CN103388310A - Single-point fixing adjustable cantilever tripod - Google Patents
Single-point fixing adjustable cantilever tripod Download PDFInfo
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- CN103388310A CN103388310A CN2013103450513A CN201310345051A CN103388310A CN 103388310 A CN103388310 A CN 103388310A CN 2013103450513 A CN2013103450513 A CN 2013103450513A CN 201310345051 A CN201310345051 A CN 201310345051A CN 103388310 A CN103388310 A CN 103388310A
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- tripod
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Abstract
The invention provides a single-point fixing adjustable cantilever tripod. The tripod comprises a horizontal rod (1), a vertical rod (2) and an oblique rod (3), which are connected to be triangular, as well as a rotary support base (9) and an adjustable support base (8); the rotary support base (9) is connected to one end part, close to the vertical rod (2), of the horizontal rod (1), so the tripod is connected to the outside in a mode of rotating in a vertical plane; the adjustable support base (8) is connected with one end part, far away from the horizontal rod (1), of the vertical rod (2) for supporting the tripod. The single-point fixing adjustable cantilever tripod is fixed by means of a well erected steel box girder, a support does not need to be erected from the ground, and the adjusting on angles or slopes needed by engineering can be met.
Description
Technical field
The present invention relates to the fixing adjustable tripod of encorbelmenting of a kind of single-point, be applicable to highway bridge, building construction field, be particularly suitable for the construction of steel reinforced concrete bondbeam wing plate.
Background technology
Along with constantly improving and development of highway in China and railway traffic infrastructure, city needs the quantity of newly-built overpass bridge constantly to increase, and mountain area need to be built the highway bridge of crossing over mountain valley and river and constantly increase, and this has higher requirement to the bridge construction technology.Girder steel is convenient to factory process to the steel reinforced concrete bondbeam, structural bearing capacity is high and, from advantages such as heavy and lights, obtained tremendous development owing to possessing.In order to reduce the consumption of overall steel, case beam main body adopts steel work, and bridge deck and wing plate generally use concrete structure, to give full play to the advantage of bi-material.
The concreting of steel case beam wing plate need to be by the falsework platform, and no matter is the overpass bridge of city cross-line, or the mountain area cross a river, across the bridge in mountain valley, the newly building bridge bottom does not all have available place, can't start to set up from ground scaffold.For this reason, need to set up rack platform by the project subject structure.Although the loading characteristic of tripod structure meets the requirements very much, yet, tripod is fixed on the project subject structure, form geometrically stable system, need by three not conllinear axial constraint or formed with an axial constraint by a hinge constraint.Because perforate is not only difficult on the case web, and agent structure there is damage, high in high-altitude, steel case web outside construction operation danger simultaneously, therefore, fixed triangle frame how, how to reduce or to avoid the outside work high above the ground of steel case beam, how reducing the key that tripod structure is conducted oneself with dignity and conveniently is mounted for problem.
In addition, under many circumstances, due to the needs of architectural image or rational deployment, the project subject structure may be designed to variable cross-section or adopt form with angle.In this case,, in order to meet the demand of engineering, tripod need to be adjusted to different angles.
Summary of the invention
In view of this, the purpose of this invention is to provide the fixing adjustable tripod of encorbelmenting of a kind of single-point, by means of the steel case beam of having set up, fix tripod, need not set up support from ground, and can meet the adjustment of the desired angle of engineering or the gradient.
To achieve these goals, the invention provides the fixing adjustable tripod of encorbelmenting of a kind of single-point, comprise: horizon bar (1), montant (2) and brace (3) connect described horizon bar (1), described montant (2) and described brace (3) and make triangular in shape; Rotating stand (9), be connected to an end of the close described montant (2) of described horizon bar (1), and the mode that can rotate in perpendicular with described tripod is connected to outside with described tripod; And adjustable seats (8), be connected to the end away from described horizon bar (1) of described montant (2), be used for supporting described tripod.
Tripod of the present invention, described rotating stand (9) comprises transverse bolt (19-2), horizontal nut (20-2) and floor (22), a described end and the described floor (22) of described horizon bar (1) have lateral aperture, described transverse bolt (19-2) penetrates described lateral aperture, by described transverse bolt (19-2) and described horizontal nut (20-2), described rotating stand (9) is connected to described horizon bar (1).
