CN202280024U - No.0 block bracket for continuous rigid frame bridge with two-thin-wall piers - Google Patents
No.0 block bracket for continuous rigid frame bridge with two-thin-wall piers Download PDFInfo
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- CN202280024U CN202280024U CN2011204190863U CN201120419086U CN202280024U CN 202280024 U CN202280024 U CN 202280024U CN 2011204190863 U CN2011204190863 U CN 2011204190863U CN 201120419086 U CN201120419086 U CN 201120419086U CN 202280024 U CN202280024 U CN 202280024U
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Abstract
The utility model discloses a No.0 block bracket for a continuous rigid frame bridge with two-thin-wall piers, which belongs to the field of brackets for bridge construction. The No.0 block bracket comprises three rows of reserved holes and crossbeams, connecting plates are arranged on the reserved holes on the outer side of a pier body, two groups of trusses are erected on the connecting plates, the crossbeams are distributed on the trusses, each group of trusses is hinged with an inclined rod, balance rods are arranged at the joints of the inclined rods and the pier body and arranged in the third row of reserved holes on the inner side of the pier body. The bracket can be assembled, load of the No.0 block is transmitted to the crossbeams through a steel formwork support and is transmitted to the trusses through the crossbeams, and the problems of difficulty in construction, low material utilization rate and high deformation after stress is applied and the like are solved. The No.0 block bracket has the advantages of simple structure, convenience in mounting and demounting, fast construction progress, safety, reliability and capability of improving durability of the bridge.
Description
Technical field
The utility model relates to bridge construction and uses the carriage field, is specifically related to No. 0 piece carriage of a kind of pair of Thin-Wall Piers continuous rigid frame bridge.
Background technology
Continuous rigid frame bridge is to be the pier beam consolidation system that base growth is got up with the continuous beam, and the loading characteristic of continuous beam and T shape rigid frame bridge is integrated, and forms as girder and with thin-wall piers is fixed with the continuous beam body.In recent years, along with the science and technology and the fast development of communication, to have a structural integrity good because of it for continuous rigid frame bridge; Anti-seismic performance is excellent; Antitorque potentiality are big, and structure stress is reasonable, advantages such as bridge type brevity and lucidity; And the convenience in competitiveness economically and the construction, obtained at home using widely.
The bridge pier cross section of continuous rigid frame bridge often makes the steel concrete Thin-Wall Piers, and the most frequently used is vertical single Thin-Wall Piers or vertically two Thin-Wall Piers.Vertically two Thin-Wall Piers abbreviate two Thin-Wall Piers as; It is that two Dun Bi that are parallel to each other and the fixed bridge pier of girder are arranged on the pier position; Be desirable flexible pier in continuous rigid frame bridge, it can be when supporting superstructure, and the stability that keeps bridge pier is to adapt to the needs of superstructure displacement; Therefore, distribution of the internal force of two Thin-Wall Piers continuous rigid frame bridges and material stress performance all are superior to the continuous rigid frame bridge of other pier shapes.The construction of No. 0 piece in two Thin-Wall Piers continuous rigid frame bridges is crucial, need during construction analog bracket on pier shaft top to bear the piece working load No. 0.Bracket design need be considered concrete deadweight, and template system weight, crowd's facility weight, wind carry, impact load or the like.
Existing carrier structure to No. 0 piece construction is floor stand mostly, and its installation period is long, and dismounting bothers, needs to drop into a large amount of temporory structuries, and stock utilization is low; Cost is high, and poor stability is particularly for The water is deep and the current fast; Dimension of platform is less, the exposed basement rock construction of morning and evening tides, constructional difficulties.Application number is the structure that 201120032066.0 Chinese patent discloses No. 0 piece carriage of a kind of high pier large span continuous rigid frame bridge, and said carrier structure comprises joist, transverse distribution beam, vertical distribution beam, has reduced difficulty of construction and construction cost; Shortened the duration; But this carriage is constructed at main pier and established the preformed hole of 23 * 62 * 200cm apart from the Dun Ding pre-position, and the preformed hole size is bigger, and is bigger to the influence of pier shaft structural strength; The built-in i iron of preformed hole is as the carriage load-bearing; I iron and preformed hole gap are bigger, and stressed back deformation space is bigger, also need pre-buried steel part and lay reinforced mesh to bear local pressure; Though it is construction is more convenient than floor stand, still cumbersome comparatively speaking.
