CN115288436A - Double-column synchronous construction tool type template at large-section narrow deformation joint and construction method - Google Patents
Double-column synchronous construction tool type template at large-section narrow deformation joint and construction method Download PDFInfo
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- CN115288436A CN115288436A CN202211013468.5A CN202211013468A CN115288436A CN 115288436 A CN115288436 A CN 115288436A CN 202211013468 A CN202211013468 A CN 202211013468A CN 115288436 A CN115288436 A CN 115288436A
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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
- E04G15/00—Forms or shutterings for making openings, cavities, slits, or channels
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/16—Arrangement or construction of joints in foundation structures
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/66—Sealings
- E04B1/68—Sealings of joints, e.g. expansion joints
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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
- E04G17/00—Connecting or other auxiliary members for forms, falsework structures, or shutterings
- E04G17/001—Corner fastening or connecting means for forming or stiffening elements
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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
- E04G17/00—Connecting or other auxiliary members for forms, falsework structures, or shutterings
- E04G17/04—Connecting or fastening means for metallic forming or stiffening elements, e.g. for connecting metallic elements to non-metallic elements
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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
- E04G17/00—Connecting or other auxiliary members for forms, falsework structures, or shutterings
- E04G17/04—Connecting or fastening means for metallic forming or stiffening elements, e.g. for connecting metallic elements to non-metallic elements
- E04G17/042—Connecting or fastening means for metallic forming or stiffening elements, e.g. for connecting metallic elements to non-metallic elements being tensioned by threaded elements
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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
- E04G17/00—Connecting or other auxiliary members for forms, falsework structures, or shutterings
- E04G17/06—Tying means; Spacers ; Devices for extracting or inserting wall ties
- E04G17/065—Tying means, the tensional elements of which are threaded to enable their fastening or tensioning
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Abstract
The invention discloses a double-column synchronous construction tool type template at a large-section narrow deformation joint and a construction method, wherein the double-column synchronous construction tool type template comprises the following steps: a plurality of double-column peripheral templates of a hollow tetrahedron are formed by circumferentially splicing and enclosing the peripheries of the double columns; the expansion joint inner template is vertically arranged between the two parallel double-column peripheral templates and is positioned at the gap of the double columns after the concrete is formed; the wedge-shaped steel back ridge is arranged at the top of the template in the expansion joint; the template transverse pull rod is used for connecting two adjacent double-column peripheral templates on the same plane; the template angle pull rod, the template connecting bolt and the template edge sealing angle steel are fixed and arranged between two adjacent double-column peripheral templates of which the surfaces form a right angle. The tool type template double-column can be constructed simultaneously, so that the construction period is saved; the installation is convenient, the stress is reliable, and the forming effect of the upright post is good; can be used for turnover.
Description
Technical Field
The invention relates to the technical field of double-upright-column synchronous construction at an expansion joint of an infrastructure structure, in particular to a tool type template for double-upright-column synchronous construction at a large-section narrow deformation joint.
Background
The expansion joint of the large-scale public infrastructure structure such as a subway vehicle section and a high-speed railway station is generally provided with double columns with large section sizes, the inside of each column is provided with a section steel column with a large section, the structure expansion joint is small in size, a template split screw cannot be installed, and a common steel template cannot be installed in a reinforcing mode. The traditional method of constructing the upright column on one side by using a common steel template and then filling a polyphenyl plate or a foam plate at the expansion joint as a single-side template to construct the upright column on the other side has long construction period, and fillers at the deformation joint are easy to be extruded to generate irregular deformation, so that the upright column has poor forming effect.
Therefore, the research on the technology capable of synchronously constructing the double columns is a technical problem which needs to be solved urgently.
Disclosure of Invention
In order to solve the technical problems, the invention provides a tool type template and a construction method for synchronously constructing two columns at a large-section narrow deformation joint, which can be used for simultaneously constructing the two columns at an expansion joint, wherein the tool type template can simultaneously construct the two columns, so that the construction period is saved; the installation is convenient, the stress is reliable, and the forming effect of the upright post is good; can be used for turnover.
