CN209855253U - Auxiliary fixing device for mounting roof super-long steel beam - Google Patents

Auxiliary fixing device for mounting roof super-long steel beam Download PDF

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Publication number
CN209855253U
CN209855253U CN201920465701.0U CN201920465701U CN209855253U CN 209855253 U CN209855253 U CN 209855253U CN 201920465701 U CN201920465701 U CN 201920465701U CN 209855253 U CN209855253 U CN 209855253U
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China
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steel
fixing
roof
installation
layer structural
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CN201920465701.0U
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Inventor
张秀川
朱明华
李卓文
耿东各
袁庆龙
林佐江
赵宝
张天宇
张帅
李广大
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China Construction First Group Corp Ltd
China Construction First Group Construction and Development Co Ltd
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China Construction First Group Corp Ltd
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Abstract

The utility model relates to a building girder steel installation technical field discloses an auxiliary fixture for installation of roof overlength girder steel. The utility model is detachably arranged on the top layer structural plate and is used for fixing the lifted short steel beam section, one end of the short steel beam section is fixedly connected with the upward returning beam through the foundation bolt, and the upper surface of the other end is respectively connected with the temporary pull-fixing component and the diagonal bracing pull-fixing rod; the bottom of the supporting upright post is fixed with the top layer structural plate through the combined base; the top end of the first diagonal brace is connected with the top of the supporting upright post, the bottom end of the first diagonal brace is connected with the top layer structural slab, and a vertical surface formed by the first diagonal brace, the supporting upright posts and the top layer structural slab in a surrounding mode and the ultra-long steel beam are located in the same plane; one end of the temporary pulling and fixing component is connected with the top of the supporting upright post, and the other end of the temporary pulling and fixing component is connected with the upper surface of the short steel beam section; the inclined support pulling and fixing rod is positioned below the temporary pulling and fixing component and is arranged in parallel with the temporary pulling and fixing component. The utility model discloses simple structure can dismantle used repeatedly, and occupation space is little, reduces tower crane use quantity.

