CN113833180A - Mounting construction method for main keel of hanging three-limb combined curtain wall - Google Patents
Mounting construction method for main keel of hanging three-limb combined curtain wall Download PDFInfo
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- CN113833180A CN113833180A CN202111130990.7A CN202111130990A CN113833180A CN 113833180 A CN113833180 A CN 113833180A CN 202111130990 A CN202111130990 A CN 202111130990A CN 113833180 A CN113833180 A CN 113833180A
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- 238000010276 construction Methods 0.000 title claims abstract description 27
- 238000009434 installation Methods 0.000 claims abstract description 34
- 238000003466 welding Methods 0.000 claims abstract description 10
- 229910000831 Steel Inorganic materials 0.000 claims description 32
- 239000010959 steel Substances 0.000 claims description 32
- 238000000034 method Methods 0.000 claims description 30
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 210000001503 joint Anatomy 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000011065 in-situ storage Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
- E04B2/88—Curtain walls
- E04B2/96—Curtain walls comprising panels attached to the structure through mullions or transoms
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
- E04G21/142—Means in or on the elements for connecting same to handling apparatus
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
- E04G21/16—Tools or apparatus
- E04G21/162—Handles to carry construction blocks
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- Electromagnetism (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The invention discloses a construction method for installing a hanging three-limb combined curtain wall main keel, which comprises the steps of assembling and forming the three-limb curtain wall main keel on the ground, utilizing a double-carrying-pole lifting tool, penetrating a whole member from an end head of a cantilever truss through lifting equipment such as a tower crane, a crawler crane or a truck crane, lifting the whole member to an installation part, welding a top node, and completing the installation of the member. Need not to assemble in the air, in advance at ground equipment, the component precision is changeed and is guaranteed, reduces high altitude construction work, and the installation is stable, and the security is high, need not in addition repeated installation hoist and mount shoulder pole for installation effectiveness, construction progress is accelerated.
Description
Technical Field
The invention relates to the field of hoisting construction methods, in particular to a method for installing and constructing a main keel of a hanging three-limb combined curtain wall.
Background
With the rapid development of urban construction, the construction industry is changing day by day, and people have higher requirements on the structural characteristics of construction projects, which requires that the construction design is more and more careful, so that the structures with complex shapes will be more and more in construction. In the design of a steel structure, three-limb combined curtain wall main keels are hung at the corners of a structure below a cantilever main truss, each keel is formed by combining three rectangular main keels with the cross section specification of 550, 120, 30 and 40mm and a triangular connection cross beam, the triangular connection cross beams among the three curtain wall main keels need to be inserted into the inner sides of the keels, the assembling difficulty is high, and the three-limb combined curtain wall main keels are 43m long, long in length, large in size and high in construction and installation difficulty.
The traditional installation mode adopts a single-limb hoisting and high-altitude assembling method and a sectional hoisting and high-altitude butt joint method. The single-limb hoisting and high-altitude assembling is to hoist three main keels of the three-limb combined curtain wall main keel respectively and assemble triangular connection cross beams among the three keels at high altitude after the three main keels are hoisted. However, the main keels are easy to deform in the hoisting process of the method, precision control is not utilized, triangular connection cross beams among the three curtain wall main keels need to be inserted into the inner sides of the keels, assembly is carried out at high altitude, and the method is difficult to install, low in efficiency and poor in economical efficiency. The 'sectional lifting and high-altitude butt joint' is characterized in that an electric hoist is welded below a corner cantilever truss, a three-limb combined curtain wall main keel 43m long is segmented, each segment of the main keel is assembled in situ, then the electric hoist is adopted for lifting and mounting, and the adjacent two segments are butted at high altitude. However, the electric hoist is difficult to fix, dangerous to install, large in overhead working amount and not beneficial to installation precision control and safety control.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides an installation and construction method of the main keel of the hanging three-limb combined curtain wall, which can improve the installation efficiency of the main keel of the three-limb combined curtain wall.
