CN102953344B - Climbing cone type triangular cantilever bracket - Google Patents
Climbing cone type triangular cantilever bracket Download PDFInfo
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- CN102953344B CN102953344B CN201210532652.0A CN201210532652A CN102953344B CN 102953344 B CN102953344 B CN 102953344B CN 201210532652 A CN201210532652 A CN 201210532652A CN 102953344 B CN102953344 B CN 102953344B
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- english truss
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Abstract
The invention discloses a climbing cone type triangular cantilever bracket which consists of a triangular bracket, a climbing cone bolt, a cone-shaped nut, a steel plate, a steel mesh and a permanent seat. The permanent seat is fixedly arranged on the side face of a pier body through match of a screw and the cone-shaped nut. The upper end on one side of the triangular bracket is hinged with the permanent seat while the lower end on another side is fixedly arranged on the side face of the pier body through the screw. The use level of materials of the whole bracket is small and the pier bodyloss rate is low, and the bracket can be repeatedly used, so that the construction cost is lowered. The bracket is in a split mounting type pin joint structure, so that the bracket is erected and detached in a short time and high is construction efficiency, and the process step transfer time can be shortened. The cone-shaped nut is adopted, so that the pier body can be repaired after the bracket is detached, the a pre-buried hole is small, the pier body is convenient to repair, and the shape of the pier body is less affected. Particularly, the steel plate and the steel mesh are pre-buried in the pier body, so that crack of the pier body bearing the bracket is effectively prevented, the anti-shearing force and anti-pressure ability of the pier body are improved, and meanwhile, the riveting property of the climbing cone bolt is further enhanced to provide the probability of supporting the cantilever of a cast-in-place box beam.
Description
Technical field
The present invention relates to the support that a kind of building trade is used, particularly relate to a kind of Continuous Rigid Box Beam and to construct support used.
Background technology
China Intellectual Property Office discloses on July 13rd, 2011 Patent Application Publication that publication number is CN102121233A, the patent application disclose a kind of construction method of bridge cast-in-place box beam, be characterized in: construction method comprises cast-in-situ box girder bottom basement process, the setting up of support, the support of case side template and the cast of box beam concrete; Basement process adopts dirt to change ground and fills out; Support bottom adopts the lumps of wood to support, and spreads Internal force of support, support along bridge to, direction across bridge, short transverse arrange, between bottom support and case beam, the two-layer lumps of wood is set and supports; The support of case side template adopts set shaped steel formwork; The cast of box beam concrete adopts the technique of twice cast to construct.Described construction method of bridge cast-in-place box beam, be characterized in: basement process adopt dirt to ground change fill out time, adopt three step 37 lime earths to change ground to fill out, often walking thickness is 20-40cm, total process thickness is 80-100cm, adopt plant equipment to carry out compacting, adopt original position ground loading test equipment to carry out loading test, bearing capacity of foundation soil 250-500kPa.The lumps of wood sectional dimension of support bottom is 15-25 × 15-24cm.
The construction of above-mentioned Continuous Rigid Box Beam, the steel pipe support of console mode or timbering is mainly adopted to support cast-in-situ box girder, there are following shortcomings and deficiencies in such support: 1, materials'use amount is large, all transfer efficients are low, spillage of material is large, especially steel pipe loss is large especially, greatly increases construction cost.2, support is set up, time of removing is longer, and efficiency of construction is low, has a strong impact on operation conversion time.3, in such support overlap joint process, high to field worker welding requirements, work high above the ground face is many, is difficult to welding quality when ensureing work high above the ground and job safety.
Summary of the invention
In order to overcome above-mentioned deficiency, the object of the present invention is to provide a kind of accelerate efficiency of construction, reduce material wastage rate, reduce construction control points, can repeatedly have enough to meet the need uses, saving construction cost climb bevel-type triangular cantilever bracket.
For solving the problems of the technologies described above, the technical solution adopted in the present invention is:
Climb bevel-type triangular cantilever bracket, it is by tripod, climb cone bolt, tapered cup nut, steel plate, steel mesh and holder are formed, described climbing bores the top that bolt level is embedded in pier shaft, described steel mesh is vertically embedded in pier shaft and the close rear end climbing cone bolt, with described, the surface of steel mesh climbs that to bore bolt vertical, steel plate is located at the front end climbing cone bolt, tapered cup nut is embedded in pier shaft, its one end with climb the nose threads of boring bolt and be connected, the other end is concordant with the side of pier shaft, described holder is fixed on the side of pier shaft by screw with coordinating of tapered cup nut, upper end and the holder of described tripod side are hinged, the lower end of its side is screwed on the side of pier shaft.
