CN108487083B - Construction method for bridge abutment lap joint of bridge rigid frame - Google Patents
Construction method for bridge abutment lap joint of bridge rigid frame Download PDFInfo
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- CN108487083B CN108487083B CN201810283510.2A CN201810283510A CN108487083B CN 108487083 B CN108487083 B CN 108487083B CN 201810283510 A CN201810283510 A CN 201810283510A CN 108487083 B CN108487083 B CN 108487083B
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
- E01D21/10—Cantilevered erection
- E01D21/105—Balanced cantilevered erection
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Abstract
The invention discloses a construction method for bridge abutment lapping of a rigid frame of a bridge, which is characterized by comprising the following steps of: (a) processing and preparing a weight flat car, a temporary track, a rail car stop, a traction device and a traction steel wire rope; (b) the bridge floor at the upper parts of the two bridge piers is symmetrically provided with a temporary track of a ballast flat car, a rail car stop, a traction device and a traction steel wire rope to form a ballast device; (c) in the construction process: and when the ballast flat cars are respectively and synchronously pulled to the abutment lapping ends of the rigid frame, constructing the abutment lapping ends of the rigid frame, namely, before the construction of the closure segment, performing concrete pouring and molding construction on the abutment lapping ends. The construction method is easy for bridge rigid frame abutment lap-joint resetting and construction.
Description
Technical Field
The invention relates to a bridge rigid frame, in particular to a construction method for bridge abutment lapping of the bridge rigid frame.
Background
In the traditional bridge abutment lapping construction operation of the bridge rigid frame, a soil piling bag, a water tank or a water drum is usually adopted for carrying out the bridge abutment lapping construction weight conversion operation; the weight pressing method is more original, the weight pressing points in the construction process are more, the operation is complicated, and the work efficiency is low. Secondly, the formation of the bridge abutment lap joint construction weight conversion operation by adopting a soil piling bag, a water tank or a water drum is not standard, and the operation requirements of site safety and civilized construction are difficult to meet; the method mainly adopts a weight conversion operation mode adopted by the lapping construction operation of the bridge abutment of the bridge rigid frame and needs to be improved in the construction technology.
Disclosure of Invention
Aiming at the defects of the prior art, the technical problems to be solved by the invention are as follows: how to provide a construction method for bridge rigid frame abutment lapping, which is easy for bridge rigid frame abutment lapping, pressing, resetting and construction.
In order to solve the technical problems, the invention adopts the following technical scheme:
a construction method for bridge abutment lapping of a bridge rigid frame is characterized by comprising the following steps:
(a) preparation: processing and preparing a ballast flat car a, a ballast flat car b, a temporary track 6 of the ballast flat car, a track car stop 7, a traction device 9 and a traction steel wire rope 10;
(b) installation: firstly, after a hanging basket construction process reaches a closure section position, symmetrically mounting ballasting flat car temporary tracks 6 and railcar stops 7 on the bridge floor at the upper parts of two pier positions, fixing the temporary tracks 6 on the longitudinal position of the bridge floor by adopting foundation bolts, and fixedly mounting the railcar stops 7 at the ends of the ballasting flat car temporary tracks 6; then, installing a ballast flat car a and a ballast flat car b on the bridge floor right above the two piers, and installing a traction device 9 at the end of the temporary track 6 of the ballast flat car; the steel wire rope 10 is connected through the steel frame construction hanging basket 3 in a segmented mode to form a ballast device for bridge steel frame construction;
(c) in the construction process: and (3) performing bridge abutment overlapping end construction of the rigid frame, and when the ballast flat car a and the ballast flat car b are respectively and synchronously pulled to the bridge abutment overlapping end of the rigid frame, performing the bridge abutment overlapping end construction of the rigid frame, namely before the construction of a closure section, performing concrete pouring and molding construction of the bridge abutment overlapping end.
The method is characterized in that: the construction method for bridge abutment lapping of the bridge rigid frame adopts a symmetrical weight device form, and can carry out construction after weight allocation after rapid debugging and butt joint of the bridge abutment lapping end. When concrete is poured, the construction method for the bridge abutment lap joint of the rigid frame of the bridge adopts a symmetrical ballast device form, and a functional device with convenient and fast walking can be formed after assembly; when concrete pouring is carried out, the configured ballast vehicle can gradually and stably move backwards along with the increase of the concrete pouring amount, so that the gradual conversion of ballast is realized; the rapid formation of the debugging and butting process of the lap joint end of the rigid frame bridge abutment can be ensured, and the operation requirements of site safety and civilized construction can be met; the required construction technical quality effect under the general condition is easy to achieve.
The method is further characterized in that: the step-by-step pressure-weight conversion refers to a process of gradually pouring concrete to the end, and is also a process of gradually reducing the pressure-weight of the bridge abutment lap joint end to O.
