CN116607706A - Construction method of complex-structure multi-curved-surface circular arc bare concrete structure - Google Patents
Construction method of complex-structure multi-curved-surface circular arc bare concrete structure Download PDFInfo
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- CN116607706A CN116607706A CN202310639278.2A CN202310639278A CN116607706A CN 116607706 A CN116607706 A CN 116607706A CN 202310639278 A CN202310639278 A CN 202310639278A CN 116607706 A CN116607706 A CN 116607706A
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- 238000010276 construction Methods 0.000 title claims abstract description 27
- 238000013461 design Methods 0.000 claims description 38
- 229910000831 Steel Inorganic materials 0.000 claims description 21
- 239000010959 steel Substances 0.000 claims description 21
- 210000001503 joint Anatomy 0.000 claims description 8
- 238000009434 installation Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
- 238000012545 processing Methods 0.000 claims description 5
- 239000002390 adhesive tape Substances 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 4
- 238000005520 cutting process Methods 0.000 claims description 3
- 230000003014 reinforcing effect Effects 0.000 claims description 3
- 238000009415 formwork Methods 0.000 claims description 2
- 238000009435 building construction Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 5
- 239000002002 slurry Substances 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000009877 rendering Methods 0.000 description 3
- 238000002788 crimping Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/30—Columns; Pillars; Struts
- E04C3/36—Columns; Pillars; Struts of materials not covered by groups E04C3/32 or E04C3/34; of a combination of two or more materials
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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
- E04G13/02—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills for columns or like pillars; Special tying or clamping means therefor
-
- 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
- E04G13/02—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills for columns or like pillars; Special tying or clamping means therefor
- E04G13/028—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills for columns or like pillars; Special tying or clamping means therefor for columns' capital
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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
-
- 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
- E04G17/02—Connecting or fastening means for non-metallic forming or stiffening elements
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
Abstract
The application relates to the field of building construction, and particularly discloses a construction method of a multi-curved-surface circular arc bare concrete structure with a complex structure.
Description
Technical Field
The application relates to the field of building construction, in particular to a construction method of a multi-curved-surface circular arc bare concrete structure with a complex structure.
Background
In order to meet the requirements of green, energy-saving and environment-friendly buildings, meanwhile, the unique and graceful products and smooth lines are required, and modern structures are required to be attractive, and most of the buildings adopt special-shaped concrete structures so as to meet the forming effect of design requirements. Although the concrete can meet the modeling of the building design, the special-shaped concrete structure causes the problems of high decoration construction difficulty and complex nodes. In addition, if ordinary concrete is adopted for structural pouring, the structural surface is rough, the appearance quality is poor, and secondary treatment is needed in the later period. Therefore, the bare concrete has good natural aesthetic feeling after being molded, does not need to decorate the wall surface, and is widely applied to large-scale building projects.
In the design project of the platform canopy of a high-speed rail station in a certain city, internal researches prove that the special-shaped structure of the canopy column is finished by adopting the bare concrete, but the special-shaped bare concrete has more complicated forming structure and higher forming effect requirement. Because the canopy post is the columnar structure of upper portion bifurcation, bifurcation portion along vertical axis symmetry and have certain radian, how the design radian of clear water arc top and the straightness of continuous arc top are controlled in order to reach the artistic effect that the designer required, become the direction that the key was overcome.
The key construction difficulty in this project lies in:
1. the double-layer floor slab with the groove is easy to deform due to the effect of upper load in construction of the clear water arc top template;
2. the design of the lower support of the clear water arc roof with the groove must meet enough strength, and meanwhile, the lower support of each arc roof is guaranteed not to generate vertical displacement, otherwise, the whole body is pulled to move, and finally, the clear water arc roof is not on a horizontal plane, so that the forming quality of the arc roof is influenced;
3. the interface template of the arc-shaped template and the groove template, the vertical wall body or the beam template needs to be perfectly tangent, otherwise, quality defects such as slurry leakage, dislocation, unsmooth alignment and the like can occur when the arc-shaped surface and the straight surface are in contact with the joint line.
Aiming at the problems of the dimensional deviation of the special-shaped structure of the bare concrete, the accuracy of the curvature of the structure, the problems of dislocation, slurry leakage and other construction difficulties during the template splicing, a construction method is necessary to be provided.
