CN111305103B - Rapid construction method of ETC portal frame - Google Patents
Rapid construction method of ETC portal frame Download PDFInfo
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- CN111305103B CN111305103B CN202010123484.4A CN202010123484A CN111305103B CN 111305103 B CN111305103 B CN 111305103B CN 202010123484 A CN202010123484 A CN 202010123484A CN 111305103 B CN111305103 B CN 111305103B
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- 238000010276 construction Methods 0.000 title claims abstract description 36
- 239000000463 material Substances 0.000 claims description 8
- 238000003466 welding Methods 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 238000009434 installation Methods 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 6
- 230000000712 assembly Effects 0.000 abstract description 5
- 238000000429 assembly Methods 0.000 abstract description 5
- 210000001503 joint Anatomy 0.000 abstract 1
- 229910000831 Steel Inorganic materials 0.000 description 4
- 238000009826 distribution Methods 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 239000000758 substrate Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F9/00—Arrangement of road signs or traffic signals; Arrangements for enforcing caution
- E01F9/60—Upright bodies, e.g. marker posts or bollards; Supports for road signs
- E01F9/696—Overhead structures, e.g. gantries; Foundation means specially adapted therefor
Abstract
The invention discloses a rapid construction method of an ETC portal frame, which comprises the steps of assembling portal frame stand columns and portal frame cross beams, arranging flange templates, installing a plurality of flanges on each flange template and assembling the flanges to form flange assemblies, respectively assembling the portal frame stand columns and the portal frame cross beams with the flange assemblies, dismantling the flange templates, and fixedly butting two ends of the portal frame cross beams with the portal frame stand columns. According to the invention, a plurality of flanges on the flange assembly can be positioned and fixed with the portal frame cross beam or the portal frame upright column at the same time, so that the flange mounting working time is shortened; because the flange template uses the same standard, the flange assembly can be completely matched with the portal upright post and the portal cross beam, and the flange template is arranged, so that the positioning time during flange installation is shortened, and the butt joint precision between the portal cross beam and the portal upright post is improved; according to the invention, the gantry beam and the gantry upright post are assembled in sections, and an assembling jig frame is not required to be integrally arranged, so that the transportation time of the gantry in the construction process is reduced, and the construction period is short.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to a rapid construction method of an ETC portal frame.
Background
Along with the gradual increase of the coverage of the expressway, the demand of the ETC portal is gradually increased, and each provincial toll station builds and reforms a large number of ETC portals so as to perfect the hardware basis of the expressway electronic toll collection system.
In order to meet the field installation requirement when the ETC portal frame is manufactured, the punching precision of flange plates at multiple positions on the same plane needs to be ensured, the traditional manufacturing method generally adopts a method for integrally assembling and controlling the flange connection precision, the portal frame needs to be transported and assembled for multiple times, a large amount of jig frame materials are consumed, the site resources are occupied, the labor cost is high, and the production period is long.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a rapid construction method of the ETC portal frame, which can improve the construction efficiency of the ETC portal frame.
One embodiment of the invention provides an ETC portal rapid construction method, which comprises the following steps:
s10, assembling the door frame upright post and the door frame cross beam;
s20, flange templates are arranged, and a plurality of flanges are arranged on each flange template and assembled to form a flange assembly;
s30, assembling the gantry upright post, the gantry beam and the flange assembly, and dismantling the flange template;
and S40, butting and fixing the two ends of the gantry beam with the gantry upright post.
The rapid construction method of the ETC portal frame in the embodiment of the invention at least has the following beneficial effects:
according to the invention, a plurality of flanges can be arranged on each flange template, so that when the flange assembly is assembled with the door frame beam or the door frame upright post, the plurality of flanges on the flange assembly can be positioned and fixed with the door frame beam or the door frame upright post simultaneously, and the flange installation working hour is shortened; the flange on the flange template is installed according to the size specifications of the portal upright post and the portal cross beam which are determined in advance, and the flange assembly can be completely matched with the portal upright post and the portal cross beam due to the fact that the flange template uses the same standard; according to the invention, the gantry beam and the gantry upright post are assembled in sections, and an assembling jig frame is not required to be integrally arranged, so that the transportation time of the gantry in the construction process is reduced, and the construction period is short.