Described tripod is made up of multiple English truss and horizontal-associate, is parallel to each other and spaced apart and connect into an entirety by horizontal-associate between multiple English truss, the corresponding holder described in upper end of each English truss.
The side of described pier shaft is fixed with a channel-section steel laterally placed, the top, lower end of described each English truss is pressed in the surface of channel-section steel and is screwed.
Described each holder includes square floor and otic placode, otic placode is fixed on the plate face of square floor, climbing described in corresponding four of square floor bores bolt and tapered cup nut, square floor is fixed with coordinating of four tapered cup nuts by four screws, the upper end, side of described English truss by bearing pin and otic placode hinged.
Described holder is also provided with multiple reinforcement steel plate, multiple reinforcement steel plates are distributed in the both sides of otic placode.
Described English truss is made up of triangle frame, multiple web member, junction plate and stiffener, multiple web member in triangle frame with leg-of-mutton anatomical connectivity, junction plate is located on the two sides of the weld between each web member, and stiffener is located at triangle frame surface and the position of close pin joint.
The length of the right-angle side of described triangle frame is 300cm, and the length of another right-angle side is 750cm.
Described English truss is made up of 16Mn Steel material; Bearing pin adopts 40Cr Steel material to make.
Described steel mesh is 16mm by diameter, and to be that the dowel of 50cm is staggered make length.
Beneficial effect of the present invention is: 1, reasonable in design, and truss structure can utilize strength of materials characteristic as far as possible, and the material use amount of whole support material is little, and the proportion of goods damageds are low, and repeatedly can have enough to meet the need use, reduces construction cost.2, support is pin-connected panel pin joint structure, and the time of set up, removing is short, and efficiency of construction is high, can shorten operation conversion time.3, set up in process low to the technical requirements of workman, only need carry out the assembled operation of pin joint to node.On-the-spot work high above the ground face is few, and the work high above the ground time is short, and the security risk in work progress is little.4, adopt tapered cup nut, dismountable rear repairing pier shaft, pre-buried hole is little, and it is convenient to repair, little on external quality of pier impact; 5, especially pre-buried in pier shaft of steel plate and steel mesh, effectively can preventing pier shaft crack when carrying, improve anti-shearing force and the anti-pressure ability of pier shaft, strengthening again the rivet clasp of climbing cone bolt, for the cantilever support of cast-in-situ box girder provides possibility simultaneously; 6, in the English truss in the present invention, set up junction plate and stiffener and adopted 16Mn Steel material to make, having greatly strengthen the supporting capacity of English truss, make it more safe and reliable.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail:
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of tripod shown in Fig. 1;
Fig. 3 is the structural representation of climbing cone bolt and holder shown in Fig. 1;
Fig. 4 is the lateral view shown in Fig. 3;
Fig. 5 is the structural representation of the English truss shown in Fig. 2.
In figure: 1, tripod; 2, cone bolt is climbed; 3, tapered cup nut; 4, steel mesh; 5, steel plate; 6, holder; 7, pier shaft; 8, the side of pier shaft; 9, English truss; 10, horizontal-associate; 11, screw; 12, channel-section steel; 13, square floor; 14, otic placode; 15, steel plate is strengthened; 16, bearing pin; 17, horizontal case beam; 18, triangle frame; 19, web member; 20, junction plate; 21, stiffener.
Detailed description of the invention
As shown in Fig. 1,3,4, climb bevel-type triangular cantilever bracket, it be by tripod 1, climb cone bolt 2, tapered cup nut 3, steel plate 5, steel mesh 4 and holder 6 form, described climbing bores the top that bolt 2 level is embedded in pier shaft 7, described steel plate 5 is vertically embedded in the pier shaft 7 and close front end climbing cone bolt 2, with described, the surface of steel plate 5 climbs that to bore bolt 2 vertical, steel mesh 4 is located at the front end climbing cone bolt 2, tapered cup nut 3 is embedded in pier shaft 7, its one end with climb the nose threads of boring bolt 2 and be connected, the other end is concordant with the side 8 of pier shaft.
