CN111335546B - Construction method for binding special-shaped variable-section cylindrical steel bars - Google Patents
Construction method for binding special-shaped variable-section cylindrical steel bars Download PDFInfo
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- CN111335546B CN111335546B CN202010164326.3A CN202010164326A CN111335546B CN 111335546 B CN111335546 B CN 111335546B CN 202010164326 A CN202010164326 A CN 202010164326A CN 111335546 B CN111335546 B CN 111335546B
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- longitudinal main
- steel bar
- binding
- reinforcement
- stirrups
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
- E04C5/06—Reinforcing elements of metal, e.g. with non-structural coatings of high bending resistance, i.e. of essentially three-dimensional extent, e.g. lattice girders
- E04C5/0604—Prismatic or cylindrical reinforcement cages composed of longitudinal bars and open or closed stirrup rods
- E04C5/0609—Closed cages composed of two or more coacting cage parts, e.g. transversally hinged or nested parts
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/16—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups
- E04C5/20—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups of material other than metal or with only additional metal parts, e.g. concrete or plastics spacers with metal binding wires
- E04C5/203—Circular and spherical spacers
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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
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/12—Mounting of reinforcing inserts; Prestressing
- E04G21/122—Machines for joining reinforcing bars
- E04G21/123—Wire twisting tools
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Reinforcement Elements For Buildings (AREA)
Abstract
The invention discloses a binding construction method of a special-shaped variable-section columnar steel bar, which comprises the steps of establishing a concrete structure three-dimensional model, guiding out a steel bar construction drawing, carrying out positioning and paying-off of a longitudinal main steel bar according to the steel bar construction drawing, installing the longitudinal main steel bar, adjusting the curvature of the longitudinal main steel bar according to the change condition of the section of a concrete structure in the construction drawing along with elevation, sleeving a square closed stirrup in an inclined column core area on the longitudinal main steel bar in the inclined column core area, and sleeving an inclined column outline opening stirrup on the longitudinal main steel bar in the inclined column outline area. The invention solves the problem of difficult stirrup binding caused by the dense irregular variable-section steel bars, and ensures the accurate positioning and over-quality of steel bar installation. The waste of manpower and materials is reduced, the installation difficulty is effectively reduced, the construction period cost is saved, and the installation quality is ensured. Provides a new idea for solving the difficult problem of binding the same type of special-shaped variable-section cylindrical steel bars.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to a construction method for binding special-shaped variable-section columnar steel bars.
Background
Along with the development of the times, the requirements of buildings are changed from practical to beautiful and practical, and the requirements on shapes are higher and higher on the premise of ensuring the practicability. As a result, the molded concrete structure is more common in life. Even a curved concrete structure, the concrete structure has extremely high requirements for binding reinforcing steel bars.
How to effectively and economically finish the binding work of the special-shaped variable-section cylindrical steel bars and reasonably organize the construction procedures and the flow to achieve the purpose of saving the cost becomes the problem to be solved.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, provides a construction method for binding special-shaped variable-section columnar steel bars, solves the problem of difficult binding of stirrups caused by the dense special-shaped variable-section steel bars, and ensures the accurate and in-place installation of the steel bars.
In order to achieve the purpose, the invention adopts the technical scheme that: a construction method for binding a special-shaped variable-section cylindrical steel bar comprises the following steps:
building a concrete structure three-dimensional model, and deriving a steel bar construction drawing;
positioning and paying-off of a longitudinal main reinforcement are carried out according to the steel bar construction drawing, and the longitudinal main reinforcement is installed;
adjusting the curvature of the longitudinal main reinforcement according to the change condition of the section of the concrete structure along with the elevation in the construction drawing;
sleeving a square closed hoop in the core area of the batter post on a longitudinal main rib in the core area of the batter post;
sleeving an inclined column profile opening stirrup on a longitudinal main rib in an inclined column profile area;
performing sleeve connection and installation work on the longitudinal main reinforcement;
arranging the stirrups according to the row spacing of the closed stirrups and the open stirrups, and fixing the stirrups in the longitudinal direction after the stirrups are arranged in place;
binding non-node tie bars in non-crossed node areas of the longitudinal main bars;
and binding node lacing wires in the crossed node areas of the longitudinal main ribs.
Optionally, the step of deriving the steel bar construction drawing includes: and reversely deriving a node detailed diagram of the required structural profile and a reinforcement detailed diagram of any section of the concrete structure through the three-dimensional model, determining the array pitch and the shape of the longitudinal main reinforcement, the closed stirrups, the open stirrups, the construction reinforcement, the node area vertical reinforcement, the node area horizontal stirrups and the tie bars, and assisting lofting processing work.
