CN103696373A - Construction method for adjustable triangular bracket - Google Patents
Construction method for adjustable triangular bracket Download PDFInfo
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- CN103696373A CN103696373A CN201310538855.5A CN201310538855A CN103696373A CN 103696373 A CN103696373 A CN 103696373A CN 201310538855 A CN201310538855 A CN 201310538855A CN 103696373 A CN103696373 A CN 103696373A
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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 cast-in-place of a kind of continuous beam pier top, cast-in-place of end bay and closure piece, 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 of the pier top of current domestic continuous beam, cast-in-place of end bay and closure piece roughly has three kinds of methods, respectively: floor stand method, cradle construction method and miniature Bracket method.But all there are various drawbacks in these structures in various degree: cost of floor stand method has high input; Cradle construction method can cause beam portion secondary stress; The setting of common miniature Bracket method built-in fitting is comparatively complicated, and post-processed difficulty is large, and construction limitation is larger, is mostly once and utilizes, and recycling rate of waterused is low.
Summary of the invention
The construction technology that the object of this invention is to provide a kind of cantilever construction falsework, can be by the whole Fast Installation of support, dismounting, be applicable to jib-length at 7.5m with interior any cantilever construction, 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 bracket installation site, keep somewhere and install the groove of supporting plate and to pull bar, mounting plate is anchored to pier stud external surface in advance;
(2) one end of horizontal beam and mounting plate is hinged;
(3) the upper preformed hole through mounting plate by suspension rod upper end; 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 to pier stud external surface;
(4) one end of brace and bottom plate is hinged; The other end of brace and horizontal beam are hinged away from one end of pier stud external surface, form stable right angle trigonometry structure;
(5) by adjusting the nut of suspension rod upper/lower terminal, regulate the level angle of horizontal beam;
(6), after cantilever construction casting complete, by adjusting the nut at suspension rod two ends, make the horizontal beam of bracket leave top template, then unclamp the dismounting that can complete shelf bracket to pull bar.
In such scheme, described brace is two, is the shape that is parallel to each other and is connected with horizontal beam with suspension rod.Described horizontal beam is formed by connecting by two to three cross bars, between cross bar, with clamping plate, by bolt, is connected firmly.Described brace is formed by connecting by end brace and top brace.Or be formed by connecting by brace, top brace, several extension bars at the bottom of one.One end of brace of the described end is provided with the lower ear plate of pin-and-hole, by steel pin, is connected with bottom plate; One end of top brace is provided with the upper ear plate of pin-and-hole, by steel pin, is connected with horizontal beam.Described extension bar and end brace connect by flange; Top brace and extension bar connect by steel pin.
Compared to existing technology, the present invention has the following advantages:
1, can be by the whole rapid-assembling of shelf bracket, quick-detachment;
2, except to pull bar embedded hole and mounting plate groove base, do not need to carry out other built-in fitting, efficiency of construction and safe;
3, by nut, adjust bottom plate upper-lower position, the whole bracket level angle of capable of regulating, does not need very high machining accuracy when 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 shelf bracket for the typical 5m cantilever construction of the present invention.
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 modes.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.
The specific embodiment
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 2 anchorings of pier stud external surface; 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 comprised of two cross bar 3-1 and clamping plate 3-2, between cross bar 3-1, with clamping plate 3-2, is bolted.Brace 7 consists of end brace 7-1, extension bar 7-2 and top brace 7-3, wherein between end brace 7-1, extension bar 7-2, adopts flange 9 to connect; Between extension bar 7-2 and top brace 7-3, by pin-and-hole 8 use steel pins, be connected.One end of end brace 7-1 is provided with the lower ear plate 7-1-1 of pin-and-hole, by steel pin, is connected with bottom plate 5; One end of top brace 7-3 is provided with the upper ear plate 7-3-1 of pin-and-hole, by steel pin, is connected with horizontal beam 3.Between mounting plate 4, bottom plate 5, with suspension rod 6, by nut, connect, by the active length of nut adjustable suspension rod, to adapt to the angle of bracket horizontal beam, change.Whole device forms stable right angle trigonometry structure.
With reference to figure 5,2.5m cantilever construction adopts 6 to brace 7-1 at the bottom of pull bar, 6,1 cross bar 3-1 of 5,4 suspension rods of 4,1 bottom plate of 1 mounting plate, 1,1 top brace 7-3(Fig. 5 e with bracket); 5m cantilever construction adopts 6 to pull bar, 6,2 cross bar 3-1 of 5,4 suspension rods of 4,1 bottom plate of 1 mounting plate, 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 with bracket); In shelf bracket of the present invention, brace is more than one, as Fig. 5 g, 7.5m cantilever construction adopts 6 to brace at the bottom of two, pull bar, 5,2 brace 7(of 4,1 bottom plate of 1 mounting plate with bracket, 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 simultaneously, to adapt to this two braces.For adapting to the gradient of pier stud and bed die, by adjusting the active length of suspension rod 6, to adapt to the angle of bracket horizontal beam, change (Fig. 5 h, 5i).