As shown in Fig. 1,2,5, described tripod 1 is made up of 7 English trusses 9 and horizontal-associate 10, and the length of the right-angle side of described English truss is 300cm, and the length of another right-angle side is 750cm.To be parallel to each other between multiple English truss 9 and spaced apart and connect into an entirety by horizontal-associate 10.Described English truss 9 is made up of triangle frame 18, multiple web member 19, junction plate 20 and stiffener 21, multiple web member 19 in triangle frame 18 with leg-of-mutton anatomical connectivity, junction plate 20 is located on the two sides of the weld between each web member 19, and stiffener 21 is located at the surface of triangle frame 18 and the position of close pin joint.The corresponding holder 6 in upper end of each English truss 9.Described each holder 6 includes square floor 13 and otic placode 14, otic placode 14 is fixed on the plate face of square floor 13, climbing described in corresponding four of square floor 13 bores bolt 2 and tapered cup nut 3, is fixed on the side 8 of pier shaft by square floor 13 with coordinating of four tapered cup nuts 3 by four screws 11.Described holder 6 is also provided with multiple reinforcement steel plate 15, multiple reinforcement steel plates 15 are distributed in the both sides of otic placode 14, the upper end of described English truss 9 side is hinged with the otic placode 14 in holder 6 by bearing pin 16, the side of described pier shaft 7 is fixed with a channel-section steel 12 laterally placed, the top, lower end of described each English truss 9 is pressed in the surface of channel-section steel 12 and is screwed.
The step of Specific construction application is as follows:
1, pre-buried climbing bores bolt and steel plate: during pier construction, carry out surveying and locating according to support Design drawing, correct embedment block support pier shaft built-in fitting.Cement paste must be taked to protect to pier shaft embedded bar after pier construction completes. antirust treatment is carried out to finish rolling screw thread.Pre-buried climb cone bolt be 4 one group, must ensure time pre-buried 4 climb cone the accurate of pitch of bolts could correspondingly with cage bolt hole install; Pier shaft arranged outside English truss is as stressed bracket, and must ensure time pre-buried that pre-buried point climbs cone bolt height unanimously, be in same plane, guarantee truss chip equalization is stressed.Climb cone bolt and must be close to pier shaft, guarantee that the end face of climbing cone bolt is concordant with pier shaft concrete surface.2, holder is installed: water after concrete completes, remove and climb cone bolt erection bolt and fixing steel plate, carry out holder installation after form removable.Holder is connected by M42 high-strength bolt with climbing to bore, and adopts torque wrench to lock, and single bolt torque power press 200N.m and controlled, and ensures that holder compresses pier shaft concrete surface, the discontinuity equalization problem of improvement 4 high-strength bolts.
3. the installation of English truss: can English truss be installed after holder installation.4. superstructure support installing: i iron is laid as template supporting structure in pier shaft lateralis truss upper strata.5. pre-pressing bracket: after support installing completes, adopt the prefabricated saddle weight of concrete to carry out precompressed to block support, prefabricating load adopts
110% of practice of construction load, precompressed concrete block arranges the load assignment of simulation box beam practice of construction as far as possible, guarantees English truss stress equalization.
6, carry out cast-in-place construction to horizontal case beam 17, the horizontal case beam after having cast is supported by bevel-type triangular cantilever bracket of climbing of the present invention, after horizontal case beam solidification parches, after support removing of the present invention, can reuse in other horizontal box girder construction.
In a word; those skilled in the art although the present invention lists above-mentioned preferred embodiment, should illustrate, although can carry out various change and remodeling; unless such change and remodeling deviate from scope of the present invention, otherwise all should be included in protection scope of the present invention.
Claims (5)
1. climb bevel-type triangular cantilever bracket for one kind, it is characterized in that: it is by tripod, climb cone bolt, tapered cup nut, steel plate, steel mesh and holder are formed, described climbing bores the top that bolt level is embedded in pier shaft, described steel mesh is vertically embedded in pier shaft and the close rear end climbing cone bolt, with described, the surface of steel mesh climbs that to bore bolt vertical, steel plate is located at the front end climbing cone bolt, tapered cup nut is embedded in pier shaft, its one end with climb the nose threads of boring bolt and be connected, the other end is concordant with the side of pier shaft, described holder is fixed on the side of pier shaft by screw with coordinating of tapered cup nut, upper end and the holder of described tripod side are hinged, the lower end of its side is screwed on the side of pier shaft,
Described tripod is made up of multiple English truss and horizontal-associate, is parallel to each other and spaced apart and connect into an entirety by horizontal-associate between multiple English truss, the corresponding holder described in upper end of each English truss;
The side of described pier shaft is fixed with a channel-section steel laterally placed, the top, lower end of described each English truss is pressed in the surface of channel-section steel and is screwed;
Described each holder includes square floor and otic placode, otic placode is fixed on the plate face of square floor, climbing described in corresponding four of square floor bores bolt and tapered cup nut, square floor is fixed with coordinating of four tapered cup nuts by four screws, the upper end, side of described English truss by bearing pin and otic placode hinged;
Described holder is also provided with multiple reinforcement steel plate, multiple reinforcement steel plates are distributed in the both sides of otic placode.
