CN111424972A - Method and structure for reinforcing ultra-large type steel concrete beam side mold - Google Patents
Method and structure for reinforcing ultra-large type steel concrete beam side mold Download PDFInfo
- Publication number
- CN111424972A CN111424972A CN202010301465.6A CN202010301465A CN111424972A CN 111424972 A CN111424972 A CN 111424972A CN 202010301465 A CN202010301465 A CN 202010301465A CN 111424972 A CN111424972 A CN 111424972A
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- side mold
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- hook
- concrete beam
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 149
- 239000010959 steel Substances 0.000 title claims abstract description 149
- 239000004567 concrete Substances 0.000 title claims abstract description 45
- 230000003014 reinforcing effect Effects 0.000 title claims abstract description 33
- 238000000034 method Methods 0.000 title claims abstract description 24
- 238000010276 construction Methods 0.000 claims abstract description 25
- 230000002787 reinforcement Effects 0.000 claims abstract description 13
- 238000003466 welding Methods 0.000 claims description 8
- 239000002023 wood Substances 0.000 claims description 7
- 239000002893 slag Substances 0.000 claims description 4
- 229910000746 Structural steel Inorganic materials 0.000 claims description 3
- 230000002146 bilateral effect Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 2
- 238000007796 conventional method Methods 0.000 abstract description 3
- 238000009415 formwork Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000011150 reinforced concrete Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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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
- E04G13/00—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills
- E04G13/04—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills for lintels, beams, or transoms to be encased separately; Special tying or clamping means therefor
Abstract
The invention discloses a method and a structure for reinforcing a side mold of an ultra-large type steel concrete beam. The large-diameter steel bar cross rod is welded on the steel beam stud, and one end of the specially-made hooked screw rod hooks the large-diameter steel bar cross rod; the other end is fastened on the outer side of the main keel steel pipe of the beam side mold through a fixing bolt to finish the reinforcement of the steel concrete beam side mold. The invention solves the construction problem that the conventional method for reinforcing the side die of the beam cannot meet the reinforcing requirement of the oversized steel concrete beam. The potential safety hazard during construction is eliminated, and the construction safety, quality and work efficiency of the oversized steel concrete beam structure are fundamentally ensured. The invention has the characteristics of simple structure, safe and convenient construction, time saving and labor saving.
Description
Technical Field
The invention relates to a method and a structure for reinforcing a side mold of an ultra-large type steel concrete beam, belonging to the technical field of building construction.
Background
In recent years, the steel-concrete composite beam has been more and more widely applied to the building structure in China, has the advantages of both a steel structure and a concrete structure, and has obvious technical and economic benefits; the steel reinforced concrete beam is the most common structural form, has the advantages of large bearing capacity, large rigidity and the like, and has larger cross section size relative to the beam and larger construction load; however, a proper method for reinforcing the beam-side mold is lacked in construction, the conventional method for reinforcing the through-mold and counter-pull screw cannot be applied to a steel reinforced concrete beam (the counter-pull screw cannot penetrate through a steel beam web to form effective pulling connection and fixation), the beam-side mold cannot bear lateral pressure generated in concrete pouring, and serious potential safety hazards exist.
Disclosure of Invention
The invention aims to provide a method and a structure for reinforcing a side mold of an ultra-large type steel concrete beam, which have simple construction process, are safe and reliable, can save the formwork supporting procedure and shorten the construction period. Meanwhile, a large amount of manpower and material investment is saved, and weak links in the construction of the steel concrete beam formwork support system are strengthened. The construction problem of reinforcing the ultra-large type steel concrete beam side mold is effectively solved, and the defects of the prior art are overcome.
