CN112813834A - Beam piece mounting system and mounting method - Google Patents
Beam piece mounting system and mounting method Download PDFInfo
- Publication number
- CN112813834A CN112813834A CN202011639047.4A CN202011639047A CN112813834A CN 112813834 A CN112813834 A CN 112813834A CN 202011639047 A CN202011639047 A CN 202011639047A CN 112813834 A CN112813834 A CN 112813834A
- Authority
- CN
- China
- Prior art keywords
- measuring
- module
- target
- distance
- face
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention relates to the field of bridge construction, aims to solve the problems of difficulty and low efficiency of alignment and installation of the conventional bridge, and provides a beam piece installation system and an installation method. The beam piece mounting system comprises a bridge girder erection machine, a control system and a distance measuring device; the bridge girder erection machine comprises a first support component, a second support component, a third support component and a machine arm; the control system is electrically connected with the distance measuring device and used for receiving the data information of the distance measuring device. The invention has the advantages of greatly improving the positioning precision and the installation precision of the target beam piece, greatly improving the installation efficiency of the beam piece, increasing the quality and the speed of bridge construction, and simultaneously reducing the occurrence of safety accidents in the bridge construction to a certain extent.
Description
Technical Field
The invention relates to the field of bridge construction, in particular to a beam piece mounting system and a beam piece mounting method.
Background
With the increasing demand of bridge construction in China and the increasing level of bridge construction, bridge erecting machines are increasingly adopted to install precast beam pieces on piers in the current bridge construction.
At present, in the installation of piece, need the staff to remove the piece of the roof beam that needs to install and the stone setting that corresponds on the pier through controlling the bridging machine under the general condition and align, at the in-process that the piece of the roof beam aligns with the stone setting on the pier, need the staff constantly to observe the piece of the roof beam terminal surface and the piece of the roof beam side respectively for the distance of the stone setting on the pier through the naked eye, control the bridging machine repeatedly according to the distance observed and adjust the piece of the roof beam of just installing for the stone setting position that corresponds on the pier, until the relative position relation between the piece of the roof beam that needs to install and the stone setting that needs to align satisfies the installation demand of piece of the roof beam, the staff operates the bridging machine and makes the piece of the roof beam that needs to install drop on the stone.
The above prior art solutions have the following drawbacks: 1. the worker observes the position of the beam piece relative to the base stone on the bridge pier through naked eyes, and the working efficiency is low; 2. the positioning precision of the beam piece installed relative to the cushion stone to be aligned is low when the beam piece falls on the beam under the observation of human eyes; 3. the staff is observing the beam piece for the in-process of pier base stone position, and the staff is nearer from the beam piece position, has certain ground potential safety hazard.
Disclosure of Invention
The invention aims to provide a beam piece mounting system and a beam piece mounting method so as to solve the technical problems.
The embodiment of the invention is realized by the following steps:
a blade installation system for installing a target blade on a target pier in alignment with a target pad, the blade installation system comprising a bridge girder erection machine, and further comprising: a control system and a distance measuring device;
the bridge girder erection machine comprises a first support component, a second support component, a third support component and a machine arm, wherein the second support component is positioned between the first support component and the third support component;
the first support assembly, the second support assembly and the third support assembly are all located at the lower end of the machine arm and are all used for supporting the machine arm, and the first support assembly is close to a target cushion stone to be installed and aligned on a target beam piece;
the first support assembly comprises a first support column, a first slide rail and a first roller, the first support column is in rolling connection with the lower end face of the horn, the first roller is fixedly connected with the lower end face of the first support column, the first slide rail is in static contact with the upper end face of the pier, and the first roller is in rolling connection with the first slide rail;
the control system is electrically connected with the ranging device and used for receiving data information of the ranging device; the distance measuring device includes: first range finding module, second range finding module, third range finding module, fourth range finding module and fifth range finding module, first range finding module fixed connection be in on the first slide rail, second range finding module fixed connection be in on the first support column, third range finding module fixed connection be in on the first slide rail, fourth range finding module fixed link is in on the first slide rail, fifth range finding module fixed connection be in on the horn, first range finding module the second range finding module the third range finding module the fourth range finding module with fifth range finding module is used for confirming the target beam piece for the position of target stone pad.
