CN103696373B - Construction method for adjustable triangular bracket - Google Patents
Construction method for adjustable triangular bracket Download PDFInfo
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- CN103696373B CN103696373B CN201310538855.5A CN201310538855A CN103696373B CN 103696373 B CN103696373 B CN 103696373B CN 201310538855 A CN201310538855 A CN 201310538855A CN 103696373 B CN103696373 B CN 103696373B
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Abstract
The invention discloses a construction method for an adjustable triangular bracket. The construction method comprises the following steps: reserving a groove for holding an upper supporting plate and an opposite-pull rod at bracket arranging positions in advance in the constructing process of a pier body, and anchoring the upper supporting plate on the outer surface of a pier column; hinging one end of a horizontal beam to the upper supporting plate; inserting the upper end of a hanger rod into an upper reserved hole of the upper supporting plate; inserting the lower end of the hanger rod into a lower reserved hole of a lower supporting plate, fixing the upper and lower ends by adopting nuts, and vertically attaching the hanger rod to the outer surface of the pier column; hinging one end of an oblique rod to the lower supporting plate; hinging the other end of the oblique rod to one end, which is far away from the outer surface of the pier column, of the horizontal beam to form a stable right-angle triangular structure. The entire bracket can be arranged and detached rapidly by adjusting the horizontal angle of the horizontal beam in a way of adjusting the nuts at the upper and the lower ends of the hanger rod. The construction method is suitable for any cantilever structure of which the cantilever length is below 7.5 meters, and can be used repeatedly.
Description
Technical field
The present invention relates to the cantilever construction falsework construction technology of a kind of cast-in-place piece of continuous beam pier top, cast-in-place piece of end bay and the block that joins the two sections of a bridge, etc, be specifically related to a kind of construction method of adjustable triangular bracket.
Background technology
The construction of the cantilever constructions such as cast-in-place piece of the pier top of current domestic continuous beam, cast-in-place piece of end bay and closure block roughly has three kinds of methods, respectively: floor stand method, cradle construction method and miniature Bracket method.But there is various drawback all in various degree in these structures: floor stand method cost has high input; Cradle construction method can cause beam portion secondary stress; Common miniature Bracket method built-in fitting arranges comparatively complicated, and post-processed difficulty is large, and construction limitation is comparatively large, and be mostly and once utilize, recycling rate of waterused is low.
Summary of the invention
The object of this invention is to provide a kind of construction technology of cantilever construction falsework, by overall for support Fast Installation, dismounting, any cantilever construction of jib-length within 7.5m can be applicable to, and can repeatedly reuse.
For reaching above object, the present invention takes following technical scheme to be achieved:
A construction method for adjustable triangular bracket, is characterized in that, comprises the steps:
(1) in pier construction process, in advance the indwelling of bracket installation site install supporting plate groove and to pull bar, mounting plate is anchored at pier stud external surface;
(2) by one end of horizontal beam and mounting plate hinged;
(3) by the upper preformed hole of suspension rod upper end through mounting plate; Lower end is through after the lower preformed hole of bottom plate, and upper/lower terminal adopts nut to fix, and suspension rod is vertically abutted in pier stud external surface;
(4) by one end of brace and bottom plate hinged; The other end of brace and horizontal beam hinged away from one end of pier stud external surface, form stable right angle trigonometry structure;
(5) level angle of horizontal beam is regulated by the nut of adjustment suspension rod upper/lower terminal;
(6), after cantilever construction casting complete, make the horizontal beam of bracket leave top template by the nut adjusting suspension rod two ends, then unclamp the dismounting that can complete shelf bracket to pull bar.
In such scheme, described brace is two, and in being parallel to each other, shape is connected with suspension rod and horizontal beam.Described horizontal beam is formed by connecting by two to three cross bars, is connected firmly between cross bar with clamping plate by bolt.Described brace is formed by connecting by end brace and top brace.Or brace, top brace, several extension bars are formed by connecting at the bottom of one.One end of brace of the described end is provided with the lower ear plate of pin-and-hole, is connected with bottom plate by steel pin; One end of top brace is provided with the upper ear plate of pin-and-hole, is connected with horizontal beam by steel pin.Described extension bar and end brace pass through Flange joint; Top brace and extension bar are connected by steel pin.