The utility model content
The main purpose of the utility model aim to provide a kind of easy accessibility, safe and reliable, stock utilization is high, can improve No. 0 piece carriage of two Thin-Wall Piers continuous rigid frame bridges of bridge durability, has solved the problem that carriage exists in the above-mentioned background technology.
The above-mentioned technical purpose of the utility model is achieved through following technical scheme: No. 0 piece carriage of a kind of pair of Thin-Wall Piers continuous rigid frame bridge; Comprise the preformed hole that is arranged on the pier shaft; Crossbeam is characterized in that: said preformed hole has three rows, is respectively equipped with junction plate on the preformed hole in the pier shaft outside; Erection truss on the junction plate is laid crossbeam on the truss; A hinged brace on said every group of truss, said brace and pier shaft junction are provided with balancing pole, and said balancing pole is located in the 3rd inboard row's preformed hole of pier shaft.
By on can know that the carriage of the utility model adopts pin-connected panel, No. 0 the piece load is delivered to crossbeam through the template steelframe, is passed to truss through crossbeam then.
Preferred as the utility model; Said junction plate is fixed on the preformed hole in the pier shaft outside through the bolt hole that fining twisted steel passes on it; Use fining twisted steel to couple together junction plate and pier shaft, thereby need not strengthen pier shaft at the preformed hole place, the fining twisted steel diameter can be selected 32mm or 25mm for use; Thus, the layout of the every row's preformed hole of the utility model is confirmed according to bolt hole position on the junction plate and quantity.
Preferred as the utility model also is respectively equipped with longeron and following longeron in order to bear in first inboard row's preformed hole of the said pier shaft of horizontal pull that truss passes over and the second row's preformed hole.
Preferred as the utility model; Said truss is a shellfish thunder frame; Pin joint hole through on the junction plate is fixed, and also is provided with stiffener on the said junction plate, and above-mentioned every group of shellfish thunder frame lifts after installation on ground is good through shellfish thunder frame connecting pin again and be fixed in the pin joint hole; The pin-and-hole place selects for use and strengthens chord member sun head, and its material is done for the 16Mn steel.
Preferred as the utility model; The vertical distance of the pin joint hole centre distance Dun Ding of the junction plate of said first row's preformed hole is 45 ~ 55cm; The vertical distance at the center, pin joint hole of the junction plate of pin joint hole centre distance first row's preformed hole of the junction plate of said second row's preformed hole is 100 ~ 200cm, and the vertical distance at the center, pin joint hole of the junction plate of pin joint hole centre distance second row's preformed hole of the junction plate of said the 3rd row's preformed hole is 300 ~ 500cm.
Preferred as the utility model, said preformed hole diameter is 40mm or 32mm, the preformed hole size is less, need not cut off pier shaft master muscle, does not weaken the pier shaft structural strength basically.
Preferred as the utility model; Said crossbeam is selected I32a type i iron or [the common channel-section steel of 36c type hot rolling or [two other intensity of the common channel-section steel of hot rolling of 28a type, rigidity, the approaching similar section bar of size for use; Consider different between encorbelment part and Thin-Wall Piers, the crossbeam that the part of encorbelmenting is used should be more than the crossbeam number between Thin-Wall Piers.
It is that [the 16a type is pair common channel-section steels or I25c type i iron or φ 102 * 5.0mm hot rolling common steel tube and other intensity, rigidity, the approaching similar material of size mouth to mouth that preferred as the utility model, said brace are adopted specification.
Preferred as the utility model, said balancing pole is selected I22a type i iron or [18 type channel-section steels or HW125 * 125 hot rolling h section steels and other intensity, rigidity, the approaching similar material of size for use.The use of this balancing pole is for avoiding Thin-Wall Piers that bending failure takes place because of pressure is excessive, with the horizontal pressure force of balance brace to Thin-Wall Piers.
Preferred as the utility model also is provided with the support bar parallel with crossbeam on the said brace.
Indication pier shaft inboard is two thin-walled two pier shafts sides in opposite directions in the utility model.
