CN116446644A - Construction method for hanging thin-wall plate under boundary beam of super high-rise steel structure - Google Patents
Construction method for hanging thin-wall plate under boundary beam of super high-rise steel structure Download PDFInfo
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- CN116446644A CN116446644A CN202310277314.5A CN202310277314A CN116446644A CN 116446644 A CN116446644 A CN 116446644A CN 202310277314 A CN202310277314 A CN 202310277314A CN 116446644 A CN116446644 A CN 116446644A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 55
- 239000010959 steel Substances 0.000 title claims abstract description 55
- 238000010276 construction Methods 0.000 title claims abstract description 43
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 77
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 77
- 239000004567 concrete Substances 0.000 claims abstract description 23
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 5
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims abstract description 4
- 238000005266 casting Methods 0.000 claims abstract description 4
- 238000009434 installation Methods 0.000 claims description 14
- 238000007689 inspection Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 9
- 238000009415 formwork Methods 0.000 claims description 8
- 230000002265 prevention Effects 0.000 claims description 5
- 230000008569 process Effects 0.000 claims description 5
- 230000001680 brushing effect Effects 0.000 claims description 3
- 238000005286 illumination Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 239000002994 raw material Substances 0.000 claims description 3
- 230000008859 change Effects 0.000 abstract description 8
- 238000010586 diagram Methods 0.000 description 5
- 239000004411 aluminium Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- 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
- E04G13/06—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills for stairs, steps, cornices, balconies, or other parts corbelled out of the wall
- E04G13/066—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills for stairs, steps, cornices, balconies, or other parts corbelled out of the wall for overhangs
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The invention is suitable for the technical field of buildings, and provides a construction method for hanging a thin-wall plate under an edge beam of an ultra-high-rise steel structure, which comprises the following steps: setting up a supporting vertical rod, assembling an inner side aluminum template, horizontally clamping and tying, binding reinforcing steel bars, assembling and reinforcing an outer side aluminum template, casting concrete, and dismantling the inner side aluminum template and the outer side aluminum template of the lower hanging thin wall plate. The supporting system formed by the construction method is characterized in that the aluminum die system and the steel structure boundary beam are tied through the horizontal clamp, the stability problem of the supporting system is solved, the thickness of the lower hanging thin-wall plate is thin and high, and the forming quality of the lower hanging thin-wall plate can be improved by adopting the customized aluminum die plate with high rigidity and high precision. The section of the outer frame steel pipe column is changed from large to small, the distance between the inner side of the lower hanging thin-wall plate and the steel column is gradually changed along with the change of the section of the column, and the aluminum die is deeply designed to be adjusted through the modulus, so that the construction difficulty is not increased between the inner side of the lower hanging thin-wall plate and the steel column due to the change of the distance.
Description
Technical Field
The invention belongs to the technical field of buildings, and particularly relates to a construction method for hanging a thin-wall plate under an edge beam of an ultra-high-rise steel structure.
Background
In recent years, when designing super high-rise building industry, combining external modeling needs to pick out floors from each layer, and take every two layers as a fireproof unit. In each fireproof unit, a thin-wall concrete slab is hung under the steel structure boundary beams with certain height and thickness between every two layers of curtain walls so as to prevent fire spreading.
The lower hanging thin-wall plate is arranged along the outer edge of the building structure, the traditional construction method adopts a steel pipe frame and wood form construction process, and the outer frame structure is a steel bar truss building carrier plate, so that the lower hanging thin-wall plate has no supporting frame, and the supporting frame can only be tied with a steel column, the lateral rigidity cannot meet the safety requirement, and the molding quality is difficult to ensure due to the fact that the template is reinforced.
Disclosure of Invention
The invention aims to provide a construction method for hanging a thin-wall plate under an edge beam of an ultra-high-rise steel structure, which is suitable for engineering that an outer frame of an ultra-high-rise core tube is of a steel structure and a hanging thin-wall plate under the edge beam of the structure is of a reinforced concrete structure, and can effectively solve the problems that a formwork support system is unstable, the concrete forming quality is low, and the section of a steel pipe column is changed so as to cause the construction of a formwork to be difficult.
