CN214656383U - Line is alternately low headroom and is pieced together wide cast-in-place case roof beam support - Google Patents
Line is alternately low headroom and is pieced together wide cast-in-place case roof beam support Download PDFInfo
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- CN214656383U CN214656383U CN202023008112.1U CN202023008112U CN214656383U CN 214656383 U CN214656383 U CN 214656383U CN 202023008112 U CN202023008112 U CN 202023008112U CN 214656383 U CN214656383 U CN 214656383U
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Abstract
The utility model provides a wide cast-in-place case beam support is pieced together to route alternately low headroom, including cast-in-place stage support, the roof beam body that carries out the roof beam body and pour the roof beam stage support that falls after accomplishing, cast-in-place stage support and the roof beam stage support sharing foundation support that falls, foundation support includes concrete foundation, pier stud, steel-pipe column, abutment, altitude mixture control spare, cast-in-place stage support is still including setting up at the spandrel girder of altitude mixture control spare top, along vertical bridge to the bailey roof beam that sets up in the spandrel girder top, along horizontal bridge to evenly setting up the distribution roof beam in bailey roof beam top, set up the template in distribution roof beam top, fall roof beam stage support and still include the regulating block, set up the jack in the roof beam body bottom, the regulating block includes steel-pipe column regulating block, pier stud regulating block, abutment regulating block. The utility model provides a route is alternately pieced together wide bridge and is leaded to piecing together wide bridge because of former bridge elevation and set up the problem that the support bottom headroom is not enough, on the basis that does not change former design, guarantees that the below vehicle is current.
Description
Technical Field
The utility model relates to a wide construction technical field is pieced together to the bridge, concretely relates to line alternately hangs down headroom and pieces together wide cast-in-place case beam support.
Background
Along with the rapid development of economy, more highway traffic tasks in China are increasingly busy, the traffic volume is increased very rapidly, the service level of a highway is greatly reduced, important road sections in part of China are in congestion normalization, the development trend of bridge widening is increasingly urgent, in the cast-in-place construction of a widening bridge which spans a road and has small clearance under the bridge, the road cannot be sealed off in the construction process, and the normal operation of the road cannot be influenced, so that the convenience and the safety of road driving are not influenced.
Disclosure of Invention
The utility model provides a wide cast-in-place case roof beam support is pieced together to route alternately low headroom when guaranteeing construction feasibility and safety, has effectively solved the problem that keeps current difficulty to the cast-in-place case roof beam of route alternately low headroom in the work progress.
The technical scheme of the utility model is that: a route crossing low clearance width splicing cast-in-place box girder support comprises a cast-in-place stage support for casting a girder body and a girder falling stage support after the girder body is cast, the cast-in-place stage support and the girder falling stage support share a foundation support, the foundation support comprises a concrete foundation, pier columns, steel pipe columns, abutments and height adjusting pieces, the pier columns are uniformly arranged along a longitudinal bridge direction, the abutments are arranged above the pier columns on the outermost side, the steel pipe columns are arranged on two sides of the middle pier column and the inner sides of the pier columns on the two sides, the concrete foundation is arranged at the bottom of the steel pipe columns, the height adjusting pieces are arranged above the steel pipe columns, the cast-in-place stage support further comprises a bearing beam arranged above the height adjusting pieces, a Bailey beam arranged above the bearing beam along the longitudinal bridge direction, a distributing beam uniformly arranged above the Bailey beam along the transverse bridge direction, and a template arranged above the distributing beam, the support at the beam falling stage further comprises an adjusting block and a jack arranged at the bottom of the beam body, wherein the adjusting block comprises a steel pipe column adjusting block arranged above the height adjusting piece, a pier column adjusting block arranged on the pier column and an abutment adjusting block arranged on the abutment.
Preferably, the template consists of square wood and bamboo plywood.
Preferably, the number of the steel pipe columns arranged on the same side is three, the two steel pipe columns on the outer side and the pier column are on the same axis, and the steel pipe column in the middle is located at the center of the beam body.
Preferably, the bottom of the beam body is provided with a prefabricated flange, the prefabricated flange is provided with a plurality of bolt holes, and fixing bolts penetrate through the bolt holes to fix the jack at the bottom of the beam body.
Preferably, the pier stud arranged in the middle is provided with an embedded steel plate, and the steel pipe column close to the pier stud is connected with the embedded steel plate to form a stable structure.