In order to solve the technical problem, the invention adopts the following technical scheme:
the utility model provides a two synchronous construction tool formula templates of post of narrow movement joint department of big cross-section, its characterized in that includes:
a plurality of double-column peripheral templates (1) which are circumferentially spliced and surround the peripheries of the double columns to form a hollow tetrahedron;
the expansion joint inner template (2) is vertically arranged between two parallel double-column peripheral templates (1) and is positioned at the gap of the double columns after concrete is formed;
the wedge-shaped steel back edges (3) are arranged at the tops of the expansion joint inner templates (2) and are fixed between the two parallel double-column peripheral templates (1);
the template transverse pull rod (4) is used for connecting two adjacent double-column peripheral templates (1) which are positioned on the same plane;
the formwork angle pull rod (5), the formwork connecting bolt (6) and the formwork edge sealing angle steel (7) are fixed and arranged between two adjacent double-column peripheral formworks (1) with the surfaces forming a right angle.
In the technical scheme, the double-column peripheral template (1) comprises a first steel panel (11), a plurality of channel steel secondary ridges (12) vertically arranged on the first steel panel (11) at intervals, a plurality of double-spliced channel steel main ridges (13) transversely arranged on the first steel panel (11) at intervals, and plate edge sealing steel plates (14) arranged on the plate surfaces and protruding outwards from the vertical two sides of the first steel panel (11); in the double-spliced channel steel main edge (13), the bottoms of two channel steels are connected and fixed and are transversely arranged perpendicular to the surface of the first steel panel (11); bolt holes are formed in the edge sealing steel plate (14) at certain intervals, and the edge sealing steel plate (14) is connected with the template edge sealing angle steel (7) through the bolt holes through template connecting bolts (6).
Among the above-mentioned technical scheme, be welded connection between first steel face board (11) and channel-section steel inferior stupefied (12), between first steel face board (11) and banding steel sheet (14), between channel-section steel inferior stupefied (12) and the main stupefied (13) of double pin channel-section steel.
In the technical scheme, the template (2) in the expansion joint comprises a second steel panel (21) and a plurality of flat steel slideways (22) which are transversely arranged on the second steel panel (21) at intervals; the second steel panel (21) is welded with the flat steel slideway (22), bolt holes are formed in the two ends of the second steel panel (21) at a certain distance, and the second steel panel is connected and fixed with the edge sealing steel plate (14) through a template connecting bolt (6).
In the technical scheme, the wedge-shaped steel back edge (3) comprises a wedge-shaped iron (31) and a positioning bolt (32) which are transversely arranged; the wedge iron (31) comprises two wedge blocks, wherein the two vertical wedge surfaces of the wedge blocks are spliced into a rectangular hexahedron, the wedge iron (31) is integrally placed on the flat steel slide way (22), the two wedge blocks are wedged tightly, and the ends of the two wedge blocks are fixed on the double-column peripheral template (1) through positioning bolts (32), so that the whole template system forms a whole.
In the technical scheme, the transverse pull rod (4) of the template comprises two stressed steel plates (43) which are vertically arranged at two ends of a rod body of the connecting bolt (41) at intervals, and two parallel triangular plate stiffening ribs (42) are arranged on each stressed steel plate (43) towards the central line of the rod body; the stress steel plate (43) is provided with bolt holes, and the connecting bolts (41) pass through the bolt holes and connect and fix the two double-column peripheral templates (1) spliced into a plane at the position of the expansion joint.
In the technical scheme, the template angle pull rod (5) comprises an angle connecting bolt (51) and two stress angle steels (52) arranged at two ends of the angle connecting bolt (51); a bolt hole is arranged at a right-angle side of the stress angle steel (52), and the bevel edge of the stress angle steel is welded and connected with the double-spliced channel steel main edge (13); the angle joint bolt (51) penetrates through a gap between the stressed double-spliced channel steel main edges (13) and a bolt hole of the stressed angle steel (52) to connect and fix the corner of the double-column peripheral template (1).
In the technical scheme, the template edge sealing angle steel (7) and the edge sealing steel plate (14) are provided with bolt holes at intervals correspondingly, and the corner parts of the template are fixedly connected with the double-column peripheral template (1) through template connecting bolts (6).
A large-section narrow deformation joint double-column synchronous construction method is characterized in that the large-section narrow deformation joint double-column synchronous construction tool type template is adopted;
firstly, installing a first-layer double-column peripheral template, fixing the first-layer double-column peripheral template with template edge sealing angle steel through template connecting bolts, and then installing an expansion joint inner template of the first layer, wherein the expansion joint inner template is connected with the double-column peripheral template through bolt holes on two sides by bolts, so that the displacement of the expansion joint inner template is prevented; after the installation of the expansion joint inner template is finished, pushing the wedge-shaped steel back ridges coated with butter in advance into a designed position along a flat steel slide way of the expansion joint inner template, and fixing the wedge-shaped steel back ridges through positioning bolts at two sides;
after primary reinforcement of the first-layer template is completed, mounting the template angle pull rod and the transverse pull rod; and (4) sequentially installing the second layer of templates and the third layer of templates according to the steps, adjusting the verticality of the templates after all the templates are installed, and plugging the bottoms of the templates by using mortar.
