CN214116312U - A socket-type longitudinal connection device suitable for segmented cantilever assembled bridges - Google Patents
A socket-type longitudinal connection device suitable for segmented cantilever assembled bridges Download PDFInfo
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- CN214116312U CN214116312U CN202023152469.7U CN202023152469U CN214116312U CN 214116312 U CN214116312 U CN 214116312U CN 202023152469 U CN202023152469 U CN 202023152469U CN 214116312 U CN214116312 U CN 214116312U
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Abstract
本实用新型的适用于节段式悬臂拼装桥梁的承插型纵向连接装置，桥梁的两端地面上固定有桥墩，两端的桥墩的上端水平方向上依次连接有箱梁节段，两端的桥墩的上端固定有用于箱梁节段安装时用的架桥机，架桥机设置于箱梁节段的上端，其特征在于：所述的相邻的箱梁节段的箱顶侧面和箱底侧面之间相互间隔一定的距离均匀的设置有多个水平的承插型纵向连接装置。本实用新型通过设置水平的承插型纵向连接装置，将相邻的箱梁节段有效连接，然后经浇筑混凝土砂浆加固，且通过卡槽设计，有效减少了剪力裂缝的产生，箱梁节段之间的整体性增强，保证桥梁通车安全，避免危险事故的发生。
The utility model is a socket-type longitudinal connecting device suitable for a segmented cantilever assembling bridge. Bridge piers are fixed on the ground at both ends of the bridge. The upper end is fixed with a bridge erection machine used for the installation of the box girder segment, and the bridge erection machine is arranged at the upper end of the box girder segment, and is characterized in that: the side of the box top and the side surface of the bottom of the box girder segment are adjacent to each other. A plurality of horizontal socket-type longitudinal connecting devices are evenly arranged at a certain distance from each other. The utility model effectively connects the adjacent box girder sections by arranging a horizontal socket-type longitudinal connecting device, which is then reinforced by pouring concrete mortar. The integrity between the sections is enhanced to ensure the safety of the bridge opening to traffic and avoid the occurrence of dangerous accidents.
Description
Technical Field
The utility model relates to a bridge's connecting device is assembled to cantilever, more specifically the theory that says so especially relates to a vertical connecting device of socket joint type suitable for bridge is assembled to festival segmentation cantilever.
Background
With the rapid development of bridge structure forms, the sectional cantilever assembling construction process is more and more widely applied to bridge construction. The sectional cantilever assembling construction means that the bridge components are poured and maintained to standard strength in a prefabricated field, and then transported to a designed bridge site to complete combined assembling. Compared with the traditional construction of bracket cast-in-place and hanging basket cantilever, the construction period can be effectively shortened, the influence on the surrounding environment is reduced, and the construction method has good economic benefit.
However, three forms of seam treatment are commonly used for each segment: the three conventional joint processing modes can not enable each section to have reliable connectivity, and for vertical shearing force generated under the load action of the bridge, the vertical shearing force is mainly resisted by a shear key, the effect is poor, and shear cracks are easy to generate. In order to solve the problems, the invention is necessary to provide a socket type longitudinal connecting device for a prestressed reinforced concrete bridge assembled by sectional cantilevers, so that the overall stability of a box girder assembled by the cantilevers is improved, and the safety of the whole service life cycle of the bridge operation is ensured.
Disclosure of Invention
The utility model discloses an overcome above-mentioned technical problem's shortcoming, provide a socket joint type longitudinal tie device suitable for bridge is assembled to festival segmentation cantilever.
The utility model discloses a socket joint type longitudinal tie device suitable for bridge is assembled to festival segmentation cantilever, the both ends of bridge subaerial be fixed with the pier, have connected gradually the case girder segment section on the upper end horizontal direction of the pier at both ends, the upper end of the pier at both ends is fixed with the bridge girder erection machine that uses when being used for the installation of case girder segment section, and bridge girder erection machine sets up in the upper end of case girder segment section, its characterized in that: and a plurality of horizontal socket-type longitudinal connecting devices are uniformly arranged between the box top side surface and the box bottom side surface of the adjacent box girder segments at certain intervals.
The socket type longitudinal connecting device comprises a socket type connecting rod, a socket type fixing clamp and a socket type fixing bolt, wherein the socket type connecting rod is connected with the socket type fixing clamp through the socket type fixing bolt; the socket type connecting rod is a cuboid-shaped rigid block, a first through hole is formed in the socket type connecting rod at one end, the front half section of the socket type connecting rod in the direction opposite to the first through hole is horizontally fixed on the right side surface of the box girder segment, and the rear half section of the socket type connecting rod extends out of the box girder segment; a draw-in groove that link up is provided with at the inboard edge of the left top surface edge of the case roof beam section and the case room bottom surface that is used for fixed socket joint formula mounting fixture, and socket joint formula mounting fixture all sets up in the draw-in groove.