Disclosure of Invention
The application provides a construction method of a multi-curved-surface circular arc bare concrete structure with a complex structure, which aims to solve the problems of dimensional deviation of the abnormal structure of the bare concrete, accuracy of curvature of the structure, dislocation and slurry leakage during template splicing and the like.
In order to solve the above-mentioned purpose, the application adopts the following technical scheme: a construction method of a complex-structure multi-curved-surface circular arc bare concrete structure is characterized by comprising the following steps of:
1-1, deeply processing a corresponding multi-curved-surface arc concrete structure design drawing manufacturing template according to a design drawing, wherein the manufacturing template comprises an outer mold design, an auxiliary keel design and a main keel selection; the secondary joists are arranged at intervals along the longitudinal direction of the outer die to support the outer die, and the main joists are arranged at intervals along the transverse direction of the outer die to support the outer die.
The design of the secondary joists comprises the step of carrying out sectional design of the secondary joists according to the axillary radian of the canopy, and dividing the whole axillary arc into a plurality of sections of secondary joists; the sectional design of the hole secondary joists is carried out according to the hole shapes, and the hole secondary joists are divided into a plurality of sections of hole secondary joists along the hole shapes;
the main keel selection comprises cutting square tubes or battens with suitable lengths for installing the secondary keels according to the sizes of the secondary keels;
the outer mold design comprises the steps of staggering the joint seam of the outer mold with the joint seam of the main joist and the secondary joist by adjusting the joint seam of each section of outer mold according to the joint seam design of the butt joint surfaces of the outer mold, and enabling each section of outer mold to be in pressure connection with the adjacent main joist and secondary joist;
1-2: the method comprises the steps of performing trial installation on a hole template in a canopy column, a canopy underarm template, a canopy side template, a canopy lower column template and the like, and carrying out batch transportation to a construction site after passing the trial installation;
2-1: setting up a full hall frame of a disc buckle supporting system on a construction site;
2-2: setting up a lower post template of the rain shed, and connecting the lower post template of the rain shed by adopting a snap fastener, wherein the lower post template of the rain shed comprises four first lower post side dies and second lower post side dies which can be enclosed to form square posts;
2-3: extending and building the full-hall frame to the upper half part of the canopy column, and fixing one single canopy side template positioned on the front side surface and the rear side surface of the upper part of the canopy column;
2-4: fixing two side canopy underarm templates with a single canopy side template, wherein the single side canopy underarm templates comprise four first arc templates, second arc templates, third arc templates and fourth arc templates which are cut in a segmented mode along the canopy underarm radian, and installing the arc templates sequentially from bottom to top according to the arc sequence;
2-5: pre-splicing the hole templates in the canopy columns to form a columnar whole, and fixing the hole templates in each canopy column with the single canopy side templates;
2-6: fixing the side templates of the awning on the other side opposite to the installed side templates of the awning, so that two ends of the hole templates in the awning column are respectively connected to the side templates of the awning on two sides;
3-1: sealing side walls of two ends, far away from the center shaft, of the bifurcation part of the canopy column and reinforcing the periphery;
4-1: and pouring concrete after the template and the steel bars are built.
The basic principle of the scheme is as follows: the underarm templates and the hole templates of the whole canopy post are split into a structure with multiple sections of mutually nested, radians of each section of templates and radians of different positions are defined, factory processing is facilitated through template design, template progress is improved, factory processing can achieve the required radians of 1:1 re-engraved pattern paper design drawing, splicing is carried out after the template is transported to the site, a full hall frame is erected on the site by adopting a disc buckle type steel pipe, the main joist is reinforced on the site by adopting a square steel pipe, splicing quality and fixing mode of the templates are guaranteed, and the radians of the finalized templates are guaranteed to meet design requirements.
The beneficial effect of this scheme is: different with the template of plane concatenation, adopt the primary and secondary knot to carry out the splice seam design of each template in this scheme, the both sides of external mold compare with the secondary joist length of its top promptly, one side protrusion, the another side adduction to the one end that reaches each section external mold and meet can closely laminate, and the splice seam of external mold is closed by the plane of secondary joist, the splice seam of external mold staggers with the splice seam of secondary joist, avoid the slurry to leak from splice seam department, and nested structure can make closely the crimping between each template, avoid each template structural dimension deviation, the accuracy of structural curvature and the wrong platform leakage when template concatenation.