According to other embodiments of the invention, the step of assembling the mast stand in S10 includes:
building a first horizontal jig frame;
fixing a support upright post on the first horizontal jig frame;
and a bottom plate is fixed at the bottom of the support upright post, and a support bracket is fixed on the side part of the support upright post.
According to other embodiments of the present invention, in the rapid construction method of an ETC portal, the step of assembling the portal column in S10 further includes: the two supporting upright posts are arranged, a first web member is fixed between the two supporting upright posts, and a stiffening plate is fixed at the joint of the bottom plate and the supporting upright posts.
According to other embodiments of the invention, the step of assembling the gantry beam in S10 includes:
erecting a support truss and a second horizontal jig frame;
and fixing the support trusses on the second horizontal jig frame, and welding web members between the adjacent support trusses.
According to other embodiments of the rapid construction method of the ETC portal of the present invention, the step of assembling the portal beam in S10 further includes: and arranging two chords and positioning, and fixing a second web member between the two chords to form the support truss.
According to other embodiments of the invention, the method for rapidly constructing the ETC portal comprises the following steps: and arranging a template base material, and drilling a plurality of flange holes for installing flanges on the template base material according to the portal beam and the portal upright post structure.
According to other embodiments of the present invention, the method for rapid construction of an ETC portal includes the steps of: and placing the flange template on a standard jig frame, and temporarily fixing the flange through the flange hole.
According to other embodiments of the invention, the assembling step of the mast column and the flange assembly in S30 comprises:
the flange assembly is reversely buckled on the support bracket, and the flange assembly and the support bracket are positioned;
and fixing the flange on the flange assembly to the end part of the support bracket.
According to other embodiments of the ETC portal rapid construction method, the support bracket comprises a bracket chord, the flange is coaxial with the bracket chord, and the flange template is parallel to a central plane of the portal upright post.
According to other embodiments of the rapid construction method of the ETC portal of the present invention, the assembling step of the portal frame beam and the flange assembly in S30 includes:
attaching the flange assembly to an end of the gantry beam and positioning the flange assembly and the gantry beam;
and fixing the flange on the flange assembly at the end part of the portal beam.
According to other embodiments of the invention, the ETC portal beam comprises a support chord, the flange and the support chord are coaxial, and the flange template is parallel to the end face of the portal beam.
According to other embodiments of the invention, in the rapid construction method of the ETC portal, the step of butting the portal beam and the portal column in S40 includes:
aligning and butting a flange fixed on the portal beam with a flange fixed at a corresponding position on the portal upright post;
and fixing the butted flange.
Drawings
FIG. 1 is a schematic flow diagram of one embodiment of a rapid ETC portal construction method;
FIG. 2 is a schematic structural view of one embodiment of a mast;
FIG. 3 is a schematic structural view of one embodiment of a gantry beam;
FIG. 4 is a schematic structural view of one embodiment of a flange form;
FIG. 5 is a schematic structural view of one embodiment of a flange assembly;
FIG. 6 is a schematic view of the installation of the flange assembly with the mast upright;
FIG. 7 is a schematic view of the mounting of the flange assembly to the frame rail;
fig. 8 is a schematic structural view of the assembled ETC portal.
Detailed Description
The concept and technical effects of the present invention will be clearly and completely described below in conjunction with the embodiments to fully understand the objects, features and effects of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and those skilled in the art can obtain other embodiments without inventive effort based on the embodiments of the present invention, and all embodiments are within the protection scope of the present invention.