The socket type fixing clamp is a cuboid-shaped rigid block with the thickness larger than that of the socket type connecting rod, a groove for clamping the socket type connecting rod is formed in the middle of the socket type fixing clamp on one side, clamping plates are arranged on the socket type fixing clamps on the upper end and the lower end of the groove, a second through hole with the same diameter as the first through hole is formed in each clamping plate, and the length of the rear half section of the socket type connecting rod extending out of the box girder section is smaller than that of the groove; the front half section of the socket type fixing clamp opposite to the second through hole is horizontally fixed in the box girder segment on the right side surface of the clamping groove, the rear half section of the socket type fixing clamp is suspended in the clamping groove, and the length of the socket type fixing clamp suspended in the clamping groove is smaller than the depth of the clamping groove.
The utility model discloses a socket joint type longitudinal tie device suitable for bridge is assembled to festival segmentation cantilever, the box girder segment section of draw-in groove both sides is reserved with the concrete baffle of certain thickness.
The utility model discloses a socket joint type longitudinal tie device suitable for bridge is assembled to festival segmentation cantilever, the tip of the socket joint formula connecting rod of first through-hole end sets up to circular-arcly.
The utility model discloses a socket joint type longitudinal tie device suitable for bridge is assembled to festival segmentation cantilever, the tip of the splint of second through-hole end sets up to circular-arcly.
The utility model discloses a vertical connecting device of socket joint type suitable for bridge is assembled to festival segmentation cantilever, the socket joint formula connecting rod is fixed in on the inside steel reinforcement cage of case roof beam festival section with first half section level of first through-hole opposite direction.
The utility model discloses a vertical connecting device of socket joint type suitable for bridge is assembled to festival segmentation cantilever, socket joint formula mounting fixture is fixed in on the inside steel reinforcement cage of case roof beam segment section with the first half section level in the opposite direction of second through-hole.
The utility model discloses a vertical connecting device of socket joint type suitable for bridge is assembled to festival segmentation cantilever, the back is connected with socket joint formula mounting fixture to socket joint formula connecting rod, builds full concrete mortar in the draw-in groove.
The utility model has the advantages that: the utility model discloses a socket joint type vertical connecting device suitable for bridge is assembled to festival segmentation cantilever, through setting up horizontally socket joint type vertical connecting device, effectively connect adjacent case roof beam segment section, then consolidate through concreting mortar, and through the draw-in groove design, effectively reduced shear force fissured production, wholeness reinforcing between the case roof beam segment section guarantees bridge traffic safety, avoids the emergence of dangerous accident. The utility model discloses the construction is simple, and material resources of using manpower sparingly, effectual the cost is reduced improves work efficiency easy to assemble.
Drawings
Fig. 1 is a schematic view of the installation structure of the socket type longitudinal connecting device suitable for the sectional cantilever assembling bridge of the present invention;
fig. 2 is a schematic structural view of a box girder segment according to the present invention;
fig. 3 is a schematic structural view of the socket type longitudinal connecting device of the present invention;
fig. 4 is a schematic structural view of the socket type connecting rod of the present invention;
FIG. 5 is a schematic structural view of the socket type fixing clamp of the present invention;
fig. 6 is a schematic view of the connection structure of the box girder segments of the present invention.
In the figure: 1 box girder segment section, 2 socket joint formula connecting rods, 3 socket joint formula fixing bolt, 4 socket joint formula mounting fixture, 5 socket joint type vertical connecting device, 6 draw-in grooves, 7 bridge girder erection machines, 8 piers, 9 hoist and mount ropes, 10 first through-holes, 11 splint, 12 second through-holes, 13 recesses.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings and examples.
As shown in fig. 1-6, the utility model discloses a socket joint type longitudinal tie device's overall structure sketch map suitable for bridge is assembled to festival segmentation cantilever, the socket joint type longitudinal tie device of bridge is assembled to shown festival segmentation cantilever that is applicable to, the both ends of bridge subaerial be fixed with pier 8, box girder segment 1 has connected gradually on the upper end horizontal direction of pier 8 at both ends, the upper end of pier 8 at both ends is fixed with the bridge girder erection machine 7 that uses when being used for box girder segment 1 to install, bridge girder erection machine 7 sets up in box girder segment 1's upper end, the even socket joint type longitudinal tie device 5 that is provided with a plurality of levels of certain distance of mutual interval between the roof side of adjacent box girder segment 1 and the bottom of the case side.