Optionally, the step of adjusting the curvature of the longitudinal main rib includes: according to the change condition of the section of the concrete structure along with elevation in a construction drawing, firstly, the curvature of the reserved longitudinal steel bar at the lower part is adjusted according to the longitudinal curvature of the concrete structure.
Optionally, the step of sleeving the square closed stirrup in the batter post core area on the longitudinal main rib in the batter post core area further includes the following steps before the step of performing: according to the change of the shape of the cross section of the concrete, lofting processing is carried out on the forms of the square closed stirrups in the core area of the batter post and the open stirrups in the outline of the batter post.
Optionally, before the step of binding the node tie bars in the cross node area of the longitudinal main bar is performed, the method further includes the following steps: and installing node area vertical reinforcing ribs and node area horizontal stirrups in the inclined column cross node areas of the longitudinal main ribs.
Optionally, the reinforcement bar binding construction method further includes the steps of: and reinforcing steel bar protective layer gaskets are arranged on the longitudinal main reinforcements and the stirrups.
Optionally, the step of installing the sleeve connection of the longitudinal main rib further includes the following steps after the step of installing the sleeve connection of the longitudinal main rib is executed:
mounting modeling structural ribs on the longitudinal main ribs;
and installing an open type circular plastic gasket on the modeling construction rib.
Due to the adoption of the technical scheme, the invention has the following beneficial effects: the problem of the stirrup ligature difficulty that the intensive messenger of heterotypic variable cross section reinforcing bar caused is solved, the accurate position that arrives of having ensured the reinforcing bar installation, the quality is passed. The waste of manpower and materials is reduced, the installation difficulty is effectively reduced, the construction period cost is saved, and the installation quality is ensured. Provides a new idea for solving the difficult problem of binding the same type of special-shaped variable-section cylindrical steel bars.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic flow chart of a construction method for binding reinforcing steel bars of a special-shaped variable-section cylindrical body;
FIG. 2 is a schematic diagram illustrating a construction of a concrete batter post standard section steel bar according to an embodiment of the present invention;
fig. 3 shows a schematic diagram of a reinforcement structure of a node region of a concrete batter post according to an embodiment of the present invention.
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention.
The invention is described in further detail below with reference to the figures and specific embodiments.
The invention discloses a construction method for binding a special-shaped variable-section cylindrical steel bar, which comprises the following steps of:
s1: building a concrete structure three-dimensional model, and deriving a steel bar construction drawing;
s2: positioning and paying-off of a longitudinal main reinforcement are carried out according to the steel bar construction drawing, and the longitudinal main reinforcement is installed;
s3: adjusting the curvature of the longitudinal main reinforcement according to the change condition of the section of the concrete structure along with the elevation in the construction drawing;
s4: sleeving a square closed hoop in the core area of the batter post on a longitudinal main rib in the core area of the batter post;
s5: sleeving an inclined column profile opening stirrup on a longitudinal main rib in an inclined column profile area;
s6: performing sleeve connection and installation work on the longitudinal main reinforcement;
s7: arranging the stirrups according to the row spacing of the closed stirrups and the open stirrups, and fixing the stirrups in the longitudinal direction after the stirrups are arranged in place;
s8: binding non-node tie bars in non-crossed node areas of the longitudinal main bars;
s9: and binding node lacing wires in the crossed node areas of the longitudinal main ribs.
Referring to fig. 2 and 3, the batter post variable cross-section steel bar system 1 is an irregular multi-curvature complex woven steel bar mesh, and includes a longitudinal main bar 11, a batter post core area square closed hoop 12, a batter post outline open hoop 13, a modeling structural bar 14, a node area vertical reinforcing bar 15, a node area horizontal hoop 16, a tie bar 17, and a steel bar protection layer gasket 18 made of cement of the same label.
In order to accurately finish the lofting work of the special-shaped variable-section columnar steel bars, a three-dimensional model of a reinforced concrete structure is drawn by combining design data, a node detailed graph of a required structural outline is reversely derived through the three-dimensional model, the required nodes are sectioned out of the three-dimensional model, and the row spacing, the shape and the like of a longitudinal main rib 11, a batter post core area square closed stirrup 12, a batter post outline opening stirrup 13, a modeling construction rib 14, a node area vertical reinforcing rib 15, a node area horizontal stirrup 16 and a tie bar 17 in the batter post variable-section steel bar system 2 are determined. And the position of each longitudinal main reinforcement 11 is accurately marked on the template, so that the accurate row spacing of the reinforcements is guaranteed. Wherein the camber of vertical main muscle 11 and the square closed stirrup 12 in batter post core area, the form and the size of batter post profile opening stirrup 13 constantly change along with the elevation, and vertical main muscle 11 needs carry out with the camber bending according to vertical camber, and the square closed stirrup 12 in batter post core area, the form of batter post profile opening stirrup 13 need be according to cross-sectional shape lofting processing.
