the wet joint, the time for the concrete poured in the wet joint to reach the design strength is shortened, the turnover efficiency of the wet joint template is improved, the concrete poured in the wet joint can be prevented from being frozen in winter construction, and the quality of concrete engineering is improved;
2. the heat generated by the self-heating template is transmitted to the heat-conducting steel plates through the screw rods and the connecting rods, and the heat-conducting steel plates are arranged close to the mutually close end faces of the two existing bridges, so that the concrete poured in the wet joint can be baked and heated, and the heating effect on the concrete in the wet joint is further improved;
3. the heat-conducting steel plate is connected with the main ribs in the existing bridge, so that heat on the heat-conducting steel plate is conducted to the concrete poured with the wet joint through the main ribs in the existing bridge, the heat-insulating coating is coated on the end surfaces, close to each other, of the two existing bridges, heat conducted to the concrete poured with the wet joint is prevented from being dissipated, and the effect of heating the concrete poured with the wet joint is improved.
Drawings
Fig. 1 is a schematic perspective view of embodiment 1 of the present application.
Fig. 2 is a schematic view of an internal structure of a conventional bridge in embodiment 2 of the present application.
Fig. 3 is a schematic structural view of the screw and the heat conducting element in embodiment 2 of the present application.
FIG. 4 is a schematic view of an internal structure of a conventional bridge in embodiment 3 of the present application
Description of reference numerals: 1. an existing bridge; 11. heat-insulating paint; 2. a screw; 21. mounting a plate; 22. a thermally insulating shell; 3. a self-heating template; 31. a top steel plate; 32. a heating sheet; 33. a thermal insulation material; 34. a bottom steel plate; 4. a heat conducting component; 41. a connecting rod; 42. a heat conductive steel plate.
Detailed Description
The present application is described in further detail below with reference to figures 1-4.
Example 1
The embodiment 1 of the application discloses a self-heating template capable of being rapidly installed on a wet joint of a bridge. Referring to fig. 1, a self-heating template for a bridge wet joint to be quickly installed comprises a plurality of screw rods 2 pre-embedded in two existing bridges 1 and a self-heating template 3 fixed by the screw rods 2.
Pre-buried many screw rods 2 in two current bridges 1, many screw rods 2 set up along 1 length direction interval of current bridge, the vertical setting of screw rod 2, and in current bridge 1 was buried to some of screw rod 2, one end extended out current bridge 1 bottom surface, and screw rod 2 buries the one end in current bridge 1 and the main muscle fixed connection in current bridge 1, at the in-process of pouring current bridge 1, prevents that screw rod 2 from taking place the displacement.
The self-heating template 3 is arranged at the position, to be poured with a wet joint, between two existing bridges 1, the self-heating template 3 comprises top steel plates 31, the positions, close to two ends, of the top surfaces of the top steel plates 31 are attached to the bottom surfaces of the two existing bridges 1, heating sheets 32 are fixedly arranged on the bottom surfaces of the top steel plates 31, the heating sheets 32 are connected with an external power supply, the heating sheets 32 can generate heat when being electrified, and the wet joint is baked; the side, far away from the top steel plate 31, of the heating sheet 32 is covered with the heat insulation material 33, the heat insulation material 33 can be heat insulation cotton or other materials with heat insulation effects, and the heat insulation material 33 can prevent heat of the heating sheet 32 from volatilizing, so that most of heat of the heating sheet 32 is transferred to the top steel plate 31, and the wet joint is baked; the bottom steel plate 34 is arranged on the side, away from the heating sheet 32, of the heat insulation material 33, the bottom steel plate 34 is a cuboid shell with an unsealed top surface, four sides of the upper opening of the bottom steel plate 34 are fixedly connected with the bottom surface of the top steel plate 31, the heat insulation material 33 is paved on the inner wall of the bottom steel plate 34, the bottom steel plate 34 can protect the heating sheet 32 and the heat insulation material 33, the heating sheet 32 and the heat insulation material 33 are prevented from being damaged, the bottom steel plate 34 can insulate the periphery of the heating sheet 32, and heat loss is further reduced.
A plurality of screw rods 2 are respectively arranged at positions, close to two ends, of the self-heating template 3, the screw rods 2 are evenly arranged at intervals, the positions of the screw rods 2 correspond to the positions of the screw rods 2 one by one, one end, located outside the existing bridge 1, of each screw rod 2 penetrates through the self-heating template 3, and the self-heating template 3 is fixed through nuts.