The method for installing and constructing the main keel of the hanging three-limb combined curtain wall according to the embodiment of the first aspect of the invention comprises the following steps:
the method comprises the following steps: assembling the three-limb combined curtain wall main keel, wherein the three-limb combined curtain wall main keel comprises a main keel body and a plurality of connection cross beam bodies arranged on the main keel body, and two ends of the main keel body are divided into a first end and a second end;
step two: arranging a fixed carrying pole at a first end of a main keel body, and hanging the fixed carrying pole with a contact cross beam body;
step three: welding a third lifting lug at the second end of the main keel body;
step four: enabling first hoisting equipment to be in place, hoisting the hoisting carrying pole by the first hoisting equipment, and connecting the hoisting carrying pole and the fixed carrying pole through a plurality of steel wire ropes;
step five: enabling the second hoisting equipment to be in place and connected with a third lifting lug on the second end of the main keel body;
step six: lifting the three-limb combined curtain wall main keel by matching the first lifting equipment and the second lifting equipment until the three-limb combined curtain wall main keel reaches a suspended upright state;
step seven: the three-limb combined curtain wall main keel penetrates through the end of the cantilever truss and is lifted to the installation part;
step eight: and welding and fixing the top node of the main keel body and the cantilever truss.
The installation and construction method of the main keel of the hanging three-limb combined curtain wall according to the embodiment of the invention at least has the following beneficial effects: for traditional mounting means, need not to assemble in the air, assemble on ground in advance, the component precision is changeed and is guaranteed, reduces the high altitude and assembles the operation, and the installation is stable, and the security is high, need not in addition repeated installation hoist and mount shoulder pole, promotes the installation effectiveness.
According to some embodiments of the invention, in step four: first lifting lugs are respectively welded at two ends of the fixed carrying pole, and two second lifting lugs are respectively welded at two ends of the hoisting carrying pole, so that the fixed carrying pole and a steel wire rope between the hoisting carrying poles are connected through the first lifting lugs and the second lifting lugs.
First lug, second lug are all fixed through the welded mode for joint strength is big, and set up first lug, second lug and make wire rope and fixed shoulder pole and hoist and mount the connected of shoulder pole firm enough, and accelerate connection speed.
According to some embodiments of the invention, in step four: the plurality of steel wire ropes are divided into hanging steel wire ropes and two connecting steel wire ropes, two ends of each hanging steel wire rope are respectively connected with the two second lifting lugs on the upper side of the hoisting carrying pole, one ends of the two connecting steel wire ropes are respectively connected with the two second lifting lugs on the lower side of the hoisting carrying pole, the steel wire ropes are hung on a lifting hook of the first hoisting equipment, and the other ends of the two connecting steel wire ropes are respectively connected with the first lifting lugs of the fixed carrying pole.
Because fixed shoulder pole will pass three limbs combination formula curtain main joist, hang the hoist and mount shoulder pole in through hanging wire rope earlier on first lifting device's the lifting hook, be connected with fixed shoulder pole again, it is comparatively convenient to connect.
According to some embodiments of the invention, the first hoisting device and the second hoisting device are hoisted, the three-limb combined curtain wall main keel is suspended, and then the first hoisting device gradually lifts the first end of the main keel body until the three-limb combined curtain wall main keel reaches a suspended upright state. When the main keel body is lifted, the second end of the main keel body moves relative to the ground, and the lifting is hindered. The second end of the main keel body is in a suspended state, so that the three-limb combined type curtain wall main keel can be conveniently lifted, suspended and erected.
According to some embodiments of the invention, in step six: and the first hoisting equipment lifts the first end of the main keel body step by step, and the second hoisting equipment moves correspondingly according to the movement of the first end of the main keel body. In the actual lifting process, when the second hoisting equipment is lifted upwards according to the first end of the main keel body, the second end of the main keel body is gradually close to the first end of the main keel body, and the second hoisting equipment is correspondingly moved and matched, so that the three-limb combined type curtain wall main keel can be hung vertically.
According to some embodiments of the invention, the method for installing and constructing the main keel of the hanging three-limb combined curtain wall further comprises the following steps:
step nine: arranging and assembling jig frames.
The assembling jig frame is beneficial to assembling the main keel of the three-limb combined curtain wall.
According to some embodiments of the invention, the first and second lifting devices are one of a tower crane, a truck crane, or a crawler crane. The tower crane, the truck crane and the crawler crane can be used for hoisting the main keel of the three-limb combined curtain wall.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the embodiments of the invention.