For satisfying the on-the-spot installation condition, because closed stirrup receives the space restriction great, so closed stirrup installation is prior to the opening stirrup, the structure muscle is prior to the molding muscle, non-node district reinforcing bar is prior to node district reinforcing bar, according to the variable cross section profile molding, factor such as the space restriction that leads to the fact after considering heavily main muscle and stirrup installation completion, the installation lacing wire after the framework of steel reinforcement forms, only need buckle the both ends of lacing wire when owing to the installation lacing wire and establish on the vertical main muscle 11 in the outside, or collude it through the couple and establish on the vertical main muscle 11 in the outside, receive the less facilitate the installation of space restriction influence, consequently receive the less lacing wire 17 final installation of space restriction.
The steps of binding the stirrups according to the construction drawing of the steel bars are as follows: the construction process and the site working condition are fully considered, the curvature of the reserved longitudinal main reinforcement 11 at the lower part is adjusted in a non-node area, and the consistency with the integral radian is ensured; referring to a detailed reinforcement distribution diagram obtained from a three-dimensional model, considering the row spacing, sequentially carrying out primary installation of a square closed stirrup 12 and an inclined column outline open stirrup 13 in an inclined column core area, installing a reinforcing steel bar protective layer gasket 18 made of cement with the same label, and then carrying out sleeve connection installation work of an upper longitudinal main reinforcement 11; furthermore, the stirrup is integrally sleeved on the main reinforcement in the installation sequence of the stirrups, and after the main reinforcement is mechanically connected, the stirrups are sequentially arranged according to the stirrup arrangement distance, so that the installation precision of the stirrups is guaranteed, and the molding requirement of the special-shaped variable-section columnar reinforcement binding is met. In addition, molding lines such as lamp grooves are arranged on the surface of the concrete, so molding construction ribs need to be arranged, and open type circular plastic gaskets are arranged along the molding construction ribs to ensure the thickness of the protective layer; and finally, performing lacing wire binding work.
The step of lacing wire binding comprises the following steps: firstly, binding non-node tie bars in non-crossed node areas of longitudinal main ribs of the batter post, and sequentially binding and installing vertical reinforcing ribs 15 in node areas, horizontal stirrups 16 in the node areas and the node tie bars at crossed nodes of the batter post of the longitudinal main ribs.
It should be noted that the structures, ratios, sizes, and the like shown in the drawings attached to the present specification are only used for matching the disclosure of the present specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions of the present invention, so that the present invention has no technical essence, and any structural modification, ratio relationship change, or size adjustment should still fall within the scope of the present invention without affecting the efficacy and the achievable purpose of the present invention. In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not to be construed as a scope of the present invention.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (7)
1. A construction method for binding a special-shaped variable-section cylindrical steel bar is characterized by comprising the following steps: the method comprises the following steps:
building a concrete structure three-dimensional model, and deriving a steel bar construction drawing;
positioning and paying-off of a longitudinal main reinforcement are carried out according to the steel bar construction drawing, and the longitudinal main reinforcement is installed;
adjusting the curvature of the longitudinal main reinforcement according to the change condition of the section of the concrete structure along with the elevation in the construction drawing;
sleeving a square closed hoop in the core area of the batter post on a longitudinal main rib in the core area of the batter post;
sleeving an inclined column profile opening stirrup on a longitudinal main rib in an inclined column profile area;
performing sleeve connection and installation work on the longitudinal main reinforcement;
arranging the stirrups according to the row spacing of the closed stirrups and the open stirrups, and fixing the stirrups in the longitudinal direction after the stirrups are arranged in place;
binding non-node tie bars in non-crossed node areas of the longitudinal main bars;
and binding node lacing wires in the crossed node areas of the longitudinal main ribs.