In order to achieve the purpose, the invention provides the following technical scheme:
a method for reinforcing a side mold of an ultra-large type steel concrete beam comprises the following steps:
the method comprises the following steps: finishing the positioning placement and installation of the prefabricated steel beam according to the site engineering construction drawing, and welding the steel beam stud on the prefabricated steel beam according to the construction drawing;
step two: manufacturing a large-diameter steel bar cross bar with the same span as that of the prefabricated steel beam, and requiring the large-diameter steel bar cross bar to be horizontally placed on the single-row steel beam stud bolts to ensure stable and reliable placement; and is welded and fixed with the stud of the section steel beam, and the welding seam is required to be full and has no slag inclusion; the distance arrangement of the large-diameter steel bar cross rods 1 is controlled by times according to the distance of the structural steel beam studs along the height direction of the beam; the arrangement quantity of the large-diameter steel bar cross rods and the distance between the cross rods ensure the reinforcement requirement of the steel concrete beam;
step three: building an ultra-large steel-concrete beam side mold supporting system according to a construction scheme and a standard requirement, firstly paving and installing a steel-concrete beam template, then building secondary square beams according to the scheme requirement and the scheme requirement according to a conventional beam side mold construction process, and then erecting a main keel double steel pipe along the beam span direction to preliminarily complete the reinforcement of the steel-concrete beam side mold;
step four: preparing a special screw rod with a hook, wherein a special hook is arranged at one end of the special screw rod with the hook; the other end is a fixing bolt;
step five: a specially-made screw rod with a hook is used, the welded large-diameter steel bar cross rod is hooked in the direction of the hook, and the other end of the special-made screw rod extends out of a gap between a secondary square timber and a main keel steel pipe from a beam single-side template; then, mounting a fixing bolt, and adjusting and screwing the fixing bolt to fasten the fixing bolt on the outer side of the main keel steel pipe; the number of the specially-made hooked screws is determined according to the height and the span of the beam, the distance in the height direction of the beam is the same as that of the large-diameter steel bar cross rod, the distance in the span direction of the beam is the same as that of the main keel steel tube, when the special-made hooked screws are installed, the special-made hooked screws are guaranteed to be tightly hooked with the large-diameter steel bar cross rod to have enough reinforcing tension, and the fixing bolts are locked with the main keel steel tube without gaps; after the special screw with the hook is installed, the reinforcing of the side mold of the single-side oversized steel concrete beam mold is completed;
step five: and (3) constructing the other side steel concrete beam side mold according to the process, namely finishing the reinforcement of the whole oversized steel concrete beam side mold.
The utility model provides an ultra-large-scale steel concrete beam side form reinforced structure, include shaped beam steel form and lie in the prefabricated shaped steel roof beam in the beam steel form, set gradually inferior stupefied wooden tree and main joist steel pipe at shaped beam steel form dorsal part, the bilateral symmetry of prefabricated shaped steel roof beam web sets up the multirow girder steel peg, fixedly set up the major diameter reinforcing bar horizontal pole on every row of girder steel peg, set up the counter-pulling hole on the shaped beam steel form on the same horizontal plane with major diameter reinforcing bar horizontal pole, purpose-made screw rod with hook passes to hang after the counter-pulling hole and detains on the major diameter reinforcing bar horizontal pole that corresponds and fix each other, the other end of screw rod with hook passes through fixing bolt and the taut cooperation of shaped beam steel form.
Compared with the prior art, the invention replaces the traditional process of reinforcing the side form, solves the construction problem that the through-die counter-pulling screw cannot pass through the section steel beam for reinforcement, solves the defects of huge loss of reinforcing materials, high labor cost, expansion of reinforcing failure and slurry leakage of the reinforcing failure of the existing section steel concrete beam side form, eliminates the potential safety hazard during construction, and fundamentally ensures the construction safety, quality and work efficiency of the oversized section steel concrete beam structure.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a top view of the structural diagram of the present invention;
FIG. 3 is a side elevational view of the structural diagram of the present invention;
figure 4 is an internal view of the steel concrete girder according to the present invention;
fig. 5 is a schematic view of a special screw structure with a hook.