Tripod of the present invention, described rotating stand (9) also comprises perpendicular bolt (19-1), perpendicular nut (20-1) and level board (21), described level board (21) is connected to described floor (22), described level board (21) has vertical core, described perpendicular bolt (19-1) penetrates described vertical core, by described perpendicular bolt (19-1) and described perpendicular nut (20-1), described rotating stand (9) is connected to outside.
Tripod of the present invention, described adjustable seats (8) comprises screw rod (17) and nut (23), a described end of described montant (2) is fixed with connector (24), described connector (24) has lateral aperture, described screw rod (17) penetrates described lateral aperture, regulates the position of described adjustable seats (8) by described screw rod (17) and described nut (23).
Tripod of the present invention, described adjustable seats (8) also comprises supporting plate (18), is used for being supported on outside.
Tripod of the present invention, also comprise web member (4), connects any two in described horizon bar (1), described montant (2) and described brace (3).
Tripod of the present invention, also comprise junction plate (5) and stiffening rib (6), described horizon bar (1), described montant (2), described brace (3) and described web member (4) interconnect by described junction plate (5) and described stiffening rib (6).
Tripod of the present invention, also comprise a plurality of baffle plates (7), is positioned at certain intervals the upper surface of described horizon bar (1).
Tripod of the present invention, also comprise guardrail (10), is connected to the other end away from described montant (2) of described horizon bar (1).
Tripod of the present invention, described rotating stand (9) is installed to the wing plate of steel reinforced concrete bondbeam, and described adjustable seats (8) is supported on the web of described steel reinforced concrete bondbeam.
Single-point of the present invention is fixed the adjustable tripod of encorbelmenting, and by means of the steel case beam of having set up, fixes tripod, need not set up support from ground, and can meet the adjustment of the desired angle of engineering or the gradient.
Description of drawings
Fig. 1 is the installation drawing according to the fixing adjustable tripod of encorbelmenting of single-point of one embodiment of the present invention.
Fig. 2 illustrates adjustable seats.
Fig. 3 illustrates rotating stand.
Fig. 4 illustrates operating principle of the present invention.
Fig. 5 illustrates the structure of tripod of the present invention.
Fig. 6 is the partial enlarged drawing of Fig. 1, and rotating stand is shown.
Fig. 7 is the partial enlarged drawing of Fig. 1, and adjustable seats is shown.
The specific embodiment
As shown in Figure 1, adjustable encorbelment tripod fixing according to the single-point of one embodiment of the present invention belongs to a kind of construction temporary support structure, comprises horizon bar 1, montant 2, brace 3, web member 4, junction plate 5, stiffening rib 6 (Fig. 6), baffle plate 7, adjustable seats 8, rotating stand 9 and guardrail 10.Wherein, horizon bar 1, montant 2, brace 3, web member 4, junction plate 5, stiffening rib 6, baffle plate 7 have formed the agent structure of the tripod of encorbelmenting, and are bearing young concrete deadweight and the load of construction period; Adjustable seats 8, rotating stand 9 are bearing, are used for fixing or support triangle frame and adjust the angle of tripod; The frontier defense of facing that guardrail 10 is used for construction period is protected, and guarantees construction safety.
As shown in Figure 2, adjustable seats 8 comprises screw rod 17 and supporting plate 18, regulates the height of adjustable seats 8 by nut 23, thereby meets the required angle of engineering.
As shown in Figure 3, rotating stand 9 comprises perpendicular bolt 19-1, transverse bolt 19-2, perpendicular nut 20-1, horizontal nut 20-2, level board 21 and two floors 22.The transverse bolt 19-2 that the horizon bar 1 of tripod is rotated bearing 9 penetrates, and can rotate around transverse bolt 19-2.
Horizon bar 1, montant 2, brace 3 and web member 4 can be selected small-diameter circular steel or square steel, by junction plate 5 and stiffening rib 6 tripod that is welded., according to the loading characteristic of tripod,, for reaching deadweight, the economical with materials that reduces structure and the purpose that facilitates site operation, can make the section area of the section area of montant 2, brace 3 and web member 4 less than horizon bar 1.In the junction of horizon bar 1 and montant 2, stiffening rib 6 (Fig. 6) is set, and at this place's along continuous straight runs, bores a hole, by transverse bolt 19-2, with rotating stand 9, be connected, make tripod to rotate in perpendicular.Rotating stand 9 is fixed to wing plate 15 positions of steel case beam by the perpendicular bolt 19-1 of top, as shown in Figure 1.Montant 2 lower end welding are with the connector 24 of lateral aperture, and screw rod 17 penetrates connector 24, regulates the position of adjustable seats 8 by screw rod 17, and screw rod 17 is supported on the web 16 of steel case beam with supporting plate 18.When the gradient of concrete flange plate 15 is larger,, for preventing the tripod top lumps of wood 12 down slidings, at the upper surface of horizon bar 1,, every baffle plate 7 of a segment distance welding, be used for the fixedly lumps of wood 12.Lay template 13 on the lumps of wood 12.Before concreting 14, adopt 11 pairs of rotating stands 9 of pvc pipe to protect, avoid concrete 14 to flow into.Be used for facing the defensive guardrail 10 in limit and be comprised of vertical railing and horizontal rails, vertical railing is affixed to tripod by welding or bolt, and horizontal rails can be connected with vertical railing by colligation or bolt.