Preferably, a transverse connecting system is arranged between the adjacent steel pipe columns and consists of a cross rod and an oblique rod.
Preferably, the jack is further connected with an oil pump and a control system, and the control system controls all the jacks.
Preferably, the abutment and the pier stud are provided with a cushion stone.
Preferably, the distance between a corresponding jack above the steel pipe column on one side of the pier column and the steel pipe column adjusting block is less than 1 stroke, and the distance between the corresponding jack on the other side of the pier column and the steel pipe column adjusting block is 2 strokes.
The concrete working process of the utility model comprises a beam body cast-in-place stage and a beam falling stage;
the beam cast-in-place stage comprises:
1) the construction method comprises the following steps of adopting an unmanned aerial vehicle and a GIS spatial data technology to carry out data acquisition and analysis on a pavement, a beam body and a bridge floor of a construction ground floor, determining the lowest building height of a cast-in-place beam body, ensuring that the bridge clearance in the cast-in-place construction process of the beam body meets the traffic safety requirement, calculating the adjusted support height, erecting a foundation support according to the calculated support height and a design structure, wherein the foundation support comprises a concrete foundation, a pier stud, a steel pipe column, a bridge abutment and a height adjusting part, and then sequentially erecting a bearing beam, a Bailey beam, a distribution beam and a template to form a complete support and template structure;
2) pre-pressing a support, binding steel bars of a beam body, in the process, aiming at embedding steel plates at corresponding positions at the bottom of the beam body for hanging and installing a jack, pouring, maintaining, tensioning, grouting and other constructions of the beam body after the steel bars are bound, and performing the next stage after the strength of the beam body reaches the design strength;
the beam falling stage comprises:
1) respectively placing an abutment adjusting block, a pier column adjusting block and a steel pipe column adjusting block on an abutment, a pier column and a steel pipe column, arranging a prefabricated flange at a corresponding position of the bottom of a beam body, using a fixing bolt to suspend a jack at the bottom of the beam body, arranging a jack oil pump beside the pier column, and simultaneously jacking the jacks above the abutment and the pier column until the beam body is completely stressed on the abutment and the pier column so as to ensure that the bottom of the beam body is separated from a template;
2) sequentially dismantling support structures such as a template, a distribution beam, a Bailey beam, a bearing beam and the like from top to bottom by using a truck crane;
3) the method comprises the following steps that steel pipe column adjusting blocks with equal diameters are additionally arranged on the steel pipe column adjacent to the pier column, jacks are simultaneously arranged at the bottom of the corresponding beam body and adjusted to the maximum stroke, the distance which is smaller than the stroke of the bridge abutment and the jack corresponding to the pier column when the jacks fall for the first time is reserved between the jack on one side of the steel pipe column and the steel pipe column adjusting block, the stroke distance of the jacks on the other side of the steel pipe column and the steel pipe column adjusting block when the jacks fall for two times is reserved, the jacks on the right steel pipe column can be tightly attached to the steel pipe column adjusting block after the steel pipe column falls for the first time, the reserved distance of each jack is ensured to be consistent, and the jacks can be simultaneously stressed and are stressed in the same size;
4) the method comprises the steps that a bridge abutment and a pier column jack fall onto a steel pipe column jack from a beam body by using a synchronous control system, the stress and the stroke of the bridge abutment and the pier column jack are detected in the falling process, the fitting condition of the jack with a pier column adjusting block and a bridge abutment adjusting block is checked, the condition that the jack falls down from the bridge abutment and the pier column jack and the steel pipe column adjusting block are not emptied before the jack of one side steel pipe column completely falls onto the steel pipe column adjusting block is guaranteed, meanwhile, the stress of the right steel pipe column jack is also detected, the stress increase of the steel pipe column jack is uniform and consistent, when the steel pipe column jack completely falls onto the steel pipe column adjusting block, the stress of the bridge abutment and the pier column jack is zero, and after the bridge abutment adjusting block and the pier column adjusting block are emptied, the jack and the pier column adjusting block above the pier column are dismantled;
5) synchronously dropping a steel pipe column jack on one side to a steel pipe column jack on the other side, wherein the detection method is the same as the above, removing a section of the steel pipe column adjusting block on one side, dropping the jack on the other side to drop the jack on one side on the steel pipe column adjusting block, and performing the cyclic construction in such a way, when the removal of the abutment adjusting block is finished, placing the jack with a small stroke on the pad stone to continue dropping the beam, and when the beam is dropped for the last time, removing the abutment jack, wherein the distance between the bottom of the beam body and the support is less than one jack stroke;
6) the beam is dropped for the last time, the beam body is supported on the steel pipe column jack, the steel pipe column jack is dropped until the bottom of the beam body is completely dropped on the support, the jack on the steel pipe column is separated from the steel pipe column adjusting block, and the beam body is supported by the abutment and the pier column and is converted into a bridge stress state;
7) and (5) dismantling the jack and the steel pipe column at the bottom of the beam body to finish the beam falling construction.
