CN213804889U - Cast-in-place decking die carrier system of steel longeron - Google Patents
Cast-in-place decking die carrier system of steel longeron Download PDFInfo
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- CN213804889U CN213804889U CN202021730030.5U CN202021730030U CN213804889U CN 213804889 U CN213804889 U CN 213804889U CN 202021730030 U CN202021730030 U CN 202021730030U CN 213804889 U CN213804889 U CN 213804889U
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- truss
- lower chord
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- steel truss
- girder body
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
- E04G11/36—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for floors, ceilings, or roofs of plane or curved surfaces end formpanels for floor shutterings
- E04G11/48—Supporting structures for shutterings or frames for floors or roofs
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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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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
- E04G11/36—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for floors, ceilings, or roofs of plane or curved surfaces end formpanels for floor shutterings
- E04G11/365—Stop-end shutterings
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The utility model discloses a cast-in-place decking die carrier system of steel longeron, including steel longeron lower chord girder body group, template device, triangle truss, the template device is located the top of steel longeron lower chord girder body group, the triangle truss is located in the middle of steel longeron lower chord girder body group, the utility model discloses there is the unsuitable problem of crossing a river, striding line to the cast-in-place decking construction method of current steel longeron, provides a cast-in-place decking die carrier system of steel longeron, and this die carrier system adopts the triangle truss structure to effectively support the template device, is particularly suitable for crossing a river, striding line's construction environment to can guarantee cast-in-place decking construction progress, safety and quality.
Description
Technical Field
The utility model belongs to the technical field of the construction of railway bridge engineering, specifically, relate to a cast-in-place decking die carrier system of steel longeron.
Background
The construction method adopted by the existing steel truss girder cast-in-place bridge deck mainly comprises a full framing method, a movable formwork method and a truss formwork method. The full framing method is suitable for bridges without navigation and traffic requirements and with good foundation bearing capacity. The movable formwork method is suitable for double-line long and large bridges which do not pass through tunnels and do not electrically contact net poles. The truss template method has heavy model, large construction amount of assembly and disassembly and inconvenient transportation. In order to actively respond to the national western major development policy, in recent years, the construction of mountain railways in China is rapidly promoted, the mountain railways have the characteristics of crossing rivers, newly-built lines, complicated highways, crossing of existing railway systems and the like, and the three construction methods are not suitable for the construction of the mountain railway steel truss beam cast-in-place bridge deck.
Therefore, a cast-in-place bridge deck formwork system of the steel truss girder is urgently needed, and the cast-in-place bridge deck formwork system can be suitable for river-crossing and line-crossing construction environments.
SUMMERY OF THE UTILITY MODEL
For overcoming the not enough of above-mentioned prior art, the utility model provides a cast-in-place decking die carrier system of steel longeron, this template system adopt the triangle truss structure to support the template device, are particularly suitable for the construction environment who strides river, stride.
In order to realize the purpose, the utility model discloses a technical scheme is:
a formwork system for a steel truss cast-in-place bridge deck structurally comprises a steel truss lower chord girder body group, a formwork device and a triangular truss, wherein the formwork device is located at the top of the steel truss lower chord girder body group, the triangular truss is located in the middle of the steel truss lower chord girder body group, the steel truss lower chord girder body group comprises a first steel truss lower chord girder body and a second steel truss lower chord girder body, the first steel truss lower chord girder body is located on the right side of the first steel truss lower chord girder body, flanges are arranged at the bottoms of the first steel truss lower chord girder body and the second steel truss lower chord girder body respectively, the triangular truss is arranged between the first steel truss lower chord girder body and the second steel truss lower chord girder body and located at the top of the flanges, the triangular truss comprises a first cross rod and a second cross rod which are fixedly connected with a channel steel in sequence from head to tail, the channel steel is fixedly connected to the upper part consisting of the first cross rod and the second cross rod, and the left end part of the triangular truss is abutted to the first steel truss lower chord girder, the triangular truss is characterized in that a wedge body I is arranged between the right end portion of the triangular truss and the steel truss lower chord beam body II, the template device comprises a bottom template, a side template group, a transverse supporting square wood group and a longitudinal supporting square wood, the longitudinal supporting square wood is located above the channel steel, and a wedge body II is arranged between the longitudinal supporting square wood and the channel steel, the transverse supporting square wood group comprises a certain number of transverse supporting square wood and is perpendicular to the longitudinal supporting square wood and located at the top of the longitudinal supporting square wood, the top of the transverse supporting square wood group is arranged in the bottom template, the left end side and the right end of the bottom template are respectively abutted against the steel truss lower chord beam body I and the steel truss lower chord beam body II, the side template group comprises two side templates, and the two side templates are respectively and fixedly connected to the front side and the rear side of the bottom template.