Further, the outer mold design in the 1-1 aims at the length of the main joist and the secondary joist to carry out adduction or extension on the side walls of the two sides of each section of outer mold, wherein the distance is 3% -10% of the length of the whole outer mold. The nesting structure is used for avoiding the occurrence of mold expansion, uneven surface and concrete slurry leakage of adjacent templates
Further, 2-2 also includes mounting a chamfer on the inside of the intersection of the first lower side form and the second lower side form. So that the four edges of the cylinder are rounded.
Further, 2-5 also comprise assembling hole templates in a single canopy column, wherein the hole templates in the canopy column comprise four special-shaped templates from top to bottom, sharp corner templates at the tops of the holes are firstly installed, then special-shaped templates at two sides below the sharp corner templates are symmetrically installed, then arc-shaped templates at the middle parts of the holes below the special-shaped templates are symmetrically installed, and finally V-shaped templates at the bottoms of the holes are installed. And completing the design of the closed template on the circumference of the inner wall of the hole through four nested templates.
Further, the method comprises the steps of (1) sequentially disassembling a lower post template of the awning, a side template of the awning, a hole template in the awning post and an underarm template of the awning after (4-1); the disassembly sequence of the hole templates in the canopy columns is to disassemble the special-shaped templates first and then disassemble the rest templates. When the hole mould is disassembled, the special-shaped mould plates of the hole mould plates are firstly disassembled, and the nesting mode of the four mould plates is relieved.
Further, the joints of the templates in the steps 2-2 to 2-6 are sealed by adhesive tapes. And the joint is further sealed through the adhesive tape, so that the joint is avoided during casting of the fresh water concrete.
Further, 2-4 still include adopting square steel to support the canopy armpit template bottom that installs, square steel sets up along the arc direction of cambered surface interval in proper order, and square steel adopts and full hall frame fixed pole setting jacking to fix. The radian of the armpit template is a key structure of the canopy column, and the longitudinal deformation of the arc roof is further prevented by square steel from being supported from the bottom.
Further, when the upright rod jacking supports all the square steel, the upright rod jacking supports and the inclined support are staggered, and the upright rod jacking supports of the inclined support are perpendicular to the radian tangent line of the arc-shaped template at the square steel. And setting a stress point of the vertical rod jacking according to the trend of the arc shape.
Further, the outer parts of the side templates of the rainshed in the steps 2-3 and 2-6 are secondarily reinforced by adopting vertical square pipes which are arranged at intervals along the horizontal direction. Because the side templates are the basis for hole positioning and fixing, the positioning accuracy and firmness of the side templates are required to be ensured.
Further, the method 2-5 further comprises the step of abutting the side walls of opposite faces of the hole templates in the canopy columns by using battens. The support is carried out from the inside of the hole to avoid the sinking deformation of the hole template.
Drawings
FIG. 1 is an overall schematic view of a canopy post according to an embodiment of the present application;
FIG. 2 is a schematic diagram illustrating the assembly of a hole-in-canopy post template 02 according to an embodiment of the present application;
FIG. 3 is a schematic view of a pointed pattern in a hole pattern 02 in a canopy post;
FIG. 4 is a top view of the pointed die plate in hole die plate 02;
fig. 5 is a schematic view illustrating the assembly of the canopy post underarm module 03 according to an embodiment of the present application;
FIG. 6 is a schematic view of an arcuate form in a canopy post underarm form 03;
FIG. 7 is a schematic view illustrating the assembly of a canopy post side form 04 according to an embodiment of the present application;
FIG. 8 is an overall schematic of a canopy post according to an embodiment of the present application;
FIG. 9 is a three-dimensional rendering of a canopy post in an embodiment of the present application;
FIG. 10 is a three-dimensional rendering of a canopy post in an embodiment of the present application;
fig. 11 is a three-dimensional rendering of a canopy post in an embodiment of the present application.
Detailed Description
The following is a further detailed description of the embodiments:
reference numerals in the drawings of the specification include: canopy post 01, hole template 02, armpit template 03, side template 04, lower part post template 05, external mold 06, main joist 07, secondary joist 08.