In sum, the utility model compared with prior art has following outstanding advantage and beneficial effect:
1, the utility model adopts the pin-connected panel carriage; Dismounting is easy; Accelerating construction progress satisfies the bridge durability requirement simultaneously greatly, is specially adapted to that dimension of platform is less, bridge environment of living in is abominable as the carriage of seawater, pair No. 0 pieces of Thin-Wall Piers continuous rigid frame bridge such as The water is deep and the current fast;
2, the utility model is less with respect to the documents preformed hole size in the background technology; Need not cut off pier shaft master muscle; Basically do not weaken the pier shaft structural strength; And be provided with balancing pole, upper and lower longeron difference balance brace and Bei Lei frame horizontal pressure force, guaranteed convenience, the safety and reliable of construction thin-walled;
3, through fining twisted steel junction plate and pier shaft are coupled together in the utility model, the frictional force of junction plate and pier shaft has been offset the power that the truss transmission comes, and the distortion of stressed back is little, and the equilibrium that helps power distributes;
4, the utility model truss part all adopts pin joints, easy accessibility, and materials such as truss, brace, balancing pole all can reclaim and recycle, and stock utilization is high, can reduce the temporary works input, has good economic benefit and social effect.
Description of drawings
Fig. 1 is the longitudinal section of the utility model embodiment;
Fig. 2 is the cross-sectional view of the utility model embodiment;
Fig. 3 is the perspective view of the utility model embodiment junction plate;
Wherein, 1 be first row preformed hole, 2 be second row preformed hole, 3 be the 3rd row preformed hole, 4 be last longeron, 5 under longeron; 6 is crossbeam, and 7 is pier shaft, and 8 is truss, and 9 is brace, and 10 is balancing pole; 11 is junction plate, and 12 is bolt hole, and 13 is the pin joint hole, and 14 is stiffener, and 15 is support bar.
The specific embodiment
Below in conjunction with embodiment and accompanying drawing the utility model is done further explain.
Embodiment 1: like Fig. 1, Fig. 2 and shown in Figure 3, two Thin-Wall Piers continuous rigid frame bridges, main bridge are 40m+48m+2 * 70m+2 * 48m continuous rigid frame bridge; Main pier adopts the Reinforced Concrete Double Thin-Wall Piers, bored pile foundation, and main pier adopts the rectangle cushion cap; Long 8.9m, wide 5.7m, thickness are 2.5m; Main pier dimension of platform is less, and is in the river environment that The water is deep and the current fast, its No. 0 piece carrier structure; Comprise that the diameter that is arranged on the pier shaft 7 is the preformed hole of 40mm, be respectively equipped with junction plate 11 on the preformed hole in the pier shaft outside, can know by Fig. 1; This preformed hole has three rows, and corresponding junction plate 11 also has three rows, and the utility model is reserved every row's preformed hole according to bolt hole 12 numbers of junction plate 11; Junction plate 11 is that the bolt hole 12 that 32 fining twisted steel passes on it is fixed on the preformed hole in pier shaft 7 outsides through diameter, and for the equilibrium that guarantees that whole pier shaft is stressed, the vertical distance of the centre distance Dun Ding in the pin joint hole 13 of the junction plate 11 of first row's preformed hole 1 is 45cm; The vertical distance at the center in the junction plate 11 pin joint holes 13 of the centre distance first row preformed hole 1 in the pin joint hole 13 of the junction plate 11 of second row's preformed hole 2 is 100cm, the junction plate 1 of centre distance second row's preformed hole 2 in the pin joint hole 13 of the junction plate 11 of the 3rd row's preformed hole 3 the vertical distance at center in pin joint hole 13 be 300cm, erection truss 8 on the junction plate 11; The two mouth to mouth common channel-section steels of a hinged 16a are as brace 9 on every group of truss 8; Truss 8 is preferably selected shellfish thunder frame for use, and the pin joint hole on the junction plate 11 13 is fixing, and junction plate 11 is provided with stiffener 14 with further reinforcement intensity; Make shellfish thunder frame not yielding; Be laid with I32a type i iron crossbeam 6 on the shellfish thunder frame, the main pier section of encorbelmenting is made up of 6 road crossbeams 6, is made up of 3 road crossbeams 6 between Thin-Wall Piers.For avoiding Thin-Wall Piers that bending failure takes place because of pressure is excessive; Need between two Thin-Wall Piers, I22a type i iron be set as balancing pole 10, with the horizontal pressure force of 9 pairs of Thin-Wall Piers of balance brace, as a same reason in corresponding brace 9 positions; For the horizontal pressure force of balance shellfish thunder frame to Thin-Wall Piers; Also be respectively equipped with longeron 4 and following longeron 5 in the inboard first row's preformed holes 1 of pier shaft 7 and the second row's preformed hole 2, for make carriage stablize, firm, also be provided with the support bar 15 parallel on the brace 9 with crossbeam 6.