Description

Auxiliary fixing device for mounting roof super-long steel beam
Technical Field
The utility model relates to a building girder steel installation technical field especially relates to an auxiliary fixture for installation of roof overlength girder steel.
Background
With the progress of construction technology, the form of building structures is diversified, and the combination of steel structures, steel structures and concrete structures is widely applied. The structure that shaped steel is the roof beam, for the post is used for having the novel large-scale public building of characteristics such as span is big, story height, height span change are big, has that the dead weight is lighter, advantages such as the convenient high efficiency of being under construction.
However, the traditional steel beam installation method is generally directly hoisted through a tower crane, but for an ultra-long steel beam with the length exceeding 15m, the transportation and hoisting difficulty is high, the hoisting weight of the tower crane and the weight limit of the steel beam are required to be comprehensively considered, multiple tower cranes are adopted to hoist the steel beam simultaneously, multiple tower crane devices are required to be prepared simultaneously on site, the construction workload of installing and disassembling the tower crane foundation and the tower crane is high, the construction cost is greatly improved, the arrangement of the multiple tower cranes has large influence on the design and arrangement of the construction site, and the difficulty of construction design is increased.
SUMMERY OF THE UTILITY MODEL
The utility model provides a simple structure can dismantle used repeatedly, and occupation space is little, reduces the hoist and mount method that is used for roof overlength girder steel installation's auxiliary fixture and girder steel of tower crane use quantity.
The technical problem to be solved is that: the installation of current overlength girder steel adopts a plurality of tower cranes cooperation, hoist simultaneously mostly, and the tower crane occupies a large amount, and on-the-spot turnover flexibility is poor, and construction work volume is big, and the degree of difficulty is high, and is with high costs, and it is longer to occupy construction cycle.
In order to solve the technical problem, the utility model adopts the following technical scheme:
the utility model discloses an auxiliary fixing device for the installation of a roof super-long steel beam, which is detachably installed on a top layer structural slab and is used for temporarily fixing a lifted short steel beam section, and comprises a supporting upright post, a first diagonal brace, a temporary pull-fixing component and a diagonal brace pull-fixing rod; one end of the short steel beam section is fixedly connected with the upward returning beam through a foundation bolt, and the upper surface of the other end of the short steel beam section is respectively connected with the temporary pull-fixing component and the inclined strut pull-fixing rod;
the supporting upright posts are arranged by being attached to the inner side wall of the upward returning beam of the roof, and the bottom of the supporting upright posts is fixed with the top layer structural slab through the combined base;
the top end of the first diagonal brace is detachably connected with the top of the supporting upright post, the bottom end of the first diagonal brace is detachably connected with a third embedded part, the third embedded part is positioned on the structural beam of the top-layer structural plate, and a vertical surface formed by the first diagonal brace, the supporting upright post and the top-layer structural plate in a surrounding mode is positioned in the same plane as the overlong steel beam;
the temporary pulling and fixing component comprises a chain block and a steel wire rope, one end of the chain block is detachably connected with the top of the support upright post, and the other end of the chain block is detachably connected with the upper surface of the short steel beam section through the steel wire rope;
the inclined support pulling and fixing rod is located below the temporary pulling and fixing component and arranged in parallel with the temporary pulling and fixing component, the top end of the inclined support pulling and fixing rod is detachably connected with the support upright post, and the bottom end of the inclined support pulling and fixing rod is detachably connected with the upper surface of the short steel beam section.
The utility model is used for supplementary fixing device of roof overlength girder steel installation, it is further, the overlength girder steel still includes long girder segment, and the length ratio of short girder segment and long girder segment is 1: 3-4.
The utility model is used for supplementary fixing device of roof overlength steel beam installation, it is further, still include the second diagonal brace, the second diagonal brace top can be dismantled with the support post top and be connected, and the bottom can be dismantled with the top layer structural slab and be connected, and the second diagonal brace encloses the facade that closes and form with support pole setting and top layer structural slab, encloses the facade mutually perpendicular that closes and form with first diagonal brace, support pole setting and top layer structural slab.
The utility model is used for supplementary fixing device of roof overlength girder steel installation, it is further, the steel construction that the combination base is the cuboid form is fixed through first built-in fitting and top layer structural slab, and returns the roof beam fixedly on through second built-in fitting and top layer structural slab.
The utility model is used for supplementary fixing device of roof overlength girder steel installation, it is further, the degree of depth that first built-in fitting burdened top layer structural slab is not less than 100mm, and the degree of depth that the second built-in fitting burdened the upper back roof beam is not less than 300 mm.
The utility model is used for supplementary fixing device of roof overlength girder steel installation, it is further, first diagonal brace is H shaped steel, and the contained angle between the top layer structural slab is 30-60.
The utility model is used for supplementary fixing device of roof overlength girder steel installation, it is further, the bracing is drawn solid pole and is H shaped steel, and is 30-60 with the contained angle between the short steel beam section.
The utility model is used for supplementary fixing device of roof overlength girder steel installation, it is further, the support post is H shaped steel, highly is no longer than 6 m.