Drawings
The invention is further described with reference to the following figures and examples, in which:
FIG. 1 is a schematic diagram of an embodiment of the present invention, wherein two arrows indicate upward and downward directions, respectively;
FIG. 2 is a partial schematic view of a hoist according to an embodiment of the present invention, wherein two arrows respectively indicate upward and downward directions;
FIG. 3 is a partial schematic view of a hoist according to an embodiment of the present invention, wherein two arrows respectively indicate upward and downward directions;
fig. 4 is a schematic view of a top pin joint of a main runner according to an embodiment of the present invention, in which two arrows respectively indicate upward and downward directions;
figure 5 is a schematic cross-sectional view of a main runner of an embodiment of the present invention with two arrows indicating upward and downward directions, respectively.
Reference numerals:
the three-limb combined curtain wall main keel 100, the fixed carrying pole 200, the main keel body 110, the connection cross beam body 120, the hoisting carrying pole 300 and the cantilever truss 400.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, the meaning of a plurality is one or more, the meaning of a plurality is two or more, and the above, below, exceeding, etc. are understood as excluding the present numbers, and the above, below, within, etc. are understood as including the present numbers. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.
In the description of the present invention, reference to the description of the terms "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
With reference to fig. 1 to 5, the invention makes the following examples:
in some building structures, for aesthetic purposes, structural needs, etc., many large buildings, such as museums, use a "steel frame + buckling restrained brace" structural system, which is composed of a main frame structure, a suspension structure and a bridge structure. Because of the large size of the building, the number of suspended structures may need to be one hundred to two hundred in a single building project, and the number of suspended structures is large, there is a need for an installation method that speeds up the installation of suspended structures.
Wherein the installation of the three-limb combined curtain wall main keel 100 is more difficult. The three-limb combined curtain wall main keel 100 is formed by combining three rectangular three-limb combined curtain wall main keels 100+ triangular connection cross beam bodies 120 with the section specification of 550 x 120 x 30 x 40mm, namely the cross sections of the three-limb combined curtain wall main keels 100 are in an irregular state, the length is as long as 43 meters, and the three-limb combined curtain wall main keels 100 need to be hung below a cantilever main truss. However, the general construction project engineering adopts the traditional installation methods, such as the installation by the method of single-limb hoisting and high-altitude assembling and the installation by the method of subsection hoisting and high-altitude butt joint, which all have the defect of more high-altitude operations. The embodiment of the invention provides a construction method for installing a main keel of a hanging three-limb combined curtain wall, which comprises the following steps:
the method comprises the following steps: assembling the three-limb combined type curtain wall main keel 100, wherein the three-limb combined type curtain wall main keel 100 comprises a main keel body 110 and a plurality of connection cross beam bodies 120 arranged on the main keel body 110, and two ends of the main keel body 110 are divided into a first end and a second end;
referring to fig. 3 and 5, since the length of the main keel body 110 is 43 meters, and the length of the two sides connecting the cross beam body 120 is 2.2 meters, and the width is 0.3 meter, the length of the assembled three-limb combined curtain wall main keel 100 can reach 43 meters at most, and the height of 16 floors of common residential buildings is estimated, and the three-limb combined curtain wall main keel has the characteristics of large volume and heavy weight. Therefore, in the related technology, the main keels are segmented, the main keels of each segment are assembled in situ, then the main keels are lifted and installed by the electric hoist, and the adjacent two segments are butted at high altitude. However, the electric hoist is difficult to fix and dangerous to install, and needs to lift multiple sections, for example, a three-limb combined curtain wall main keel 100 with a length of 43 meters is divided into five sections to lift, the electric hoist is needed to lift the three-limb combined curtain wall main keel 100 of the first section with a pin at the top, and then the corresponding three-limb combined curtain wall main keel 100 of the second section is lifted, and during lifting, the upper end of the three-limb combined curtain wall main keel 100 of the second section is needed to correspond to the lower end of the three-limb combined curtain wall main keel 100 of the first section, two adjacent sections are carried out in the middle of high altitude, and the length of the three-limb combined curtain wall main keel 100 after segmentation still has a length of 9 meters and a heavy weight, and is butted in the high altitude, so that the difficulty of accurately butting, moving and controlling the electric hoist is great, and the installation accuracy control is not facilitated, and a constructor is needed to weld two adjacent sections butted in the high altitude, after welding, the steps are repeated, so that the time is long, the existing overhead work is large, the efficiency is low, and the safety is reduced. According to the embodiment of the invention, the three-limb combined type curtain wall main keel 100 is integrally assembled on the ground, so that the safety is improved during assembly, and the three-limb combined type curtain wall main keel does not need to be segmented and assembled. However, the main keel members 110 are easy to deform in the manner of single-limb hoisting and high-altitude assembling, precision control is not utilized, and the connection cross beam bodies 120 among the three main keel members 110 need to be inserted into the inner sides of the main keel members 110, so that the assembly is carried out at high altitude, the installation is difficult, the efficiency is low, and the economy is poor. Therefore, the mode of field assembly is adopted, the transportation is convenient, the butt joint and the assembly in the high altitude are not needed, and the high altitude operation is reduced.