Embodiment 2
Be with embodiment 1 difference: the preformed hole diameter is 32mm; And the vertical distance of the centre distance Dun Ding in the pin joint hole 13 of the junction plate 11 of first row's preformed hole 1 is 52cm; The vertical distance at the center in the junction plate 11 pin joint holes 13 of centre distance first row's preformed hole 1 in the pin joint hole 13 of the junction plate 11 of second row's preformed hole 2 is 140cm; The junction plate 1 of the centre distance second row preformed hole 2 in the pin joint hole 13 of the junction plate 11 of the 3rd row's preformed hole 3 the vertical distance at center in pin joint hole 13 be 350cm; Crossbeam 6 adopt [the common channel-section steel of 36c type hot rolling, brace 9 uses I25c type i iron, balancing pole 10 selects that [18 types are the dimorphism channel-section steel mouth to mouth for use.
Embodiment 3
Be with embodiment 1 difference: the vertical distance of the centre distance Dun Ding in the pin joint hole 13 of the junction plate 11 of first row's preformed hole 1 is 55cm; The vertical distance at the center in the junction plate 11 pin joint holes 13 of centre distance first row's preformed hole 1 in the pin joint hole 13 of the junction plate 11 of second row's preformed hole 2 is 200cm; The junction plate 1 of the centre distance second row preformed hole 2 in the pin joint hole 13 of the junction plate 11 of the 3rd row's preformed hole 3 the vertical distance at center in pin joint hole 13 be 500cm; Crossbeam 6 adopts that [the 28a type mouth to mouth or two back-to-back common channel-section steel of hot rolling; [the two mouth to mouth common channel-section steels of 16a type, balancing pole 10 is selected HW125 * 125 hot rolling h section steels for use in brace 9 uses.
Adopt the carriage of the utility model to carry out the construction of two Thin-Wall Piers continuous rigid frame bridge 0# pieces; The result shows; Accelerating construction progress greatly; Satisfy the bridge durability requirement simultaneously and reduce the temporary works input, solution be the not enough problem of strength and stiffness of two Thin-Wall Piers, reached predetermined construction target.
This specific embodiment only is to explanation of the present invention; It is not the restriction to invention; Those skilled in the art can make any modification to present embodiment as required after reading this manual, but as long as in claim scope of the present invention, all receive the protection of Patent Law.
Claims (10)
1. two No. 0 piece carriage of Thin-Wall Piers continuous rigid frame bridge; Comprise the preformed hole that is arranged on the pier shaft (7); Crossbeam (6) is characterized in that: said preformed hole has three rows, is respectively equipped with junction plate (11) on the preformed hole in pier shaft (7) outside; Junction plate (11) is gone up erection truss (8), and truss (8) is gone up and laid crossbeam (6); Said every group of truss (8) gone up a hinged brace (9), and said brace (9) is provided with balancing pole (10) with pier shaft (7) junction, and said balancing pole (10) is located in the 3rd inboard row's preformed hole (3) of pier shaft (7).
2. No. 0 piece carriage of a kind of pair of Thin-Wall Piers continuous rigid frame bridge according to claim 1 is characterized in that: said junction plate (11) is fixed on the preformed hole in pier shaft (7) outside through the bolt hole (12) that fining twisted steel passes on it.
3. No. 0 piece carriage of a kind of pair of Thin-Wall Piers continuous rigid frame bridge according to claim 1 and 2 is characterized in that: also be respectively equipped with longeron (4) and following longeron (5) in first row's preformed hole (1) that said pier shaft (7) is inboard and the second row's preformed hole (2).
4. No. 0 piece carriage of a kind of pair of Thin-Wall Piers continuous rigid frame bridge according to claim 1; It is characterized in that: said truss (8) is a shellfish thunder frame; Fixing through the pin joint hole (13) on the junction plate (11), also be provided with stiffener (14) on the said junction plate (11).
5. No. 0 piece carriage of a kind of pair of Thin-Wall Piers continuous rigid frame bridge according to claim 4; It is characterized in that: the vertical distance of pin joint hole (13) the centre distance Dun Ding of the junction plate (11) of said first row's preformed hole (1) is 45 ~ 55cm; The vertical distance at the center, pin joint hole (13) of the junction plate (11) of pin joint hole (13) centre distance first row's preformed hole (1) of the junction plate (11) of said second row's preformed hole (2) is 100 ~ 200cm, and the vertical distance at the center, pin joint hole (13) of the junction plate (11) of pin joint hole (13) centre distance second row's preformed hole (2) of the junction plate (11) of said the 3rd row's preformed hole (3) is 300 ~ 500cm.