Preferably, the shape of the triangular truss is an isosceles triangle, and an included angle between the first diagonal rod and the second diagonal rod is an obtuse angle.
Preferably, both ends respectively are equipped with a vertical braces about the triangle truss, vertical braces comprises pole setting and top support, the top and the top of pole setting are held in the palm with the top and are linked to each other, its bottom and triangle truss fixed connection, and on its bottom butt arrived the edge of a wing, the top is held in the palm and is vertically propped up the mutual butt of square timber.
Preferably, the first inclined rod and the second inclined rod are vertically and fixedly connected with a cross rod respectively.
The utility model has the advantages that:
the formwork system adopts a triangular truss structure to support the formwork device, does not need other supports, and is particularly suitable for the construction environment of mountainous areas. The method is characterized in that a triangular truss is placed between the lower chord girder bodies of the steel truss girder by utilizing the stability of the triangular truss, a vertical support is fixed on the triangular truss, the triangular truss is connected through a cross rod to form a triangular truss system, and square timber and a template are sequentially supported above the system to form a cast-in-place bridge deck support system. In addition, the bracket system is light and convenient to install and disassemble, and is suitable for transition; ensuring smooth and efficient cast-in-place construction; the cast-in-place construction progress, safety and quality are ensured; the cost is saved, and the cast-in-place construction method is suitable for cast-in-place construction of river-crossing and line-crossing steel truss bridge decks of mountain railways.
Drawings
FIG. 1 is a schematic structural view of the present invention;
the reference symbols shown in the figures are: 1-first steel truss lower chord beam body, 2-second steel truss lower chord beam body, 3-flanges, 4-channel steel, 5-lower cross bars, 6-first diagonal bars, 7-second diagonal bars, 8-first wedge bodies, 9-bottom formworks, 10-side formworks, 11-longitudinal supporting square timber, 12-transverse supporting square timber, 13-second wedge bodies, 14-vertical rods, 15-top supports and 16-cross bars.
Detailed Description
The following describes the present design in detail with reference to the accompanying drawings.
As shown in figure 1, the steel truss cast-in-place bridge deck formwork system structurally comprises a steel truss lower chord girder body group, a formwork device and a triangular truss, wherein the formwork device is positioned at the top of the steel truss lower chord girder body group, the triangular truss is positioned in the middle of the steel truss lower chord girder body group, the steel truss lower chord girder body group comprises a first steel truss lower chord girder body 1 and a second steel truss lower chord girder body 2, the second steel truss lower chord body 2 is positioned on the right side of the first steel truss lower chord girder body 1, the bottoms of the first steel truss lower chord body 1 and the second steel truss lower chord body 2 are respectively provided with a flange 3, the triangular truss is arranged between the first steel truss lower chord girder body 1 and the second steel truss lower chord body 2 and positioned at the top of the flange 3, the triangular truss comprises a channel steel 4, a lower cross bar 5, a first diagonal bar 6 and a second diagonal bar 7 which are sequentially and fixedly connected with the head and the tail, wherein the channel steel 4 is fixedly connected with the included angle formed by the first diagonal bar 5 and the second diagonal bar 6, the left end part of the triangular truss is abutted against the first truss lower chord girder body, a wedge body I8 is arranged between the right end part of the triangular truss and the second steel truss lower chord girder body 2 and used for adjusting and fixing the triangular truss and ensuring the stability of the triangular truss, wherein the template device comprises a bottom template 9, a side template group, a transverse supporting square timber group and a longitudinal supporting square timber 11, the longitudinal supporting square timber 11 is positioned above the channel steel 4, a wedge body II 13 is arranged between the longitudinal supporting square timber and the channel steel 4 and used for adjusting the elevation of the bottom template 9 and transmitting the load above the template to ensure the stability of the template and the smoothness of a cast-in-place bridge deck, the transverse supporting square timber group comprises a certain number of transverse supporting square timbers 12 which are mutually vertical to the longitudinal supporting square timber 11 and positioned at the top of the longitudinal supporting square timber 11 to play a firm supporting effect, the bottom template 9 is arranged at the top of the transverse supporting square timber group, and the left end and the right end of the bottom template are respectively abutted against the first steel truss girder lower chord girder body 1 and the second steel truss girder lower chord girder body 2, the side template group comprises two side templates 10, and the two side templates 10 are respectively and fixedly connected to the front side and the rear side of the bottom template 9, so that the bottom template 9, the side template group and the top of the steel truss girder lower chord girder group form a space for pouring the bridge deck together, and concrete pouring construction can be directly carried out.