Step two: arranging a fixed carrying pole 200 at a first end of the main keel body 110, and hanging the fixed carrying pole 200 with the connection cross beam body 120;
the fixing carrying pole 200 plays a role in supporting the three-limb combined curtain wall main keel 100 during hanging. Compared with the method that the three-limb combined type curtain wall main keel 100 is directly hung by a rope or a lifting lug is welded at the hanging position for firmness, the fixing carrying pole 200 has the advantages of quick fixing and good fixing effect, and the fixing carrying pole 200 can be repeatedly used.
Step three: a third lifting lug is welded at the second end of the main keel body 110;
the three-limb combined curtain wall main keel 100 is long in length, large in size and heavy in weight, and is unstable in fixation in the moving process. In the hoisting process, if the fixing is unstable, the three-limb combined curtain wall main keel 100 may suddenly fall off in the hoisting process, the impact force is large, the construction building and the construction equipment on site are damaged, and the personnel safety is caused by constructors. Therefore, the fixation is unstable, so that serious property loss can be caused, the personal safety of constructors is damaged, the engineering is delayed, and the whole construction progress is greatly influenced. The mode that adopts the welding third lug is used for the fixed of hoist and mount in-process strong, the security of stability more firm, security height of fixing.
Step four: enabling first hoisting equipment to be in place, hoisting the hoisting carrying pole 300 by the first hoisting equipment, and connecting the hoisting carrying pole 300 and the fixed carrying pole 200 by a plurality of steel wire ropes;
step five: positioning the second lifting device in position and connecting the second lifting eye to the second end of the main keel body 110;
because the length of three-limb combined curtain wall main keel 100 is long, it is bulky, it is very inconvenient to move, and weld the third lug in the bottom, it is equivalent to set up two strong points at the top and the bottom of three-limb combined curtain wall main keel 100, move three-limb combined curtain wall main keel 100, the fixed shoulder pole 200 that the top supported for upper portion is then the support to three-limb combined curtain wall main keel 100, it is first by fixed shoulder pole 200 with three-limb combined curtain wall main keel 100 lift, make three-limb combined curtain wall main keel 100 slope set up, then the second lifting device lifts the bottom of three-limb combined curtain wall main keel 100, make three-limb combined curtain wall main keel 100 unsettled.
Step six: the three-limb combined curtain wall main keel 100 is lifted through the cooperation of the first hoisting equipment and the second hoisting equipment until the three-limb combined curtain wall main keel 100 reaches a suspended upright state;
step seven: the three-limb combined curtain wall main keel 100 penetrates through the end of the cantilever truss 400 and is lifted to an installation part;
because the three-limb combined curtain wall main keel 100 is hung below the main truss, the three-limb combined curtain wall main keel 100 is conveniently hung below the main truss by combining the fixed carrying pole 200 and the hoisting carrying pole 300.
Step eight: and (4) welding and fixing the top node of the main keel body 110 and the cantilever truss 400. And finally, welding the top node of the main keel body 110 with the cantilever truss 400 to complete the installation of the three-limb combined type curtain wall main keel 100.
For traditional mounting means, need not to assemble in the air, in advance at ground equipment, the component precision is changeed and is guaranteed, reduces the high altitude construction operation, and the installation is stable, and the security is high, need not in addition repeated installation hoist and mount shoulder pole 300 for installation effectiveness, the construction progress is accelerated, and factor of safety is higher. Directly promote three-limb combined curtain wall main joist 100's one end, make it be upright state in-process when not adopting second lifting device hoist and mount third lug, three-limb combined curtain wall main joist 100 can take place the swing, perhaps roll, do not control three-limb combined curtain wall main joist 100's removal well, take place danger easily.