The utility model is used for supplementary fixing device of roof overlength girder steel installation, it is further, the support post bottom is provided with the closing end board, and the closing end board passes through the bolt and can dismantle fixedly with the combination base, the bolt is M22 high strength bolt.
The utility model is used for supplementary fixing device of roof overlength girder steel installation compares with prior art, has following beneficial effect:
the utility model is used for supplementary fixing device of roof overlength girder steel installation simple structure can dismantle with the built-in fitting on the foundation structure and be connected, and the installation is dismantled that the degree of difficulty is little, the process is few, and the efficiency of construction is high. Form stable framework through support post and diagonal brace, replace one section girder steel that tower crane equipment is fixed temporarily encorbelment, the tower crane of liberating can be used for hoisting another section girder steel, has reduced the demand of construction to tower crane equipment, and the construction work volume that has significantly reduced has reduced construction cost.
The auxiliary fixing device of the utility model takes the support upright rod as the main drawing component, and is matched with the first diagonal brace and the second diagonal brace to draw and fix the support upright rod from two mutually perpendicular directions and side directions, so that the stability is strong, the bearing capacity is good, and the safety coefficient is high; and the auxiliary fixing device is detachably connected with the top layer structural slab and the upward returning beam, so that the auxiliary fixing device can be detached and reused, the field turnover flexibility is good, and the construction cost is reduced.
The utility model discloses utilize auxiliary fixture's girder steel hoist and mount method to divide into the different length two sections of length of overlength girder steel, segment hoist and mount, not only alleviateed the dead weight of hoist and mount girder steel section, solved the big problem of the whole large-scale girder steel hoist and mount degree of difficulty, need not to choose for use the tower crane equipment of hanging heavy greatly for a small amount of heavy component, reduced construction cost, greatly reduced the transportation degree of difficulty of overlength girder steel moreover, stack and transport easier operation more.
The auxiliary fixing device for mounting the roof overlong steel beam of the present invention will be further described with reference to the accompanying drawings.
Drawings
Fig. 1 is a schematic structural view of the auxiliary fixing device for mounting the roof overlong steel beam of the present invention;
fig. 2 is a side view of the auxiliary fixing device for mounting the roof overlong steel beam of the present invention;
fig. 3 is a schematic view of the construction state in step six.
Reference numerals:
1-supporting a column; 2-a first diagonal strut; 3-a second diagonal brace; 4-bracing a pull-fixing rod; 51-chain inversion; 52-a steel cord; 61-short steel beam section; 62-long steel beam section; 71-top layer structural panels; 72-upward returning beam; 73-structural beams; 81-a first embedment; 82-a second embedment; 83-a third embedment; 84-anchor bolts; 9-combined base.
Detailed Description
As shown in fig. 1 and 2, the utility model discloses an auxiliary fixture demountable installation for roof overlength girder steel installation is on top layer structural slab 71 for temporary fixation hangs short girder segment 61, including support post 1, first diagonal brace 2, second diagonal brace 3, temporarily draws solid subassembly and diagonal brace to draw solid pole 4, and each overlength girder steel correspondence sets up one set of auxiliary fixture.
The super-long steel beam is used for determining the segmentation position of the super-long steel beam according to the hoisting weight of the tower crane, the bearing capacity of the auxiliary fixing device and the self weight of the steel beam, generally segmenting the super-long steel beam at the position of 1/4-1/3, and dividing the super-long steel beam into a short steel beam section 61 and a long steel beam section 62; after the short steel beam section 61 is fixed by the auxiliary fixing device, one tower crane device is liberated to hoist the long steel beam section 62, and then the long steel beam section 62 and the short steel beam section 61 are connected at high altitude to complete the installation of the ultra-long steel beam.
Or according to the construction situation, the long steel beam section 62 is selected to be installed firstly, and is fixed by adopting an auxiliary fixing device, and then the short steel beam section 61 is hoisted to be in high-altitude butt joint with the long steel beam section 62 for fixing.
The support columns 1 are H-shaped steel, serve as a pulling rod and are used for fixing the short steel beam sections 61, the H-shaped steel of HW200 x 8 x 12 is used in the embodiment, the inner side wall of the return beam 72 is arranged on the attached roof, the bottom of the H-shaped steel is fixed with the top structural plate 71 through the combined base 9, and the height of the H-shaped steel is not more than 6 m.
The combined base 9 is a cuboid-shaped steel structure and is formed by enclosing a steel plate with the thickness of 12mm or more, a stiffening rib is arranged inside the combined base 9, the combined base 9 is fixed with a top-layer structural plate 71 through a first embedded part 81, the combined base is fixed with an upward returning beam 72 of the top-layer structural plate 71 through a second embedded part 82, the depth of the first embedded part 81 embedded into the top-layer structural plate 71 is not less than 100mm, the depth of the second embedded part 82 embedded into the upward returning beam 72 is not less than 300mm, a sealing end plate is arranged at the bottom of the supporting upright post 1 and is a Q34B rectangular steel plate with the thickness of 16mm, the sealing end plate is detachably fixed with the combined base 9 through bolts, the used bolts are M22 high-strength bolts, and connecting lug plates are respectively arranged on the outer side walls of two side flange plates.