In one embodiment:
the target pier is provided with a second end surface and a second side surface, the end surface of the target pier corresponding to the first distance measuring module is the second end surface, and the side surface of the target pier corresponding to the third distance measuring module is the second side surface; the target beam piece is provided with a third end face and a third side face, in the installation process of the target beam piece, the end face of the target beam piece corresponding to the first support column is the third end face, the side face of the target beam piece corresponding to the fifth ranging module is the third side face, the third end face is provided with a third central line, and the vertical central line of the third end face is the third central line; the first roller comprises a first side surface, the side surface of the first roller corresponding to the fourth ranging module is the first side surface, and the first side surface is a plane;
the first distance measuring module comprises a first measuring surface, the first measuring surface is a reference surface used for measuring by the first distance measuring module, and the first measuring surface is opposite to the second end surface; the second distance measuring module comprises a second measuring surface, the second measuring surface is a reference surface used for measuring by the second distance measuring module, and the second measuring surface can be opposite to the third end surface; the third distance measuring module comprises a third measuring surface, the third measuring surface is a reference surface used for measuring by the third distance measuring module, and the third measuring surface is opposite to the second side surface; the fourth distance measuring module comprises a fourth measuring surface, the fourth measuring surface is a reference surface used for measuring by the fourth distance measuring module, and the fourth measuring surface is opposite to the first side surface; the fifth distance measuring module comprises a fifth measuring surface, the fifth measuring surface is a reference surface used for measuring by the fifth distance measuring module, and the fifth measuring surface is opposite to the third side surface.
In one embodiment:
the first measuring surface is parallel to the second end surface, the second measuring surface is parallel to the third end surface, the third measuring surface is parallel to the second side surface, the fourth measuring surface is parallel to the first side surface, and the fifth measuring surface is parallel to the third side surface.
In one embodiment:
the first measuring surface, the second end surface and the third end surface are parallel to each other, and the third measuring surface, the fourth measuring surface, the fifth measuring surface, the second side surface, the first side surface and the third side surface are parallel to each other.
In one embodiment:
the third ranging module, the fourth ranging module and the fifth ranging module are all located on the same side of the bridge girder erection machine.
In one embodiment:
the third measuring surface, the fourth measuring surface and the fifth measuring surface are located on the same side close to the first side surface.
In one embodiment:
the bridge girder erection machine further comprises a front hanging beam trolley and a rear hanging beam trolley, the front hanging beam trolley and the rear hanging beam trolley are positioned at the upper end of the machine arm, the front hanging beam trolley and the rear hanging beam trolley are respectively connected with the target beam piece through ropes, and the front hanging beam trolley and the rear hanging beam trolley are both electrically connected with the control system;
the first ranging module, the second ranging module, the third ranging module, the fourth ranging module and the fifth ranging module are electrically connected with a data transmission assembly, and the data transmission assembly is used for transmitting received data to the control system;
the target cushion stone comprises a first central line, a vertical straight line passing through the body center of the target cushion stone is the first central line, the control system controls the front hanging beam trolley and the rear hanging beam trolley to drive the target beam piece to move according to the received data, so that the target beam piece can be controlled to move towards the direction close to the first central line, and finally the third central line is controlled to be coincident with the first central line, namely the target beam piece and the target cushion stone are controlled to be aligned as required.