Description of the drawings: 1-large-diameter steel bar cross bar, 2-special screw rods with hooks, 3-shaped steel beam studs, 4-prefabricated steel beams, 5-main keel steel pipes, 6-secondary corrugated wood beams, 7-fixing bolts, 8-beam steel templates and 9-counter-pulling holes.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, the present invention provides a technical solution:
a method for reinforcing a side mold of an ultra-large type steel concrete beam comprises the following steps:
the method comprises the following steps: positioning, placing and installing the prefabricated section steel beam 4 according to a site engineering construction drawing, and welding the section steel beam stud 3 on the prefabricated section steel beam 4 according to the construction drawing;
step two: manufacturing a large-diameter steel bar cross rod 1 with the same span as that of the prefabricated section steel beam 4, and requiring the large-diameter steel bar cross rod 1 to be horizontally placed on the single-row section steel beam stud 3 to ensure the stable and reliable placement of the large-diameter steel bar cross rod 1; and is welded and fixed with the section steel beam stud 3, and the welding seam is required to be full and has no slag inclusion; the distance arrangement of the large-diameter steel bar cross rods 1 is controlled by the distance (n + 1) times of the structural steel beam stud 3 along the height direction of the beam; the arrangement quantity and the distance between the large-diameter steel bar cross rods 1 ensure the reinforcement requirement of the steel concrete beam;
step three: building an ultra-large steel-concrete beam side mold supporting system according to a construction scheme and a standard requirement, firstly paving and installing a steel-concrete beam template, then building secondary corrugated wood purlins 6 according to a scheme requirement interval according to a conventional beam side mold construction process, and then erecting a main keel double steel pipe 5 along the beam span direction to preliminarily complete the reinforcement of the steel-concrete beam side mold;
step four: preparing a specially-made screw rod 2 with a hook, wherein one end of the specially-made screw rod with the hook is a specially-made hook; the other end is provided with a fixed bolt 7;
step five: a specially-made screw rod 2 with a hook is used, the welded large-diameter steel bar cross rod 3 is hooked in the hook direction, and the other end of the special-made screw rod extends out of a gap between a secondary square timber 6 and a main keel steel pipe 5 from a beam single-side template; then, a fixing bolt 7 is installed, and the screwing fixing bolt 7 is adjusted to be fastened on the outer side of the main keel steel tube 5; the number of the specially-made hooked screws 2 is determined according to the height and the span of the beam, the distance in the height direction of the beam is the same as that of the large-diameter steel bar cross rod 3, the distance in the span direction of the beam is the same as that of the main keel steel tube 5, when the special-made hooked screws 2 are installed, the special-made hooked screws 2 are tightly hooked with the large-diameter steel bar cross rod 3 to have enough reinforcing tension, and the fixing bolts 7 are locked with the main keel steel tube 5 without gaps; after the special hooked screw 2 is installed, the reinforcing of the single-side oversized steel concrete beam mould side mould is completed;
step five: and (3) constructing the other side steel concrete beam side mold according to the process, namely finishing the reinforcement of the whole oversized steel concrete beam side mold.
According to the ultra-large steel concrete beam side form reinforced structure that above-mentioned method formed, including shaped beam steel form 8 with be located the prefabricated shaped steel roof beam 4 in the beam steel form 8, set gradually inferior stupefied wood 6 and main joist steel pipe 5, its characterized in that at shaped beam steel form 8 dorsal part: 4 web bilateral symmetry at prefabricated shaped steel roof beam sets up multirow girder steel toggle pin 3, fixes on every row of girder steel toggle pin 3 and sets up major diameter reinforcing bar horizontal pole 1, with set up on the shaped beam steel form 8 on the same horizontal plane of major diameter reinforcing bar horizontal pole 1 to drawing the hole 9, specially-made take hook screw rod 2 pass to draw the hole 9 after hang and detain on corresponding major diameter reinforcing bar horizontal pole 1 and fixed each other, take hook screw rod 2's the other end to pass through fixing bolt 7 and the taut cooperation of shaped beam steel form 8.
The large-diameter steel bar cross rod is horizontally erected above the steel beam single-row studs and is connected with the steel beam studs in a welding mode, and welding seams are full and free of slag inclusion; the length of the steel bar cross rod is set according to the span length of the section steel beam, and the longitudinal distance is set by (n + 1) times according to the distance of the stud along the beam height direction according to the reinforcement requirement.
The profiled beam steel formwork supporting system uses wood purlin back secondary ridges and secondary ridges upper back steel pipes as main keels according to a conventional method.