The first inclined stay bar 2 is made of H-shaped steel, an included angle between the H-shaped steel of HW200 x 8 x 12 and the top-layer structural plate 71 is 30-60 degrees, two ends of the H-shaped steel are respectively welded with connecting end plates, the connecting end plate at the top is detachably connected with the connecting lug plate at the top of the supporting upright post 1 through bolts, the connecting end plate at the bottom is detachably connected with a third embedded part 83 through bolts, the third embedded part 83 is positioned on the structural beam 73 of the top-layer structural plate 71, and the depth of the embedded structural beam 73 is not less than 300 mm; the vertical surface formed by enclosing the first diagonal brace 2, the supporting vertical rods and the top layer structural plate 71 and the super-long steel beam are positioned in the same plane and used for stabilizing the supporting upright 1 and transmitting the tensile force.
After the short steel beam section 61 is lifted by tower crane equipment, one end of the short steel beam section is fixedly connected with the upward returning beam 72 through the foundation bolt 84, and the upper surface of the other end of the short steel beam section is provided with a connecting lug plate which is respectively connected with the temporary tension and fixation assembly and the inclined strut tension and fixation rod 4.
The temporary pulling and fixing component comprises a chain block 51 and a steel wire rope 52, one end of the chain block 51 is detachably connected with a connecting lug plate at the top of the support upright post 1, and the other end of the chain block is detachably connected with the connecting lug plate on the upper surface of the short steel beam section 61 through the steel wire rope 52 and is temporarily fixed when the short steel beam section 61 is positioned and adjusted.
Bracing pull rod 4 is H shaped steel to one side, use in this embodiment be HW 200X 8X 12's H shaped steel, be located and draw solid subassembly below temporarily, draw solid subassembly parallel arrangement with temporarily, and be 30-60 with the contained angle between the short steel beam section 61, both ends weld respectively and are provided with the connection end plate, the connection end plate at top passes through the bolt and can dismantle with support post 1 and be connected, the connection end plate of bottom passes through the bolt and can dismantle with the connection otic placode on the short steel beam section 61 upper surface and be connected, be used for replacing the fixed overhead short steel beam section 61 of tower crane equipment, in order to liberate a tower crane equipment, reduce the demand quantity of tower crane in the installation.
The second diagonal brace 3 is H-shaped steel and is used for laterally fixing the support upright 1, so that the auxiliary fixing devices of adjacent ultra-long steel beams are connected into a whole, and the bearing capacity of the auxiliary fixing devices is improved, in the embodiment, the H-shaped steel of HW200 x 8 x 12 is used, two ends of the H-shaped steel are respectively welded with connecting end plates, the connecting end plate at the top is detachably connected with a connecting lug plate arranged at the top of the support upright 1 through bolts, the connecting end plate at the bottom is detachably connected with an embedded part in the top layer structural plate 71 through bolts, and a vertical face formed by the second diagonal brace 3, the support upright and the top layer structural plate 71 in a surrounding mode is mutually vertical to a vertical face formed by the first diagonal brace 2, the support upright and the top layer structural plate 71 in a surrounding; in this embodiment, the connecting end plate at the bottom of the second diagonal brace 3 is detachably connected to the first embedded part 81 in the adjacent auxiliary fixing device through a bolt.
Utilize the utility model discloses a hoist and mount method that is used for roof overlength girder steel installation's supplementary fixing device carries out girder steel installation, including following step:
step one, segmenting an ultra-long steel beam: according to the factors such as the hoisting weight of the tower crane, the length and the dead weight of the steel beam, the bearing capacity of the auxiliary fixing device, the connection mode of the steel beam subsection connection node and the like, the super-long steel beam is prefabricated in a subsection mode;
generally, the determined segmented nodes divide the super-long steel beam into two sections at the position 1/4-1/3 of the super-long steel beam, and the two sections are respectively hoisted and butted at high altitude;
step two, setting an embedded part: determining the arrangement positions of the embedded parts according to construction design requirements, installing a first embedded part 81, a second embedded part 82 and a third embedded part 83 during civil construction of the foundation structure, accurately measuring the axis position, the elevation and the plane position, and retesting the embedded parts again by using a total station after concrete pouring is finished so as to ensure that the embedded parts have no deviation and are timely adjusted if the deviation exists;
step three, installing an auxiliary fixing device: welding and fixing the combined base 9 with a first embedded part 81 and a second embedded part 82, connecting and fixing the support upright 1 with the combined base 9 by using an M22 high-strength bolt, then installing a first diagonal brace 2 and a second diagonal brace 3, and arranging a temporary pulling and fixing assembly on the support upright 1;
step four, hoisting and adjusting the short steel beam section 61: hoisting the short steel beam section 61 by using tower crane equipment, fixing one end of the short steel beam section 61 on the upward returning beam 72 through a foundation bolt 84, connecting the other end of the short steel beam section 61 with the temporary pulling and fixing component, and adjusting the levelness of the short steel beam section 61 through a chain block 51;
step five, temporarily fixing the short steel beam section 61: after the short steel beam section 61 reaches a preset position, arranging an inclined support pull-fixing rod 4, fixing the short steel beam section 61 with the auxiliary fixing device, dismantling the temporary fixing device, and removing tower crane equipment;
step six, hoisting the long steel beam section 62: as shown in fig. 3, the long steel beam section 62 is hoisted to a construction position by using tower crane equipment, and is aligned with the short steel beam section 61 after the position is adjusted, high-altitude in-situ welding is carried out, the installation of the ultra-long steel beam is completed, the auxiliary fixing device is removed after the ultra-long steel beam is cooled to room temperature after the ultra-long steel beam is welded, and the ultra-long steel beam can be recycled.
The above-mentioned embodiments are only for describing the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art without departing from the design spirit of the present invention should fall into the protection scope defined by the claims of the present invention.