The socket type longitudinal connecting device 5 comprises a socket type connecting rod 2, a socket type fixing clamp 4 and a socket type fixing bolt 3, wherein the socket type connecting rod 2 is connected with the socket type fixing clamp 4 through the socket type fixing bolt 3. Socket joint formula connecting rod 2 sets up to the rigid piece of cuboid form, has seted up first through-hole 10 on the socket joint formula connecting rod 2 of one end wherein, and the first half section level of socket joint formula connecting rod 2 and first through-hole 10 opposite direction is fixed in the right flank of box girder segment 1, and the latter half section of socket joint formula connecting rod 2 stretches out outside box girder segment 1. A draw-in groove 6 that link up is provided with at the inboard edge of the left top surface edge of box girder segment 1 and the bottom surface of the case room for fixing socket joint formula mounting fixture 4, and socket joint formula mounting fixture 4 all sets up in draw-in groove 6.
Socket joint formula mounting fixture 4 sets up to the rigid piece of the cuboid form that thickness is greater than socket joint formula connecting rod 2, and wherein the middle part of the socket joint formula mounting fixture 4 of one side is provided with the recess 13 that is used for the card to go into socket joint formula connecting rod 2, is provided with splint 11 on the socket joint formula mounting fixture 4 at both ends about recess 13, has seted up the second through-hole 12 that equals with first through-hole 10 aperture size on splint 11, and the latter half section of socket joint formula connecting rod 2 stretches out the length that case roof beam section 1 is outer to be less than the length of recess 13. The socket type connecting rod 2 and the socket type fixing clamp 4 are connected through a socket type fixing bolt 3 which passes through the first through hole 10 and the second through hole 12.
In the first half festival level of socket joint formula mounting fixture 4 and the 12 opposite directions in second through-hole was fixed in the case roof beam segment 1 of the right flank of draw-in groove 6, latter half festival of socket joint formula mounting fixture 4 was unsettled in draw-in groove 6, and the unsettled length in draw-in groove 6 of socket joint formula mounting fixture 4 was less than the degree of depth of draw-in groove 6 for when case roof beam segment 1 connects, closely laminate between the adjacent case roof beam segment 1, the wholeness and the bearing strength of assurance bridge.
A concrete baffle with a certain thickness is reserved on the box girder segments 1 on two sides of the clamping groove 6, and when the box girder segments 1 are installed and connected, concrete flows out when the concrete is poured into the clamping groove 6.
The end part of the socket type connecting rod 2 at the end of the first through hole 10 is arc-shaped, and the end part of the clamping plate 11 at the end of the second through hole 12 is arc-shaped, so that the socket type connecting rod 2 and the socket type fixing clamp 4 are inserted and installed when the box girder segment 1 is installed and connected conveniently.
The socket type connecting rod 2 is horizontally welded to the reinforcement cage in the box girder segment 1 in the first half section opposite to the first through hole 10, and the socket type fixing clamp 4 is horizontally welded to the reinforcement cage in the box girder segment 1 in the first half section opposite to the second through hole 12. And after the welding is finished, pouring concrete into the prefabricated template of the box girder segment 1.
When the adjacent box girder segments 1 are connected, the socket joint type connecting rods 2 are connected with the socket joint type fixing clamps 4, and concrete mortar is fully filled in the clamping grooves 6.
The utility model discloses an in the bearing installation process of the vertical connecting device of socket joint type suitable for bridge is assembled to festival segmentation cantilever, concrete implementation operating procedure as follows:
(a) and constructing the bridge pier 8. Binding 8 reinforcing steel bars of the pier according to the design drawing, pouring concrete, curing the concrete to a specified age, and performing the next construction.
(b) And (7) mounting a bridge crane. The bridge girder erection machine 7 is installed between two adjacent piers 8, and the installation firmness of the bridge girder erection machine 7 and the reliability of the hoisting ropes 9 are checked.
(c) A spigot-and-socket type longitudinal connecting device 5 is manufactured. The material of the socket type longitudinal connecting device 5 is steel. The socket joint type connecting rod 2 is composed of a cuboid steel block and a semicircular cake corresponding to the cuboid steel block, and one end of the circular arc of the socket joint type connecting rod 2 is punched. Cut a cuboid steel block through the cutting machine, guarantee that the cutaway portion thickness is greater than the thickness of socket joint formula connecting rod 2 during the cutting to socket joint formula connecting rod 2's accurate butt joint, and stretch out the splint 11 of two cuboid shapes after the cutting, the tip cutting of splint 11 is arc, makes socket joint formula mounting fixture 4 form wholly, and at last, punch on two cuboid splint 11 that stretch out, it is corresponding to punch with socket joint formula connecting rod 2 with the position to punch the size of punching, so that the later stage when assembling socket joint formula fixing bolt 3's insertion.