Compared to existing technology, the present invention has the following advantages:
1, can by overall for shelf bracket rapid-assembling, quick-detachment;
2, except to except pull bar embedded hole and mounting plate groove base, do not need to carry out other built-in fitting, efficiency of construction and safety high;
3, by nut adjustment bottom plate upper-lower position, the whole bracket level angle of adjustable, does not need very high machining accuracy while installation accuracy is higher;
4, all parts all can centralized production also can repeatedly reuse, and economy is high.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the present invention's typical 5m cantilever construction shelf bracket.
Fig. 2 is the part lateral view of Fig. 1 shelf bracket brace.Wherein a figure is end brace, and b figure is top brace.
Fig. 3 is the lateral view of the upper and lower supporting plate of Fig. 1 shelf bracket.Wherein a figure is mounting plate, and b figure is bottom plate.
Fig. 4 is the erection sequence figure of Fig. 1 shelf bracket.Wherein, a figure is that mounting plate is installed; B figure is that horizontal beam is installed; C figure is brace and hanger erection; D figure is installation state.
Fig. 5 is the assembling schematic diagram of the present invention under various operating mode.Wherein e figure is 2.5m cantilever construction shelf bracket installation drawing; F figure is 5m cantilever construction shelf bracket installation drawing; G figure is cantilever 7.5m cantilever construction shelf bracket installation drawing; H figure is the shelf bracket installation drawing for the pier stud that tilts; I figure is the shelf bracket installation drawing for the bed die that tilts.
In Fig. 1 ~ Fig. 4: 1, to pull bar; 2, pier stud external surface; 3, horizontal beam; 3-1, cross bar; 3-2, clamping plate; 4, mounting plate; 4-1, mounting plate pin-and-hole; 4-2, to pulling eye; 4-3, upper preformed hole; 5, bottom plate; 5-1, bottom plate pin-and-hole; 5-2, lower preformed hole; 6, suspension rod; 7, brace; 7-1, end brace; 7-2, extension bar; 7-3, top brace; 7-1-1, lower ear plate; 7-3-1, upper ear plate; 8, pin-and-hole; 9, flange.
Detailed description of the invention
As shown in FIG. 1 to 3, a kind of adjustable triangular bracket, comprises horizontal beam 3, mounting plate 4, bottom plate 5, suspension rod 6 and brace 7.Wherein, mounting plate 4 passes through pull bar 1 and pier stud external surface 2 anchoring; One end of horizontal beam 3 is connected with mounting plate 4, and the other end is connected with brace 7 by inner position.Horizontal beam is made up of two cross bar 3-1 and clamping plate 3-2, is bolted between cross bar 3-1 with clamping plate 3-2.Brace 7 is made up of end brace 7-1, extension bar 7-2 and top brace 7-3, wherein adopts flange 9 to connect between end brace 7-1, extension bar 7-2; Be connected with steel pin by pin-and-hole 8 between extension bar 7-2 with top brace 7-3.One end of end brace 7-1 is provided with the lower ear plate 7-1-1 of pin-and-hole, is connected with bottom plate 5 by steel pin; One end of top brace 7-3 is provided with the upper ear plate 7-3-1 of pin-and-hole, is connected with horizontal beam 3 by steel pin.Connected by nut with suspension rod 6 between mounting plate 4, bottom plate 5, by the active length of nut adjustable suspension rod, to adapt to the angle change of bracket horizontal beam.Whole device forms stable right angle trigonometry structure.
6 are adopted to pull bar, 1 mounting plate, 4,1 bottom plate, 5,4 suspension rods, 6,1 cross bar 3-1, brace 7-1 at the bottom of 1,1 top brace 7-3(Fig. 5 e) with reference to figure 5,2.5m cantilever construction bracket; 5m cantilever construction bracket adopts 6 to pull bar, 1 mounting plate, 4,1 bottom plate, 5,4 suspension rods, 6,2 cross bar 3-1,1 clamping plate 3-2, brace 7-1 at the bottom of 1,1 extension bar 7-2,1 top brace 7-3(Fig. 5 f); More than one of brace in shelf bracket of the present invention, as Fig. 5 g, 7.5m cantilever construction bracket adopts 6 to brace at the bottom of pull bar, 1 mounting plate, 4,1 bottom plate, 5,2 brace 7(two, two top braces, four extension bars), 3 cross bar 3-1,2 clamping plate 3-2, at this moment, mounting plate and bottom plate can pass two groups of suspension rods 6, to adapt to this two braces simultaneously.For adapting to the gradient of pier stud and bed die, by adjusting the active length of suspension rod 6 to adapt to angle change (Fig. 5 h, 5i) of bracket horizontal beam.
With reference to figure 4, a kind of construction method adopting Fig. 1 typical 5m cantilever construction shelf bracket, comprises the steps:
(1) mounting plate is installed
In pier construction process, in advance at bracket installation site indwelling groove and to pull bar 1, by mounting plate 4, pier stud external surface 2(Fig. 2 is anchored at a) by mounting plate 4 to pulling eye 4-2;
(2) horizontal beam is installed
After being connected with clamping plate 3-2 by two of horizontal beam cross bar 3-1, wherein one end is connected (Fig. 2 b) by steel pin with the pin-and-hole 4-1 of mounting plate 4;
(3) suspension rod and bottom plate are installed
By suspension rod 6(fining twisted steel) upper end is through the upper preformed hole 4-3 of mounting plate 4; Lower end, through after the lower preformed hole 5-2 of bottom plate 5, adopts nut to fix (Fig. 3);
(4) brace is installed
End brace 7-1 is connected with extension bar 7-2 flange 9, and by steel pin, extension bar 7-2 is connected with end brace, by the otic placode 7-1-1 of end brace and bottom plate 5(pin-and-hole 5-1) be connected by steel pin; The upper ear plate 7-3-1 of top brace 7-3 is connected (Fig. 3) with horizontal beam 3 one end away from pier stud external surface by steel pin; By adjustment suspension rod 6 nut bracket level angle (Fig. 5 h, Fig. 5 i);
(5) bracket is removed
Make the horizontal beam 3 of bracket leave top template by adjustment suspension rod 6 nut, then unclamp and can complete bracket to pull bar 1 and remove.
Claims (7)
1. a construction method for adjustable triangular bracket, is characterized in that, comprises the steps:
(1) in pier construction process, in advance the indwelling of bracket installation site install supporting plate groove and to pull bar, mounting plate is anchored at pier stud external surface;
(2) by one end of horizontal beam and mounting plate hinged;
(3) by the upper preformed hole of suspension rod upper end through mounting plate; Lower end is through after the lower preformed hole of bottom plate, and upper/lower terminal adopts nut to fix, and suspension rod is vertically abutted in pier stud external surface;
(4) by one end of brace and bottom plate hinged; The other end of brace and horizontal beam hinged away from one end of pier stud external surface, form stable right angle trigonometry structure;
(5) level angle of horizontal beam is regulated by the nut of adjustment suspension rod upper/lower terminal;
(6), after cantilever construction casting complete, make the horizontal beam of bracket leave top template by the nut adjusting suspension rod two ends, then unclamp the dismounting that can complete shelf bracket to pull bar.
2. the construction method of adjustable triangular bracket as claimed in claim 1, it is characterized in that, described horizontal beam is formed by connecting by two to three cross bars, is connected firmly between cross bar with clamping plate by bolt.
3. the construction method of adjustable triangular bracket as claimed in claim 1, it is characterized in that, described brace is two, and in being parallel to each other, shape is connected with suspension rod and horizontal beam.
4. the construction method of adjustable triangular bracket as claimed in claim 1, is characterized in that, described brace is formed by connecting by end brace and top brace.
5. the construction method of adjustable triangular bracket as claimed in claim 1, is characterized in that, described brace brace, top brace, several extension bars at the bottom of one are formed by connecting.
6. the construction method of adjustable triangular bracket as claimed in claim 5, it is characterized in that, described extension bar and end brace pass through Flange joint; Top brace and extension bar are connected by steel pin.
7. the construction method of the adjustable triangular bracket as described in one of claim 4 ~ 6, is characterized in that, one end of brace of the described end is provided with the lower ear plate of pin-and-hole, is connected with bottom plate by steel pin; One end of top brace is provided with the upper ear plate of pin-and-hole, is connected with horizontal beam by steel pin.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310538855.5A CN103696373B (en) | 2013-11-01 | 2013-11-01 | Construction method for adjustable triangular bracket |
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| CN201310538855.5A CN103696373B (en) | 2013-11-01 | 2013-11-01 | Construction method for adjustable triangular bracket |
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| CN103696373A CN103696373A (en) | 2014-04-02 |
| CN103696373B true CN103696373B (en) | 2015-06-17 |
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| CN201310538855.5A Active CN103696373B (en) | 2013-11-01 | 2013-11-01 | Construction method for adjustable triangular bracket |
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Families Citing this family (12)
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| CN104074346A (en) * | 2014-07-02 | 2014-10-01 | 吴江市明港道桥工程有限公司 | Suspended construction support frame |
| CN104894980B (en) * | 2015-04-09 | 2017-03-08 | 中铁第五勘察设计院集团有限公司 | A kind of assembled tilt adjustable is from fall frame pier-side bracket and its construction method |
| CN108389481B (en) * | 2016-01-17 | 2019-07-23 | 江苏五饼二鱼工贸有限公司 | The dynamics track that is controlled based on acoustic measurement and electricity and at the uniform velocity adjusting method |
| CN105951610A (en) * | 2016-05-13 | 2016-09-21 | 中铁十七局集团第二工程有限公司 | Support structure assisting in cantilever beam construction and construction method |
| CN106400847B (en) * | 2016-10-14 | 2018-08-10 | 中交天津港湾工程研究院有限公司 | A kind of constructing device for ocean steel-pipe pile cladding corrosion protection system |
| CN107389450A (en) * | 2017-08-28 | 2017-11-24 | 江苏恒神股份有限公司 | General cylindrical shell based carbon fiber product axial compression test frock |
| CN210621497U (en) * | 2017-10-06 | 2020-05-26 | 巴里·沃尔特·杰克逊 | Bridge cantilever support assembly and fastener assembly |
| CN110629683A (en) * | 2019-10-08 | 2019-12-31 | 山东省路桥集团有限公司 | Composite assembling type bridge cantilever construction bracket |
| CN110758677A (en) * | 2019-10-31 | 2020-02-07 | 中船黄埔文冲船舶有限公司 | Marine detachable platform with railing and installation method |
| CN112943092B (en) * | 2021-03-31 | 2024-07-02 | 江苏谷登重型机械科技股份有限公司 | Split type construction supporting mechanism of horizontal directional drilling machine |
| CN113622322A (en) * | 2021-08-13 | 2021-11-09 | 中铁十五局集团有限公司 | Device and method for replacing and maintaining bridge support |
| CN114753255A (en) * | 2022-03-16 | 2022-07-15 | 中交二公局第三工程有限公司 | Adjustable assembled 0# piece bracket structure |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2444449C (en) * | 2003-10-07 | 2013-07-09 | George W. Jackson | Bridge overhang bracket |
| JP4569878B2 (en) * | 2006-08-07 | 2010-10-27 | 清水建設株式会社 | Bridge girder construction method |
| CN201460205U (en) * | 2009-05-27 | 2010-05-12 | 中冶实久建设有限公司 | Wide-span reinforced concrete combined beam flange cantilever support |
| CN201567533U (en) * | 2009-09-28 | 2010-09-01 | 中交二公局第六工程有限公司 | Assembly and disassembly-type bracket for cast-in-place of continuous beam |
| CN202148494U (en) * | 2011-07-19 | 2012-02-22 | 青岛德顺昕工贸有限公司 | Formwork support for bridge |
| CN102704409A (en) * | 2012-06-28 | 2012-10-03 | 中铁十三局集团第一工程有限公司 | Shelf bracket |
| CN202881854U (en) * | 2012-10-15 | 2013-04-17 | 中交四航局第二工程有限公司 | Support bracket for bridge construction |
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