An embodiment is substantially as shown in figures 1 to 7:
1-1, deeply processing a corresponding canopy post middle hole template, a canopy underarm template, a canopy side template and a canopy lower post template according to a design drawing, wherein the method comprises the steps of outer mold design, secondary keel design and main keel selection; the cross runners 08 are spaced longitudinally along the outer mold 06 and the main runners 07 are spaced laterally along the outer mold 06 as shown in figures 3 and 4. In the embodiment, the secondary keels are engraving plate keels, the main keels are square timber, and the outer mold adopts a film-covered black template with the thickness of 15 mm. The design of the secondary joists comprises the step of carrying out sectional design of the secondary joists according to the axillary radian of the canopy, and dividing the whole axillary arc into a plurality of sections of secondary joists; the sectional design of the hole secondary joists is carried out according to the hole shapes, and the hole secondary joists are divided into a plurality of sections of hole secondary joists along the hole shapes;
the main keel selection comprises cutting square tubes or battens with suitable lengths for installing the secondary keels according to the sizes of the secondary keels;
the outer mold design comprises the steps of according to the joint design of determining the butt joint surface of the outer mold, staggering the joint of the outer mold with the joint of the main joist and the secondary joist by adjusting the joint of each section of outer mold, and carrying out adduction or extension on the side walls of the two sides of each section of outer mold according to the lengths of the main joist and the secondary joist, wherein one end of the joint of the mold plate is adducted to the main joist or the secondary joist; the other end extends beyond the main keel or the secondary keel; when two adjacent templates are spliced, the extending end of one template is lapped to the adduction end of the other template, so that a splicing seam is positioned on the main keel or the secondary keel, the top surface of the outer mold is contacted with the plane of the adjacent secondary keel by nesting at the butt joint position of the two adjacent outer molds, and each section of outer mold can be in crimping connection with the adjacent main keel and secondary keel.
Specifically, four templates of different parts are designed according to the shape of a canopy column, main keels and secondary keels are fixed on the templates, the main keels are arranged at intervals along the transverse direction of the templates, and the secondary keels are arranged at intervals along the longitudinal direction of the templates; the two main keels at opposite ends are contacted when the adjacent templates are spliced, and are fixed by bolts, and the distance for adducting or extending the side walls of the two sides of each section of outer mold is 15cm according to the lengths of the main keels and the secondary keels.
1-2: the method comprises the steps of performing trial installation on a hole template in a canopy column, a canopy underarm template, a canopy side template, a canopy lower column template and the like, and carrying out batch transportation to a construction site after passing the trial installation;
2-1: setting up a full hall frame of a disc buckle supporting system on a construction site;
2-2: setting up a lower post template of the rain shed, installing chamfer strips on the inner side of the intersection surface of the first lower side die and the second lower side die, sealing joints by adopting adhesive tapes, and connecting the lower post template of the rain shed by adopting snap fasteners, wherein the lower post template of the rain shed comprises four lower post side dies capable of enclosing into square posts;
2-3: extending and building the full hall frame to the upper half part of the canopy column, and fixing one side of the canopy side templates positioned on the front side and the rear side of the upper part of the canopy column;
2-4: fixing two side canopy underarm templates with a single canopy side template, wherein the single side canopy underarm templates comprise four first arc templates, second arc templates, third arc templates and fourth arc templates which are cut in a segmented mode along the canopy underarm radian, and installing the arc templates sequentially from bottom to top according to the arc sequence;
the bottom of the installed canopy underarm template is supported by square steel, the square steel is arranged at intervals in the transverse direction, and the square steel is fixed by a vertical rod jacking fixed with a full-hall frame. The vertical rod jacking and lifting of each square steel are staggered in a vertical supporting and diagonal supporting mode, and the vertical rod jacking and lifting of the diagonal supporting are perpendicular to the radian tangent line of the arc-shaped formwork at the square steel.
2-5: pre-splicing the hole templates in the canopy columns to form a columnar whole, and fixing the hole templates in each canopy column with the single canopy side templates; assembling a hole template in a single canopy column, wherein the hole template in the canopy column comprises four special-shaped templates from top to bottom, forming holes through pre-assembling, firstly installing sharp angle templates at the tops of the holes (shown in fig. 3), then symmetrically installing special-shaped templates (not drawn) on two sides below the sharp angle templates, then symmetrically installing arc strip templates (not drawn) in the middle of the holes below the special-shaped templates, and finally installing V-shaped templates (not drawn) at the bottoms of the holes. And (3) butting opposite side walls of the hole templates in the canopy columns by using criss-cross battens.
