CN204510019U - A kind of ramp down angle tall pier and thin wall calf support - Google Patents

A kind of ramp down angle tall pier and thin wall calf support Download PDF

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Publication number
CN204510019U
CN204510019U CN201520202311.6U CN201520202311U CN204510019U CN 204510019 U CN204510019 U CN 204510019U CN 201520202311 U CN201520202311 U CN 201520202311U CN 204510019 U CN204510019 U CN 204510019U
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China
Prior art keywords
pier
steel plate
billet
shaft
bridge pier
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CN201520202311.6U
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Chinese (zh)
Inventor
石怀远
沈维成
刘向前
彭申凯
刘晓晗
刘邓
李绍鹏
冯林
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Anhui Road and Bridge Engineering Co Ltd
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Anhui Road and Bridge Engineering Co Ltd
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Abstract

The utility model discloses a kind of ramp down angle tall pier and thin wall calf support, it is characterized in that the i iron bracket that is made up of diagonal brace and horizontal brace and end billet are welded as a whole, billet is reserved with lacing hole; Each anti-shear steel plate bar is the arrangement in " one " word interval at the Support Position place of bridge pier pier shaft, and anti-shear steel plate bar is embedded in the sidepiece of bridge pier pier shaft, and the revealed section of each anti-shear steel plate bar jointly welds leveling form body structure by flattening steel plate; Horizontal brace in the i iron bracket box top of taking fall corresponding position vertical with diagonal brace, form upper fulcrum and lower fulcrum respectively, billet and bridge pier pier shaft are fitted; The i iron bracket being symmetricly set on bridge pier pier shaft both sides utilizes the lacing hole on billet to wearing fining twisted steel on bridge pier pier shaft, and by bolt anchoring.The utility model neither destroys the integrality of main pier encryption bar construction, and safety is stressed to make again it ensure in the contour structures that shaft of high pier is changeable, constructs easy to implement.