In the description of the embodiments of the present invention, if an orientation description is referred to, for example, the orientations or positional relationships indicated by "upper", "lower", "front", "rear", "left", "right", etc. are based on the orientations or positional relationships shown in the drawings, only for convenience of describing the present invention and simplifying the description, but not for indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
In the description of the embodiments of the present invention, if a feature is referred to as being "disposed", "fixed", "connected", or "mounted" to another feature, it may be directly disposed, fixed, or connected to the other feature or may be indirectly disposed, fixed, connected, or mounted to the other feature. In the description of the embodiments of the present invention, if "a number" is referred to, it means one or more, and if "a plurality" is referred to, it means two or more. If reference is made to "first" or "second", this should be understood to distinguish between features and not to indicate or imply relative importance or to implicitly indicate the number of indicated features or to implicitly indicate the precedence of the indicated features.
Fig. 1 shows a schematic flow diagram of an embodiment of an ETC portal rapid construction method, and referring to fig. 1, the ETC portal rapid construction method in the embodiment includes the following steps:
s10, assembling the door frame upright post and the door frame cross beam;
s20, flange templates are arranged, and a plurality of flanges are arranged on each flange template and assembled to form a flange assembly;
s30, assembling the gantry upright post, the gantry beam and the flange assembly, and removing the flange template;
and S40, butting and fixing the two ends of the portal beam with the portal upright posts.
Specifically, the portal upright post is used for supporting the portal cross beam, the flanges on the flange assemblies are used for realizing the connection between the portal upright post and the portal cross beam, and a plurality of flanges can be installed on each flange template, so that when the flange assemblies are assembled with the portal cross beam or the portal upright post, the flanges on the flange assemblies can be simultaneously positioned and fixed with the portal cross beam or the portal cross beam, and the flange installation time is shortened; the flange on the flange template is installed according to the size specifications of the portal upright post and the portal cross beam which are determined in advance, and the flange assembly can be completely matched with the portal upright post and the portal cross beam due to the fact that the flange template uses the same standard; in the embodiment, the gantry beam and the gantry upright post are assembled in sections without integrally arranging an assembling jig, so that the transportation time of the gantry in the construction process is reduced, the construction period is short, a large amount of jig materials are not required, and the site occupancy rate is low; after the flange is assembled with the portal beam and the portal upright post, the flange template can be detached and can be reused, and the resource utilization rate is high.
It should be noted that two portal columns are provided and are respectively used for supporting two ends of the portal beam. The assembly of the portal upright post, the assembly of the portal cross beam and the assembly of the flange assembly can be carried out simultaneously, and the construction time is shortened.
Referring to fig. 2, the step of assembling the mast 100 further includes building a first horizontal jig 200 for assembling the mast 100, and then fixing the support mast 110 on the first horizontal jig 200, the support mast 110 being a main support member of the mast 100, fixing a bottom plate 120 at the bottom of the support mast 110, the bottom plate 120 being for contacting the ground to provide a stable support force, fixing a support corbel 130 at a side of the support mast 110, the support corbel 130 being for supporting the mast beam 300.
Specifically, firstly, a ground sample line of the installation position of the support columns 110 can be marked on the steel platform, and the first horizontal jig 200 is set up according to the ground sample line, in this embodiment, each portal column 100 includes two support columns 110 to ensure that the portal column 100 has sufficient structural strength, the two support columns 110 are positioned according to the ground sample line, the first web member 140 is welded between the two support columns 110, and two ends of the first web member 140 are respectively fixed on the two support columns 110, so that the two support columns 110 form a stable structure, and the structural strength of the portal column 100 is increased. Then, the bottom parts of the two support columns 110 are welded with the bottom plates 120, and the surfaces of the bottom plates 120 are parallel to and attached to the end surfaces of the support columns 110, so that the support columns 110 are prevented from shaking due to the fact that the bottom plates 120 are not firmly contacted with the ground; the joint of the bottom plate 120 and the support column 110 is further welded with a plurality of stiffening plates 150, which are arranged in the embodiment, wherein the stiffening plates 150 surround the support column 110 in the circumferential direction. The support bracket 130 is welded on the side of the support upright 110, in this embodiment, the support bracket 130 includes four bracket chords 131, the ends of the four bracket chords 131 are welded on the support upright 110 and perpendicular to the support upright 110, web members 132 are fixed between the adjacent bracket chords 131 to ensure the structural strength of the support bracket 130, and stiffening plates 150 are welded on the bracket chords 131 and the support upright 110 to strengthen the connection strength of the two.