2. according to claim 1ly climb bevel-type triangular cantilever bracket, it is characterized in that: described English truss is made up of triangle frame, multiple web member, junction plate and stiffener, multiple web member in triangle frame with leg-of-mutton anatomical connectivity, junction plate is located on the two sides of the weld between each web member, and stiffener is located at triangle frame surface and the position of close pin joint.
3. that states according to claim 2 climbs bevel-type triangular cantilever bracket, it is characterized in that: the length of the right-angle side of described English truss is 300cm, and the length of another right-angle side is 750cm;
Described English truss is made up of 16Mn Steel material.
4. according to claim 1ly climb bevel-type triangular cantilever bracket, it is characterized in that: bearing pin adopts 40Cr Steel material to make.
5. according to claim 1ly climb bevel-type triangular cantilever bracket, it is characterized in that: described steel mesh is 16mm by diameter, to be that the dowel of 50cm is staggered make length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210532652.0A CN102953344B (en) | 2012-12-12 | 2012-12-12 | Climbing cone type triangular cantilever bracket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210532652.0A CN102953344B (en) | 2012-12-12 | 2012-12-12 | Climbing cone type triangular cantilever bracket |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102953344A CN102953344A (en) | 2013-03-06 |
| CN102953344B true CN102953344B (en) | 2015-01-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210532652.0A Expired - Fee Related CN102953344B (en) | 2012-12-12 | 2012-12-12 | Climbing cone type triangular cantilever bracket |
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Families Citing this family (5)
| 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 |
| CN108842590A (en) * | 2018-09-18 | 2018-11-20 | 王燕春 | The method and bridge of bridge are built for the stiffness bearer of bridge construction, without bracket |
| CN112176885A (en) * | 2020-10-30 | 2021-01-05 | 中建八局第二建设有限公司 | High hollow pier group formwork turnover rapid construction method for viaduct bridge |
| CN113512939A (en) * | 2021-03-12 | 2021-10-19 | 中铁十一局集团第一工程有限公司 | Continuous beam combined type shear key installation construction method and device |
| CN113356097B (en) * | 2021-07-20 | 2023-01-06 | 南京林业大学 | Angle-adjustable bridge single-column pier reinforcing device |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009144411A (en) * | 2007-12-13 | 2009-07-02 | Central Nippon Expressway Co Ltd | Moving work vehicle assembling/disassembling omission method for cantilever erection method, and corrugated steel plate for use in the same |
| CN101660296B (en) * | 2009-09-08 | 2011-01-26 | 中铁九局集团有限公司 | Method for casting concrete 0# block support by continuous beam cantilever |
| CN101761034B (en) * | 2010-03-25 | 2013-05-08 | 中国建筑第六工程局有限公司 | Construction method of side block straight-line segment of cantilever-concreting continuous beam |
| CN201695337U (en) * | 2010-03-25 | 2011-01-05 | 中国建筑第六工程局有限公司 | Straight-line segment bracket of side pier of grouting continuous beam |
| CN201826525U (en) * | 2010-07-27 | 2011-05-11 | 南京道广建筑模板有限公司 | Climbing shuttering system device for buildings |
| CN102261042B (en) * | 2011-06-09 | 2013-03-06 | 四川川交路桥有限责任公司 | Cantilever diagonal bracing bracket for casting bridge pier cover beam |
| CN202194073U (en) * | 2011-07-25 | 2012-04-18 | 中铁四局集团第一工程有限公司 | Large-volume long-cantilever capping beam construction device |
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| CN102953344A (en) | 2013-03-06 |
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Granted publication date: 20150107 Termination date: 20171212 |