The above object of the present invention is achieved by the following technical solutions:
the construction method for the lower hanging thin-wall plate of the boundary beam of the super high-rise steel structure comprises the following steps:
s1, erecting a supporting upright rod;
s2, assembling the inner side aluminum templates and horizontally clamping the hoops;
s3, binding reinforcing steel bars;
s4, assembling and reinforcing the outer aluminum templates;
s5, pouring concrete;
s6, removing the inner side aluminum template and the outer side aluminum template of the lower hanging thin-walled plate.
As an optional embodiment of the present technical solution, the S1 specifically includes: according to the requirements of the deepened design drawing and the construction scheme, the specific position of the supporting upright rod is determined, and the base of the supporting upright rod is fixed with the structural plate surface through the expansion bolts.
As an optional embodiment of the present technical solution, the S2 specifically includes:
checking the aluminum templates according to design requirements, checking whether accessories of the aluminum templates are complete, and numbering the aluminum templates so as to facilitate the installation of the aluminum templates;
confirming the position of the lower hanging thin wall plate, and brushing a template isolating agent for the lower hanging thin wall plate;
installing an inner aluminum template for the lower hanging thin-wall plate;
installing a top support for the hanging thin-wall plate;
detecting the flatness of the inner side aluminum template, and adjusting the levelness of the inner side aluminum template by adjusting the height of the top support at uneven places.
As an optional embodiment of the present disclosure, the step of installing an inner aluminum template for the lower hanging thin-wall plate specifically includes;
supporting the inner aluminum template on a beam notch reserved on the steel column template, and performing reliable connection;
determining the height of the bottom plate of the lower hung thin-walled plate from the ground according to the elevation;
and installing a side die and a bottom die for the lower hanging thin-wall plate by using a connecting piece, and correcting the verticality of the side die and the levelness of the bottom die.
As an optional embodiment of the present technical solution, the S4 specifically includes:
before the outer aluminum templates are installed, sleeving sleeves on the opposite-pulling screws, wherein the distance between the opposite-pulling screws is set to be 450 mm, and the contact positions of the sleeves and the template surfaces on two sides of the lower hanging thin-wall plate are ensured to be accurate, so that the opposite-pulling screws can be retracted after casting;
installing an outer aluminum template for the lower hanging thin-wall plate;
checking the condition of an interface gap between the outer aluminum template and the inner aluminum template, and plugging the interface gap if the condition exceeds the specified requirement.
As an optional embodiment of the present disclosure, when performing S5, the method includes:
checking whether the support is reliable, whether the screw rod is loose, checking whether the support and the screw rod are deformed and loosened, and timely recovering the tissues, wherein a special person has to watch the mould when pouring the concrete.
As an optional embodiment of the present disclosure, when performing S6, the method includes:
after the strength of the concrete meets the dismantling requirement, dismantling the inner side aluminum template and the outer side aluminum template, reserving a supporting system, and circularly constructing the construction process of the lower hanging thin-walled plate of the upper layer according to the flow.
As an optional embodiment of the present technical solution, in performing the step S2:
before the first installation of the aluminum mould, the components, materials and the like which are processed and purchased are comprehensively checked and accepted, and the check and acceptance contents comprise: inspection of raw materials, structural dimensions of fittings, inspection of welds, inspection of the functions of support members and fittings.
As an alternative embodiment of the present technical solution, the template verticality control and the deformation prevention control are performed before the template installation is performed.
As an optional embodiment of the present disclosure, before the installing the template, the controlling the verticality of the template and the controlling the deformation resistance are performed, where the controlling the verticality of the template specifically includes:
before the template is installed in place, retesting is carried out on each template line, and after the retesting is confirmed to be correct, the template can be installed;
checking the perpendicularity of the template, and ensuring that the perpendicularity is not more than 3mm and the flatness is not more than 2mm;
before the template is in place, checking whether the position and the distance of the top die meet the requirements;
wherein, the anti-deformation control specifically includes:
when concrete is poured, a layered ruler rod is made, illumination is matched, layered pouring is carried out, the layer height is controlled within 500mm, and the template is deformed due to the fact that vibration is prevented from being too tight or excessively vibrated;
after the formwork is erected, horizontal and vertical through lines are pulled, so that the deformation and the running position of the formwork are easy to observe during concrete pouring;
carefully checking whether the bolts and the horizontal clamp are loosened before pouring;
and after the template is erected, the template is forbidden to be tied with the scaffold.