2-6: fixing the side templates of the awning on the other side opposite to the installed side templates of the awning, so that two ends of the hole templates in the awning column are respectively connected to the side templates of the awning on two sides; the outside of the canopy side template adopts vertical square pipes which are arranged at intervals along the horizontal direction to carry out secondary reinforcement.
3-1: sealing the side walls at the left end and the right end of the branching part of the canopy column by using templates, and reinforcing the periphery of the branching part by using a frame-shaped frame; and the forming of the bifurcation part during the subsequent concrete pouring is ensured.
4-1: and pouring concrete on the templates and the qualified steel bars.
5-1, sequentially disassembling a lower post template of the awning, a side template of the awning, a hole template in the awning post and an underarm template of the awning; the disassembly sequence of the hole templates in the canopy columns is to disassemble the special-shaped templates first and then disassemble the rest templates.
The foregoing is merely exemplary embodiments of the present application, and specific structures and features that are well known in the art are not described in detail herein. It should be noted that modifications and improvements can be made by those skilled in the art without departing from the structure of the present application, and these should also be considered as the scope of the present application, which does not affect the effect of the implementation of the present application and the utility of the patent. The protection scope of the present application is subject to the content of the claims, and the description of the specific embodiments and the like in the specification can be used for explaining the content of the claims.
Claims (10)
1. A construction method of a complex-structure multi-curved-surface circular arc bare concrete structure is characterized by comprising the following steps of:
1-1, deeply processing a corresponding multi-curved-surface arc concrete structure design drawing manufacturing template according to a design drawing, wherein the manufacturing template comprises an outer mold design, an auxiliary keel design and a main keel selection; the secondary joists are arranged at intervals along the longitudinal direction of the outer die to support the outer die, and the main joists are arranged at intervals along the transverse direction of the outer die to support the outer die.
The design of the secondary joists comprises the step of carrying out sectional design of the secondary joists according to the axillary radian of the canopy, and dividing the whole axillary arc into a plurality of sections of secondary joists; the sectional design of the hole secondary joists is carried out according to the hole shapes, and the hole secondary joists are divided into a plurality of sections of hole secondary joists along the hole shapes;
the main keel selection comprises cutting square tubes or battens with suitable lengths for installing the secondary keels according to the sizes of the secondary keels;
the outer mold design comprises a joint design for determining the butt joint surface of the outer mold, the joint of each outer mold is staggered with the joint of the main joist and the secondary joist by adjusting the joint of each outer mold, the side walls of the two sides of each outer mold are retracted or extended according to the lengths of the main joist and the secondary joist, the top surface of the outer mold is contacted with the plane of the adjacent secondary joist by nesting of the butt joint of the adjacent two outer molds, and each outer mold can be crimped by the adjacent main joist and secondary joist.
1-2: the method comprises the steps of performing trial installation on a hole template in a canopy column, a canopy underarm template, a canopy side template, a canopy lower column template and the like, and carrying out batch transportation to a construction site after passing the trial installation;
2-1: setting up a full hall frame of a disc buckle supporting system on a construction site;
2-2: setting up a lower post template of the rain shed, and connecting the lower post template of the rain shed by adopting a snap fastener, wherein the lower post template of the rain shed comprises four first lower post side dies and second lower post side dies which can be enclosed to form square posts;
2-3: extending and building the full hall frame to the upper half part of the canopy column, and fixing one side of the canopy side templates positioned on the front side and the rear side of the upper part of the canopy column;
2-4: fixing two side canopy underarm templates with a single canopy side template, wherein the single side canopy underarm templates comprise four first arc templates, second arc templates, third arc templates and fourth arc templates which are cut in a segmented mode along the canopy underarm radian, and installing the arc templates sequentially from bottom to top according to the arc sequence;
2-5: pre-splicing the hole templates in the canopy columns to form a columnar whole, and fixing the hole templates in each canopy column with the single canopy side templates;
2-6: fixing the side templates of the awning on the other side opposite to the installed side templates of the awning, so that two ends of the hole templates in the awning column are respectively connected to the side templates of the awning on two sides;
3-1: sealing the side walls of the two ends, far away from the center shaft, of the branching part of the canopy column and reinforcing the periphery by using a frame-shaped frame;
4-1: and pouring concrete after the template and the steel bars are built.