Compared with the prior art, the construction method for bridge abutment lapping of the bridge rigid frame has the advantages that:
1. the weight device can form a functional device with convenient walking after being assembled;
2. when the bridge abutment overlap joint end is poured with concrete, the ballast flat car a and the ballast flat car b gradually and stably move backwards along with the increase of the concrete pouring amount, so that the gradual conversion of ballast is realized;
3. after the overlap joint end of the rigid frame bridge abutment is debugged, the butt joint process of the overlap joint end of the rigid frame bridge abutment can be quickly formed, and the operation requirements of on-site safety and civilized construction can be met; the required construction technical quality effect under the general condition is easy to achieve.
Drawings
FIG. 1 is a schematic structural diagram of a symmetrical rigid frame of a bridge;
FIG. 2 is a construction schematic diagram of bridge abutment lapping of the bridge rigid frame of the invention;
FIG. 3 is a schematic view of a weight position for abutment lapping construction;
FIG. 4 is a schematic view of bridge abutment overlap construction weight;
FIG. 5 is a schematic view of a construction weight position of a closure segment;
FIG. 6 is a schematic view of the construction weight of the closure segment;
FIG. 7 is a schematic diagram of the dismounting position of the symmetrical ballast devices after the construction of the closure segment is finished;
FIG. 8 is a schematic view of an integral rigid frame bridge formed after the construction of the closure segment is finished.
In the drawings are labeled: the method comprises the steps of 1-symmetrical rigid frame form, 2-abutment, 3-rigid frame construction hanging basket, 4-rigid frame closure section, 5-steel-structure abutment overlapping end, 6-ballast flat car temporary rail, 7-railcar stop, 8-ballast flat car, 9-flat car traction device, 10-traction steel wire rope and 11-formed integral rigid frame bridge.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The technical scheme of the construction method for lapping the bridge abutment of the bridge rigid frame comprises the following steps:
(a) preparation: according to the process design requirements, processing and preparation of symmetrical ballast devices, namely a ballast flat car a and a ballast flat car b, and preparation of a temporary track 6, a rail car stop 7, a traction device 9 and a traction steel wire rope 10 of the ballast flat car are carried out;
(b) installation: firstly, according to the symmetrical ballast device form of the construction method for the bridge rigid frame abutment lapping of the corresponding invention, after the hanging basket construction process reaches the position of the closure section, temporary ballast flat car tracks 6 and railcar stops 7 are symmetrically installed on the bridge floor at the upper parts of the two bridge pier positions, the temporary ballast tracks 6 are fixed on the longitudinal position of the bridge floor by adopting foundation bolts, and the railcar stops 7 are installed; installing a combined weight-pressing vehicle 8 comprising a and b, and installing traction devices 9 (traction electric hoists) at two ends of the position shown in figure 2; the steel structure construction hanging basket 3 is connected with a traction steel wire rope 10 in a penetrating and sectional mode (the traction steel wire rope 10 is sleeved on a pulley arranged at the end of the temporary track 6 of the ballast flat car), and a ballast device for bridge steel structure construction is formed;
(c) in the construction process, according to the construction scheme, firstly, the construction of the abutment lapping end of the rigid frame is carried out, and when the ballast flat car a and the ballast flat car b are respectively and synchronously pulled to the abutment lapping end of the rigid frame, namely before the construction of a closure section, the concrete pouring and forming construction of the abutment lapping end is carried out.
After the concrete of the bridge abutment overlap joint end is cast and molded, the ballast flat car a and the ballast flat car b can be respectively pulled to the end of the closure section of the rigid frame, and then the closure section of the rigid frame can be constructed; and finally, after the concrete of the constructed closure section is poured and molded, the ballast flat car a and the ballast flat car b are respectively pulled to the positions of the bridge floor right above the two piers, so that the construction hanging basket and all ballast devices can be dismantled, all construction operations of the rigid frame are completed, and the integral rigid frame bridge is formed.
The construction method for the bridge rigid frame abutment lapping adopts a symmetrical ballast device form, the combined ballast flat car 8 comprises (a) and (b), a ballast flat car temporary track 6, a rail car stop 7, a traction device 9 and a traction steel wire rope 10, and a functional device with convenient walking is formed after assembly.
The construction method for bridge abutment lapping of the bridge rigid frame adopts a symmetrical weight device form, and can carry out construction after weight is configured after the lapping ends of the bridge abutments are quickly debugged and butted. When concrete is poured, the configured ballast vehicle can gradually and stably move backwards along with the increase of the concrete pouring amount, so that the gradual conversion of ballast is realized; the step-by-step pressure-weight conversion refers to a process of gradually pouring concrete to the end, and is also a process of gradually reducing the pressure-weight of the bridge abutment lap joint end to O.
The process flow of the construction method for the bridge rigid frame abutment lapping is briefly described as follows: (a) according to the process design requirements, after processing and preparation of a ballast flat car a and a ballast flat car b → (b) preparation of a ballast flat car temporary rail 6, a rail car stop 7, a traction device 9 and a traction steel wire rope 10 → (c) in a cradle construction process to a closing section position, symmetrically installing the ballast flat car temporary rail 6 and the rail car stop 7 → (e) on the upper bridge floor at two pier positions by referring to a ballast device form → (d) and fixing the temporary rail 6 at the longitudinal position of the bridge floor by adopting an anchor bolt, and installing the rail car stop 7 → (f) and installing a combined ballast flat car a and a ballast flat car b → (g) installing the traction device 9 and an electric hoist at two ends of the position shown in FIG. 2 and inserting the traction steel wire rope 10 through a construction cradle 3 in a sectional connection manner → (i) to form bridge abutment lapping of the closing bridge and traveling of the rigid construction and the closing bridge section construction of the rigid construction and the ballast device (j) for carrying out the rigid construction of the rigid construction, and constructing the closure section of the rigid frame.