According to the technical scheme, when the formwork needs to be disassembled, the formwork is disassembled from top to bottom, the formwork angle pull rod and the formwork transverse pull rod are firstly disassembled, then the positioning bolts of the wedge-shaped back ridges of the formwork are disassembled, the friction force between the wedge-shaped back ridges of the steel is reduced by using grease, the wedge-shaped back ridges of the steel are drawn out, after the wedge-shaped back ridges of the steel are completely disassembled, the formwork bolts are disassembled, the inner formwork of the double-column expansion joint and the outer formwork of the double-column are sequentially disassembled, and the formwork is sequentially disassembled layer by layer according to the same disassembling steps.
Therefore, the invention realizes the synchronous construction of the double columns by the tool type template which relates to the synchronous construction of the double columns at the large-section narrow deformation joint. The tool type template is suitable for double-column construction of large section size at expansion joints of structures such as subway vehicle sections and high-speed railway stations, and solves the problems that the double-column template at the deformation joint is difficult to support and deform easily, and the structure forming effect is poor.
In addition, the unit part of this instrument formula template is by the outer template of the twin columns that shaped steel and steel sheet welding formed, by the twin columns expansion joint inner formword of steel sheet and band steel welding formation area slide, template angle pull rod, the horizontal pull rod of template, the wedge back of the body that the band steel welding formed is stupefied. Take stupefied key components of this instrument formula template of twin columns expansion joint template and wedge back of the body of slide, it is stupefied with twin columns expansion joint inner formword stationary to utilize the wedge back of the body during twin columns construction, can realize twin columns simultaneous construction, reduces twin columns inner formword deformation, promotes stand shaping effect.
Compared with the prior art, the invention has the beneficial effects that: shorten expansion joint department twin columns construction cycle, simplify expansion joint department template installation process, improve expansion joint department twin columns outward appearance shaping effect.
Drawings
The invention will be further described with reference to the following drawings and examples, in which:
fig. 1 is an overall assembly diagram of a double-column formwork at a contraction joint in the embodiment of the invention.
FIG. 2 is a diagram of a dual post perimeter template configuration.
Fig. 3 is a structural diagram of a template in an expansion joint.
Fig. 4 is a structural diagram of a wedge-shaped steel back ridge.
Fig. 5 is a construction view of a cross tie of the formwork.
Fig. 6 is a construction view of the angle tie of the formwork.
In the figure: 1-double-column peripheral template, 2-expansion joint inner template, 3-wedge-shaped steel back edge, 4-template transverse pull rod, 5-template angle pull rod, 6-template connecting bolt, 7-template edge sealing angle steel, 11-steel panel, 12-channel steel secondary edge, 13-double-spliced channel steel main edge, 14-edge sealing steel plate, 21-steel panel, 22 flat steel slideway, 31-wedge-shaped iron, 32-positioning bolt, 41-connecting bolt, 42-triangular plate stiffening rib, 43-stress steel plate, 51-connecting bolt (51) and 52-stress angle steel.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in FIG. 1, the tool type formwork applied to the double-column synchronous construction at the large-section narrow deformation joint is characterized in that: the expansion joint mainly comprises two column peripheral templates 1 which are circumferentially spliced and enclosed into a tetrahedron, an expansion joint inner template 2 is vertically clamped between two adjacent column peripheral templates 1 which are spliced into one surface and the two column peripheral templates 1, a wedge-shaped steel back ridge 3 is arranged at the top of the expansion joint inner template 2, and the wedge-shaped steel back ridge 3 is also vertical to the two column peripheral templates 1 at two ends. The template transverse pull rod 4 is used for fixing and splicing two adjacent double-column peripheral templates 1 which form a plane. Two adjacent double-column peripheral templates 1 spliced into one corner are fixedly connected through template corner pull rods 5, template connecting bolts 6 and template edge sealing angle steel 7.