The utility model has the advantages that: the utility model discloses a high-order roof beam method construction route of falling alternately hangs down the cast-in-place wide case roof beam of piecing together of headroom can effectively guarantee the normal traffic of road vehicle below, reduces the influence to highway traffic, and roof beam body cast-in-place support foundation support is reuse in the roof beam stage of falling, as the support post of roof beam body landing jack, has reduced the steel quantity, has reduced the encroachment to the road below simultaneously, further reduces the influence to the road traffic of being handed over; adopt the jack to hang in the roof beam body bottom simultaneously, the regulating block adopts methods such as same diameter steel-pipe column utilizes ring flange bolted connection had both guaranteed the fail safe nature in the work progress, has accelerated the speed of construction again, the utility model discloses effectively solved the route alternately and pieced together the wide bridge and lead to piecing together the wide bridge because of former bridge elevation and set up the problem that the clearance is not enough at the bottom of the support, on the basis that does not change former design, guaranteed the current of below vehicle.
Drawings
Fig. 1 is a schematic structural view of a line-crossing low-clearance widening cast-in-place box girder support of the utility model;
fig. 2 is a schematic view of a steel pipe column at a cast-in-place stage of the line-crossing low-clearance width-splicing cast-in-place box girder bracket of the utility model;
FIG. 3 is a schematic view of a steel pipe column at a beam falling stage of the line crossing low clearance width-splicing cast-in-place box girder support of the utility model;
fig. 4 is a structural side view of the steel pipe column at the beam falling stage of the line crossing low clearance width-splicing cast-in-place box beam support of the utility model;
fig. 5 is a jack mounting schematic view of the line-crossing low-clearance widening cast-in-place box girder support of the utility model;
wherein: 1. the concrete foundation comprises a concrete foundation body, 2, a steel pipe column, 3, a height adjusting piece, 4, a bearing beam, 5, a Bailey beam, 6, a distribution beam, 7, a formwork, 8, a pier column, 9, a pre-buried steel plate, 10, an abutment, 11, a jack, 12, a prefabricated flange, 13, an adjusting block, 14, a beam body, 15, a transverse connecting system, 16 and a fixing bolt.
Detailed Description
The present invention will now be described more fully hereinafter with reference to the accompanying drawings, in which a person skilled in the art can, without any creative effort, fully implement the present invention.
The utility model discloses a concrete implementation mode is: as shown in fig. 1-5, a route-crossed low-clearance width-spliced cast-in-place box girder support comprises a cast-in-place stage support for casting a girder body 14, a girder-falling stage support for casting the girder body 14, wherein the cast-in-place stage support and the girder-falling stage support share a foundation support, the foundation support comprises a concrete foundation 1, pier columns 8, steel pipe columns 2, abutment platforms 10 and height adjusting pieces 3, the pier columns 8 are uniformly arranged along a longitudinal bridge direction, the abutment platforms 10 are arranged above the pier columns 8 on the outermost sides, the steel pipe columns 2 are arranged at two sides of the middle pier column 8 and at the inner sides of the pier columns 8 at two sides, the concrete foundation 1 is arranged at the bottom of the steel pipe column 1 to improve stability, the height adjusting pieces 3 are arranged above the steel pipe column 1, the cast-in-place stage support further comprises a bearing girder 4 arranged above the height adjusting pieces 3, a beret beam 5 arranged above the bearing girder 4 along the longitudinal bridge direction, Evenly set up in the distribution roof beam 6 of bailey roof beam 5 top, set up the template 7 in distribution roof beam 6 top along the horizontal bridge, roof beam stage support still includes regulating block 13, sets up jack 11 in roof beam body 14 bottom falling, regulating block 13 is including setting up the steel-pipe column regulating block in height-adjusting part 3 top, setting up pier stud regulating block on pier stud 8, setting up the abutment regulating block on abutment 10.
Preferably, the formwork 7 is composed of square wood and bamboo plywood.