Manufacturing process
As shown in Figure 5, the main body of tripod is comprised of horizon bar 1, montant 2, brace 3, web member 4, junction plate 5, stiffening rib 6 and baffle plate 7.At first the shaped steel rod member is cut into the length of designing requirement, bore a hole at horizon bar 1 left end, junction plate 5 and stiffening rib 6 are welded on the relevant position of horizon bar 1, montant 2 and brace 3,, every baffle plate 7 of an intersegmental distance welding, finally horizon bar 1, montant 2, brace 3, web member 4 are welded together to form tripod in horizon bar 1 upper surface relevant position.
As shown in Figure 7, adjustable seats 8 is comprised of screw rod 17 and supporting plate 18,, according to requirement of engineering, calculates in advance the height that screw rod 17 is regulated, and utilizes nut 23 fixing, with the tripod main body, forms an integral body.
As shown in Figure 6, rotating stand 9 is comprised of perpendicular bolt 19-1, transverse bolt 19-2, perpendicular nut 20-1, horizontal nut 20-2, level board 21 and two floors 22, level board 21 and two floors 22 are integrally welded, and level board 21 respectively bore a hole with floor 22 relevant positions.
Work progress
As shown in Figure 6,7, at first the certain distance in interval is bored a hole on the wing plate 15 of steel case beam, perpendicular bolt 19-1 is inserted in the hole of rotating stand 9 level boards 21, then penetrate from bottom to top in the hole of wing plate 15, at the upper surface of wing plate 15, by perpendicular nut 20-1, fix.After fixing rotating stand 9, tripod is inserted in rotating stand 9, the hole in horizon bar 1 left side is overlapped with the hole on rotating stand 9 floors 22, transverse bolt 19-2 is penetrated in hole, tighten horizontal nut 20-2 and fix, complete the installation of tripod with fixing.
The lumps of wood 12 are placed in baffle plate 7 corresponding positions at the horizon bar 1 of tripod, lay template 13 on the lumps of wood 12, and guardrail 10 is connected on tripod.Before building, at the perpendicular bolt 19-1 place of rotating stand 9, be inserted in pvc pipe 11.After concreting is completed and reached design strength, take out pvc pipe 11, utilize instrument to unclamp perpendicular nut 20-1 on rotating stand 9, after template 13 and the lumps of wood 12 are loosening, take out successively.Then thoroughly back-out and erect nut 20-1, tripod is removed.
Operating principle
As shown in Figure 4, rotating stand 9 (bearing 1A) is fixed on the wing plate 15 of steel case beam, is equivalent to a hinged-support, and adjustable seats 8 (bearing 2A) is supported on the web 16 of steel case beam.The web 16 of steel case beam can provide the reaction pressure of a horizontal direction to tripod, but owing to not connecting thereby pulling force can not being provided.Again due to tripod under the effect of structure self gravitation or upper load, 8 of adjustable seats can pressurized, can not produce pulling force, thus structure be how much constant, can keep stable.
By boring a level on the horizon bar 1 at tripod to hole, be connected with rotating stand 9, make tripod freely to rotate in perpendicular, again by regulating the screw rod 17 of adjustable seats 8, realize the required angle of engineering, make the angle of inclination of horizon bar 1 of tripod consistent with the wing plate concrete soffit gradient, need not to carry out adjusting angle by the lumps of wood 12.
Beneficial effect
(1) fix tripod by means of the steel case beam of having set up, need not set up support from ground, be applicable to below bridge to have reduced the input of construction temporory structure and equipment without the specific condition in place, reduce working procedure and difficulty of construction, can obtain huge economy and social benefit.