As shown in fig. 2, the double-column peripheral formwork 1 includes a first steel panel 11, a secondary channel steel ridge 12, a main double-spliced channel steel ridge 13, and an edge-sealing steel plate 14. And the first steel panel 11 and the channel steel secondary edge 12, the first steel panel 11 and the edge sealing steel plate 14, and the channel steel secondary edge 12 and the double-spliced channel steel main edge 13 are all in welded connection. Bolt holes are formed in the edge sealing steel plate 14 at certain intervals and are connected with the template edge sealing angle steel 7 through template connecting bolts 6.
As shown in fig. 3, the formwork 2 in the expansion joint includes a second steel panel 21 and a flat steel slideway 22. The second steel panel 21 is welded with the flat steel slideway 22, bolt holes are arranged at two ends of the second steel panel 21 according to a certain distance, and the second steel panel is connected and fixed with the edge banding steel plate 14 through the template connecting bolt 6.
As shown in fig. 4, the wedge-shaped steel back edge 3 comprises a wedge iron 31 and a positioning bolt 32. The wedge iron 31 comprises two wedge blocks which are spliced into a rectangular hexahedron by vertical wedge surfaces, the wedge iron 31 is integrally placed on the flat steel slide way 22, the wedge iron 31 is placed on the flat steel slide way 22, the two wedge blocks are mutually wedged, the ends of the two wedge blocks are fixed on the double-column peripheral formwork 1 through positioning bolts 32, and the wedge steel back edge 3 is also perpendicular to the double-column peripheral formwork 1 at the two ends, so that the whole formwork system forms a whole.
As shown in fig. 5, the formwork transverse tie rod 4 includes a connecting bolt 41, two stressed steel plates 43 disposed on the body of the connecting bolt 41, and two triangle stiffening ribs 42 disposed in parallel are disposed on each stressed steel plate 43. The stress steel plate 43, the triangular plate stiffening ribs 42 and the double-spliced channel steel main edge 13 are connected in a pairwise welding manner, so that the double-spliced channel steel main edge 13 is clamped between the triangular plate stiffening ribs 42 on two sides. The stress steel plate 43 is provided with bolt holes, and the double-column peripheral template 1 is fixedly connected at the position of the expansion joint through the bolt holes by the connecting bolts 41.
As shown in fig. 6, the formwork angle tie 5 includes an angle connecting bolt 51 and a force receiving angle steel 52. A stress angle steel bolt hole is formed in one right-angle edge of the stress angle steel 52, and the oblique edge of the stress angle steel 52 is connected with the double-spliced channel steel main edge 13 in a welding mode. The corner connecting bolt 51 penetrates through a gap between the double-spliced channel steel main edges 13 and connects and fixes the corners of the adjacent double-column peripheral templates 1 through stressed angle steel bolt holes.
The template edge sealing angle steel 7 is provided with bolt holes according to a certain distance, and the corner of the template is fixedly connected with two double-column peripheral templates 1 with adjacent included angles through template connecting bolts 6.
After the double-upright-column steel bars at the expansion joint are bound, the tool type template is installed.
Before the template is installed, a layer of release agent is coated on the inner side of each steel panel. Grease is smeared on the inclined plane position of the wedge-shaped steel back ridge 3, so that the smearing is ensured to be even, and the installation and the disassembly of the wedge-shaped back ridge are facilitated.
Installing a template: firstly, sundries at the bottom of the template are cleaned, and the bottom of the first-layer template is ensured to be flat. The first-layer double-column peripheral formwork 1 is installed firstly, and is fixed with formwork edge sealing angle steel 7 through formwork connecting bolts 6, then the first-layer expansion joint inner formwork 2 is installed, and the expansion joint inner formwork 2 is connected with the double-column peripheral formwork 1 through bolt holes on two sides through bolts, so that displacement of the expansion joint inner formwork 2 is prevented. After the expansion joint inner formwork 2 is installed, the wedge-shaped steel back ridges 3 coated with butter in advance are pushed to the designed position along the flat steel slide rails 22 of the expansion joint inner formwork 2 and are fixed through the positioning bolts 32 on the two sides. And (4) mounting the angle pull rod and the transverse pull rod of the template after primary reinforcement of the first-layer template is completed. And (4) sequentially installing the templates on the second layer and the third layer according to the steps, adjusting the verticality of the templates after all the templates are installed, and plugging the bottoms of the templates by using mortar.