In summary, the beneficial technical effects of the invention are as follows:
1. the stability control of the support system is the key point of the construction of the lower hanging thin-wall plate of the side beam of the tower steel structure, and because the outer frame structure is a steel bar truss floor carrier plate, the support frame is not provided, and the aluminum die system and the side beam of the steel structure are tied through the horizontal clamp, so that the stability problem of the support system is solved.
2. The lower hanging thin-wall plate has thin thickness and high height, and the forming quality of the lower hanging thin-wall plate can be improved by adopting the customized aluminum template with high rigidity and high precision.
3. The section of the outer frame steel pipe column is changed from large to small, the distance between the inner side of the lower hanging thin-wall plate and the steel column is gradually changed along with the change of the section of the column, and the aluminum die is deeply designed to be adjusted through the modulus, so that the construction difficulty is not increased between the inner side of the lower hanging thin-wall plate and the steel column due to the change of the distance.
Drawings
FIG. 1 is a schematic diagram of a horizontal clamp and drawknot structure of a construction method for hanging a thin-wall plate under an edge beam of an ultra-high-rise steel structure, which is provided by the embodiment of the invention;
fig. 2 is a schematic drawing of a tie-up enlarged structure in a construction method of hanging a thin-wall plate under an edge beam of an ultra-high-rise steel structure provided by the embodiment of the invention;
FIG. 3 is a schematic view of a construction flow in a construction method for hanging a thin-wall plate under an edge beam of an ultra-high-rise steel structure provided by the embodiment of the invention;
fig. 4 is a schematic diagram of a supporting upright setting structure in the construction method of hanging a thin-wall plate under an edge beam of an ultra-high-rise steel structure provided by the embodiment of the invention;
fig. 5 is a schematic diagram of an overall frame structure in the construction method of hanging a thin-wall plate under an edge beam of an ultra-high-rise steel structure provided by the embodiment of the invention.
Detailed Description
For the purposes of making the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.
The invention is described in further detail below with reference to fig. 1-5.
The construction method for the lower hanging thin-wall plate of the boundary beam of the super high-rise steel structure comprises the following steps: erecting a supporting upright rod; assembling an inner aluminum template and a horizontal clamp drawknot; binding reinforcing steel bars; assembling and reinforcing the outer aluminum templates; pouring concrete; and removing the inner side aluminum template and the outer side aluminum template of the lower hanging thin wall plate.
When the construction method is implemented, the process principle comprises the following steps: and after the outer frame steel bar truss floor carrier plates of the corresponding floors are paved and the outer protection is put in place, installing the bottom side of the lower hanging thin wall plate, the inner side template and the template top support according to the requirements of the design drawing according to the position and the span of the lower hanging thin wall plate. After assembling and hanging the inner side aluminum mould of the thin-wall plate, adopting a customized adjustable horizontal clamp with the interval not more than 1.6m, and carrying out drawknot on a supporting system and a steel beam in a mode that one end is fixed with the inner side of the aluminum mould through bolts and the other end is fixed with the lower flange of the steel beam through an adjustable clamp, wherein the horizontal clamp and drawknot structure schematic diagram refer to fig. 1, and reference numeral 10 in the diagram is the horizontal clamp. An enlarged detail view of the horizontal clip is shown in fig. 2. The aluminum die system and the steel structure boundary beam are tied through the horizontal clamp, so that the stability problem of the supporting system is solved. And after the binding of the steel bars is completed, splicing and reinforcing the aluminum mould at the outer side of the lower hanging thin-wall plate, checking and accepting, and pouring concrete. And after the strength of the concrete meets the dismantling requirement, dismantling the aluminum template and reserving the supporting system. The construction of the lower hanging thin-wall plate of the upper layer is circularly constructed according to the flow. One set of aluminum templates and three sets of supporting systems are arranged in the whole construction.
As an alternative embodiment of the present technical solution, the main construction flow of the aluminum die installation of the lower hanging thin-wall plate is shown in fig. 3. Specifically, the erection of the supporting upright rod comprises the step of determining the specific position of the upright rod according to the requirements of a deepened design drawing and a construction scheme, and the upright rod base is fixed with a structural plate surface through on-site expansion bolts. Referring to fig. 4, in the structure of the support upright, reference numeral (1) is a first right-angle fastener (48 mesh support inner tube), reference numeral (2) is a second right-angle fastener (60 mesh support outer tube), and reference numeral (3) is an expansion screw. The section of the outer frame steel pipe column is changed from large to small, the distance between the inner side of the lower hanging thin-wall plate and the steel column is gradually changed along with the change of the section of the column, and the aluminum die is deeply designed to be adjusted through the modulus, so that the construction difficulty is not increased between the inner side of the lower hanging thin-wall plate and the steel column due to the change of the distance.
Wherein, the inboard aluminium mould of string thin wall board and horizontal clamp drawknot down of group's assembly specifically includes: before the first installation of the aluminum mould, checking the template according to the design requirement, checking whether the template components are complete, and numbering the aluminum mould comprehensively so as to facilitate the installation of the aluminum mould. In order to improve the template installation efficiency, the templates are numbered according to the positions and the sizes of engineering axes in advance so as to be positioned for use. And (5) sorting and stacking the removed templates according to numbers. The installation operator should take the responsibility of setting the section and the number. And (5) confirming the position of the lower hanging thin wall plate, and brushing a template spacer. And installing the inner side template of the lower hanging thin-wall plate and supporting. And supporting the lower hanging thin-wall plate template on a beam notch reserved in the steel column template, and performing reliable connection. Determining the height of the bottom plate of the lower hanging thin wall plate from the ground according to the elevation, installing a side die of the lower hanging thin wall plate, and correcting the verticality of the side die; the side mould of the lower hanging thin wall plate is connected with the bottom mould by adopting a special connecting piece for an aluminum mould. And installing a lower hanging thin-wall plate aluminum template and a top support thereof. The flatness of the beam plate template is detected by using a level meter, and the levelness of the template is within an allowable range by adjusting the height of the top support at the uneven place. The section of the outer frame steel pipe column is changed from large to small, so that the distance between the lower hanging thin-wall plate and the steel pipe column is changed, and when the design is deepened, the modulus of the aluminum template outside the column is determined according to the change condition of the section of the column. During construction, the aluminum mould at the corresponding position is supplemented or replaced along with the change of the section of the steel column until the construction of the lower hanging thin-wall plate is completed. According to the design requirement of the drawing, the binding of the steel bars of the lower hanging thin-wall plate is completed, and the whole frame structure after the binding of the steel bars is shown in fig. 5.
Before the first installation of the aluminum mould, the components, materials and the like which are processed and purchased should be comprehensively checked and accepted. Checking the acceptance includes: the inspection of raw materials, the structural size of the fittings, the inspection of welding seams and the inspection of various functions of the supporting members, and the fittings can be used after meeting the design requirements. In an alternative embodiment of the scheme, the requirement of the aluminum die is that the panel seam of the aluminum die is within 1mm, and all seams are filled with putty. The lower hanging thin-wall plate has thin thickness and high height, and the forming quality of the lower hanging thin-wall plate can be improved by adopting the customized aluminum template with high rigidity and high precision. The unevenness of the splice plate is not more than 2mm. The axial displacement, the allowable deviation is +/-5 mm, the maximum deflection of the template truss is 7mm, and the defects of collision, friction, drawing (top) crack, scratch, crack and the like are avoided because the tight observation and careful operation are required in the processes of demoulding, moving, assembling and correcting the template.
Specifically, lower string of thin wall board outside aluminum mould is assembled, consolidates, specifically includes: the outside template can be installed at the rear of the lower hanging thin-wall plate steel bar after the installation is finished, before the lower hanging thin-wall plate aluminum die is closed, PVC pipes are sleeved on the opposite-pull screws in advance, the distance between the opposite-pull screws is 450 mm, and meanwhile, the contact positions of the sleeve and the template surfaces on two sides of the lower hanging thin-wall plate are ensured to be accurate, so that the opposite-pull screws can be recovered after casting. Checking the gap condition of the interface, and adhering foam plastic strips to prevent slurry leakage beyond the specified requirement. When concrete is poured, special woodworking is arranged to keep in order to solve the problems of sinking of the template, die explosion and the like which occur when concrete is poured.
Specifically, when the concrete pouring of the lower hanging thin-wall plate is carried out, whether the support is reliable or not and whether the screw rod is loose or not are checked. When concrete is poured, a special person needs to watch the mould, check whether the support and the screw are deformed or loosened at any time, and timely recover the tissues. And after the strength of the concrete meets the dismantling requirement, dismantling the aluminum template and reserving the supporting system. The construction of the lower hanging thin-wall plate of the upper layer is circularly constructed according to the flow.
Specifically, before the template installation, the template verticality control and the deformation prevention control are performed. Wherein, template straightness control that hangs down specifically includes: before the template is installed in place, retesting is carried out on each template line, and after the retesting is confirmed to be correct, the template can be installed; checking the perpendicularity of the template, and ensuring that the perpendicularity is not more than 3mm and the flatness is not more than 2mm; before the template is in place, checking whether the position and the distance of the top die meet the requirements. The deformation prevention control specifically comprises the following steps: when concrete is poured, a layered ruler rod is made, illumination is matched, layered pouring is carried out, the layer height is controlled within 500mm, and the template is deformed due to the fact that vibration is prevented from being too tight or excessively vibrated; after the formwork is erected, horizontal and vertical through lines are pulled, so that the deformation and the running position of the formwork are easy to observe during concrete pouring; carefully checking whether the bolts and the horizontal clamp are loosened before pouring; and after the template is erected, the template is forbidden to be tied with the scaffold.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (10)
1. The construction method for the lower hanging thin-wall plate of the boundary beam of the super high-rise steel structure is characterized by comprising the following steps of:
s1, erecting a supporting upright rod;
s2, assembling the inner side aluminum templates and horizontally clamping the hoops;
s3, binding reinforcing steel bars;
s4, assembling and reinforcing the outer aluminum templates;
s5, pouring concrete;
s6, removing the inner side aluminum template and the outer side aluminum template of the lower hanging thin-walled plate.
2. The construction method for the lower hanging thin-wall plate of the boundary beam of the super high-rise steel structure according to claim 1, wherein the S1 specifically comprises: according to the requirements of the deepened design drawing and the construction scheme, the specific position of the supporting upright rod is determined, and the base of the supporting upright rod is fixed with the structural plate surface through the expansion bolts.
3. The construction method for the lower hanging thin-wall plate of the boundary beam of the super high-rise steel structure according to claim 1, wherein the step S2 specifically comprises the following steps:
checking the aluminum templates according to design requirements, checking whether accessories of the aluminum templates are complete, and numbering the aluminum templates so as to facilitate the installation of the aluminum templates;
confirming the position of the lower hanging thin wall plate, and brushing a template isolating agent for the lower hanging thin wall plate;
installing an inner aluminum template for the lower hanging thin-wall plate;
installing a top support for the hanging thin-wall plate;
detecting the flatness of the inner side aluminum template, and adjusting the levelness of the inner side aluminum template by adjusting the height of the top support at uneven places.
4. The construction method for the lower hanging thin-wall plate of the boundary beam of the super high-rise steel structure according to claim 3, wherein the step of installing the inner side aluminum template for the lower hanging thin-wall plate comprises the following steps of;
supporting the inner aluminum template on a beam notch reserved on the steel column template, and performing reliable connection;
determining the height of the bottom plate of the lower hung thin-walled plate from the ground according to the elevation;
and installing a side die and a bottom die for the lower hanging thin-wall plate by using a connecting piece, and correcting the verticality of the side die and the levelness of the bottom die.
5. The construction method for the lower hanging thin-wall plate of the boundary beam of the super high-rise steel structure according to claim 1, wherein the step S4 specifically comprises the following steps:
before the outer aluminum templates are installed, sleeving sleeves on the opposite-pulling screws, wherein the distance between the opposite-pulling screws is set to be 450 mm, and the contact positions of the sleeves and the template surfaces on two sides of the lower hanging thin-wall plate are ensured to be accurate so that the opposite-pulling screws can be retracted after casting;
installing an outer aluminum template for the lower hanging thin-wall plate;
checking the condition of an interface gap between the outer aluminum template and the inner aluminum template, and plugging the interface gap if the condition exceeds the specified requirement.
6. The construction method for the lower hanging thin-wall plate of the boundary beam of the super high-rise steel structure according to claim 1, wherein when the step S5 is performed, the method comprises the following steps:
checking whether the support is reliable, whether the screw rod is loose, checking whether the support and the screw rod are deformed and loosened, and timely recovering the tissues, wherein a special person has to watch the mould when pouring the concrete.
7. The construction method for the lower hanging thin-wall plate of the boundary beam of the super high-rise steel structure according to claim 1, wherein when the step S6 is carried out, the method comprises the following steps:
after the strength of the concrete meets the dismantling requirement, dismantling the inner side aluminum template and the outer side aluminum template, reserving a supporting system, and circularly constructing the construction process of the lower hanging thin-walled plate of the upper layer according to the flow.
8. The construction method for the lower hanging thin-wall plate of the boundary beam of the super high-rise steel structure according to claim 1, wherein when the step S2 is carried out:
before the first installation of the aluminum mould, the components, materials and the like which are processed and purchased are comprehensively checked and accepted, and the check and acceptance contents comprise: inspection of raw materials, structural dimensions of fittings, inspection of welds, inspection of the functions of support members and fittings.
9. The construction method for the lower hanging thin-wall plate of the boundary beam of the super high-rise steel structure according to claim 1, wherein the template verticality control and the deformation prevention control are performed before the template installation is performed.
10. The construction method for hanging thin-wall plates under a boundary beam of an ultra-high-rise steel structure according to claim 9, wherein the template perpendicularity control and the deformation prevention control are performed before the template is installed, and the template perpendicularity control specifically comprises:
before the template is installed in place, retesting is carried out on each template line, and after the retesting is confirmed to be correct, the template can be installed;
checking the perpendicularity of the template, and ensuring that the perpendicularity is not more than 3mm and the flatness is not more than 2mm;
before the template is in place, checking whether the position and the distance of the top die meet the requirements;
wherein, the anti-deformation control specifically includes:
when concrete is poured, a layered ruler rod is made, illumination is matched, layered pouring is carried out, the layer height is controlled within 500mm, and the template is deformed due to the fact that vibration is prevented from being too tight or excessively vibrated;
after the formwork is erected, horizontal and vertical through lines are pulled, so that the deformation and the running position of the formwork are easy to observe during concrete pouring;
carefully checking whether the bolts and the horizontal clamp are loosened before pouring;
and after the template is erected, the template is forbidden to be tied with the scaffold.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310277314.5A CN116446644A (en) | 2023-03-20 | 2023-03-20 | Construction method for hanging thin-wall plate under boundary beam of super high-rise steel structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310277314.5A CN116446644A (en) | 2023-03-20 | 2023-03-20 | Construction method for hanging thin-wall plate under boundary beam of super high-rise steel structure |
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| Publication Number | Publication Date |
|---|---|
| CN116446644A true CN116446644A (en) | 2023-07-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310277314.5A Pending CN116446644A (en) | 2023-03-20 | 2023-03-20 | Construction method for hanging thin-wall plate under boundary beam of super high-rise steel structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116446644A (en) |
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2023
- 2023-03-20 CN CN202310277314.5A patent/CN116446644A/en active Pending
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