One end of the special screw rod with the hook is provided with a special hook, and the other end of the special screw rod with the hook is provided with a fixing bolt.
The special hooked screw rod hooks the welded large-diameter steel bar cross rod in the direction of the hook, and the other end of the special hooked screw rod hooks the welded large-diameter steel bar cross rod, and extends out of a gap between the secondary corrugated wood purlin of the beam single-side template and the main keel steel pipe. And then adjusting fixing bolts to be fastened on the outer sides of the main keel steel pipes, arranging special hooked screw rods along the beam span direction according to the steel pipe main keel space, ensuring that the space between the special hooked screw rods and the large-diameter steel bar cross rod is the same as that between the special hooked screw rods and the large-diameter steel bar cross rod, ensuring that the hook of each screw rod is hooked with the large-diameter steel bar cross rod in use, tightening the fixing bolts and the steel pipes without gaps, and ensuring that each special hooked screw rod has enough reinforcing tension for opposite pulling and locking, namely finishing the reinforcement of the single-side mold of.
The method for reinforcing the steel concrete beam side mold on the other side is implemented according to the process, and the whole ultra-large steel concrete beam side mold is reinforced.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (2)
1. A method for reinforcing a side mold of an ultra-large type steel concrete beam is characterized by comprising the following steps:
the method comprises the following steps: positioning, placing and installing the prefabricated section steel beam (4) according to a site engineering construction drawing, and welding the section steel beam stud (3) on the prefabricated section steel beam (4) according to the construction drawing;
step two: manufacturing a large-diameter steel bar cross rod (1) with the same span as that of the prefabricated section steel beam (4), and requiring the large-diameter steel bar cross rod (1) to be horizontally placed on the single-row section steel beam stud (3) to ensure the stable and reliable placement of the large-diameter steel bar cross rod; and is welded and fixed with the section steel beam stud (3) and requires full welding line without slag inclusion; the distance arrangement of the large-diameter steel bar cross rods 1 is controlled by the distance (n + 1) times along the height direction of the beam according to the structural steel beam studs (3); the arrangement quantity and the distance between the large-diameter steel bar cross rods (1) ensure the reinforcement requirement of the steel concrete beam;
step three: building an ultra-large steel-concrete beam side mold supporting system according to a construction scheme and a standard requirement, firstly paving and installing a steel-concrete beam template, then building secondary corrugated wood purlins (6) according to a scheme requirement interval according to a conventional beam side mold construction process, and then erecting a main keel double steel pipe (5) along the beam span direction to preliminarily complete the reinforcement of the steel-concrete beam side mold;
step four: preparing a special screw rod (2) with a hook, wherein one end of the special screw rod with the hook is a special hook; the other end is a fixed bolt (7);
step five: a specially-made screw rod (2) with a hook is used, the welded large-diameter steel bar cross rod (3) is hooked in the direction of the hook, and the other end of the special-made screw rod extends out of a gap between a secondary corrugated wood square column (6) and a main keel steel pipe (5) from a beam single-side template; then, a fixing bolt (7) is installed, and the screwing fixing bolt (7) is adjusted to be fastened on the outer side of the main keel steel tube (5); the number of the special hooked screws (2) is determined according to the height and the span of the beam, the distance along the height direction of the beam is the same as that of the large-diameter steel bar cross rod (3), the distance along the span direction of the beam is the same as that of the main keel steel tube (5), enough reinforcing tension is guaranteed when each special hooked screw (2) is tightly hooked with the large-diameter steel bar cross rod (3) during installation, and the fixing bolt (7) is locked with the main keel steel tube (5) without a gap; after the special screw rod (2) with the hook is installed, the reinforcing of the side mold of the single-side oversized steel concrete beam mold is completed;
step five: and (3) constructing the other side steel concrete beam side mold according to the process, namely finishing the reinforcement of the whole oversized steel concrete beam side mold.