Preferably, there are three steel pipe columns 1 arranged on the same side, two steel pipe columns 1 on the outer side and the pier column 8 are on the same axis, and the steel pipe column 1 in the middle is located at the center of the beam 14.
Preferably, the bottom of the beam body 14 is provided with a prefabricated flange 12, the prefabricated flange 12 is provided with a plurality of bolt holes, and the bolt holes are penetrated with fixing bolts 16 to fix the jack 11 at the bottom of the beam body 14.
Preferably, the pier stud 8 arranged in the middle is provided with an embedded steel plate 9, and the steel pipe column 1 close to the pier stud 8 is connected with the embedded steel plate 9 to form a stable structure.
Preferably, a transverse connecting system 15 is arranged between the adjacent steel pipe columns 9, and the transverse connecting system 15 consists of a cross rod and an oblique rod.
Preferably, the jacks 11 are further connected with an oil pump and a control system, and the control system controls all the jacks to ensure that all the jacks 11 act synchronously and stress is uniform.
Preferably, the abutment 10 and the pier stud 8 are provided with a pad stone and a support beam body 14.
Preferably, the distance between the corresponding jack 11 above the steel pipe column 3 on one side of the pier column 8 and the steel pipe column adjusting block is less than 1 stroke, and the distance between the jack 11 on the other side and the steel pipe column adjusting block is 2 strokes.
The concrete working process of the utility model comprises a beam body cast-in-place stage and a beam falling stage;
the beam cast-in-place stage comprises:
1) the construction method comprises the steps of adopting an unmanned aerial vehicle and a GIS spatial data technology to carry out data acquisition and analysis on a road surface of a construction ground layer, a beam body 14 and a bridge floor, determining the lowest building height of a cast-in-place beam body 14, ensuring that the underbridge clearance in the cast-in-place construction process of the beam body 14 meets the traffic safety requirement, calculating the height of an adjusted support, and setting up a foundation support according to the calculated support height and a design structure, wherein the foundation support comprises a concrete foundation 1, a pier column 8, a steel pipe column 2, a bridge abutment 10 and a height adjusting part 3, and then sequentially setting up a bearing beam 4, a Bailey beam 5, a distribution beam 6 and a template 7 (comprising a bamboo plywood and a square timber) to form a complete support and template structure;
2) pre-pressing a support, binding steel bars of a beam body, in the process, aiming at embedding steel plates at corresponding positions at the bottom of the beam body for hanging and installing a jack, pouring, maintaining, tensioning, grouting and other constructions of the beam body after the steel bars are bound, and performing the next stage after the strength of the beam body reaches the design strength;
the beam falling stage comprises:
1) the bridge abutment adjusting block, the pier column adjusting block and the steel pipe column adjusting block are respectively placed on the bridge abutment 10, the pier column 8 and the steel pipe column 3, a prefabricated flange 12 is arranged at a corresponding position of the bottom of a beam body 14, a jack 11 is hung at the bottom of the beam body 14 through a fixing bolt 16, a jack oil pump is arranged beside the pier column 8, one jack oil pump is arranged at a single pier position due to road-crossing construction, 6 oil pumps are arranged in total, all the oil pumps and the jacks are controlled by a set of control system, the lifting consistency of the jack 11 is ensured, meanwhile, the jacks 11 above the bridge abutment 10 and the pier column 8 are completely stressed on the bridge abutment 10 and the pier column 8, and the bottom of the beam body 14 is enabled to be disengaged from a template 7;
2) sequentially dismantling the supporting structures of the template 7, the distribution beam 6, the Bailey beam 5 and the bearing beam 4 from top to bottom by using a truck crane;
3) the method is characterized in that steel pipe column adjusting blocks with equal diameters are additionally arranged on the steel pipe column 3 adjacent to the pier column 8, jacks 11 are simultaneously arranged at the bottoms of the corresponding beam bodies 14, the jacks 11 are adjusted to the maximum stroke, the distance which is smaller than the stroke of the bridge abutment 10 and the jacks 11 corresponding to the pier column 8 when the jacks 11 on the right (left) side of the steel pipe column 3 fall for the first time is reserved between the jacks 11 on the right (left) side of the steel pipe column 3 and the steel pipe column adjusting blocks, the stroke distance of the jacks 11 on the left (right) side of the steel pipe column 3 and the steel pipe column adjusting blocks when the steel pipe column falls for two times is reserved, the jacks 11 on the right (left) side of the steel pipe column 3 can be tightly attached to the steel pipe column adjusting blocks after the first beam falling, the distance of each jack 11 is ensured to be consistent, and the jacks 11 can be simultaneously stressed and are consistent in stress size;