Description

A kind of ramp down angle tall pier and thin wall calf support
Technical field
The utility model relates to the tall pier and thin wall bracket in Bridge Construction, is specifically related to high pier 0# block calf support.
Background technology
For the construction of tall pier and thin wall bridge, its 0# block is one of critical control link in work progress, is in complex topographic area territory at bridge, and construction period is tight, when being difficult to use floor stand construction, normally adopts bracket construction method.The change of 0# block traveling load complexity, bridge pier pier shaft is because seismic design not only arranges encryption reinforcing bar, and pier shaft profile usually occurs broken line, and too utilizes main pier built-in fitting can destroy main pier integrality.
Bridge pier pier shaft 2 shown in Fig. 1 a occurs ramp down angle body, and bridge pier reinforcing bar is densely arranged, and spacing is less, requires higher for pre-buried assembly, and general conventional pre-buried carrier structure is difficult to ensure not destroy main pier reinforcing bar substantially.Ramp down angle meeting loss pulling force, cause structure stress negatively influencing, be increase the mounting structures scale of construction to increase safe surplus coefficiert in prior art, this obviously increases construction cost, increases construction complexity.
Utility model content
The utility model is the weak point for avoiding existing for above-mentioned prior art, a kind of ramp down angle tall pier and thin wall calf support is provided, neither destroy the integrality of main pier encryption bar construction, safety is stressed to make again it ensure in the contour structures that shaft of high pier is changeable, constructs easy to implement.
The utility model is that technical solution problem adopts following technical scheme:
The design feature of the utility model ramp down angle tall pier and thin wall calf support is: the i iron bracket be made up of diagonal brace and horizontal brace and end billet are welded as a whole, and described billet is reserved with lacing hole; Each anti-shear steel plate bar is the arrangement in " one " word interval at the Support Position place of bridge pier pier shaft, and described anti-shear steel plate bar is embedded in the sidepiece of bridge pier pier shaft, and the revealed section of each anti-shear steel plate bar jointly welds leveling form body structure by flattening steel plate; Horizontal brace in the i iron bracket box top of taking fall corresponding position vertical with diagonal brace, form upper fulcrum and lower fulcrum respectively, billet and bridge pier pier shaft are fitted; The i iron bracket being symmetricly set on bridge pier pier shaft both sides utilizes the lacing hole on billet to wearing fining twisted steel on bridge pier pier shaft, and by bolt anchoring.
The design feature of the utility model ramp down angle tall pier and thin wall calf support is also: the thickness of described anti-shear steel plate bar is not less than 2.5cm.
Compared with the prior art, the utility model beneficial effect is embodied in:
1, the utility model utilizes 0# load-bearing stress characteristic, dissolve structure stress system pointedly, adopt and bear pulling force to wearing fining twisted steel, split steel plate strip bears shearing, bracket i iron self bears moment of flexure, specify structure stress object, considerably increase safety factor, all applicable to high-pier bracket construction under various orographic condition;
2, the utility model bracket global shape is triangular in shape, the construction side formed with bridge pier pier shaft is cup shape, form a self-locking and close stress system, the pulling force of upper fulcrum bracket and the bracket pressure of lower fulcrum close, and take full advantage of pier shaft self structure rigidity.
3, the utility model is not in order to cause the injury to main pier reinforcing bar as far as possible when bracket is constructed, adopt steel plate strip split production, be embedded in bridge pier pier shaft respectively, exposed parts is formed with leveling steel plate and overlaps box structure, add structural stability, especially be applicable to the intensive bridge pier of main pier reinforcing bar to use, reinforcement construction position can not be encrypted by the main pier of disturbance, well play again the stress performance of pre-buried bracket.
4, prefabricated in the utility model billet can be pressed close to identical with the pier shaft of any chamfering, adds versatility.
5, the utility model in construction without the need to the operation of Site Welding combined member, the unified preparation of back court, on-the-spot installation in place, and it is very convenient, greatly improve construction speed, be particluarly suitable for using in the twin legged thin wall pier at ramp down angle, its construction method is simple and reliable, without the need to the equipment of complexity, construction cost is low, construction feasibility is high.
Accompanying drawing explanation
Fig. 1 a is abutment big and heavy stone body schematic diagram in the utility model;
Fig. 1 b is fining twisted steel and anti-shear steel plate bar position distribution schematic diagram in bridge pier pier shaft in the utility model;
Fig. 2 is the utility model carrier structure schematic diagram;
Fig. 3 a is that in the utility model, fining twisted steel coordinates schematic diagram with billet;
Fig. 3 b is fining twisted steel and billet counterface schematic diagram in the utility model;
Fig. 4 a is that in the utility model, anti-shear steel plate bar coordinates schematic diagram with leveling steel plate;
Fig. 4 b is the end view of Fig. 4 a.
Number in the figure: 1 i iron bracket, Bridge 2 pier pier shaft, 3 billets, 4 fining twisted steels, 5 anti-shear steel plate bars, 6 leveling steel plates.
Detailed description of the invention
See Fig. 1 a, Fig. 1 b and Fig. 2, in the present embodiment, the form of structure of ramp down angle tall pier and thin wall calf support is:
The i iron bracket 1 and the end billet 3 that are made up of diagonal brace and horizontal brace are welded as a whole, and described billet 3 is reserved with lacing hole; Each anti-shear steel plate bar 5 is the arrangement in " one " word interval at the Support Position place of bridge pier pier shaft 2, the pre-buried sidepiece being fixed on bridge pier pier shaft 2 of described anti-shear steel plate bar 5, and the revealed section of each anti-shear steel plate bar 5 forms body structure by flattening the common welding leveling of steel plate 6; Horizontal brace in i iron bracket 1 box top of taking fall corresponding position vertical with diagonal brace, form upper fulcrum and lower fulcrum respectively, billet 3 and bridge pier pier shaft 2 are fitted; The i iron bracket 1 being symmetricly set on bridge pier pier shaft 2 both sides utilizes the lacing hole on billet 3 to wearing fining twisted steel 4 on bridge pier pier shaft 2, and by bolt anchoring, the thickness arranging anti-shear steel plate bar 5 is not less than 2.5cm.
In the present embodiment, ramp down angle tall pier and thin wall calf support is constructed according to the following procedure:
1, i iron bracket 1 is welded formation union body structure with billet 3, whole welding process can be prefabricated in advance at processing space, and directly moving job site to can use.
2, accurate setting-out in the construction of bridge pier pier shaft 2, advance reservation is to wearing threaded rod hole.The end face of split anti-shear steel plate bar 5 revealed section and bottom surface are welded to be formed with leveling steel plate 6 respectively and overlaps box structure, as shown in figures 4 a and 4b, accurate embedding casing locations of structures in construction, makes bracket i iron 1 can precisely install in next stage lifting and assembled process.
3, by structure that bracket i iron 1 and billet 3 are formed, being lifted on bridge pier exposes on the casing structural plane that steel plate strip 5 and leveling steel plate 6 formed, it is consistent that the hole location of adjustment billet 3 and reserved threaded rod position lead to the heart, and on-the-spot directly employing Φ 32 fining twisted steel 4 pairs of piercing holes are also fixed on billet 3 after being stretched to the prestressing force of setting.
4, for ensureing construction quality, carefully checking billet seaming position space, steel thin slice can be clogged at space larger part, ensure structure uniform stressed.
In structure shown in Fig. 2, the accurate installation of angle all by regulating the soldering angle of billet 3 to complete carrier structure at the ramp down angle that pier shaft top is different, on built-in fitting, the soldering angle of fulcrum and each billet 3 of lower fulcrum place should calculate in advance according to the installation site of bracket i iron, and it is assembled to carry out examination in advance.The degree of depth that pre-buried anti-shear steel plate bar 5 imbeds pier shaft position must not be less than 45cm, and the spacing of split anti-shear steel plate bar 5 regulates according to the width of bracket i iron 1, fully ensure that leveling steel plate 6 is formed with anti-shear steel plate bar 5 and firmly overlaps box structure.
The each structure forming bracket in the present embodiment is independent of one another, does not substantially need to weld at construction one field of line, on-the-spot directly to the assembled anchoring of the sub-unit that processing factory is soldered, and installation and removal are all very quick convenient.