2. The construction method of the complex-structure multi-curved-surface circular arc bare concrete structure, which is characterized by comprising the following steps of: the outer mold design in the section 1-1 is used for adducting or extending the side walls of the two sides of each section of outer mold for the length of the main joist and the secondary joist by 3-10%.
3. The construction method of the complex-structure multi-curved-surface circular arc bare concrete structure according to claim 2, which is characterized by comprising the following steps: the 2-2 further comprises a chamfer bar mounted on the inner side of the intersection surface of the first lower side die and the second lower side die.
4. The construction method of the complex-structure multi-curved-surface circular arc bare concrete structure according to claim 3, which is characterized by comprising the following steps: the 2-5 also comprises hole templates in the assembled single canopy column, wherein the hole templates in the canopy column comprise four special-shaped templates from top to bottom, sharp corner templates at the tops of the holes are installed firstly, then special-shaped templates at two sides below the sharp corner templates are installed symmetrically, then arc-shaped templates at the middle parts of the holes below the special-shaped templates are installed symmetrically, and finally V-shaped templates at the bottoms of the holes are installed.
5. The construction method of the complex-structure multi-curved-surface circular arc fair-faced concrete structure is characterized by comprising the following steps of: the post of 4-1 also comprises 5-1 of sequentially disassembling a lower post template of the awning, a side template of the awning, a hole template in the awning post and an underarm template of the awning; the disassembly sequence of the hole templates in the canopy columns is to disassemble the special-shaped templates first and then disassemble the rest templates.
6. The construction method of the complex-structure multi-curved-surface circular arc fair-faced concrete structure is characterized by comprising the following steps of: and the joints of the templates in the steps 2-2 to 2-6 are sealed by adhesive tapes.
7. The construction method of the complex-structure multi-curved-surface circular arc fair-faced concrete structure is characterized by comprising the following steps of: 2-4 still include adopting square steel to support the canopy armpit template bottom of installing, square steel sets up along the arc direction of cambered surface interval in proper order, and square steel adopts and fills the pole setting jacking that hall frame is fixed to fix.
8. The construction method of the complex-structure multi-curved-surface circular arc fair-faced concrete structure is characterized by comprising the following steps of: the vertical rod jacking and lifting of each square steel are staggered in a vertical supporting and diagonal supporting mode, and the vertical rod jacking and lifting of the diagonal supporting are perpendicular to the radian tangent line of the arc-shaped formwork at the square steel.
9. The construction method of the complex-structure multi-curved-surface circular arc fair-faced concrete structure is characterized by comprising the following steps of: the outer parts of the side templates of the rainshed in the steps 2-3 and 2-6 are secondarily reinforced by adopting vertical square pipes which are arranged at intervals along the horizontal direction.
10. The construction method of the complex-structure multi-curved-surface circular arc fair-faced concrete structure, which is characterized by comprising the following steps of: and the step 2-5 also comprises the step of abutting the side walls of opposite faces of the hole templates in the canopy columns by adopting a batten.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310639278.2A CN116607706A (en) | 2023-05-31 | 2023-05-31 | Construction method of complex-structure multi-curved-surface circular arc bare concrete structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310639278.2A CN116607706A (en) | 2023-05-31 | 2023-05-31 | Construction method of complex-structure multi-curved-surface circular arc bare concrete structure |
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| CN116607706A true CN116607706A (en) | 2023-08-18 |
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| CN202310639278.2A Pending CN116607706A (en) | 2023-05-31 | 2023-05-31 | Construction method of complex-structure multi-curved-surface circular arc bare concrete structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117449646A (en) * | 2023-08-18 | 2024-01-26 | 中铁建工集团有限公司 | No platform post canopy and template system thereof |
| CN117489114A (en) * | 2023-11-25 | 2024-02-02 | 中铁建设集团南方工程有限公司 | Construction method of arc-shaped canopy roof structure of station building |
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2023
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117449646A (en) * | 2023-08-18 | 2024-01-26 | 中铁建工集团有限公司 | No platform post canopy and template system thereof |
| CN117489114A (en) * | 2023-11-25 | 2024-02-02 | 中铁建设集团南方工程有限公司 | Construction method of arc-shaped canopy roof structure of station building |
| CN117489114B (en) * | 2023-11-25 | 2024-05-07 | 中铁建设集团南方工程有限公司 | Construction method of arc-shaped canopy roof structure of station building |
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