The invention also provides a beam piece mounting method which is based on the beam piece mounting system and comprises the following steps:
s1: installing the first ranging module, the second ranging module, the third ranging module, the fourth ranging module and the fifth ranging module;
s2: measuring a perpendicular distance y3 from the first centerline to the second end face, measuring a perpendicular distance x4 from the first centerline to the second side face;
s3: measuring the width L of the cross section of the lower end of the target beam piece;
s4: measuring a vertical distance y4 from the measuring surface of the first ranging module to the second measuring surface, measuring a vertical distance x5 from the fifth ranging module to the first side surface, and measuring a vertical distance x6 from the measuring surface of the third ranging module to the measuring surface of the fourth ranging module;
s5: transmitting the data y3, y4, x4, x5, x6 and L obtained in S1-S3 to the control system;
s6: the vertical distance y1 from the first measuring surface to the second end surface measured by the first ranging module is automatically synchronized to the control system, the vertical distance y2 from the second measuring surface to the third end surface measured by the second ranging module is automatically synchronized to the control system, the vertical distance x1 from the third measuring surface to the second side surface measured by the third ranging module is automatically synchronized to the control system, the vertical distance x2 from the fourth measuring surface to the first side surface measured by the fourth ranging module is automatically synchronized to the control system, and the vertical distance x3 from the fifth measuring surface to the third side surface measured by the fifth ranging module is automatically synchronized to the control system;
s7: in the installation process of the target beam piece, the vertical distance from the third end face to the first center line is y5, the vertical distance y6 from the first measuring face to the first center line meets the formula y 6-y 2+ y4-y5, and the vertical distance y6 from the first measuring face to the first center line also meets the formula y 6-y 1+ y3, so that the vertical distance y5 from the third end face to the first center line meets the formula y 5-y 2+ y4-y1-y 3;
s8: the control system obtains a vertical distance y5 from the third end face to the first center line according to a formula y5, namely y2+ y4-y1-y 3;
s9: the control system controls the front hanging beam trolley and the rear hanging beam trolley to simultaneously move y5 towards the direction close to the first central line along the length direction of the machine arm, so that the front hanging beam trolley and the rear hanging beam trolley drive the target beam piece to move y5 towards the direction close to the first central line along the length direction of the machine arm, and the third end face is coincided with the first central line;
s10: keeping in mind that a perpendicular distance from the third centerline to the first centerline is x7, a perpendicular distance x8 from the fourth measurement plane to the fifth measurement plane satisfies the formula x8 ═ x2-x5, a perpendicular distance x9 from the fourth measurement plane to the first centerline satisfies the formula x9 ═ x1+ x4, and a perpendicular distance x9 from the fourth measurement plane to the first centerline further satisfies the formula x9 ═ x7+ L/2+ x3+ x8-x6, so that a perpendicular distance x7 from the third centerline to the first centerline satisfies the formula x7 ═ x1-x2-x3+ x4+ x5+ x 6-L/2;
s11: the control system obtains a perpendicular distance x7 from the third center line to the first center line according to a formula x7, wherein x1-x2-x3+ x4+ x5+ x 6-L/2;
s12: the control system controls the front hanging beam trolley and the rear hanging beam trolley to simultaneously move x7 along the direction perpendicular to the length direction of the machine arm towards the direction close to the target cushion stone, so that the front hanging beam trolley and the rear hanging beam trolley drive the target beam piece to move x7 along the direction perpendicular to the length direction of the machine arm towards the direction close to the first center line, the third center line is coincident with the first center line, and the target beam piece is aligned with the target cushion stone according to requirements.
In conclusion, the beneficial technical effects of the invention are as follows: the invention can accurately measure the position of the target beam piece relative to the target pad stone, and the control system can automatically control the target beam piece to be accurately aligned with the target pad stone according to the measured data, thereby greatly improving the positioning precision and the installation precision of the target beam piece, greatly improving the installation efficiency of the beam piece, increasing the quality and the speed of bridge construction, and simultaneously reducing the occurrence of safety accidents in the bridge construction to a certain extent.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings referred to in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings may be obtained from these drawings without inventive effort.
FIG. 1 is a schematic structural view of a beam panel mounting system in an embodiment of the present invention;
FIG. 2 is an enlarged view at A of FIG. 1;
FIG. 3 is an elevation view of a beam panel mounting system in an embodiment of the present invention;
FIG. 4 is an enlarged view at B of FIG. 3;
FIG. 5 is a left side view of a beam panel mounting system in an embodiment of the present invention;
fig. 6 is an enlarged view at C of fig. 5.