Claims (2)

1. a ramp down angle tall pier and thin wall calf support, is characterized in that: the i iron bracket (1) be made up of diagonal brace and horizontal brace and end billet (3) are welded as a whole, and described billet (3) is reserved with lacing hole; Each anti-shear steel plate bar (5) is the arrangement in " one " word interval at the Support Position place of bridge pier pier shaft (2), described anti-shear steel plate bar (5) is embedded in the sidepiece of bridge pier pier shaft (2), and the revealed section of each anti-shear steel plate bar (5) forms body structure by flattening the common welding leveling of steel plate (6); Horizontal brace in i iron bracket (1) box top of taking fall corresponding position vertical with diagonal brace, form upper fulcrum and lower fulcrum respectively, billet (3) and bridge pier pier shaft (2) are fitted; The i iron bracket (1) being symmetricly set on bridge pier pier shaft (2) both sides utilizes the lacing hole on billet (3) to wearing fining twisted steel (4) on bridge pier pier shaft (2), and by bolt anchoring.
2. ramp down angle according to claim 1 tall pier and thin wall calf support, is characterized in that: the thickness of described anti-shear steel plate bar (5) is not less than 2.5cm.
CN201520202311.6U 2015-04-03 2015-04-03 A kind of ramp down angle tall pier and thin wall calf support Active CN204510019U (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106522100A (en) * 2016-11-13 2017-03-22 中交路桥建设有限公司 Separated dismantling and hoisting method for large-scale corbels used for high pier construction
CN106758822A (en) * 2016-11-23 2017-05-31 中铁二十二局哈尔滨铁路建设集团有限责任公司 A kind of cast-in-place bracket of assembly concrete connects wall node
CN107574761A (en) * 2017-09-27 2018-01-12 中交路桥技术有限公司 Truss is connected in a kind of bridge incremental launching construction between pier to pull-type attachment means
CN110106775A (en) * 2019-04-01 2019-08-09 安徽省公路桥梁工程有限公司 Prefabricated PC calf support and its construction method
CN110886187A (en) * 2019-10-18 2020-03-17 安徽省路港工程有限责任公司 Cable crane system installation system and construction method thereof

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106522100A (en) * 2016-11-13 2017-03-22 中交路桥建设有限公司 Separated dismantling and hoisting method for large-scale corbels used for high pier construction
CN106522100B (en) * 2016-11-13 2018-04-06 中交路桥建设有限公司 A kind of large-scale bracket separate type for high pier construction is removed and hanging method
CN106758822A (en) * 2016-11-23 2017-05-31 中铁二十二局哈尔滨铁路建设集团有限责任公司 A kind of cast-in-place bracket of assembly concrete connects wall node
CN107574761A (en) * 2017-09-27 2018-01-12 中交路桥技术有限公司 Truss is connected in a kind of bridge incremental launching construction between pier to pull-type attachment means
CN110106775A (en) * 2019-04-01 2019-08-09 安徽省公路桥梁工程有限公司 Prefabricated PC calf support and its construction method
CN110886187A (en) * 2019-10-18 2020-03-17 安徽省路港工程有限责任公司 Cable crane system installation system and construction method thereof

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