Further, the fourth step further includes: first lifting lugs are respectively welded at two ends of the fixed carrying pole 200, and two second lifting lugs are respectively welded at two ends of the hoisting carrying pole 300, so that the steel wire ropes between the fixed carrying pole 200 and the hoisting carrying pole 300 are connected through the first lifting lugs and the second lifting lugs.
The first lifting lug and the second lifting lug are fixed in a welding mode, so that the connection strength is high, the first lifting lug and the second lifting lug are arranged, the steel wire rope is connected with the fixed carrying pole 200 and the fixed carrying pole 200 firmly enough, and the connection speed is accelerated.
Further, in the fourth step: the plurality of steel wire ropes are divided into hanging steel wire ropes and two connecting steel wire ropes, two ends of each hanging steel wire rope are respectively connected with the two second lifting lugs on the upper side of the hoisting carrying pole 300, one ends of the two connecting steel wire ropes are respectively connected with the two second lifting lugs on the lower side of the hoisting carrying pole 300, the steel wire ropes are hung on a lifting hook of the first hoisting equipment, and the other ends of the two connecting steel wire ropes are respectively connected with the first lifting lugs of the fixed carrying pole 200.
Because fixed shoulder pole 200 will pass three limbs combination formula curtain main joist 100, hang hoist and mount shoulder pole 300 on first lifting device's lifting hook through hanging wire rope earlier, be connected with fixed shoulder pole 200 again, it is comparatively convenient to connect.
The first hoisting equipment and the second hoisting equipment are hoisted, the three-limb combined type curtain wall main keel 100 is suspended, and then the first hoisting equipment gradually lifts the first end of the main keel body 110, so that the three-limb combined type curtain wall main keel 100 is in a suspended upright state. When lifted, the second end of the main keel 110 moves relative to the ground, which hinders the lifting. The second end of the main keel body 110 is in a suspended state, so that the three-limb combined type curtain wall main keel 100 can be conveniently lifted, suspended and erected.
Further, the sixth step further includes: when the first hoisting device lifts the first end of the main keel body 110 step by step, the second hoisting device moves correspondingly according to the movement of the first end of the main keel body 110. In the actual lifting process, when the second hoisting device is lifted upwards according to the first end of the main keel body 110, the second end of the main keel body 110 is gradually close to the first end of the main keel body 110, and the second hoisting device is correspondingly moved and matched, so that the three-limb combined curtain wall main keel 100 can be hung and erected conveniently.
The construction method for installing the main keel of the hanging three-limb combined curtain wall further comprises the following steps:
step ten: the hanging ring on the fixed carrying pole 200 is removed, and the hoisting carrying pole 300 is hoisted to the ground;
the method comprises the following steps: the stationary carrying pole 200 on the member is removed.
After the installation, the hoisting carrying pole 300 is hoisted to the ground by utilizing the characteristic that the hoisting carrying pole 300 is connected with the hoisting carrying pole 300 in the arrangement way, and is connected with the next fixed carrying pole 200 which is arranged at the upper part of the main keel body 110 and is below the connection cross beam body 120, so as to prepare for the next hoisting; the fixed carrying pole 200 is disassembled for next installation, and the hoisting carrying pole 300 are repeatedly utilized. When the fixed carrying pole 200 on the component is removed, a steel ladder stand or a high-altitude vehicle is adopted to reach the top end of the main keel body 110, the fixed carrying pole 200 is removed, and the next hoisting is carried out.
Further, the construction method for installing the main keel of the hanging three-limb combined curtain wall further comprises the following nine steps: arranging and assembling jig frames.
Specifically, the assembling jig frame is arranged according to a drawing, and the assembling jig frame is favorable for assembling the three-limb combined type curtain wall main keel 100.
According to some embodiments of the invention, the first and second lifting devices are one of a tower crane, a truck crane, or a crawler crane. The tower crane, the truck crane and the crawler crane are independently constructed on the construction site for hoisting, the construction on the installed building is not needed, the installation difficulty is reduced, particularly, the truck crane is movable in the installation process, the hoisting is more convenient, the tower crane, the truck crane and the crawler crane can carry out the hoisting of the three-limb combined curtain wall main keel 100, the electric hoist is not needed to be installed, and the hoisting mode is simple.
