CN103266567B - Steel truss cantilever supporting frame and its implementation - Google Patents
Steel truss cantilever supporting frame and its implementation Download PDFInfo
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- CN103266567B CN103266567B CN201310153145.0A CN201310153145A CN103266567B CN 103266567 B CN103266567 B CN 103266567B CN 201310153145 A CN201310153145 A CN 201310153145A CN 103266567 B CN103266567 B CN 103266567B
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Abstract
The present invention discloses steel truss cantilever supporting frame and its implementation, and comprise the multiple bearing posts be fixed on cushion cap, the top of bearing post is provided with steel truss, and the steel truss underhung outside bearing post has workbench.The present invention installs the mode of steel truss at bearing post top, making below steel truss can slinger's station, the template of bridge pier can be installed on the table, the weight of template to be sling support by steel truss, the mode of scaffold is set up relative to the bottom surface of full hall frame, the form that steel truss hangs slinger's station can make overall floor space reduce, and, there is below workbench certain space, passing through for vehicle, in order to ensure safety, below workbench, protective equipment can be installed, reach the object of safe passing, the floor space of scaffold can be greatly reduced, and, what the overall lifting time was less than full hall scaffold greatly builds the time, in like manner, the time of its dismounting is also less than the dismounting time of scaffold greatly.
Description
Technical field
The present invention relates to a kind of aid of building operations, specifically refer to a kind of steel truss cantilever supporting frame and its implementation.
Background technology
Pier stud, namely in civil engineering for carrying the bottom load-bearing material of superstructure.Pier stud cross section mostly is circular, also has ellipse, square, shaped form, the different in nature pier stud such as parabola shaped.Important ingredient in the engineerings such as the bridges such as road bridge, railway bridge, sidewalk, overpass bridge, ramp bridge, overline bridge.
The pier column construction of current viaduct or overpass bridge is normally carried out according to following operation: the construction of excavation pile construction, foundation platform, the construction of pier stud bottom, set up scaffold, reinforcement construction operation, scaffold installs bridge abutment moulding plate, the concreting of pier stud top, form removal after concrete curing, remove scaffold.This form of construction work is building of the enterprising hand cradle of traveling far and wide in the vacant lot around pier stud, and therefore, the requirement for place is higher, and at road reconstruction or when ensureing wagon flow passage, this form of construction work can not meet the demands.
Summary of the invention
The object of the present invention is to provide a kind of steel truss cantilever supporting frame and its implementation, solve current bridge pier column form of construction work and can not meet the needs of wagon flow, problem that floor space is large, reach while construction, for wagon flow provides the object in track.
Object of the present invention is achieved through the following technical solutions:
Steel truss cantilever supporting frame, comprise the multiple bearing posts be fixed on cushion cap, the top of bearing post is provided with steel truss, and the steel truss underhung outside bearing post has workbench.The present invention adopts on cushion cap, arranges multiple bearing post, and the mode of steel truss is installed at bearing post top, making below steel truss can slinger's station, the template of bridge pier can be installed on the table, the weight of template to be sling support by steel truss, the mode of scaffold is set up relative to the bottom surface of full hall frame, the form that steel truss hangs slinger's station can make overall floor space reduce, and, there is below workbench certain space, passing through for vehicle, in order to ensure safety, below workbench, protective equipment can be installed, reach the object of safe passing, this kind of structure is also applicable to the position that construction environment is restricted, such as Chengdu 2 nd Ring Road Reconstruction engineering, the side of bridge pier needs subway work, opposite side needs vehicle pass-through, special needs can be realized by the mode of steel truss hoisting station.
Described steel truss comprises suspension scaffold, suspension scaffold is arranged on bearing post top, and suspension scaffold is provided with truss strut, and truss strut is positioned at directly over bearing post, be provided with draw frame at truss strut top, the end of suspension scaffold is connected with the end of draw frame by diagonal member.Specifically, steel truss comprises two frameworks be parallel to each other: the draw frame being positioned at top, be positioned at the suspension scaffold of below, suspension scaffold is the rectangular frame be welded by steel or shaped steel, draw frame is also the rectangular frame be welded by steel or shaped steel, the length of draw frame is less than the length of suspension scaffold, multiple bearing post is all connected on cushion cap, it is perpendicular to cushion cap, bearing post forms matrix, and the length of suspension scaffold is greater than the length of matrix, and suspension scaffold is symmetrical, be convenient to the weight balancing keeping both sides, the matrix that the size of draw frame and bearing post are formed matches, during installation, draw frame is positioned at directly over the matrix of bearing post formation, above suspension scaffold, truss strut is installed, truss strut and bearing post one_to_one corresponding, so, the vertical direction active force that truss strut is born can be directly passed to bearing post, reduce the effect of horizontal external, be conducive to overall stability and fastness, the effect of draw frame is for suspension scaffold provides pulling force upwards, make the pulling force that the edge of suspension scaffold is also subject to upwards, avoid bending.
Encorbelment between middle part, place and draw frame end at suspension scaffold and be also provided with outer reinforced pull rod, in the middle part of suspension scaffold and between draw frame end, be also provided with interior reinforced pull rod.Further, as a further improvement on the present invention, in order to improve the drawknot effect of draw frame to suspension scaffold, between suspension scaffold and draw frame, outer reinforced pull rod can be installed, the two ends of outer reinforced pull rod are connected to the middle part of suspension scaffold expenditure bearing post, meanwhile, in order to make draw frame stress balance, in the middle part of the frame of whole suspension scaffold, be also provided with interior reinforced pull rod with the drift angle place of draw frame.
Described workbench comprises operating platform, and operating platform is connected to below steel truss by multiple hanger bar.Further, adopt the mode be suspended on by operating platform on steel truss, the inside configuration stress caused because of hard link can be overcome, reduce the possibility of distortion.
Described operating platform is provided with multiple height adjustment mechanism.Further, as a further improvement on the present invention, in order to be applicable to different moulds, can multiple height adjustment mechanism being set on the operational platform, by setting and the change of height adjustment mechanism, different templates can being used in, improving its practicality.
The implementation method of steel truss cantilever supporting frame, comprises the following steps:
(A) built-in fitting is set when cushion cap pouring construction, after cushion cap is formed, Weld-supporting post on built-in fitting;
(B) carry out pier stud after bearing post welding to build, and built-in fitting is set;
(C) install suspension scaffold at bearing post top, the part that suspension scaffold is positioned at bearing post both sides is symmetric;
(D) welded truss pillar on suspension scaffold, truss strut and bearing post one_to_one corresponding;
(E) at truss strut top, draw frame is installed, and between draw frame suspension scaffold, outer reinforced pull rod and interior reinforced pull rod is installed;
(F) fitting operation platform below suspension scaffold, operating platform is by multiple hanger bar;
(G) lift bridge abutment moulding plate, and adjust the height of hanger bar, with the position of height adjustment mechanism adjustment template;
(H) bridge pier is built.
The present invention implements according to this step, can greatly reduce the floor space of scaffold, and what the overall lifting time was less than full hall scaffold greatly builds the time, and in like manner, its time of removing also is less than dismounting time of scaffold greatly.
After step (G) completes, between template and cushion cap, cross-brace is installed, between cross-brace and the curved portions of template, is connected diagonal brace bar.
The present invention compared with prior art, has following advantage and beneficial effect:
1 steel truss cantilever supporting frame of the present invention, the mode of steel truss is installed at bearing post top, making below steel truss can slinger's station, the template of bridge pier can be installed on the table, the weight of template to be sling support by steel truss, the mode of scaffold is set up relative to the bottom surface of full hall frame, the form that steel truss hangs slinger's station can make overall floor space reduce, and, there is below workbench certain space, passing through for vehicle, in order to ensure safety, below workbench, protective equipment can be installed, reach the object of safe passing, this kind of structure is also applicable to the position that construction environment is restricted,
2 steel truss cantilever supporting frames of the present invention, suspension scaffold is the rectangular frame be welded by steel or shaped steel, draw frame is also the rectangular frame be welded by steel or shaped steel, the length of draw frame is less than the length of suspension scaffold, multiple bearing post is all connected on cushion cap, it is perpendicular to cushion cap, bearing post forms matrix, and the length of suspension scaffold is greater than the length of matrix, and suspension scaffold is symmetrical, be convenient to the weight balancing keeping both sides, the matrix that the size of draw frame and bearing post are formed matches, during installation, draw frame is positioned at directly over the matrix of bearing post formation, above suspension scaffold, truss strut is installed, truss strut and bearing post one_to_one corresponding, so, the vertical direction active force that truss strut is born can be directly passed to bearing post, reduce the effect of horizontal external, be conducive to overall stability and fastness, the effect of draw frame is for suspension scaffold provides pulling force upwards, make the pulling force that the edge of suspension scaffold is also subject to upwards, avoid bending,
The implementation method of 3 steel truss cantilever supporting frames of the present invention, can greatly reduce the floor space of scaffold, and what the overall lifting time was less than full hall scaffold greatly builds the time, and in like manner, its time of removing also is less than dismounting time of scaffold greatly.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Mark and corresponding component title in accompanying drawing:
1-cushion cap, 2-bearing post, 3-suspension scaffold, 4-truss strut, 5-draw frame, 6-diagonal member, the outer reinforced pull rod of 7-, reinforced pull rod in 8-, 9-operating platform, 10-hanger bar, 11-height adjustment mechanism, 12-cross-brace, 13-diagonal brace bar, 14-junction plate, 15-built-in fitting.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is described in further detail, but embodiments of the present invention are not limited thereto.
Embodiment
As shown in Figure 1, the present embodiment is for Cheng Wenlu improvement project in smooth " two fast two the penetrate two rings " project of the slow stifled guarantor in the inner city in Chengdu 2 nd Ring Road Reconstruction engineering, be positioned at Chengdu Zheng Xi main artey of communications (Cheng Wenlu), project is from becoming warm overpass bridge from the east of in Second Ring Road, to west longitude Shuan Qing South Road, Jinsha station, Qing Yang main road, West Road, the Qingjian River, west terminates in Three links theory Su Po overpass bridge east side, total length about 2.1 kilometers, construction mileage K1+705-K1+920 (i.e. main pier 43#-48#), be positioned at former one-tenth temperature way Lu Zhizheng, with Qing Yang main road (2.5 ring) right-angled intersection, Road, subway No. four line Qingjian River subway station (with subway No. seven line transfer stops), be sitting at this section, Road, subway No. four line Qingjian River subway station (with subway No. seven line transfer stops), head of a station 205.2m, Breadth Maximum 26m, foundation ditch depth capacity 28m(tetra-layers of station), between this engineering 46#, 47# pier, all the other section of foundation depth 22m, current subway carries out platform deep foundation pit construction, slope retaining etc., forms unsettled space, subway foundation pit supporting only has 2.3m apart from this engineering cushion cap limit, Coping Construction cannot set up support routinely, be all municipal government's key project, through repeatedly consulting with the relevant unit such as subway, all can not stop work and give way, according to actual conditions, have employed a kind of steel truss cantilever supporting frame that the present invention invents, assemble with lower component according to following operation: (A) is when cushion cap 1 pouring construction, built-in fitting 15 is placed in cushion cap 1, the quantity of built-in fitting is identical with the quantity of bearing post 2, and this built-in fitting 15 is according to rectangular arrangement, such built-in fitting each all adopts hook-shaped reinforcing bar to make, and be enclosed within the reinforcing bar of cushion cap 1, when after concrete form removal after cushion cap 1 is built, the surface of cushion cap 1 is chiseled, form non-planar contact surface, then Weld-supporting post 2 on built-in fitting 15, bearing post 2 is perpendicular to cushion cap 1, (B) bearing post 2 carries out the sub-body reinforcement construction of bridge pier after welding, after welding, colligation, Guan Mo, then the concreting of pier stud is carried out, and built-in fitting 15 is set, built-in fitting 15 is herein cylinder or large-area steel construction piece, its large-area axial vertical with built-in fitting 15, for playing the object increasing contact area, be fixed in the reinforcing bar of pier column, (C) install suspension scaffold 3 at bearing post 2 top, suspension scaffold 3 is connected into by steel welding the framework that entirety is rectangle, can increase part pull bar or crossbeam wherein, (D) welded truss pillar 4 on suspension scaffold 3, truss strut 4 and bearing post 2 one_to_one corresponding, (E) at truss strut 4 top, draw frame 5 is installed, draw frame 5 is connected into by steel welding the framework that entirety is rectangle, the suspension scaffold 3 being positioned at bearing post 2 both sides is symmetric, between draw frame 5 suspension scaffold 3, outer reinforced pull rod 7 and interior reinforced pull rod 8 are installed, the connecting portion of steel truss, bearing post 2, truss strut 4 can increase junction plate 14, and junction plate 14 is as the connection carrier of ends, (F) fitting operation platform 9 below suspension scaffold 3, operating platform 9 is by multiple hanger bar 10, (G) lift bridge abutment moulding plate, and adjust the height of hanger bar 10, adjust the position of template with height adjustment mechanism 11, between template and pier column, install cross-brace 12, cross-brace 12 is fixed on the built-in fitting 15 in pier column, plays the effect of supplemental support, is connected diagonal brace bar 13 between cross-brace 12 and the curved portions of template, (H) bridge pier concrete placings, builds complete, form removal after concrete setting, dismounting steel truss.
The above is only preferred embodiment of the present invention, not does any pro forma restriction to the present invention, every according in technical spirit of the present invention to any simple modification, equivalent variations that above embodiment is done, all fall within protection scope of the present invention.
Claims (5)
1. steel truss cantilever supporting frame, is characterized in that: comprise the multiple bearing posts (2) be fixed on cushion cap (1), the top of bearing post (2) is provided with steel truss, has workbench at the steel truss underhung in bearing post (2) outside; Described workbench comprises operating platform (9), and operating platform (9) is connected to below steel truss by multiple hanger bar (10); Described operating platform (9) is provided with multiple height adjustment mechanism (11).
2. steel truss cantilever supporting frame according to claim 1, it is characterized in that: described steel truss comprises suspension scaffold (3), suspension scaffold (3) is arranged on bearing post (2) top, suspension scaffold (3) is provided with truss strut (4), truss strut (4) is positioned at directly over bearing post (2), be provided with draw frame (5) at truss strut (4) top, the end of suspension scaffold (3) is connected with the end of draw frame (5) by diagonal member (6).
3. steel truss cantilever supporting frame according to claim 2, it is characterized in that: encorbelmenting between middle part, place and draw frame (5) end at suspension scaffold (3) is also provided with outer reinforced pull rod (7), between suspension scaffold (3) middle part and draw frame (5) end, be also provided with interior reinforced pull rod (8).
4. the implementation method of steel truss cantilever supporting frame, is characterized in that, comprises the following steps:
(A) built-in fitting is set when cushion cap (1) pouring construction, after cushion cap (1) is formed, Weld-supporting post (2) on built-in fitting;
(B) carry out pier stud after bearing post (2) welding to build, and built-in fitting is set;
(C) install suspension scaffold (3) at bearing post (2) top, the part that suspension scaffold (3) is positioned at bearing post (2) both sides is symmetric;
(D) at the upper welded truss pillar (4) of suspension scaffold (3), truss strut (4) and bearing post (2) one_to_one corresponding;
(E) at truss strut (4) top, draw frame (5) is installed, and outer reinforced pull rod (7) and interior reinforced pull rod (8) are installed between draw frame (5) and suspension scaffold (3);
(F) at suspension scaffold (3) below fitting operation platform (9), operating platform (9) is by multiple hanger bar (10);
(G) lift bridge abutment moulding plate, and adjust the height of hanger bar (10), with the position of height adjustment mechanism (11) adjustment template;
(H) bridge pier is built.
5. the implementation method of steel truss cantilever supporting frame according to claim 4, it is characterized in that: after step (G) completes, cross-brace (12) is installed between template and cushion cap (1), between cross-brace (12) and the curved portions of template, is connected diagonal brace bar (13).
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| CN201310153145.0A CN103266567B (en) | 2013-04-28 | 2013-04-28 | Steel truss cantilever supporting frame and its implementation |
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| CN103898835B (en) * | 2014-03-02 | 2015-11-11 | 葛洲坝集团第一工程有限公司 | The anti-back of the body of bridge draws load-bearing construction bracket and construction method |
| CN104179121B (en) * | 2014-07-28 | 2016-01-20 | 中交一公局第三工程有限公司 | A kind of mobile mould frame support bracket four promotes from assembling method |
| CN110306585A (en) * | 2019-07-03 | 2019-10-08 | 中铁二十五局集团第五工程有限公司 | A kind of cushion cap and cover board construction method |
| CN111262136A (en) * | 2020-02-25 | 2020-06-09 | 广东电网有限责任公司 | Transformer substation's framework crossbeam reinforcing apparatus |
| CN114892981A (en) * | 2022-05-29 | 2022-08-12 | 中国五冶集团有限公司 | Method for arranging double pull rods of profile steel main beam with ultra-long overhanging structure |
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| CN201560400U (en) * | 2009-09-17 | 2010-08-25 | 南昌市创新钢结构有限公司 | Stayed-cable hanging basket |
| CN102102342A (en) * | 2010-12-30 | 2011-06-22 | 广东省航盛建设集团有限公司 | Integral-structure type rear upper separator of diamond cradle |
| CN202766974U (en) * | 2012-06-27 | 2013-03-06 | 宏润建设集团股份有限公司 | Bent cap bearing frame without full framing |
| CN203174511U (en) * | 2013-04-28 | 2013-09-04 | 中国五冶集团有限公司 | Steel truss overhanging bracket |
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2013
- 2013-04-28 CN CN201310153145.0A patent/CN103266567B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0959932A (en) * | 1995-08-22 | 1997-03-04 | P S Co Ltd | Construction method of column head of overhanging erection girder bridge |
| CN201560400U (en) * | 2009-09-17 | 2010-08-25 | 南昌市创新钢结构有限公司 | Stayed-cable hanging basket |
| CN102102342A (en) * | 2010-12-30 | 2011-06-22 | 广东省航盛建设集团有限公司 | Integral-structure type rear upper separator of diamond cradle |
| CN202766974U (en) * | 2012-06-27 | 2013-03-06 | 宏润建设集团股份有限公司 | Bent cap bearing frame without full framing |
| CN203174511U (en) * | 2013-04-28 | 2013-09-04 | 中国五冶集团有限公司 | Steel truss overhanging bracket |
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