The application embodiment 1 discloses a self-heating template that wet seam of bridge can be installed fast, and the implementation principle is: the screws 2 are respectively embedded in the two existing bridges 1, the holes of the screws 2 corresponding to the screws 2 are formed in the self-heating templates 3, the screws 2 penetrate through the holes of the screws 2, and the self-heating templates 3 are fixed by nuts, so that the self-heating templates can be quickly installed, and the installation efficiency of the wet joint template is improved; in addition, the heating sheet 32 is connected with an external power supply, so that the self-heating template 3 can bake the concrete poured in the wet joint, the time for the wet joint to reach the design strength is prolonged, the turnover efficiency of the wet joint template is improved, and the concrete poured in the wet joint is baked and heated during winter construction, so that the concrete can be prevented from being frozen, and the quality of concrete engineering is improved.
Example 2
The embodiment 2 of the present application is different from the embodiment 1 in that: referring to fig. 2 and 3, one end fixedly connected with heat conduction assembly 4 that many screws 2 are located in current bridge 1, heat conduction assembly 4 includes connecting rod 41, connecting rod 41 is the metal pole, the one end and screw 2 fixed connection of connecting rod 41, connecting rod 41 and screw 2 mutually perpendicular, and the one end that connecting rod 41 kept away from screw 2 is close to the terminal surface setting that two current bridges 1 are close to each other, the one end of keeping away from screw 2 at connecting rod 41 has set firmly heat conduction steel sheet 42, heat conduction steel sheet 42 is the rectangle steel sheet, heat conduction steel sheet 42 sets up between two adjacent main muscle in current bridge 1, and heat conduction steel sheet 42 is disconnected from two adjacent main muscle, when self-heating template 3 generates heat, the heat can conduct to connecting rod 41 through screw 2, then conduct to heat conduction steel sheet 42 through connecting rod 41, because heat conduction steel sheet 42 sets up towards the terminal surface that two bridges are close to each other, thereby heat conduction steel sheet 42 can toast the both sides of wet seam, thereby can strengthen the effect that self-heating template 3 heated the concrete in the wet seam.
Referring to fig. 2 and 3, further, the screw rod 2 and the connecting rod 41 are sleeved with the heat insulation shell 22, and the heat insulation shell 22 may be a plastic sleeve, so that during the heat transfer process, the heat insulation shell 22 can reduce heat loss, and further heat is conducted to the heat conduction steel plate 42 through the screw rod 2 and the connecting rod 41.
The mounting panel 21 has set firmly on screw rod 2, the mounting panel 21 is the rectangle square slab, the through-hole has been seted up to central point at mounting panel 21, screw rod 2 wears to establish in the through-hole, and with screw rod 2 and mounting panel 21 fixed connection, before two present bridges 1 are pour, make mounting panel 21 and the laminating of 1 die block top surface of present bridge, thereby it is fixed with screw rod 2, the fixed mode of the bar connection in screw rod 2 and the present bridge 1 has been replaced, can prevent on the heat transfer of screw rod 2 to the reinforcing bar in the present bridge 1, thereby the loss among the heat transfer process has been reduced.
The application embodiment 2 discloses a self-heating template that wet seam of bridge can be installed fast, and the implementation principle is: by utilizing the metal material property of the screw rod 2, the heat generated by the self-heating template 3 is transferred to the interior of the existing bridge 1, and the two sides of the wet joint are baked through the heat-conducting steel plate 42, so that the bottom surface and the two sides of the concrete poured in the wet joint can be simultaneously baked and heated by the self-heating template 3, and the baking and heating effects on the concrete poured in the wet joint can be improved.
Example 3
The embodiment 3 of the present application is different from the embodiment 2 in that: referring to fig. 4, the heat conduction steel plate 42 is disposed between two adjacent main bars in the existing bridge 1, and both sides of the heat conduction steel plate 42 are connected to the main bars in the existing bridge 1, and heat conducted to the heat conduction steel plate 42 is conducted to the inside of concrete poured into the wet joint through the main bars in the existing bridge 1, thereby improving the effect of heating the concrete in the wet joint.