It should be noted that two portal columns 100 are provided, and the two portal columns 100 have the same structure, so that the two portal columns 100 can be assembled at the same time. The supporting columns 110 and the bracket chord 131 can be round pipes which can be used for blanking according to a pre-manufactured model to work out an intersecting line cutting program.
Referring to fig. 3, the step of assembling the portal cross member 300 includes building the support truss 310 and the second horizontal jig 400, fixing the support truss 310 on the second horizontal jig 400, and welding the diagonal web members 320 to the two support trusses 310 for quality inspection, so as to connect and fix the two support trusses 310, thereby forming the portal cross member 300.
Specifically, each support truss 310 comprises two support chords 311, a ground sample line of the installation position of each support chord 311 can be firstly marked on the steel platform, a second horizontal jig 400 is set up according to the ground sample line, then the two support chords 311 are positioned on the second horizontal jig, second web members 312 are welded between the support chords 311, the second web members 312 are used for connecting the two support chords 311, the support trusses 310 are formed after the second web members 312 and the support chords 311 are assembled, and the two support trusses 310 can be simultaneously welded; two pieces of the support trusses 310 with the completed resistance welding are erected on the second horizontal jig 400, and are positioned, and then the diagonal web members 320 are welded to the two pieces of the support trusses 310 for quality inspection, so that the two pieces of the support trusses 310 are combined to form the portal frame beam 300.
In this embodiment, the supporting chord 311 can be made of a circular tube, and the circular tube can also be cut by an intersecting line cutting program according to a pre-made model. After the assembly of the gantry beam 300 is completed, the assembly accuracy of the two ends of the support chord 311 is corrected according to the plumb and the ground sample line, so that the subsequent assembly accuracy of the gantry is ensured.
Referring to fig. 4, the manufacturing of the flange template 510 includes the steps of providing a template substrate 511 and drilling a flange hole 512 on the template substrate 511, specifically, the template substrate 511 may be a rectangular steel plate, and the steel plate may be cut by plasma numerical control to obtain a preset size and specification; according to the sizes of the flanges butted with the portal beam 300 and the portal upright 100, the distribution of the support chords 311 in the portal beam 300 and the distribution of the support uprights 110 in the portal upright 100, the mounting positions of the flanges are arranged on the template base material 511, and a numerical control plane is adopted to drill flange holes 512 on the thin plate base material, wherein the flange holes 512 are used for fixing the flanges. In this embodiment, four mounting positions of the flange 520 are provided on the template base 511, and each mounting position is provided with 8 flange holes 512, so as to correspond to the structures of the gantry beam 300 and the gantry column 100.
Referring to fig. 5, the assembly of the flange assembly 500 includes placing the flange form 510 on a standard jig frame and temporarily fixing the flange 520 through the flange hole 512. Specifically, the flange mold plate 510 is horizontally placed on the jig frame, the flange 520 is placed at each mounting position of the flange mold plate 510, the mounting holes in the flange 520 are aligned with the flange holes 512 in the flange mold plate 510, and the flange 520 and the flange holes 512 are penetrated with pins and/or bolts for temporary fixing, so that the flange assembly 500 is assembled.