And (3) disassembling the template: the method comprises the steps of dismantling a formwork after concrete reaches strength, dismantling from top to bottom, dismantling a formwork angle pull rod 5 and a formwork transverse pull rod 4 at first, dismantling a formwork wedge-shaped back ridge positioning bolt 32, utilizing the characteristic that grease is used for reducing friction force between wedge-shaped steel back ridges 3, drawing out the wedge-shaped steel back ridges 3, dismantling the formwork bolt after the wedge-shaped steel back ridges 3 are dismantled, dismantling the inner formwork 2 and the double-column peripheral formwork 1 of the double-column expansion joint in sequence, and dismantling the formworks layer by layer according to the same dismantling steps.
After the double-column template is demolded, the original double-column expansion joint inner template 2 between the two columns is an obvious visible gap in the column forming effect diagram.
It will be understood that modifications and variations can be made by persons skilled in the art in light of the above teachings and all such modifications and variations are intended to be included within the scope of the invention as defined in the appended claims.
Claims (10)
1. The utility model provides a two synchronous construction tool formula templates of post of narrow movement joint department of big cross-section, its characterized in that includes:
a plurality of double-column peripheral templates (1) which are circumferentially spliced and enclose the peripheries of the double columns to form a hollow tetrahedron;
the expansion joint inner formwork (2) is vertically arranged between two parallel double-column peripheral formworks (1) and is positioned at a double-column gap after concrete is formed;
the wedge-shaped steel back ridges (3) are arranged at the tops of the expansion joint inner formworks (2) and are fixed between the two parallel double-column peripheral formworks (1);
the template transverse pull rod (4) is used for connecting two adjacent double-column peripheral templates (1) which are positioned on the same plane;
the formwork angle pull rod (5), the formwork connecting bolt (6) and the formwork edge sealing angle steel (7) are fixed and arranged between two adjacent double-column peripheral formworks (1) with the surfaces forming a right angle.
2. The double-column synchronous construction tool type formwork at the large-section narrow deformation joint according to claim 1, wherein the double-column peripheral formwork (1) comprises a first steel panel (11), a plurality of channel steel secondary ridges (12) arranged on the first steel panel (11) at vertical intervals, a plurality of double-spliced channel steel main ridges (13) arranged on the first steel panel (11) at transverse intervals, and a plate edge sealing steel plate (14) arranged on the plate surface and protruding outwards from the vertical two sides of the first steel panel (11); in the double-spliced channel steel main edge (13), the bottoms of two channel steels are connected and fixed and are transversely arranged perpendicular to the surface of the first steel panel (11); bolt holes are formed in the edge sealing steel plate (14) at a certain interval, and the edge sealing steel plate (14) is connected with the edge sealing angle steel (7) of the template through the bolt holes by a template connecting bolt (6).
3. The double-column synchronous construction tool type formwork at the large-section narrow deformation joint according to claim 1, wherein the first steel panel (11) and the secondary channel steel edge (12), the first steel panel (11) and the edge sealing steel plate (14), and the secondary channel steel edge (12) and the main double-spliced channel steel edge (13) are all connected in a welding manner.
4. The double-column synchronous construction tool type template at the large-section narrow deformation joint according to claim 1, wherein the expansion joint inner template (2) comprises a second steel panel (21) and a plurality of flat steel slideways (22) which are transversely arranged on the second steel panel (21) at intervals; the second steel panel (21) is welded with the flat steel slideway (22), bolt holes are formed in the two ends of the second steel panel (21) at a certain distance, and the second steel panel is connected and fixed with the edge sealing steel plate (14) through a template connecting bolt (6).
5. The double-column synchronous construction tool type template at the large-section narrow deformation joint according to claim 1, wherein the wedge-shaped steel back edge (3) comprises a wedge-shaped iron (31) and a positioning bolt (32) which are transversely arranged; wedge iron (31) includes that two vertical wedge faces splice each other for the wedge of rectangular hexahedron, and wedge iron (31) are whole to be placed on band steel slide (22), and two wedge are each other wedging, and the end passes through positioning bolt (32) to be fixed on twin columns peripheral form (1), makes whole template system form a whole.
6. The double-column synchronous construction tool type template at the large-section narrow deformation joint according to claim 1, wherein the transverse pull rod (4) of the template comprises two stressed steel plates (43) which are vertically arranged at two ends of a rod body of the connecting bolt (41) at intervals, and two parallel triangular plate stiffening ribs (42) are arranged on each stressed steel plate (43) towards the central line of the rod body; the stress steel plate (43) is provided with bolt holes, and the connecting bolts (41) pass through the bolt holes and connect and fix the two double-column peripheral templates (1) spliced into a plane at the position of the expansion joint.