Icon: 1. a bridge girder erection machine; 11. a first support assembly; 111. a first support column; 112. a first slide rail; 113. a first roller; 1131. a first side surface; 12. a second support assembly; 13. a third support assembly; 14. a horn; 15. a front hanging beam trolley; 16. a rear hanging beam trolley; 2. a bridge pier; 21. a target pier; 211. a second side surface; 212. a second end face; 3. a cushion stone; 31. a target pad stone; 311. a first centerline; 4. a target beam piece; 41. a third end face; 411. a third centerline; 42. a third side; 5. a control system; 61. a first ranging module; 611. a first measuring surface; 62. a second ranging module; 621. a second measuring surface; 63. a second ranging module; 631. a second measuring surface; 64. a second ranging module; 641. a second measuring surface; 65. a second ranging module; 651. second measuring surface
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Examples
As shown in fig. 1, the embodiment provides a beam piece installation system, which can realize a full-automatic intelligent monitoring of an installation process of a target beam piece based on the internet of things, and ensure that the target beam piece is quickly and accurately aligned with a target pad stone and installed on a target bridge pier.
The beam piece installation system in the embodiment comprises a bridge girder erection machine 1, piers 2, a cushion stone 3, a target beam piece 4 and a control system 5, wherein the bridge girder erection machine 1 comprises a first support component 11, a second support component 12, a third support component 13, a machine arm 14, a front hanging beam trolley 15 and a rear hanging beam trolley 16, the target beam piece 4 is connected under the front hanging beam trolley 15 and the rear hanging beam trolley 16 through ropes by the front hanging beam trolley 15 and the rear hanging beam trolley 16, and the lower end surface of the target beam piece 4 is ensured to be parallel to the horizontal plane, the control system 5 can control the front hanging beam trolley 15 and the rear hanging beam trolley 16 to move along the length direction of the machine arm 14, can also control the front hanging beam trolley 15 and the rear hanging beam trolley 16 to move along the length direction vertical to the machine arm 14, so that the control system 5 can control the target beam 4 to move along the length direction of the horn 14 and to move perpendicular to the length direction of the horn 14.
The first support assembly 11 and the third support assembly 13 are respectively arranged at two sides of the second support assembly 12, the first support assembly 11, the second support assembly 12 and the third support assembly 13 are all used for supporting the machine arm 14, and the control system 5 controls the target beam piece 4 to move towards the direction close to the first support assembly 11. The first support assembly 11 includes a first support column 111, a first slide rail 112 and a first roller 113, the upper end of the first support column 111 is connected with the lower end face of the horn 14 in a sliding manner, the lower end of the first support column 111 is fixedly connected with the first roller 113, the first roller 113 is connected with the first slide rail 112 in a rolling manner, the first slide rail 112 falls on the pier 2, the pad stone 3 includes a target pad stone 31, and the target pad stone 31 is the pad stone 3 to be aligned with the target beam piece 4.
As shown in fig. 1 and fig. 2, the system further includes a first ranging module 61, a second ranging module 62, and a third ranging module 63, fourth range module 64 and fifth range module 65, first range module 61 fixed connection is on the one side that first slide rail 112 kept away from target beam piece 4, second range module 62 fixed connection is on the one side that first support column 111 kept away from target beam piece 4, third range module 63 fixed connection is on the lower terminal surface of first slide rail 112, fourth range module 64 fixed connection is on the up end of first slide rail 112, fifth range module 65 fixed connection is in the side of horn 14, first range module 61 and second range module 62 are located the same side that first support component 11 kept away from target beam piece 4, third range module 63, fourth range module 64 and fifth range module 65 are located the same side that horn 14 kept away from target beam piece 4. The first roller 113 comprises a first side surface 1131, the first side surface 1131 is a side surface of the first roller 113 close to the fourth distance measuring module 64, the pier 2 comprises a target pier 21, the target pier 21 is a pier 2 which needs to be measured by the first distance measuring module 61 and the third distance measuring module 61, the target pier 21 comprises a second side surface 211 and a second end surface 212, the second side surface 211 is a side surface of the target pier 21 close to the third distance measuring module 63, the second end surface 212 is an end surface of the target pier 21 close to the first distance measuring module 61, the target beam 4 comprises a third end surface 41 and a third side surface 42, the third end surface 41 is an end surface of the target beam 4 close to the second distance measuring module 62, and the third side surface 42 is a side surface of the target beam 4 close to the fifth distance measuring module 65. The first ranging module 61 is opposite to the second end surface 212, the second ranging module 62 is opposite to the third end surface 41, the third ranging module 63 is opposite to the second side surface 211, the fourth ranging module 64 is opposite to the first side surface 1131, and the fifth ranging module 65 is opposite to the third side surface 42.