The triangular truss is in an isosceles triangle shape, and an included angle between the first diagonal rod 6 and the second diagonal rod 7 is an obtuse angle.
Wherein, both ends respectively are equipped with a vertical braces about the triangle truss, vertical braces comprises pole setting 14 and top support 15, the top and the top of pole setting 14 are held in the palm 15 and are linked to each other, its bottom is detained through the bowl and is connected with triangle truss fixed connection, and its bottom butt is to the edge of a wing 3, and is firm reliable, can support the load of triangle truss top, top support 15 and vertical support pad square timber 11 mutual butt, top support 15 is used for adjusting the elevation of die block board 9 and transmits the load above the template, guarantee the stability of template and the ride comfort of cast-in-place decking.
The first diagonal rod 6 and the second diagonal rod 7 are vertically and fixedly connected with a cross rod 16 respectively, and when the cast-in-place bridge deck formwork system is used for assembling a plurality of steel truss cast-in-place bridge deck formwork systems, all the triangular trusses are connected in series and fixed to form a whole, the whole triangular truss system is fixed, and the stability of the triangular trusses is guaranteed.
Examples
The utility model discloses during the actual application, according to on-the-spot actual need length, assemble by the cast-in-place decking die carrier system of a plurality of steel longerons and constitute, specifically divide into following several steps:
a. welding the triangular truss: firstly, cutting a seamless steel pipe on the ground according to the actual required sizes of a lower cross bar 5, an inclined bar I6 and an inclined bar II 7, simultaneously cutting channel steel 4 to a certain length, and then respectively welding and forming;
b. mounting the triangular truss: and hoisting the triangular truss welded on the ground to the middle of the steel truss lower chord beam body group for installation, sequentially arranging the transverse bridges of the triangular truss at certain intervals, and driving the wedge bodies I8 into the transverse bridges to fix the triangular truss. After the whole internode triangular truss is installed, the cross rods 16 are respectively fixed on the triangular truss through the bowl buckles, so that the triangular trusses are connected into a whole, and the stability of the support is ensured.
c. Vertical support installation: after the triangular truss is installed and fixed in place, the upright stanchion 14 which is cut in advance and has a certain length is fixed on the lower cross bar 5 of the triangular truss through a bowl buckle, the lower end part of the upright stanchion 14 is placed on the flange 3 of the beam body group of the lower chord beam of the steel truss, and the top support 15 is inserted into the upper end part of the upright stanchion 14.
d. And (3) installing the longitudinal support square timber 11 and the transverse support square timber 12: and placing the longitudinal support square timbers 11 which are cut in advance on the jacking supports 15 at the two sides, driving the second wedge bodies 13 into the channel steel 4 for fixation, and starting to place the transverse support square timbers 12 at certain intervals after the longitudinal support square timbers 11 are completely placed.
e. Installation of the bottom template 9: after the manufactured bottom template 9 is cleaned and coated with a release agent, the bottom template 9 is installed on the transverse support square timber group, the gap between the bottom template 9 and the top of the steel truss girder lower chord girder group is not more than 2mm, the seam between the template and the template is not more than 2mm, and the splicing seam position of the template and the position of the bottom template 9 corresponding to the steel truss girder lower chord girder group are subjected to jointing by glass cement and then are adhered by transparent cement so as to prevent slab staggering.
f. Installation of sideforms 10: after the bottom template 9 is installed, the side templates 10 are installed one by one from one end of the beam body to the other end, the elevation and the line type of the side templates 10 are checked in time in the installation process, if deviation exists, adjustment is carried out in time, and the splicing seam positions of the templates are subjected to glass cement pointing and then are pasted with transparent cement to prevent slab staggering.
g. Pre-pressing test and fine adjustment of a die carrier: and performing a prepressing test after the die carrier is installed, wherein the prepressing is used for testing the deformation of the die carrier system after the concrete is poured. In the prepressing test, a concrete precast slab with the weight equal to that of concrete is directly acted on the bottom template 9, the prepressing deformation is used as the pre-camber to be adjusted, and the top support 15 and the second wedge 13 are used for adjustment. And after the pre-camber is adjusted, fine adjustment is carried out on the bridge deck model to be poured, and the pouring construction of concrete can be carried out after the requirements on the size of the formwork and the appearance line type are met.
h. Dismantling a die carrier: after the strength of the cast-in-place bridge deck concrete meets the demolding requirement (not less than 37.5Mpa), the side templates 10 are firstly removed, and then the triangular truss, the longitudinal supporting square timber 11 and the transverse supporting square timber 12 are removed, so that the bottom template 9 is separated from the concrete surface.