Referring to fig. 6, the assembling steps of the mast upright 100 and the flange assembly 500 include first reversing the flange assembly 500 onto the support bracket 130, positioning the flange assembly 500 and the support bracket 130, and then fixing the flange 520 of the positioned flange assembly 500 to the end of the support bracket 130. Specifically, after the flange assembly 500 is turned over on the bracket chord 131, the position of the flange mold plate 510 is adjusted to align the axis of each flange 520 with the axis of the bracket chord 131 connected thereto, and the levelness of the flange mold plate 510 is measured by using a leveling rod, so as to ensure that the flange mold plate 510 is parallel to the central plane of the gantry upright post 100, thereby ensuring the assembly accuracy. In this embodiment, four flanges connected to the bracket chord 131 and the flange template 510 are provided, and the positions of the bracket chord 131 and the flanges 520 correspond to each other, so that when the flange assembly 500 is assembled with the support bracket 130, the four flanges 520 can be positioned with the support bracket 130 at the same time, and the assembly efficiency of the flanges 520 and the support bracket 130 is improved.
The flange 520 after positioning is welded with the end of the bracket chord 131 to realize fixation, and the stiffening plate 150 is welded at the joint of the flange 520 and the bracket chord 131 to strengthen the connection strength. After the flange 520 is fixed to the bracket chord 131, the flange form 510 may be removed, and the flange form 510 may be transferred or the next gantry assembly may be performed.
Referring to fig. 7, the assembly of gantry beam 300 with flange assembly 500 includes attaching flange assembly 500 to an end of gantry beam 300 and positioning flange assembly 500 with gantry beam 300, and then securing the flange of the positioned flange assembly 500 to the end of gantry beam 300. Specifically, after the flange assembly 500 is attached to the end of the gantry beam 300, the position of the flange mold plate 510 is adjusted so that the axis of each flange 520 is aligned with the axis of the support chord 311 connected thereto, and the perpendicularity of the flange mold plate 510 is measured by a plumb bob, so as to ensure that the flange mold plate 510 is parallel to the end surface of the gantry beam 300, and ensure the assembly accuracy of the flange 520 and the gantry beam 300. And welding the positioned flange 520 and the end part of the support chord 311 to realize fixation, and welding a stiffening plate 150 at the joint of the flange 520 and the support chord 311 to strengthen the connection strength of the flange 520 and the support chord 311. After the flange 520 is fixed to the bracket chord 131, the flange form 510 may be removed. It should be noted that, in fig. 7, a schematic view of mounting flanges 520 at one end of the gantry beam 300 is shown, mounting flanges 520 are required at both ends of the gantry beam 300, and the flanges 520 at both ends of the gantry beam 300 can be simultaneously mounted.
In this embodiment, the gantry beam 300 is provided with four support chords 311, and when the flange assembly 500 is assembled with the gantry beam 300, all the flanges 520 on the flange assembly 500 can be positioned with the support chords 311 at the same time, so that the assembly efficiency is high. The distribution mode of the support chord 311 is the same as that of the bracket chord 131, so the flange assembly 500 is suitable for mounting the flanges 520 on the portal upright 100 and the portal cross beam 300, and the positioning accuracy of the flanges 520 on the portal upright 100 and the portal cross beam 300 is higher by adopting the same mounting template, and the flanges on the portal upright 100 and the portal cross beam 300 can be positioned and butted simultaneously, so the assembly efficiency is high.
After the assembly of the portal beam 300 and the portal upright post 100 is completed, two ends of the portal beam 300 are respectively provided with the portal upright post 100, flanges on the portal upright post 100 are butted with flanges 520 on the portal beam 300, four flanges are arranged at the joint of the portal beam 300 and the portal upright post 100, and the distribution conditions of the flanges 520 are the same, so that the positioning can be realized by aligning the portal beam 300 and the flanges 520 on the portal upright post 100 one by one, and then the two flanges 520 butted with each other are fixed, thereby realizing the fixed assembly of the portal beam 300 and the portal upright post 100, and the assembled portal is as shown in fig. 8.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention. Furthermore, the embodiments of the present invention and the features of the embodiments may be combined with each other without conflict.