4) the synchronous control system is utilized to fall the bridge abutment 10 and the jack 11 of the pier column 8 to the beam body 14 to fall on the jack 11 of the steel pipe column 3, the stress and the stroke of the bridge abutment 10 and the jack 11 of the pier column 8 are detected in the falling process, the joint condition of the jack 11 with the pier column adjusting block and the bridge abutment adjusting block is checked, the jack 11 of the bridge abutment 10 and the pier column 8 and the jack 11 of the steel pipe column regulating block on the right (left) side of the steel pipe column 3 are ensured not to be empty before completely falling on the steel pipe column regulating block, simultaneously, the stress of the jack 11 of the right (left) side steel pipe column 3 is also detected, the stress increase of the jack 11 of the right (left) side steel pipe column 3 is ensured to be uniform, and after the jack 11 of the right (left) side steel pipe column 3 is completely fallen onto the steel pipe column adjusting block, the stress of the bridge abutment 10 and the jack 11 of the pier column 8 is zero and is disengaged from the bridge abutment adjusting block and the pier column adjusting block, the jack 11 above the pier column 8 and the pier column adjusting block are removed;
5) synchronously dropping a jack 11 of the steel pipe column 3 on the right (left) side to a jack 11 of the steel pipe column 3 on the left (right) side on a steel pipe column adjusting block, wherein the detection method is consistent with the above method, then removing the steel pipe column adjusting block on the right (left) side, dropping the left (right) side jack 11 to drop the right (left) side jack 11 on the steel pipe column adjusting block, and performing the cycle construction in such a way, when the bridge abutment adjusting block is completely removed, replacing a jack with a small stroke, placing the jack on a cushion stone, and continuing to drop the beam until the beam is dropped for the last time, removing the jack 11 above the bridge abutment 10, wherein the distance between the bottom of a beam body 14 and a support is less than the stroke of one jack;
6) the beam is dropped for the last time, the beam body 14 is supported on the jack 11 of the steel pipe column 3, the jack 11 of the steel pipe column 3 is dropped until the bottom of the beam body 14 is completely dropped on the support, the jack 11 above the steel pipe column 3 is separated from the steel pipe column adjusting block, and the beam body 14 is supported by the abutment 10 and the pier column 8 and is converted into a bridge stress state;
7) and (5) dismantling the jack 11 and the steel pipe column 3 at the bottom of the beam body 14 to finish the beam falling construction.
The utility model discloses raise the elevation when pouring the roof beam body, effectively solved the route and alternately pieced together the wide bridge and lead to piecing together the wide bridge because of former bridge elevation and set up the problem that the support bottom headroom is not enough, on the basis that does not change former design, guaranteed the current of below vehicle.
The utility model discloses the construction method of roof beam falls in circulation places the regulating block of steel-pipe column with the diameter under the jack and has realized the hierarchical whereabouts of roof beam, compares and has stronger security, stability in ordinary pad steel sheet etc. and the jack adopts synchronous control system, monitors the speed and the atress that the jack falls, monitors the gradient of the roof beam body simultaneously, guarantees the roof beam body in the stability of whereabouts in-process, even, do not come to nothing.
The utility model discloses a roof beam body bottom sets up prefabricated flange, and the jack adopts fixing bolt to be connected with prefabricated flange, makes the jack can hang in roof beam body bottom, and such structure need not take off the jack when demolising the regulating block under the jack bottom, has reduced the dismantlement step, helps the workman in the operation in comparatively narrow and small space for construction speed.
The utility model discloses set up the jack and dismantle cast-in-place bailey roof beam etc. on abutment and pier stud, recycle the former steel-pipe column when cast-in-place as supporting, two rows of steel-pipe columns form the circulation and fall the roof beam system, do not add in addition and establish the steel-pipe column, have reduced to being taken up by the encroaching on of traffic route, have reduced the current influence to being handed over the road.
The utility model discloses an effectual solution of high-order roof beam method of falling the route alternately low headroom pieces together the current difficult problem of below vehicle when wide bridge construction, both satisfied the unanimity of piecing together wide bridge and former bridge elevation in the design, effectual reduction again to the influence of being handed on sweetgum fruit is handed in.