Claims (4)
1. The steel truss cast-in-place bridge deck formwork system is characterized by comprising a steel truss lower chord girder body group, a formwork device and a triangular truss, wherein the formwork device is positioned at the top of the steel truss lower chord girder body group, the triangular truss is positioned in the middle of the steel truss lower chord girder body group, the steel truss lower chord girder body group comprises a first steel truss lower chord girder body and a second steel truss lower chord girder body, the first steel truss lower chord girder body is positioned on the right side of the first steel truss lower chord girder body, the bottoms of the first steel truss lower chord girder body and the second steel truss lower chord girder body are respectively provided with a flange, the triangular truss is arranged between the first steel truss lower chord girder body and the second steel truss lower chord girder body and positioned at the top of the flange, the triangular truss comprises a channel steel, a first diagonal rod and a second diagonal rod which are sequentially and fixedly connected end to end, the channel steel is fixedly connected to the upper part formed by the first diagonal rod and the second diagonal rod, the utility model discloses a steel truss, including triangle truss, first truss, second truss, first wedge body, the template device includes die block board, side form group, horizontal bolster square timber group, vertical bolster square timber is located the top of channel-section steel, and is equipped with a second wedge body between its and the channel-section steel, horizontal bolster square timber group includes the horizontal bolster square timber of a certain quantity to with vertical bolster square timber mutually perpendicular and be located the top of vertical bolster square timber, the top of horizontal bolster square timber group is arranged in to the die block board, and its left and right sides both ends side do not with first truss, second truss of lower chord body butt, side form group includes two side form boards, two side form boards are fixed connection in the front and back both sides of die block board respectively.
2. The formwork system for a cast-in-place bridge deck slab of a steel truss girder as claimed in claim 1, wherein the triangular truss is shaped as an isosceles triangle, and the included angle between the first diagonal member and the second diagonal member is an obtuse angle.
3. The formwork system for a steel truss cast-in-place bridge deck as claimed in claim 1, wherein the left and right ends of the triangular truss are respectively provided with a vertical support, the vertical supports are composed of vertical rods and top supports, the top ends of the vertical rods are connected with the top supports, the lower parts of the vertical rods are fixedly connected with the triangular truss, the bottom parts of the vertical rods are abutted against the flanges, and the top supports are abutted against the longitudinal support square timber.
4. The formwork system for the cast-in-place bridge deck slab of the steel truss girder as claimed in claim 1, wherein a cross bar is vertically and fixedly connected to each of the first diagonal member and the second diagonal member.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021730030.5U CN213804889U (en) | 2020-08-19 | 2020-08-19 | Cast-in-place decking die carrier system of steel longeron |
| DE202020106400.2U DE202020106400U1 (en) | 2020-08-19 | 2020-11-06 | Formwork system for a bridge deck slab cast on site with a steel truss |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021730030.5U CN213804889U (en) | 2020-08-19 | 2020-08-19 | Cast-in-place decking die carrier system of steel longeron |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213804889U true CN213804889U (en) | 2021-07-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021730030.5U Active CN213804889U (en) | 2020-08-19 | 2020-08-19 | Cast-in-place decking die carrier system of steel longeron |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN213804889U (en) |
| DE (1) | DE202020106400U1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116290742A (en) * | 2023-03-31 | 2023-06-23 | 中建三局第一建设工程有限责任公司 | Polygonal column template system and construction method thereof |
| CN118127944B (en) * | 2024-05-08 | 2024-07-09 | 山东金衢设计咨询集团有限公司 | Bridge cast-in-place concrete anti-collision guardrail template trolley |
-
2020
- 2020-08-19 CN CN202021730030.5U patent/CN213804889U/en active Active
- 2020-11-06 DE DE202020106400.2U patent/DE202020106400U1/en not_active Expired - Lifetime
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| Publication number | Publication date |
|---|---|
| DE202020106400U1 (en) | 2021-01-26 |
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