Claims (12)
1. A rapid construction method for an ETC portal frame is characterized by comprising the following steps:
s10, assembling the door frame upright post and the door frame cross beam;
s20, flange templates are arranged, and a plurality of flanges are arranged on each flange template and assembled to form a flange assembly;
s30, assembling the gantry upright post, the gantry beam and the flange assembly, and dismantling the flange template;
and S40, butting and fixing the two ends of the gantry beam with the gantry upright post.
2. The ETC portal rapid construction method according to claim 1, wherein the step of assembling the portal columns in S10 comprises:
building a first horizontal jig frame;
fixing a support upright post on the first horizontal jig frame;
and a bottom plate is fixed at the bottom of the support upright post, and a support bracket is fixed on the side part of the support upright post.
3. The ETC portal rapid construction method according to claim 2, wherein the step of assembling the portal columns in S10 further comprises: the two supporting upright posts are arranged, a first web member is fixed between the two supporting upright posts, and a stiffening plate is fixed at the joint of the bottom plate and the supporting upright posts.
4. The ETC gantry rapid construction method according to claim 1, wherein the step of assembling the gantry beam in S10 includes:
erecting a support truss and a second horizontal jig frame;
and fixing the support trusses on the second horizontal jig frame, and welding web members between the adjacent support trusses.
5. The ETC gantry rapid construction method according to claim 4, wherein the step of assembling the gantry beam in S10 further comprises: and arranging two chords and positioning, and fixing a second web member between the two chords to form the support truss.
6. The ETC portal rapid construction method according to claim 1, wherein the manufacturing of the flange template in the S20 comprises the following steps: and arranging a template base material, and arranging a plurality of flange holes for installing flanges on the template base material according to the portal beam and the portal upright post structure.
7. The ETC portal rapid construction method according to claim 6, wherein the step of assembling the flange assembly comprises: and placing the flange template on a standard jig frame, and temporarily fixing the flange through the flange hole.
8. The ETC portal rapid construction method according to claim 2, wherein the assembling step of the portal column and the flange assembly in S30 comprises:
the flange assembly is reversely buckled on the support bracket, and the flange assembly and the support bracket are positioned;
and fixing the flange on the flange assembly to the end part of the support bracket.
9. The ETC portal rapid construction method according to claim 8, wherein the support bracket comprises a bracket chord, the flange is coaxial with the bracket chord, and the flange template is parallel to a central plane of the portal upright.
10. The ETC portal rapid construction method according to claim 1, wherein the assembling step of the portal frame beam and the flange assembly in S30 comprises:
attaching the flange assembly to an end of the gantry beam and positioning the flange assembly and the gantry beam;
and fixing the flange on the flange assembly at the end part of the portal beam.
11. The ETC portal rapid construction method according to claim 10, wherein the portal beam comprises a support chord, the flange is coaxial with the support chord, and the flange template is parallel to the end face of the portal beam.
12. The ETC portal rapid construction method according to claim 1, wherein the step of butting the portal beam and the portal column in S40 comprises the steps of:
aligning and butting a flange fixed on the portal beam with a flange fixed at a corresponding position on the portal upright post;
and fixing the butted flange.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010123484.4A CN111305103B (en) | 2020-02-27 | 2020-02-27 | Rapid construction method of ETC portal frame |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010123484.4A CN111305103B (en) | 2020-02-27 | 2020-02-27 | Rapid construction method of ETC portal frame |
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| CN111305103A CN111305103A (en) | 2020-06-19 |
| CN111305103B true CN111305103B (en) | 2021-09-14 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114855667B (en) * | 2022-06-21 | 2023-07-25 | 中交公路规划设计院有限公司 | Modularized multifunctional integrated traffic portal, design method and installation method |
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Denomination of invention: Rapid construction method for ETC gantry Granted publication date: 20210914 Pledgee: Shenzhen Branch of China Merchants Bank Co.,Ltd. Pledgor: China Construction Engineering Group Co.,Ltd. Registration number: Y2024980000564 |