Referring to fig. 3 and 4, the target cushion stone 31 includes a first center line 311, the first center line 311 is a vertical straight line passing through a center of the target cushion stone 31, the first distance measuring module 61 includes a first measuring surface 611, the first measuring surface 611 is a reference surface used by the first distance measuring module 61 for measurement, the second distance measuring module 62 includes a second measuring surface 621, the second measuring surface 621 is a pseudo-reference surface used by the second distance measuring module 62 for measurement, and the first measuring surface 611, the second end surface 212, the second measuring surface 621, the third end surface 41 and the first center line 311 are parallel to each other. The first distance measuring module 61 measures the vertical distance from the first measuring surface 611 to the second end surface 212, which is denoted as y 1; the second distance measuring module 62 measures the vertical distance from the second measuring surface 621 to the third end surface 41, which is recorded as y 2; the vertical distance from the second end surface 212 to the first center line 311 can be directly obtained according to a design drawing of a corresponding bridge pier and is marked as y 3; the vertical distance from the first measuring surface 611 to the second measuring surface 621 can be directly measured after the first ranging module 61 and the second ranging module 62 are installed as required, and is marked as y4, and the distance is fixed after the first ranging module 61 and the second ranging module 62 are installed; in the process of mounting the target beam piece 4, the vertical distance from the third end surface 41 to the first center line 311 changes along with the movement of the target beam piece 4, and is recorded as y 5; after the first distance measuring module 61 is installed as required, the vertical distance of the first measuring surface 611 from the first center line 311 is fixed, and is denoted by y 6.
As is apparent from fig. 4, the vertical distance y6 of the first measurement surface 611 from the first center line 311 satisfies both the formulas y6 ═ y2+ y4-y5 and y6 ═ y1+ y3, so that it can be concluded that the vertical distance y5 of the third end surface 41 from the first center line 311 satisfies the formulas y5 ═ y2+ y4-y1-y 3.
After synchronizing the vertical distance y3 from the second end surface 212 to the first center line 311 and the vertical distance y4 from the first measuring surface 611 to the second measuring surface 621 to the control system 5, when the target beam 4 is installed, the first distance measuring module 61 automatically synchronizes the vertical distance y1 from the first measuring surface 611 to the second end surface 212 to the control system 5, at the same time, the second ranging module 62 automatically synchronizes the vertical distance y2 from the second measuring surface 621 to the third end surface 41 to the control system 5, the control system 5 can thus obtain the perpendicular distance y5 of the third end face 41 from the first centre line 311 according to the formula y 5-y 2+ y4-y1-y3, then, the control system 5 controls the front and rear suspension carriages 15 and 16 to move the target beam 4 in the direction approaching the first center line 311 along the length direction of the horn 14 by y5, so that the third end surface 41 can be aligned with the first center line 311.