According to some embodiments of the present invention, the connection cross beam body 120 is the first connection cross beam body 120 at the top end of the main keel body 110, and since the fixed carrying pole 200 and the hoisting carrying pole 300 are arranged to be lifted in a matching manner, when the lifting carrying pole is lifted, the hoisting carrying pole 300 is located above the fixed carrying pole 200, and the hoisting carrying pole 300 is located above the top end of the main keel body 110, the closer the position of the connection cross beam body 120 is to the top end of the main keel body 110, the shorter the connection steel wire rope is between the fixed carrying pole 200 and the hoisting carrying pole 300.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention. Furthermore, the embodiments of the present invention and the features of the embodiments may be combined with each other without conflict.
Claims (7)
1. A mounting construction method for a main keel of a hanging three-limb combined curtain wall is characterized by comprising the following steps:
the method comprises the following steps: assembling the three-limb combined curtain wall main keel (100), wherein the three-limb combined curtain wall main keel (100) comprises a main keel body (110) and a plurality of connection cross beam bodies (120) arranged on the main keel body (110), and two ends of the main keel body (110) are divided into a first end and a second end;
step two: arranging a fixed carrying pole (200) at a first end of a main keel body (110), and hanging the fixed carrying pole (200) with a connection cross beam body (120);
step three: welding a third lifting lug at the second end of the main keel body (110);
step four: enabling first hoisting equipment to be in place, hoisting the hoisting carrying pole (300) by the first hoisting equipment, and connecting the hoisting carrying pole (300) and the fixed carrying pole (200) through a plurality of steel wire ropes;
step five: placing the second lifting device in position and connecting the second lifting device with a third lifting lug on the second end of the main keel body (110);
step six: the three-limb combined curtain wall main keel (100) is lifted through the cooperation of the first hoisting equipment and the second hoisting equipment until the three-limb combined curtain wall main keel (100) reaches a suspended upright state;
step seven: the three-limb combined curtain wall main keel (100) penetrates through the end of the cantilever truss (400) and is lifted to the installation part;
step eight: and (3) welding and fixing the top node of the main keel body (110) and the cantilever truss (400).
2. The installation and construction method of the main keel of the hanging three-limb combined curtain wall according to claim 1, wherein in the fourth step: first lifting lugs are respectively welded at two ends of the fixed carrying pole (200), and two second lifting lugs are respectively welded at two ends of the hoisting carrying pole (300), so that steel wire ropes between the fixed carrying pole (200) and the hoisting carrying pole (300) are connected through the first lifting lugs and the second lifting lugs.
3. The method for installing and constructing the main keel of a hanging three-limb combined curtain wall according to claim 2, wherein in the fourth step, the steel wire ropes are divided into a hanging steel wire rope and two connecting steel wire ropes, two ends of the hanging steel wire rope are respectively connected with two second lifting lugs on the upper side of the hanging carrying pole (300), one ends of the two connecting steel wire ropes are respectively connected with two second lifting lugs on the lower side of the hanging carrying pole (300), then the steel wire ropes are hung on a lifting hook of the first hoisting equipment, and the other ends of the two connecting steel wire ropes are respectively connected with a first lifting lug of the fixed carrying pole (200).
4. The method for installing and constructing the main keel of the hanging three-limb combined curtain wall according to claim 1, wherein in the sixth step: the first hoisting equipment and the second hoisting equipment are hoisted, the three-limb combined curtain wall main keel (100) is suspended, and then the first hoisting equipment gradually lifts the first end of the main keel body (110), so that the three-limb combined curtain wall main keel (100) is in a suspended and upright state.
5. The method for installing and constructing the main keel of a hanging three-limb combined curtain wall according to claim 4, wherein in the sixth step, the first hoisting device lifts the first end of the main keel (100) of the three-limb combined curtain wall step by step, and the second hoisting device moves correspondingly according to the movement of the first end of the main keel body (110).
6. The method for installing and constructing the main keel of the hanging three-limb combined curtain wall according to claim 1, wherein the method for installing and constructing the main keel of the hanging three-limb combined curtain wall further comprises the following steps:
step nine: arranging and assembling jig frames.
7. The method for installing and constructing the main keel of a hanging three-limb combined curtain wall according to claim 1,
the first hoisting equipment and the second hoisting equipment are one of tower cranes, truck cranes or crawler cranes.
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