2. The utility model provides an ultra-large-scale steel concrete roof beam side form reinforced structure, includes shaped beam steel form (8) and is located prefabricated shaped steel roof beam (4) in roof beam steel form (8), sets gradually inferior stupefied wooden tree (6) and main joist steel pipe (5) in shaped beam steel form (8) dorsal part, its characterized in that: the prefabricated section steel beam (4) web bilateral symmetry sets up multirow girder steel toggle bolt (3), fixedly set up major diameter reinforcing bar horizontal pole (1) on every row girder steel toggle bolt (3), set up on the section beam steel form (8) on the same horizontal plane with major diameter reinforcing bar horizontal pole (1) counter-pull hole (9), purpose-made take hook screw rod (2) pass behind counter-pull hole (9) hang the knot on major diameter reinforcing bar horizontal pole (1) that corresponds and fix each other, the other end of take hook screw rod (2) passes through fixing bolt (7) and the taut cooperation of section beam steel form (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010301465.6A CN111424972A (en) | 2020-04-16 | 2020-04-16 | Method and structure for reinforcing ultra-large type steel concrete beam side mold |
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| CN202010301465.6A CN111424972A (en) | 2020-04-16 | 2020-04-16 | Method and structure for reinforcing ultra-large type steel concrete beam side mold |
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| CN111424972A true CN111424972A (en) | 2020-07-17 |
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| CN202010301465.6A Pending CN111424972A (en) | 2020-04-16 | 2020-04-16 | Method and structure for reinforcing ultra-large type steel concrete beam side mold |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114232993A (en) * | 2021-12-07 | 2022-03-25 | 中建八局南方建设有限公司 | Multi-directional adjustable sleeve device for aluminum mould of steel reinforced concrete member and construction method |
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| CN207131081U (en) * | 2017-08-04 | 2018-03-23 | 福建建工集团有限责任公司 | A kind of girder with rolled steel section en cased in concrete water stopping type Screw arbor with nut at both-ends |
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| CN109853943A (en) * | 2017-11-30 | 2019-06-07 | 中国二十冶集团有限公司 | Composite steel concrete column distributing bar constructing device and its application method |
| CN110552501A (en) * | 2019-08-30 | 2019-12-10 | 中国一冶集团有限公司 | High-space large-span steel reinforced concrete structure beam hanging formwork construction reinforcing structure and construction method thereof |
| CN213597494U (en) * | 2020-04-16 | 2021-07-02 | 中国建筑第四工程局有限公司 | Ultra-large type reinforced structure for steel concrete beam side mould |
-
2020
- 2020-04-16 CN CN202010301465.6A patent/CN111424972A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103114681A (en) * | 2013-03-05 | 2013-05-22 | 中国建筑第八工程局有限公司 | To-be-poured structure and construction method of high-altitude large-span reinforced concrete beam |
| CN203613796U (en) * | 2013-12-20 | 2014-05-28 | 江西建工第二建筑有限责任公司 | Recoverable eave tile bolt formwork system of steel-reinforced concrete column |
| CN206769195U (en) * | 2017-05-10 | 2017-12-19 | 中建二局第二建筑工程有限公司 | Tension rib exempts from the shaped steel crossed and Steel Reinforced Concrete Beams |
| CN207131081U (en) * | 2017-08-04 | 2018-03-23 | 福建建工集团有限责任公司 | A kind of girder with rolled steel section en cased in concrete water stopping type Screw arbor with nut at both-ends |
| CN109853943A (en) * | 2017-11-30 | 2019-06-07 | 中国二十冶集团有限公司 | Composite steel concrete column distributing bar constructing device and its application method |
| CN208280453U (en) * | 2018-03-29 | 2018-12-25 | 中国二十冶集团有限公司 | Girder with rolled steel section en cased in concrete lacing wire constructing device |
| CN110552501A (en) * | 2019-08-30 | 2019-12-10 | 中国一冶集团有限公司 | High-space large-span steel reinforced concrete structure beam hanging formwork construction reinforcing structure and construction method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114232993A (en) * | 2021-12-07 | 2022-03-25 | 中建八局南方建设有限公司 | Multi-directional adjustable sleeve device for aluminum mould of steel reinforced concrete member and construction method |
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