(2) form of structure is reasonable, has reduced the deadweight of tripod, has saved the consumption of steel.If adopt the light materials such as Q345 steel or aluminium alloys, be convenient to artificial the installation and dismounting, need not to drop into other plant equipment.
(3) adopt the fixing mode of single-point, utilize the supporting role of the web 16 of steel case beam, guaranteed the stable of structure.
(4) on tripod top, rotating stand 9 is set, can meets the adjustment of the desired angle of engineering or the gradient.
(5) adjustable seats 8 of tripod bottom can draw by angle calculation in advance, before construction, itself and tripod is fixed and to be got final product, and need not to adjust in work progress, and easy working procedure has reduced the risk of personal height operation.
(6) upper surface of horizon bar 1 arranges baffle plate 7 every an intersegmental distance, the risk that while having avoided wide-angle, the lumps of wood 12 glides.
(7) before building the wing plate concrete, vertically be inserted in pvc pipe 11 in the top position of rotating stand 9, concrete infiltration while having avoided building.While removing tripod after concrete strength arrives design strength, only need the loosening perpendicular nut 20-1 on top to remove.
Claims (10)
1. a single-point is fixed the adjustable tripod of encorbelmenting, and comprising:
Horizon bar (1), montant (2) and brace (3), connect described horizon bar (1), described montant (2) and described brace (3) and make triangular in shape;
Rotating stand (9), be connected to an end of the close described montant (2) of described horizon bar (1), and the mode that can rotate in perpendicular with described tripod is connected to outside with described tripod; And
Adjustable seats (8), be connected to the end away from described horizon bar (1) of described montant (2), is used for supporting described tripod.
2. tripod according to claim 1, it is characterized in that, described rotating stand (9) comprises transverse bolt (19-2), horizontal nut (20-2) and floor (22), a described end and the described floor (22) of described horizon bar (1) have lateral aperture, described transverse bolt (19-2) penetrates described lateral aperture, by described transverse bolt (19-2) and described horizontal nut (20-2), described rotating stand (9) is connected to described horizon bar (1).
3. tripod according to claim 2, it is characterized in that, described rotating stand (9) also comprises perpendicular bolt (19-1), perpendicular nut (20-1) and level board (21), described level board (21) is connected to described floor (22), described level board (21) has vertical core, described perpendicular bolt (19-1) penetrates described vertical core, by described perpendicular bolt (19-1) and described perpendicular nut (20-1), described rotating stand (9) is connected to outside.
4. tripod according to claim 1, it is characterized in that, described adjustable seats (8) comprises screw rod (17) and nut (23), a described end of described montant (2) is fixed with connector (24), described connector (24) has lateral aperture, described screw rod (17) penetrates described lateral aperture, regulates the position of described adjustable seats (8) by described screw rod (17) and described nut (23).
5. tripod according to claim 4, is characterized in that, described adjustable seats (8) also comprises supporting plate (18), is used for being supported on outside.
6. tripod according to claim 1, is characterized in that, also comprises web member (4), connects any two in described horizon bar (1), described montant (2) and described brace (3).
7. tripod according to claim 6, it is characterized in that, also comprise junction plate (5) and stiffening rib (6), described horizon bar (1), described montant (2), described brace (3) and described web member (4) interconnect by described junction plate (5) and described stiffening rib (6).
8. tripod according to claim 1, is characterized in that, also comprises a plurality of baffle plates (7), is positioned at certain intervals the upper surface of described horizon bar (1).
9. tripod according to claim 1, is characterized in that, also comprises guardrail (10), is connected to the other end away from described montant (2) of described horizon bar (1).