(d) And (3) assembling the prestressed reinforced concrete box girder segment 1 by the prefabricated cantilever. And (4) binding reinforcing steel bars in a precast beam factory according to the requirements of construction drawings. Welding the manufactured socket joint type connecting rod 2 at one end of the box girder segment 1 to the outer edge of the steel reinforcement cage, and exposing half of the socket joint type connecting rod 2 outside the whole box girder segment 1. The socket type connecting rod 2 is always in a horizontal state in the welding process; and a socket type fixing clamp 4 is welded at the outer edge of the reinforcement cage at the other end surface of the box girder segment 1, half of the socket type fixing clamp 4 is exposed out of the whole box girder segment 1, and the socket type fixing clamp 4 is kept in a horizontal state in the welding process. The top surface edge of the welding end face of the socket type fixing clamp 4 of the box girder segment 1 and the inner side edge of the bottom surface of the box chamber are provided with socket type longitudinal connecting devices 5 which are communicated with the through clamping grooves 6, concrete with certain thickness is reserved on two sides of each through clamping groove 6, mortar pouring is not required to support an external formwork, the longitudinal length of each through groove is required to ensure that the socket type longitudinal connecting devices 5 can be poured in the clamping grooves, and the socket type longitudinal connecting devices 5 do not touch the side walls of the clamping grooves. And finally, erecting the template, pouring concrete and curing to a standard age.
(e) And (5) transporting the prestressed reinforced concrete box girder segment 1 assembled by the cantilever. And after the concrete strength meets the transportation requirement, removing the template, transporting the box girder segment 1 carrying the socket type longitudinal connecting device 5 to a construction site, and protecting the integrity of the socket type longitudinal connecting device 5 in the transportation process. The box girder segments 1 are prepared in place in the order of assembly.
(f) Assembling the prestressed reinforced concrete box girder segment 1 by cantilever assembly. And hoisting the box girder segments 1 to a preset position in sequence by using a bridge girder erection machine 7, and assembling the box girder segments segment by segment. During assembly, the socket type longitudinal connecting device 5 of the previous section of box girder is accurately placed into the clamping groove 6 of the next section, and the socket type longitudinal connecting device 5 on the top surface of the box girder section 1 and on the inner side of the bottom surface of the box girder just corresponds to the clamping groove 6.
(g) And (5) pouring mortar. After two adjacent box girder segments are assembled, the clamping grooves are reserved for the socket joint type longitudinal connecting devices to carry out mortar filling, the socket joint type longitudinal connecting devices are ensured to be filled with mortar, and the grouting process needs to pay attention to compactness of grouting liquid and carry out maintenance.
(h) And (4) prestress tension. And after the box girder segments 1 are assembled section by section and the construction strength is reached, the external prestressed steel bars are installed and tensioned, symmetrically tensioned and tensioned in stages.
(i) And (5) removing the bridge girder erection machine 7. After the reinforcing steel bars are tensioned, the whole span box girder bridge is maintained to reach the design load, and then the bridge girder erection machine 7 is dismantled. When the device is disassembled, the device is disassembled from two ends to the middle one by one.
And cleaning the site and carrying out the next construction procedure.
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023152469.7U CN214116312U (en) | 2020-12-24 | 2020-12-24 | A socket-type longitudinal connection device suitable for segmented cantilever assembled bridges |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023152469.7U CN214116312U (en) | 2020-12-24 | 2020-12-24 | A socket-type longitudinal connection device suitable for segmented cantilever assembled bridges |
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| Publication Number | Publication Date |
|---|---|
| CN214116312U true CN214116312U (en) | 2021-09-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023152469.7U Expired - Fee Related CN214116312U (en) | 2020-12-24 | 2020-12-24 | A socket-type longitudinal connection device suitable for segmented cantilever assembled bridges |
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| Country | Link |
|---|---|
| CN (1) | CN214116312U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114737478A (en) * | 2022-03-02 | 2022-07-12 | 中铁广州工程局集团有限公司 | Device for adhering glue to assembly joint of sectional beam and painting method |
| CN116537038A (en) * | 2023-06-02 | 2023-08-04 | 重庆交通大学 | Assembled box girder embedded with steel tube concrete stiff skeleton arch |
-
2020
- 2020-12-24 CN CN202023152469.7U patent/CN214116312U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114737478A (en) * | 2022-03-02 | 2022-07-12 | 中铁广州工程局集团有限公司 | Device for adhering glue to assembly joint of sectional beam and painting method |
| CN114737478B (en) * | 2022-03-02 | 2024-03-01 | 中铁广州工程局集团有限公司 | Segment beam assembly joint bonding glue device and brushing method |
| CN116537038A (en) * | 2023-06-02 | 2023-08-04 | 重庆交通大学 | Assembled box girder embedded with steel tube concrete stiff skeleton arch |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210903 |
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| CF01 | Termination of patent right due to non-payment of annual fee |