Claims (9)

1. A supplementary fixing device for installation of roof overlength girder steel, its characterized in that: the temporary fixing device is detachably arranged on a top layer structural plate (71) and is used for temporarily fixing a lifted short steel beam section (61), and comprises a supporting upright post (1), a first diagonal brace (2), a temporary fixing component and a diagonal brace fixing rod (4); one end of the short steel beam section (61) is fixedly connected with the upper return beam (72) through a foundation bolt (84), and the upper surface of the other end of the short steel beam section is respectively connected with the temporary pull-fixing component and the inclined strut pull-fixing rod (4);
the supporting upright posts (1) are arranged by being attached to the inner side wall of the upper return beam (72) of the roof, and the bottom of the supporting upright posts is fixed with the top layer structural plate (71) through the combined base (9);
the top end of the first diagonal brace (2) is detachably connected with the top of the supporting upright post (1), the bottom end of the first diagonal brace is detachably connected with a third embedded part (83), the third embedded part (83) is positioned on a structural beam (73) of the top layer structural plate (71), and a vertical surface formed by enclosing the first diagonal brace (2), the supporting upright post and the top layer structural plate (71) and the overlong steel beam are positioned in the same plane;
the temporary pulling and fixing component comprises a chain block (51) and a steel wire rope (52), one end of the chain block (51) is detachably connected with the top of the support upright post (1), and the other end of the chain block is detachably connected with the upper surface of the short steel beam section (61) through the steel wire rope (52);
the diagonal bracing pulling and fixing rod (4) is located below the temporary pulling and fixing component and arranged in parallel with the temporary pulling and fixing component, the top end of the diagonal bracing pulling and fixing rod is detachably connected with the supporting upright post (1), and the bottom end of the diagonal bracing pulling and fixing rod is detachably connected with the upper surface of the short steel beam section (61).
2. The auxiliary fixing device for the installation of the roof overlong steel beam as claimed in claim 1, wherein: the overlength girder steel still includes long girder section (62), and the length ratio of short girder section (61) and long girder section (62) is 1: 3-4.
3. The auxiliary fixing device for the installation of the roof overlong steel beam as claimed in claim 1, wherein: the vertical face formed by enclosing the second diagonal brace (3), the supporting vertical rod and the top layer structural plate (71) is vertical to the vertical face formed by enclosing the first diagonal brace (2), the supporting vertical rod and the top layer structural plate (71).
4. The auxiliary fixing device for the installation of the roof overlong steel beam as claimed in claim 1, wherein: the combined base (9) is of a cuboid steel structure and is fixed with the top-layer structural plate (71) through a first embedded part (81), and is fixed with an upward-returning beam (72) of the top-layer structural plate (71) through a second embedded part (82).
5. The auxiliary fixing device for the installation of the roof overlong steel beam as claimed in claim 4, wherein: the depth of the first embedded part (81) embedded into the top layer structure plate (71) is not less than 100mm, and the depth of the second embedded part (82) embedded into the upward returning beam (72) is not less than 300 mm.
6. The auxiliary fixing device for the installation of the roof overlong steel beam as claimed in claim 1, wherein: the first inclined stay bar (2) is H-shaped steel, and the included angle between the first inclined stay bar and the top layer structural plate (71) is 30-60 degrees.
7. The auxiliary fixing device for the installation of the roof overlong steel beam as claimed in claim 1, wherein: the inclined support pull-fixing rod (4) is H-shaped steel, and the included angle between the inclined support pull-fixing rod and the short steel beam section (61) is 30-60 degrees.
8. The auxiliary fixing device for the installation of the roof overlong steel beam as claimed in claim 1, wherein: the supporting upright posts (1) are H-shaped steel, and the height is not more than 6 m.
9. The auxiliary fixing device for the installation of the roof overlong steel beam as claimed in claim 1, wherein: the bottom of the supporting upright post (1) is provided with a sealing end plate, the sealing end plate is detachably fixed with the combined base (9) through bolts, and the bolts are M22 high-strength bolts.
CN201920465701.0U 2019-04-09 2019-04-09 Auxiliary fixing device for mounting roof super-long steel beam Active CN209855253U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201920465701.0U CN209855253U (en) 2019-04-09 2019-04-09 Auxiliary fixing device for mounting roof super-long steel beam

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201920465701.0U CN209855253U (en) 2019-04-09 2019-04-09 Auxiliary fixing device for mounting roof super-long steel beam

Publications (1)

Publication Number Publication Date
CN209855253U true CN209855253U (en) 2019-12-27

Family

ID=68936707

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Application Number Title Priority Date Filing Date
CN201920465701.0U Active CN209855253U (en) 2019-04-09 2019-04-09 Auxiliary fixing device for mounting roof super-long steel beam

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CN (1) CN209855253U (en)

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