2. The construction method for binding the reinforcement of the special-shaped variable-section cylindrical body according to claim 1, wherein: the step of deriving the construction drawing of the steel bar comprises the following steps: and reversely deriving a node detailed diagram of the required structural profile and a reinforcement detailed diagram of any section of the concrete structure through the three-dimensional model, determining the array pitch and the shape of the longitudinal main reinforcement, the closed stirrups, the open stirrups, the construction reinforcement, the node area vertical reinforcement, the node area horizontal stirrups and the tie bars, and assisting lofting processing work.
3. The construction method for binding the reinforcement of the special-shaped variable-section cylindrical body according to claim 1, wherein: the step of adjusting the curvature of the longitudinal main rib comprises the following steps: according to the change condition of the section of the concrete structure along with elevation in a construction drawing, firstly, the curvature of the reserved longitudinal steel bar at the lower part is adjusted according to the longitudinal curvature of the concrete structure.
4. The construction method for binding the reinforcement of the special-shaped variable-section cylindrical body according to claim 3, wherein: the step of sleeving the longitudinal main rib in the batter post core area with the square closed stirrup in the batter post core area further comprises the following steps before the step of executing: according to the change of the shape of the cross section of the concrete, lofting processing is carried out on the forms of the square closed stirrups in the core area of the batter post and the open stirrups in the outline of the batter post.
5. The construction method for binding the reinforcement of the special-shaped variable-section cylindrical body according to claim 1, wherein: the method also comprises the following steps before the step of binding the node lacing wires in the crossed node area of the longitudinal main rib is executed: and installing node area vertical reinforcing ribs and node area horizontal stirrups in the inclined column cross node areas of the longitudinal main ribs.
6. The construction method for binding the reinforcement of the special-shaped variable-section cylindrical body according to claim 1, wherein: the steel bar binding construction method also comprises the following steps: and reinforcing steel bar protective layer gaskets are arranged on the longitudinal main reinforcements and the stirrups.
7. The construction method for binding the reinforcement of the special-shaped variable-section cylindrical body according to claim 1, wherein: the method also comprises the following steps after the step of connecting and installing the sleeves of the longitudinal main ribs is executed:
mounting modeling structural ribs on the longitudinal main ribs;
and installing an open type circular plastic gasket on the modeling construction rib.
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| CN202010164326.3A CN111335546B (en) | 2020-03-11 | 2020-03-11 | Construction method for binding special-shaped variable-section cylindrical steel bars |
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| CN202010164326.3A CN111335546B (en) | 2020-03-11 | 2020-03-11 | Construction method for binding special-shaped variable-section cylindrical steel bars |
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| CN111335546B true CN111335546B (en) | 2021-06-11 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102061748A (en) * | 2010-11-30 | 2011-05-18 | 哈尔滨工业大学 | High-strength concrete facade cross node constrained by steel mould containing steel reinforcement framework |
| CN103526930A (en) * | 2013-10-14 | 2014-01-22 | 成军 | Multi-directional intersection reinforced bare concrete inclined column construction method |
| CN105332510A (en) * | 2015-11-12 | 2016-02-17 | 徐仁贵 | Construction method of complicated beam column joint core area |
| CN105625187A (en) * | 2015-12-31 | 2016-06-01 | 浙江舜杰建筑集团股份有限公司 | Method for constructing concrete for large-section inclined column |
| CN106245852A (en) * | 2016-09-24 | 2016-12-21 | 龙元建设集团股份有限公司 | Abnormity concrete counterfort reinforcing bar localization method |
| CN110005075A (en) * | 2019-04-03 | 2019-07-12 | 江苏中原建设集团有限公司 | A kind of construction method of strengthening concrete bean column node |
-
2020
- 2020-03-11 CN CN202010164326.3A patent/CN111335546B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102061748A (en) * | 2010-11-30 | 2011-05-18 | 哈尔滨工业大学 | High-strength concrete facade cross node constrained by steel mould containing steel reinforcement framework |
| CN103526930A (en) * | 2013-10-14 | 2014-01-22 | 成军 | Multi-directional intersection reinforced bare concrete inclined column construction method |
| CN105332510A (en) * | 2015-11-12 | 2016-02-17 | 徐仁贵 | Construction method of complicated beam column joint core area |
| CN105625187A (en) * | 2015-12-31 | 2016-06-01 | 浙江舜杰建筑集团股份有限公司 | Method for constructing concrete for large-section inclined column |
| CN106245852A (en) * | 2016-09-24 | 2016-12-21 | 龙元建设集团股份有限公司 | Abnormity concrete counterfort reinforcing bar localization method |
| CN110005075A (en) * | 2019-04-03 | 2019-07-12 | 江苏中原建设集团有限公司 | A kind of construction method of strengthening concrete bean column node |
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