With reference to figure 4, a kind of construction method that adopts the typical 5m cantilever construction of Fig. 1 to use shelf bracket, comprises the steps:
(1) mounting plate is installed
In pier construction process, in bracket installation site, keep somewhere in advance groove and to pull bar 1, by mounting plate 4, pulling eye 4-2 is anchored to pier stud external surface 2(Fig. 2 a) by mounting plate 4;
(2) horizontal beam is installed
After two cross bar 3-1 of horizontal beam are connected with clamping plate 3-2, wherein one end is connected (Fig. 2 b) with the pin-and-hole 4-1 of mounting plate 4 by steel pin;
(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 flange 9 with extension bar 7-2, 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) by steel pin, be connected; The upper ear plate 7-3-1 of top brace 7-3 is connected (Fig. 3) by steel pin and horizontal beam 3 away from one end of pier stud external surface; By adjusting suspension rod 6 nut bracket level angles (Fig. 5 h, Fig. 5 i);
(5) bracket is removed
By adjusting suspension rod 6 nuts, make the horizontal beam 3 of bracket leave top template, then unclamp and to pull bar 1, can complete bracket 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 bracket installation site, keep somewhere and install the groove of supporting plate and to pull bar, mounting plate is anchored to pier stud external surface in advance;
(2) one end of horizontal beam and mounting plate is hinged;
(3) the upper preformed hole through mounting plate by suspension rod upper end; 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 to pier stud external surface;
(4) one end of brace and bottom plate is hinged; The other end of brace and horizontal beam are hinged away from one end of pier stud external surface, form stable right angle trigonometry structure;
(5) by adjusting the nut of suspension rod upper/lower terminal, regulate the level angle of horizontal beam;
(6), after cantilever construction casting complete, by adjusting the nut at suspension rod two ends, make the horizontal beam of bracket leave top template, 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, is characterized in that, described horizontal beam is formed by connecting by two to three cross bars, between cross bar, with clamping plate, by bolt, is connected firmly.
3. the construction method of adjustable triangular bracket as claimed in claim 1, is characterized in that, described brace is two, is the shape that is parallel to each other and is connected with horizontal beam with suspension rod.
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 is formed by connecting by brace, top brace, several extension bars at the bottom of one.
6. the construction method of adjustable triangular bracket as claimed in claim 5, is characterized in that, described extension bar and end brace connect by flange; Top brace and extension bar connect by steel pin.
7. the construction method of the adjustable triangular bracket as described in one of claim 1～6, is characterized in that, one end of brace of the described end is provided with the lower ear plate of pin-and-hole, by steel pin, is connected with bottom plate; One end of top brace is provided with the upper ear plate of pin-and-hole, by steel pin, is connected with horizontal beam.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310538855.5A CN103696373B (en) | 2013-11-01 | 2013-11-01 | Construction method for adjustable triangular bracket |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310538855.5A CN103696373B (en) | 2013-11-01 | 2013-11-01 | Construction method for adjustable triangular bracket |
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| CN103696373A true CN103696373A (en) | 2014-04-02 |
| CN103696373B CN103696373B (en) | 2015-06-17 |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN104894980A (en) * | 2015-04-09 | 2015-09-09 | 中铁第五勘察设计院集团有限公司 | Assembled inclination-angle-adjustable self-frame-falling pier-side bracket and construction method of pier-side bracket |
| 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 |
| 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 |
| CN108389481A (en) * | 2016-01-17 | 2018-08-10 | 赵红艳 | The dynamics track that is controlled based on acoustic measurement and electricity and at the uniform velocity adjusting method |
| CN108457308A (en) * | 2016-10-14 | 2018-08-28 | 中交天津港湾工程研究院有限公司 | A kind of installation method of constructing device for ocean steel-pipe pile cladding corrosion protection system |
| CN109629457A (en) * | 2017-10-06 | 2019-04-16 | 巴里·沃尔特·杰克逊 | Improved bridge overhanging bracket component |
| 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 |
| 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 |
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| 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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| US20050071936A1 (en) * | 2003-10-07 | 2005-04-07 | Jackson George W. | Bridge overhang bracket |
| JP2008038463A (en) * | 2006-08-07 | 2008-02-21 | Shimizu Corp | Bridge girder erection 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 |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN104894980A (en) * | 2015-04-09 | 2015-09-09 | 中铁第五勘察设计院集团有限公司 | Assembled inclination-angle-adjustable self-frame-falling pier-side bracket and construction method of pier-side bracket |
| 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 |
| CN108389481A (en) * | 2016-01-17 | 2018-08-10 | 赵红艳 | 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 |
| CN108457308A (en) * | 2016-10-14 | 2018-08-28 | 中交天津港湾工程研究院有限公司 | A kind of installation method of constructing device for ocean steel-pipe pile cladding corrosion protection system |
| CN108457308B (en) * | 2016-10-14 | 2020-02-18 | 中交天津港湾工程研究院有限公司 | Installation method of construction device for marine steel pipe pile coating anticorrosion 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 |
| CN109629457A (en) * | 2017-10-06 | 2019-04-16 | 巴里·沃尔特·杰克逊 | Improved bridge overhanging bracket component |
| 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 |
| 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 |
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| CN103696373B (en) | 2015-06-17 |
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