10. tripod according to claim 1, is characterized in that, described rotating stand (9) is installed to the wing plate of steel reinforced concrete bondbeam, and described adjustable seats (8) is supported on the web of described steel reinforced concrete bondbeam.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013103450513A CN103388310A (en) | 2013-08-09 | 2013-08-09 | Single-point fixing adjustable cantilever tripod |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013103450513A CN103388310A (en) | 2013-08-09 | 2013-08-09 | Single-point fixing adjustable cantilever tripod |
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| CN103388310A true CN103388310A (en) | 2013-11-13 |
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| CN2013103450513A Pending CN103388310A (en) | 2013-08-09 | 2013-08-09 | Single-point fixing adjustable cantilever tripod |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105178188A (en) * | 2015-07-10 | 2015-12-23 | 北京市政建设集团有限责任公司 | Novel triangular frame supporting structure and formwork |
| CN105256997A (en) * | 2015-10-13 | 2016-01-20 | 中国十七冶集团有限公司 | Method for inspecting and regulating installation inclination angle of inclined formwork |
| CN108193599A (en) * | 2017-12-28 | 2018-06-22 | 中铁十局集团第四工程有限公司 | Concrete-steel Beam cast-in-place flange plate cantilevered support structure system and construction method |
| CN109629425A (en) * | 2018-12-06 | 2019-04-16 | 清华大学 | The construction method on pole bracket and the composite steel concrete bridge concrete edge of a wing using pole bracket |
| CN109629457A (en) * | 2017-10-06 | 2019-04-16 | 巴里·沃尔特·杰克逊 | Improved bridge overhanging bracket component |
| CN109958041A (en) * | 2017-12-23 | 2019-07-02 | 蒋芳荣 | A kind of road shoulder concrete construction formwork |
| CN111139745A (en) * | 2019-12-27 | 2020-05-12 | 中冶交通建设集团有限公司 | Construction method for cast-in-place concrete top plate of combined box girder |
| CN112523100A (en) * | 2020-12-09 | 2021-03-19 | 中冶京诚工程技术有限公司 | Template supporting structure of overhead concrete cantilever beam |
| CN112575693A (en) * | 2020-11-30 | 2021-03-30 | 中交路桥建设有限公司 | Cantilever lifting appliance for reinforced concrete composite beam and safety protection method |
| CN112832137A (en) * | 2021-01-07 | 2021-05-25 | 安徽省公路桥梁工程有限公司 | Steel box-concrete combined beam bridge deck formwork system and construction method |
| CN113550233A (en) * | 2021-08-20 | 2021-10-26 | 南通路桥工程有限公司 | Triangular bracket structure for bridge and construction method thereof |
| CN113944235A (en) * | 2021-11-26 | 2022-01-18 | 上海宝冶集团有限公司 | Overhanging support structure of sawtooth-shaped floating plate and support method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105178188B (en) * | 2015-07-10 | 2017-04-12 | 北京市政建设集团有限责任公司 | Triangular frame supporting formwork |
| CN105178188A (en) * | 2015-07-10 | 2015-12-23 | 北京市政建设集团有限责任公司 | Novel triangular frame supporting structure and formwork |
| CN105256997A (en) * | 2015-10-13 | 2016-01-20 | 中国十七冶集团有限公司 | Method for inspecting and regulating installation inclination angle of inclined formwork |
| CN109629457A (en) * | 2017-10-06 | 2019-04-16 | 巴里·沃尔特·杰克逊 | Improved bridge overhanging bracket component |
| CN109958041A (en) * | 2017-12-23 | 2019-07-02 | 蒋芳荣 | A kind of road shoulder concrete construction formwork |
| CN108193599A (en) * | 2017-12-28 | 2018-06-22 | 中铁十局集团第四工程有限公司 | Concrete-steel Beam cast-in-place flange plate cantilevered support structure system and construction method |
| CN109629425A (en) * | 2018-12-06 | 2019-04-16 | 清华大学 | The construction method on pole bracket and the composite steel concrete bridge concrete edge of a wing using pole bracket |
| CN111139745A (en) * | 2019-12-27 | 2020-05-12 | 中冶交通建设集团有限公司 | Construction method for cast-in-place concrete top plate of combined box girder |
| CN112575693A (en) * | 2020-11-30 | 2021-03-30 | 中交路桥建设有限公司 | Cantilever lifting appliance for reinforced concrete composite beam and safety protection method |
| CN112523100A (en) * | 2020-12-09 | 2021-03-19 | 中冶京诚工程技术有限公司 | Template supporting structure of overhead concrete cantilever beam |
| CN112832137A (en) * | 2021-01-07 | 2021-05-25 | 安徽省公路桥梁工程有限公司 | Steel box-concrete combined beam bridge deck formwork system and construction method |
| CN113550233A (en) * | 2021-08-20 | 2021-10-26 | 南通路桥工程有限公司 | Triangular bracket structure for bridge and construction method thereof |
| CN113944235A (en) * | 2021-11-26 | 2022-01-18 | 上海宝冶集团有限公司 | Overhanging support structure of sawtooth-shaped floating plate and support method thereof |
| CN113944235B (en) * | 2021-11-26 | 2023-09-19 | 上海宝冶集团有限公司 | Cantilever supporting structure of zigzag drift plate and supporting method thereof |
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Application publication date: 20131113 |
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