The construction method for the bridge rigid frame abutment lapping adopts a symmetrical ballast device form, and a functional device with convenient and fast walking can be formed after assembly; when concrete pouring is carried out, the configured ballast vehicle can gradually and stably move backwards along with the increase of the concrete pouring amount, so that the gradual conversion of ballast is realized; the rapid formation of the debugging and butting process of the lap joint end of the rigid frame bridge abutment can be ensured, and the operation requirements of site safety and civilized construction can be met; the required construction technical quality effect under the general condition is easy to achieve.
The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various changes and modifications can be made without departing from the technical solution, and the technical solution of the changes and modifications should also be considered as falling within the scope of the claims.
Claims (1)
1. A construction method for bridge abutment lapping of a bridge rigid frame is characterized by comprising the following steps:
(a) preparation: processing and preparing a ballast flat car a, a ballast flat car b, a temporary track (6) of the ballast flat car, a track car stop (7), a traction device (9) and a traction steel wire rope (10);
(b) installation: firstly, after a hanging basket construction process reaches a closure section position, symmetrically installing temporary tracks (6) and rail car stops (7) of a ballast flat car on the bridge floor at the upper parts of two pier positions, fixing the temporary tracks (6) on the longitudinal position of the bridge floor by adopting foundation bolts, and fixedly installing the rail car stops (7) at the end of the temporary tracks (6) of the ballast flat car; then, installing a ballast flat car a and a ballast flat car b on the bridge floor right above the two piers, and installing a traction device (9) at the end of a temporary track (6) of the ballast flat car; the steel wire rope (10) is connected in a penetrating and sectional manner through the rigid frame construction hanging basket (3) to form a ballast device for rigid frame construction of the bridge; the ballast device comprises a ballast flat car a, a ballast flat car b, a ballast flat car temporary track (6), a railcar stop (7), a traction device (9) and a traction steel wire rope (10);
(c) in the construction process: constructing the bridge abutment lapping end of the rigid frame, and when the ballast flat car a and the ballast flat car b are respectively and synchronously pulled to the bridge abutment lapping end of the cantilever rigid frame, constructing the bridge abutment lapping end of the rigid frame, namely before constructing a closure section, firstly performing concrete pouring and molding construction on the bridge abutment lapping end;
in the concrete pouring process, the ballast flat car a and the ballast flat car b gradually and stably move backwards along with the increase of the concrete pouring amount, so that the gradual conversion of ballast weight is realized; the step-by-step pressure-weight conversion refers to a process of gradually pouring concrete to the end, and is also a process of gradually reducing the pressure-weight of the bridge abutment lap joint end to 0.
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| CN201810283510.2A CN108487083B (en) | 2018-04-02 | 2018-04-02 | Construction method for bridge abutment lap joint of bridge rigid frame |
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| CN201810283510.2A CN108487083B (en) | 2018-04-02 | 2018-04-02 | Construction method for bridge abutment lap joint of bridge rigid frame |
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| CN108487083A CN108487083A (en) | 2018-09-04 |
| CN108487083B true CN108487083B (en) | 2020-03-31 |
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| CN109629458B (en) * | 2019-01-23 | 2020-11-27 | 腾达建设集团股份有限公司 | System conversion method for bridge cantilever construction |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4192120A (en) * | 1976-12-17 | 1980-03-11 | Entreprises de Travaux Publics et Prives J. Richard Societe Anonyme | Method of constructing reinforced concrete bridges |
| CN105484158A (en) * | 2015-12-02 | 2016-04-13 | 中交路桥建设有限公司 | Asymmetrical casting construction method of side span of rigid frame bridge with extra high piers and long span length |
| CN106948273A (en) * | 2017-05-10 | 2017-07-14 | 重庆交通大学 | Mountain area High-pier and long-span continuous frigid frame bridge T structures closure casting method |
-
2018
- 2018-04-02 CN CN201810283510.2A patent/CN108487083B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4192120A (en) * | 1976-12-17 | 1980-03-11 | Entreprises de Travaux Publics et Prives J. Richard Societe Anonyme | Method of constructing reinforced concrete bridges |
| CN105484158A (en) * | 2015-12-02 | 2016-04-13 | 中交路桥建设有限公司 | Asymmetrical casting construction method of side span of rigid frame bridge with extra high piers and long span length |
| CN106948273A (en) * | 2017-05-10 | 2017-07-14 | 重庆交通大学 | Mountain area High-pier and long-span continuous frigid frame bridge T structures closure casting method |
Non-Patent Citations (1)
| Title |
|---|
| 挂篮在大跨桥合拢中作为配重的施工工艺介绍;高健;《中国水运》;20070630;第"一、引言"部分和第"二、施工工艺"部分 * |
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