Furthermore, the heat insulation coating is coated on the mutually close end faces of the two existing bridges 1, so that heat conducted into concrete poured in the wet joint is prevented from being dissipated, and the effect of heating the concrete in the wet joint is further improved.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (4)
1. The utility model provides a spontaneous heating template that wet seam of bridge can be installed fast which characterized in that: the self-heating template comprises a plurality of screw rods (2) embedded in the bottom surfaces of two existing bridges (1) and a self-heating template (3), wherein the top surface of the self-heating template (3) is attached to the bottom surface of the existing bridge (1), the self-heating template (3) comprises a top steel plate (31), the top steel plate (31) is attached to the bottom surface of the existing bridge (1), a heating sheet (32) is fixedly arranged on the bottom surface of the top steel plate (31), the heating sheet (32) is connected with an external power supply, a heat-insulating material (33) covers the bottom surface of the heating sheet (32), a bottom steel plate (34) is arranged on the bottom surface of the heat-insulating material (33), the bottom ends of the screw rods (2) penetrate through the self-heating template (3), and the self-heating template (3) is fixed by nuts; one end, located in the existing bridge (1), of the screw (2) is fixedly connected with a heat conduction assembly (4), the heat conduction assembly (4) comprises a connecting rod (41), the connecting rod (41) and the screw (2) are fixedly connected with one end, located in the existing bridge (1), of the screw, the connecting rod (41) is perpendicular to the screw (2), the connecting rod (41) is arranged on the end face, close to the two existing bridges (1), of the screw (2), and one end, far away from the screw (2), of the connecting rod (41) is fixedly connected with a heat conduction steel plate (42); the heat-conducting steel plate (42) is positioned between adjacent main ribs in the existing bridge (1), and the heat-conducting steel plate (42) is not connected with the main ribs in the existing bridge (1); the fixed cover is equipped with mounting panel (21) on screw rod (2), mounting panel (21) are the rectangular plate, mounting panel (21) bottom surface with current bridge (1) bottom surface laminating.
2. The self-heating template capable of being rapidly installed on the wet bridge joint according to claim 1, wherein: and the outer surface of the mounting plate (21) is coated with heat insulation paint.
3. The self-heating template capable of being rapidly installed on the wet bridge joint according to claim 1, wherein: the screw rod (2) is sleeved with a heat insulation shell (22), and the heat insulation shell (22) is a plastic sleeve.
4. The self-heating template capable of being rapidly installed on the wet bridge joint according to claim 1, wherein: bottom surface steel sheet (34) are top surface open-ended cuboid casing, just insulation material (33) with bottom surface steel sheet (34) inner wall laminating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110415084.5A CN113265946B (en) | 2021-04-17 | 2021-04-17 | Spontaneous heating template that wet seam of bridge can be installed fast |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110415084.5A CN113265946B (en) | 2021-04-17 | 2021-04-17 | Spontaneous heating template that wet seam of bridge can be installed fast |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113265946A CN113265946A (en) | 2021-08-17 |
| CN113265946B true CN113265946B (en) | 2022-10-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110415084.5A Active CN113265946B (en) | 2021-04-17 | 2021-04-17 | Spontaneous heating template that wet seam of bridge can be installed fast |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114717959A (en) * | 2022-04-14 | 2022-07-08 | 中交第四公路工程局有限公司 | Heat storage and heat preservation maintenance device for bridge wet joint concrete |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5266291B2 (en) * | 2010-10-12 | 2013-08-21 | 横河工事株式会社 | Construction method of bridge deck and joint structure of precast deck |
| CN102900021B (en) * | 2012-09-28 | 2015-04-29 | 中铁四局集团第一工程有限公司 | Split mounting type bridge wet joint construction method |
| CN106239711A (en) * | 2016-08-26 | 2016-12-21 | 中交第二航务工程局有限公司 | A kind of cast-in-situ concrete member maintenance process in winter |
| CN208618271U (en) * | 2018-06-14 | 2019-03-19 | 中铁三局集团有限公司 | It is a kind of to heat template for the wet seam maintenance of beam sections |
| CN208815887U (en) * | 2018-08-02 | 2019-05-03 | 中铁科学研究院有限公司 | A kind of heat preservation template |
| CN210946520U (en) * | 2019-10-18 | 2020-07-07 | 牛婉君 | Steel form for highway bridge concrete |
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