7. The double-column synchronous construction tool type template at the large-section narrow deformation joint according to claim 1, wherein the template angle pull rod (5) comprises an angle connecting bolt (51) and two stress angle steels (52) arranged at two ends of the angle connecting bolt (51); a bolt hole is formed in a right-angle edge of the stress angle steel (52), and the oblique edge of the stress angle steel is connected with the double-spliced channel steel main edge (13) in a welding mode; the angle joint bolt (51) penetrates through a gap between the stressed double-spliced channel steel main edges (13) and a bolt hole of the stressed angle steel (52) to connect and fix the corner of the double-column peripheral template (1).
8. The double-column synchronous construction tool type formwork at the large-section narrow deformation joint according to claim 1, wherein bolt holes are formed in the formwork edge sealing angle steel (7) and the edge sealing steel plate (14) at intervals, and the formwork corner is fixedly connected with the double-column peripheral formwork (1) through a formwork connecting bolt (6).
9. A large-section narrow deformation joint double-column synchronous construction method is characterized in that the large-section narrow deformation joint double-column synchronous construction tool type template of any one of claims 1 to 8 is adopted;
firstly, installing a first-layer double-column peripheral template, fixing the first-layer double-column peripheral template with template edge sealing angle steel through template connecting bolts, and then installing an expansion joint inner template of the first layer, wherein the expansion joint inner template is connected with the double-column peripheral template through bolt holes on two sides by bolts, so that the displacement of the expansion joint inner template is prevented; after the expansion joint inner template is installed, pushing the wedge-shaped steel back ridges coated with butter in advance into a designed position along a flat steel slide way of the expansion joint inner template, and fixing the wedge-shaped steel back ridges through positioning bolts at two sides;
after primary reinforcement of the first-layer template is completed, mounting the template angle pull rod and the transverse pull rod; and (4) sequentially installing the templates on the second layer and the third layer according to the steps, adjusting the verticality of the templates after all the templates are installed, and plugging the bottoms of the templates by using mortar.
10. The method for synchronously constructing the double columns at the large-section narrow deformation joint according to claim 9, wherein when the formwork is required to be disassembled from top to bottom, the formwork angle pull rod and the formwork transverse pull rod are firstly disassembled, then the positioning bolts of the wedge-shaped back ridges of the formwork are disassembled, the wedge-shaped back ridges of the formwork are drawn out by utilizing the characteristic that the friction force between the wedge-shaped back ridges of the wedge-shaped steel is reduced by using grease, after the wedge-shaped back ridges of the wedge-shaped steel are completely disassembled, the formwork bolts are disassembled, the inner formwork and the outer formwork of the double columns of the expansion joint are sequentially disassembled, and the formwork is sequentially disassembled layer by layer according to the same disassembling steps.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211013468.5A CN115288436B (en) | 2022-08-23 | 2022-08-23 | Double-column synchronous construction tool type template at large-section narrow deformation joint and construction method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211013468.5A CN115288436B (en) | 2022-08-23 | 2022-08-23 | Double-column synchronous construction tool type template at large-section narrow deformation joint and construction method |
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| CN115288436A true CN115288436A (en) | 2022-11-04 |
| CN115288436B CN115288436B (en) | 2023-06-06 |
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|---|---|---|---|---|
| WO2004113645A1 (en) * | 2003-06-23 | 2004-12-29 | Peter Bilowol | Formwork systems |
| CN202000661U (en) * | 2011-01-17 | 2011-10-05 | 中建八局第三建设有限公司 | Large-section super-high steel-rib bare-concrete double-column construction mould plate |
| CN110439265A (en) * | 2019-08-23 | 2019-11-12 | 重庆建工第三建设有限责任公司 | Bilateral column or wall method for synchronously constructing at a kind of narrow expansion joint |
| CN113389373A (en) * | 2021-07-14 | 2021-09-14 | 中国建筑第八工程局有限公司 | Double-column formwork reinforcing device at deformation joint and construction method thereof |
| CN214995980U (en) * | 2020-12-25 | 2021-12-03 | 上海二十冶建设有限公司 | Template device for synchronous construction of double columns at expansion joint part of frame structure factory building |
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2022
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