6. No. 0 piece carriage of a kind of pair of Thin-Wall Piers continuous rigid frame bridge according to claim 5, it is characterized in that: said preformed hole diameter is 40mm or 32mm.
7. No. 0 piece carriage of a kind of pair of Thin-Wall Piers continuous rigid frame bridge according to claim 1 is characterized in that: said crossbeam (6) is selected I32a type i iron or [common channel-section steel of 36c type hot rolling or [the two common channel-section steels of hot rolling of 28a type for use.
8. No. 0 piece carriage of a kind of pair of Thin-Wall Piers continuous rigid frame bridge according to claim 1 is characterized in that: said brace (9) adopts [two mouth to mouth common channel-section steels of 16a type or I25c type i iron.
9. No. 0 piece carriage of a kind of pair of Thin-Wall Piers continuous rigid frame bridge according to claim 1 is characterized in that: said balancing pole (10) is selected I22a type i iron or [18 type dimorphism channel-section steels or HW125 * 125 hot rolling h section steels for use.
10. according to claim 1 or No. 0 piece carriage of 2 or 4 or 5 or 6 or 7 or 8 or 9 arbitrary described a kind of pair of Thin-Wall Piers continuous rigid frame bridges, it is characterized in that: also be provided with the support bar (15) parallel on the said brace (9) with crossbeam (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204190863U CN202280024U (en) | 2011-10-28 | 2011-10-28 | No.0 block bracket for continuous rigid frame bridge with two-thin-wall piers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204190863U CN202280024U (en) | 2011-10-28 | 2011-10-28 | No.0 block bracket for continuous rigid frame bridge with two-thin-wall piers |
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| Publication Number | Publication Date |
|---|---|
| CN202280024U true CN202280024U (en) | 2012-06-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204190863U Expired - Lifetime CN202280024U (en) | 2011-10-28 | 2011-10-28 | No.0 block bracket for continuous rigid frame bridge with two-thin-wall piers |
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| CN (1) | CN202280024U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN103205937A (en) * | 2013-04-25 | 2013-07-17 | 中铁八局集团第一工程有限公司 | Universal member pre-buried node and installing method thereof |
| CN105386413A (en) * | 2015-10-13 | 2016-03-09 | 正平路桥建设股份有限公司 | Construction method of I-beam penetration type overhanging bracket system |
| CN107100081A (en) * | 2017-06-15 | 2017-08-29 | 中铁十六局集团第三工程有限公司 | A kind of Sarasota crossbeam installs supporting construction |
| CN107165056A (en) * | 2017-07-13 | 2017-09-15 | 中交二航局第四工程有限公司 | Antidumping rod iron support and its installation method for cantilever bent cap concreting |
| CN109356037A (en) * | 2018-11-26 | 2019-02-19 | 中铁六局集团有限公司 | Middle pier trusses and its construction method |
| CN111395168A (en) * | 2020-03-13 | 2020-07-10 | 中铁六局集团广州工程有限公司 | Continuous rigid frame separation type 0# block temporary filling device and construction method |
-
2011
- 2011-10-28 CN CN2011204190863U patent/CN202280024U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN103205937A (en) * | 2013-04-25 | 2013-07-17 | 中铁八局集团第一工程有限公司 | Universal member pre-buried node and installing method thereof |
| CN105386413A (en) * | 2015-10-13 | 2016-03-09 | 正平路桥建设股份有限公司 | Construction method of I-beam penetration type overhanging bracket system |
| CN107100081A (en) * | 2017-06-15 | 2017-08-29 | 中铁十六局集团第三工程有限公司 | A kind of Sarasota crossbeam installs supporting construction |
| CN107165056A (en) * | 2017-07-13 | 2017-09-15 | 中交二航局第四工程有限公司 | Antidumping rod iron support and its installation method for cantilever bent cap concreting |
| CN109356037A (en) * | 2018-11-26 | 2019-02-19 | 中铁六局集团有限公司 | Middle pier trusses and its construction method |
| CN109356037B (en) * | 2018-11-26 | 2023-12-15 | 中铁六局集团有限公司 | Middle pier truss girder and construction method thereof |
| CN111395168A (en) * | 2020-03-13 | 2020-07-10 | 中铁六局集团广州工程有限公司 | Continuous rigid frame separation type 0# block temporary filling device and construction method |
| CN111395168B (en) * | 2020-03-13 | 2021-12-03 | 中铁六局集团广州工程有限公司 | Continuous rigid frame separation type 0# block temporary filling device and construction method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120620 |
|
| CX01 | Expiry of patent term |