While the preferred embodiments of the present invention have been described, it is to be understood that the invention is not limited to the precise embodiments described, and that equipment and structures not described in detail are understood to be practiced as commonly known in the art; any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention will still fall within the protection scope of the technical solution of the present invention by those skilled in the art without departing from the technical solution of the present invention.
Claims (9)
1. The utility model provides a route alternately hangs down wide cast-in-place box girder support of headroom piece, its characterized in that, including cast-in-place stage support, the roof beam body that carries out the roof beam body and pour the roof beam stage support that falls after accomplishing, cast-in-place stage support and the roof beam stage support sharing foundation support that falls, foundation support includes concrete foundation, pier stud, steel-pipe column, abutment, height adjusting part, the pier stud has the multiunit, along the vertical bridge to evenly setting up, the abutment sets up the pier stud top in the outside, the steel-pipe column sets up the inboard of both sides pier stud and both sides pier stud in the middle of the pier stud, concrete foundation sets up the bottom at the steel-pipe column, height adjusting part sets up the top at the steel-pipe column, cast-in-place stage support still includes the spandrel girder that sets up in height adjusting part top, along the vertical bridge to the beilei roof beam that sets up in the spandrel girder top, along the horizontal bridge to evenly setting up the distribution roof beam that is in beilei roof beam top, The support comprises a template arranged above the distribution beam, and the support at the beam falling stage further comprises an adjusting block and a jack arranged at the bottom of the beam body, wherein the adjusting block comprises a steel pipe column adjusting block arranged above the height adjusting piece, a pier column adjusting block arranged on the pier column and an abutment adjusting block arranged on the abutment.
2. The support of claim 1, wherein the form is made of square wood and bamboo plywood.
3. The line intersection low-clearance width-splicing cast-in-place box girder bracket as claimed in claim 2, wherein the number of the steel pipe columns arranged on the same side is three, the two outer steel pipe columns and the pier column are on the same axis, and the middle steel pipe column is located at the center of the girder.
4. The support frame for the line crossing low-clearance widening cast-in-place box girder according to claim 3, wherein a prefabricated flange is arranged at the bottom of the girder body, a plurality of bolt holes are formed in the prefabricated flange, and fixing bolts penetrate through the bolt holes to fix the jack at the bottom of the girder body.
5. The line crossing low-clearance width-splicing cast-in-situ box girder support is characterized in that an embedded steel plate is arranged on the pier stud in the middle, and a steel pipe column close to the pier stud is connected with the embedded steel plate to form a stable structure.
6. The line intersection low-clearance widening cast-in-place box girder support is characterized in that a transverse connecting system is arranged between the adjacent steel pipe columns, and the transverse connecting system is composed of cross rods and inclined rods.
7. The line intersection low clearance widening cast-in-place box girder support according to claim 6, wherein an oil pump and a control system are further connected to the jacks, and the control system controls all the jacks.
8. The support of claim 7, wherein the abutment and pier are provided with a pad.
9. The line crossing low-clearance width-splicing cast-in-place box girder support is characterized in that a corresponding jack above the steel pipe column on one side of the pier column is less than 1 stroke away from the steel pipe column adjusting block, and a corresponding jack on the other side of the pier column is 2 strokes away from the steel pipe column adjusting block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023008112.1U CN214656383U (en) | 2020-12-15 | 2020-12-15 | Line is alternately low headroom and is pieced together wide cast-in-place case roof beam support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023008112.1U CN214656383U (en) | 2020-12-15 | 2020-12-15 | Line is alternately low headroom and is pieced together wide cast-in-place case roof beam support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214656383U true CN214656383U (en) | 2021-11-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023008112.1U Withdrawn - After Issue CN214656383U (en) | 2020-12-15 | 2020-12-15 | Line is alternately low headroom and is pieced together wide cast-in-place case roof beam support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214656383U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112342932A (en) * | 2020-12-15 | 2021-02-09 | 中交二公局第三工程有限公司 | Line-crossing low-clearance width-splicing cast-in-place box girder support and construction method |
-
2020
- 2020-12-15 CN CN202023008112.1U patent/CN214656383U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112342932A (en) * | 2020-12-15 | 2021-02-09 | 中交二公局第三工程有限公司 | Line-crossing low-clearance width-splicing cast-in-place box girder support and construction method |
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Granted publication date: 20211109 Effective date of abandoning: 20230526 |
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Granted publication date: 20211109 Effective date of abandoning: 20230526 |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |