CN112049415A - Construction method of cornice formwork - Google Patents
Construction method of cornice formwork Download PDFInfo
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- CN112049415A CN112049415A CN202010956828.XA CN202010956828A CN112049415A CN 112049415 A CN112049415 A CN 112049415A CN 202010956828 A CN202010956828 A CN 202010956828A CN 112049415 A CN112049415 A CN 112049415A
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- cross beam
- wedge
- wood
- upper cross
- wood wedge
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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
- E04G13/06—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
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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
- E04G3/00—Scaffolds essentially supported by building constructions, e.g. adjustable in height
- E04G3/18—Scaffolds essentially supported by building constructions, e.g. adjustable in height supported by cantilevers or other provisions mounted in openings in the building, e.g. window openings
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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
- E04G3/00—Scaffolds essentially supported by building constructions, e.g. adjustable in height
- E04G3/20—Scaffolds essentially supported by building constructions, e.g. adjustable in height supported by walls
-
- 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
- E04G5/00—Component parts or accessories for scaffolds
- E04G5/16—Struts or stiffening rods, e.g. diagonal rods
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
The application relates to a construction method of a cornice formwork, which relates to the technical field of formwork support systems, and solves the technical problems that the operation is troublesome, the installation and the disassembly are inconvenient, and the frame body and the overall rigidity are not high in the actual construction of the cornice formwork, wherein the construction method comprises the following steps: s1, mounting a four-corner special-shaped supporting platform frame, wherein the four-corner special-shaped supporting platform frame comprises a vertical beam, an upper cross beam is welded at the upper end of the vertical beam, a lower cross beam is welded at the lower end of the vertical beam, the upper cross beam and the lower cross beam are parallel to each other and are respectively perpendicular to the vertical beam, the length of the upper cross beam is greater than that of the lower cross beam, an oblique beam is connected between the upper cross beam and the lower cross beam, one end of the oblique beam is welded at one end of the upper cross beam, which is far away from the vertical beam, and the other; s2, installing a wood wedge; and S3, mounting the wood beam and the panel. The construction method has the advantages of simple operation in actual construction, high self rigidity and stable integrity.
Description
Technical Field
The application relates to the field of formwork support systems, in particular to a construction method of a cornice formwork.
Background
Many building engineering roofing are cast-in-place roofing of encorbelmenting, and the cornice refers to the part that the external wall was chosen to the roofing, generally chooses the width not less than 50 centimeters, is not more than 3 meters, is mainly for doing the roofing drainage in order to make things convenient for, also plays the guard action to the external wall.
At present, a traditional overhanging structure generally adopts a supporting system such as overhanging I-steel, overhanging tripod support and the like, when the overhanging I-steel is used for supporting, I-steel pre-embedding is needed, then channel steel connecting beams are installed on the I-steel, and then a formwork support is erected on the channel steel, so that the operation is troublesome in actual construction, the mounting and dismounting are inconvenient, and the self rigidity and the integral rigidity of a frame body are not high; when the cantilever tripod is used for supporting a cantilever structure, the stress on the end part of the tripod is large, and more tripods need to be installed to jointly support the cantilever structure.
Disclosure of Invention
In order to solve the technical problems that the cantilever structure formwork is troublesome to operate, inconvenient to mount and dismount and low in frame body self and overall rigidity, the application provides a construction method of the cantilever structure formwork.
The application provides a construction method of a cornice formwork, which adopts the following technical scheme:
a construction method of a cornice formwork comprises the following steps:
s1, mounting a four-corner special-shaped supporting platform frame, wherein the four-corner special-shaped supporting platform frame comprises a vertical beam, an upper cross beam is welded at the upper end of the vertical beam, a lower cross beam is welded at the lower end of the vertical beam, the upper cross beam and the lower cross beam are parallel to each other and are respectively perpendicular to the vertical beam, the length of the upper cross beam is greater than that of the lower cross beam, an oblique beam is connected between the upper cross beam and the lower cross beam, one end of the oblique beam is welded at one end of the upper cross beam, which is far away from the vertical beam, and the other; the shear wall is provided with a first bolt hole, two first bolt holes are formed in the vertical beam, one bolt hole is formed close to the upper cross beam, the other bolt hole is formed close to the lower cross beam, a second bolt hole corresponding to the first bolt hole is formed in the shear wall, and the support platform frame with the special-shaped four corners is fixedly installed on the outer side of the shear wall through split bolts;
s2, installing wood wedges: the wood wedge comprises a first wood wedge and a second wood wedge, the first wood wedge is arranged on one side, away from the lower cross beam, of the upper cross beam, the inclined plane of the first wood wedge is arranged away from the upper cross beam, the second wood wedge is arranged on the first wood wedge, the inclined plane of the second wood wedge is attached to the inclined plane of the first wood wedge, the elevation of the top surface of the second wood wedge is adjusted by staggering the inclined planes, attached to the first wood wedge and the second wood wedge, and then the first wood wedge and the second wood wedge are fixedly connected;
s3, mounting the wood beam and the panel: install the wooden beam in the one side that the wooden wedge deviates from the entablature, wooden beam and wooden wedge syntropy set up, and the bottom die that the one side that the wooden beam deviates from the wooden wedge was used as the template of cornicing is fixed to the panel.
By adopting the technical scheme, the roof overhanging structure is poured, and compared with a three-leg supporting frame, the four-corner special-shaped supporting platform frame improves the rigidity of the frame body on the premise that the weight of the frame body is not increased greatly, the flexibility of the end part of the upper cross beam is reduced under the condition of stress by arranging the lower cross beam, a safer, smoother and higher-precision foundation can be provided for formwork support, and the four-corner special-shaped supporting platform frame is simple and convenient to install through the split bolts; the elevation is adjusted simply and conveniently by staggering the attaching inclined planes of the first wood wedge and the second wood wedge; through setting up wooden roof beam and panel, provide the plane for concreting.
Optionally, in step S1, four corners dysmorphism supporting platform frame still includes the bracing, bracing one end welds in the one side that is close to the bracing of vertical beam, and the other end welds in the one side that is close to vertical beam of sloping.
Through adopting above-mentioned technical scheme, the bracing links the sloping with erecting the roof beam together, has increased the intensity of four corners dysmorphism supporting platform frame.
Optionally, in step S1, the support platform frame further includes a corner brace fixedly disposed at an included angle between the vertical beam and the upper beam, one end of the corner brace is welded to one side of the vertical beam close to the oblique beam, and the other end of the corner brace is welded to one side of the upper beam close to the lower beam.
Through adopting above-mentioned technical scheme, the angle brace plays the supporting role to the entablature, further increase the self intensity of four corners dysmorphism supporting platform frame.
Optionally, in step S1, the support platform frame with four corners and special shapes further includes three stabilizing pipes, one of the stabilizing pipes is fixedly disposed at one end of the upper beam away from the vertical beam and located at one side of the upper beam away from the lower beam, and the other two stabilizing pipes are fixedly disposed at one side of the oblique beam away from the vertical beam, one of the stabilizing pipes is disposed close to the upper beam, and the other stabilizing pipe is disposed close to the lower beam;
after the installation of the four-corner special-shaped supporting platform frame is completed, two ends of a horizontal steel pipe are lapped on two adjacent stabilizing pipes, and the nodes are connected by fasteners to connect the four-corner special-shaped supporting platform frame into a whole.
Through adopting above-mentioned technical scheme, firm pipe is through using horizontal steel pipe and fastener, connects into whole with many pin four corners dysmorphism supporting platform frame, improves holistic stability.
Optionally, in step S2, the first wooden wedge and the second wooden wedge are fixedly connected by a nail.
Through adopting above-mentioned technical scheme, first wood wedge and second wood wedge are connected simply to firm in connection.
Optionally, in step S1, the split bolts are threaded out from the inner side of the shear wall, then the tie plates are sleeved on the split bolts extending out from the outer side of the shear wall, and then the vertical beams are sleeved on the split bolts.
By adopting the technical scheme, the base plate reduces the stress of the connecting point on the shear wall and protects the shear wall from being damaged.
Optionally, in step S1, after the vertical beam is sleeved on the split bolt, double nuts are screwed into two ends of the split bolt.
Through adopting above-mentioned technical scheme, twist double nut at split bolt both ends, prevent to be under construction, produce the vibration, make the nut break away from the bolt.
Optionally, in step S3, the cross section of the wood beam is i-shaped.
Through adopting above-mentioned technical scheme, the I-shaped timber beams can bearing the panel to the material has been practiced thrift.
In summary, the present application includes at least one of the following beneficial technical effects:
1. compared with a tripod support frame, the four-corner special-shaped support platform frame has the advantages that the rigidity of the frame body is improved on the premise that the weight of the frame body is not increased greatly, the flexibility of the end part of the upper cross beam is reduced under the stress condition by arranging the lower cross beam, a safer, smoother and higher-precision foundation can be provided for formwork support, and the four-corner special-shaped support platform frame is simple and convenient to mount through the split bolts;
2. connecting adjacent four-corner special-shaped supporting platform frames together by using horizontal steel pipes and fasteners;
3. through the inclined plane of staggering first wood wedge and the laminating of second wood wedge, the adjustment elevation, it is simple and convenient.
Drawings
Fig. 1 is a side view of the present application.
Fig. 2 is a schematic perspective view of the present application.
Description of reference numerals: 1. a supporting platform frame with special-shaped four corners; 11. erecting a beam; 12. an upper cross beam; 13. a lower cross beam; 14. an oblique beam; 15. bracing; 16. corner brace; 17. a stabilizing tube; 2. oppositely pulling the bolts; 21. a base plate; 3. a fastener; 31. a horizontal steel pipe; 4. wood wedge; 41. a first wood wedge; 42. a second wood wedge; 5. a wood beam; 6. a panel.
Detailed Description
The present application is described in further detail below with reference to figures 1-2.
The embodiment of the application discloses a construction method of a cornice formwork. Referring to fig. 1, a construction method of a cornice formwork includes the following steps:
s1, mounting a four-corner special-shaped supporting platform frame 1:
set up the outer scaffold frame of structure to the structure top layer, for installing four corners dysmorphism supporting platform frame 1 provides operation platform, reserve the space that enough installation four corners dysmorphism supporting platform frame 1 above the scaffold frame, at the close mesh safety net of scaffold frame outside installation level, the safety net scope need surpass 1 outward flange 1m of four corners dysmorphism supporting platform frame. And then pouring the shear wall of the building structure, and installing the quadrangular special-shaped supporting platform frame 1 on the outer side of the shear wall after the strength of the shear wall reaches one hundred percent.
The special-shaped supporting platform frame 1 of four corners includes erecting the roof beam 11, the one end welding of erecting the roof beam 11 has entablature 12, the other end welding has bottom end rail 13, entablature 12 and bottom end rail 13 are parallel to each other, and perpendicular to erects the roof beam 11 respectively, the length of entablature 12 is greater than the length of bottom end rail 13, be connected with sloping 14 between entablature 12 and the bottom end rail 13, the one end of sloping 14 welds in the one end that the entablature 11 was kept away from to entablature 12, the other end welds in the one end that the bottom end rail 13 was kept away.
The vertical beam 11, the upper beam 12, the oblique beam 14 and the upper beam 12 respectively comprise two channel steel with the same specification and model, webs of the two channel steel are relatively close to each other and are connected into a whole through steel plates, one end of each steel plate is welded with the web of one channel steel, and the other end of each steel plate is welded with the web of the other channel steel.
An inclined strut 15 is connected between the vertical beam 11 and the inclined beam 14, the inclined strut 15 is made of square steel, one end of the inclined strut 15 is welded on one side of the vertical beam 11 close to the inclined strut 15, and the other end of the inclined strut 15 is welded on one side of the inclined beam 14 close to the vertical beam 11.
A corner formed between the vertical beam 11 and the upper beam 12 is provided with a corner brace 16, the corner brace 16 is made of double-channel steel, one end of the corner brace is welded on one side of the vertical beam 11 close to the inclined beam 14, and the other end of the corner brace is welded on one side of the upper beam 12 close to the lower beam 13.
The four-corner special-shaped supporting platform frame 1 is fixedly provided with three stabilizing pipes 17, each stabilizing pipe 17 is a circular steel pipe, each stabilizing pipe 17 is welded at one end, far away from the vertical beam 11, of the upper cross beam 12, and is located at one side, far away from the lower cross beam 13, of the upper cross beam 12, the other two stabilizing pipes 17 are welded at one side, far away from the vertical beam 11, of the inclined beam 14, one stabilizing pipe is close to the upper cross beam 12, and the other stabilizing pipe is close to the lower cross beam 13.
The vertical beam 11 is provided with two first bolt holes, one bolt hole is close to the upper cross beam 12, the other bolt hole is close to the lower cross beam 13, and the shear wall is provided with a second bolt hole corresponding to the first bolt hole.
During installation, firstly, the split bolts 2 penetrate out of the inner side of the shear wall, then the split bolts 2 extending out of the outer side of the shear wall are sleeved with the base plates 21, the four-corner special-shaped supporting platform frame 1 is lifted by using a tower crane, manual work is matched, the split bolts 2 penetrate into the first bolt holes and the second bolt holes formed in the vertical beams 11, then double nuts are screwed into the two ends of the split bolts 2 respectively, the double nuts are prevented from vibrating in the construction process, the nut can be loosened, the four-corner special-shaped supporting platform frame 1 is fixed, the verticality of the four-corner special-shaped supporting platform frame 1 is adjusted, after the adjustment is completed, the double nuts are fastened, the requirement on the exposed size of the two ends of the split bolts 2 is met, and the other four-corner special-shaped supporting platform frames 1 are sequentially installed according to.
Referring to fig. 1 and 2, the supporting platform frames 1 are connected by horizontal steel pipes 31 and fasteners 3, two ends of each horizontal steel pipe 31 are lapped on two adjacent stabilizing pipes 17, the nodes are connected by the fasteners 3, the horizontal steel pipes 31 are connected between the adjacent stabilizing pipes 17, all the supporting platform frames 1 are connected into a whole, and the overall stability of the supporting platform is guaranteed.
S2, installing the wood wedge 4, the wood wedge 4 comprises a first wood wedge 41 and a second wood wedge 42, the cross sections of the first wood wedge 41 and the second wood wedge 42 are right-angled trapezoids, the first wood wedge 41 is installed on one side, deviating from the lower beam 13, of the upper beam 12, the inclined surface of the first wood wedge 41 deviates from the upper beam 12, and the first wood wedge 41 is erected on the plurality of upper beams 12 and is perpendicular to the upper beam 12. Install second wood wedge 42 on first wood wedge 41, the laminating of second wood wedge 42 inclined plane and first wood wedge 41 inclined plane sets up, staggers the contact position on first wood wedge 41 and second wood wedge 42 inclined plane to the elevation of adjustment second wood wedge 42 top surface satisfies the design elevation of floor after, uses the nail to fix second wood wedge 42 on first wood wedge 41.
S3, installing a wood beam 5 and a panel 6, installing the wood beam 5 on one side, deviating from the first wood wedge 41, of the second wood wedge 42, wherein the wood beam 5 is an I-shaped wood beam 5, the wood beam 5 and the wood wedge 4 are arranged in the same direction, the wood beam 5 is fixed on the second wood wedge 42, the panel 6 is fixed on one side, deviating from the second wood wedge 42, of the wood beam 5, and the panel 6 is made of a plywood with the thickness of 15 mm.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. A construction method of a cornice formwork is characterized by comprising the following steps:
s1, mounting a four-corner special-shaped supporting platform frame (1): the four-corner special-shaped supporting platform frame (1) comprises a vertical beam (11), an upper cross beam (12) is welded at the upper end of the vertical beam (11), a lower cross beam (13) is welded at the lower end of the vertical beam (11), the upper cross beam (12) and the lower cross beam (13) are parallel to each other and are respectively perpendicular to the vertical beam (11), the length of the upper cross beam (12) is larger than that of the lower cross beam (13), an oblique beam (14) is connected between the upper cross beam (12) and the lower cross beam (13), one end of the oblique beam (14) is welded at one end, away from the vertical beam (11), of the upper cross beam (12), and the other end of the oblique beam is welded at one end, away from; the vertical beam (11) is provided with two first bolt holes, one bolt hole is arranged close to the upper cross beam (12), and the other bolt hole is arranged close to the lower cross beam (13); a second bolt hole corresponding to the first bolt hole is formed in the shear wall, the vertical beam (11) is installed on the shear wall, and the vertical beam is fixedly installed on the outer side of the shear wall through a split bolt (2);
s2, installing a wood wedge (4): the wood wedge (4) comprises a first wood wedge (41) and a second wood wedge (42), the first wood wedge (41) is installed on one surface, deviating from the lower cross beam (13), of the upper cross beam (12), the inclined surface of the first wood wedge (41) deviates from the upper cross beam (12), the second wood wedge (42) is installed on the first wood wedge (41), the inclined surface of the second wood wedge (42) is attached to the inclined surface of the first wood wedge (41), the elevation of the top surface of the second wood wedge (42) is adjusted by staggering the inclined surfaces, attached to the first wood wedge (41) and the second wood wedge (42), and then the first wood wedge (41) is fixedly connected with the second wood wedge (42);
s3, mounting the wood beam (5) and the panel (6): install timber beams (5) in the one side that timber wedge (4) deviate from entablature (12), timber beams (5) and timber wedge (4) syntropy set up, and panel (6) are fixed and are acted as the die block of cornice template in timber beams (5) the one side that deviates from timber wedge (4).
2. The construction method of the cornice formwork according to claim 1, characterized in that: in the step S1, the four-corner special-shaped supporting platform frame (1) further comprises an inclined strut (15), one end of the inclined strut (15) is welded to one side, close to the inclined strut (15), of the vertical beam (11), and the other end of the inclined strut is welded to one side, close to the vertical beam (11), of the inclined beam (14).
3. The construction method of the cornice formwork according to claim 1, characterized in that: in the step S1, the four-corner special-shaped supporting platform frame (1) further comprises corner supports (16) fixedly arranged at included angles of the vertical beam (11) and the upper cross beam (12), one ends of the corner supports (16) are welded to one side, close to the oblique beam (14), of the vertical beam (11), and the other ends of the corner supports are welded to one side, close to the lower cross beam (13), of the upper cross beam (12).
4. The construction method of the cornice formwork according to claim 1, characterized in that: in the step S1, the four-corner special-shaped supporting platform frame (1) further comprises three stabilizing pipes (17), wherein one stabilizing pipe (17) is fixedly arranged at one end, far away from the vertical beam (11), of the upper cross beam (12) and is positioned at one side, far away from the lower cross beam (13), of the upper cross beam (12), the other two stabilizing pipes (17) are fixedly arranged at one side, far away from the vertical beam (11), of the oblique beam (14), one stabilizing pipe is close to the upper cross beam (12), and the other stabilizing pipe is close to the lower cross beam (13);
after the four-corner special-shaped supporting platform frame (1) is installed, two ends of a horizontal steel pipe (31) are lapped on two adjacent stabilizing pipes (17), and the nodes are connected through fasteners (3) to connect the four-corner special-shaped supporting platform frame (1) into a whole.
5. The construction method of the cornice formwork according to claim 1, characterized in that: in step S2, the first wooden wedge (41) and the second wooden wedge (42) are fixedly connected by a nail.
6. The construction method of the cornice formwork according to claim 1, characterized in that: in the step S1, the split bolts (2) penetrate out of the inner side of the shear wall, then the backing plates (21) are sleeved on the split bolts (2) extending out of the outer side of the shear wall, and then the vertical beams (11) are sleeved on the split bolts (2).
7. The construction method of the cornice formwork according to claim 1, characterized in that: in the step S1, after the vertical beam (11) is sleeved on the split bolt (2), double nuts are screwed into two ends of the split bolt (2).
8. The construction method of the cornice formwork according to claim 1, characterized in that: in step S3, the cross section of the wood beam (5) is i-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010956828.XA CN112049415A (en) | 2020-09-12 | 2020-09-12 | Construction method of cornice formwork |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010956828.XA CN112049415A (en) | 2020-09-12 | 2020-09-12 | Construction method of cornice formwork |
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| Publication Number | Publication Date |
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| CN112049415A true CN112049415A (en) | 2020-12-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010956828.XA Pending CN112049415A (en) | 2020-09-12 | 2020-09-12 | Construction method of cornice formwork |
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| CN (1) | CN112049415A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114541750A (en) * | 2022-02-25 | 2022-05-27 | 北京建工建筑产业化投资建设发展有限公司 | Large-span cornice supporting structure and construction process thereof |
| CN115653218A (en) * | 2022-11-08 | 2023-01-31 | 中建八局第二建设有限公司 | Outdoor overhanging eave assembly type construction method |
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| CN111593874A (en) * | 2020-03-27 | 2020-08-28 | 中国建筑第四工程局有限公司 | Supporting system for overweight overhung suspended member of super high-rise residential conversion layer and construction method |
| CN111648620A (en) * | 2020-06-30 | 2020-09-11 | 万达商业规划研究院有限公司 | An installation structure of a cantilever and a support beam |
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| CN106368425A (en) * | 2016-11-16 | 2017-02-01 | 中冶建工集团有限公司 | Movable operating platform for cantilever structure and construction method |
| CN207920042U (en) * | 2018-02-27 | 2018-09-28 | 中国建筑第七工程局有限公司 | A kind of assembly type cantilever supporting frame device |
| CN208329168U (en) * | 2018-05-24 | 2019-01-04 | 北京房修一建筑工程有限公司 | Ball node support device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114541750A (en) * | 2022-02-25 | 2022-05-27 | 北京建工建筑产业化投资建设发展有限公司 | Large-span cornice supporting structure and construction process thereof |
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| CN115653218A (en) * | 2022-11-08 | 2023-01-31 | 中建八局第二建设有限公司 | Outdoor overhanging eave assembly type construction method |
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Application publication date: 20201208 |