As shown in fig. 5 and 6, the third end surface 41 includes a third center line 411, the third center line 411 is a vertical center line of the third end surface 41, and the first side surface 1131, the second side surface 211, the third center line 411, the third measuring surface 631, the fourth measuring surface 641, and the fifth measuring surface 651 are parallel to each other. The third distance measuring module 63 measures the vertical distance from the third measuring surface 631 to the second side surface 211, which is denoted as x 1; the fourth distance measuring module 64 measures the vertical distance from the fourth measuring surface 641 to the first side surface 1131, which is denoted as x 2; the fifth distance measuring module 65 measures the vertical distance from the fifth measuring surface 651 to the third side surface 42, and is marked as x 3; the vertical distance from the second side surface 211 to the first center line 311 can be directly obtained according to the design drawing of a bridge pier and is marked as x 4; the vertical distance from the fifth measuring plane 651 to the first side surface 1131 can be directly measured after the fifth ranging module 65 is installed as required, and is marked as x5, and the distance is fixed and unchanged after the fifth ranging module 65 is installed; the vertical distance from the third measuring surface 631 to the fourth measuring surface 641 can be directly measured after the third ranging module 63 and the fourth ranging module 64 are installed as required, and is marked as x6, and the distance is fixed after the third ranging module 63 and the fourth ranging module 64 are installed; during the installation of the target beam piece 4, the vertical distance from the first center line 311 to the third side surface 42 varies with the movement of the target beam piece 4, which is denoted as x 7; the vertical distance from the fourth measuring surface 641 to the fifth measuring surface 651 dynamically changes with the movement of the horn 14 relative to the first slide rail 112, which is denoted as x 8; the vertical distance from the third ranging module 63 to the first center line 311 is fixed after the third ranging module 63 is installed, and is marked as x 9; the width of the cross section of the lower end of the target beam piece 4 is a fixed value, and is marked as L, and the vertical distance from the third side surface 42 to the center line of the third end surface 41 is L/2.
As is apparent from fig. 6, the perpendicular distance x8 from the fourth measuring surface 641 to the fifth measuring surface 651 always satisfies the formula x8 ═ x2-x5, and the perpendicular distance x9 from the third measuring surface 631 to the first center line 311 satisfies both the formula x9 ═ x1+ x4 and the formula x9 ═ x7+ L/2+ x3+ x8-x6, so that it can be inferred that the perpendicular distance x7 from the third center line 411 to the first center line 311 satisfies the formula x7 ═ x1-x2-x3+ x4+ x5+ x 6-L/2.
After synchronizing the vertical distance x4 from the second side surface 211 to the first center line 311, the vertical distance x5 from the fifth measuring surface 651 to the first side surface 1131, the vertical distance x6 from the third measuring surface 631 to the fourth measuring surface 641, and the width L of the cross section at the lower end of the target beam 4 to the control system 5, during the installation of the target beam 4, the third ranging module 63 automatically synchronizes the vertical distance x1 from the third measuring surface 631 to the second side surface 211 to the control system 5, the fourth ranging module 64 automatically synchronizes the vertical distance x2 from the fourth measuring surface 641 to the first side surface 1131 to the control system 5, and at the same time, the fifth ranging module 65 automatically synchronizes the vertical distance x3 from the fifth measuring surface 651 to the third side surface 42 to the control system 5, so that the control system 5 can obtain the vertical distance x7 from the third center line to the first center line 411 according to the formula x 7-1-x 2-x3+ x 46 5+ x6-L/2, then, the control system 5 controls the front beam trolley 15 and the rear beam trolley 16 to drive the target beam 4 to move x7 in a direction perpendicular to the length direction of the boom 14 and toward the direction close to the first center line 311, so that the third center line 411 is aligned with the first center line 311.
Through the steps, in the installation process of the target beam piece 4, the control system 5 can automatically control the third central line 411 to be completely superposed with the first central line 311 according to the synchronous data of the first ranging module 61, the second ranging module 62, the third ranging module 63, the fourth ranging module 64 and the fifth ranging module 65, namely, the control system 5 automatically controls the target beam piece 4 to be aligned with the target cushion stone 31 as required, so that the automatic installation of the target beam piece 4 is realized, the installation efficiency and the installation precision of the beam piece are greatly improved, the speed of bridge construction is integrally accelerated, and the bridge construction level is improved to a certain extent.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A blade installation system for installing a target blade on a target pier in alignment with a target pad, the blade installation system comprising a bridge girder erection machine, characterized in that:
further comprising: a control system and a distance measuring device;
the bridge girder erection machine comprises a first support component, a second support component, a third support component and a machine arm, wherein the second support component is positioned between the first support component and the third support component;
the first support assembly, the second support assembly and the third support assembly are all located at the lower end of the machine arm and are all used for supporting the machine arm, and the first support assembly is close to a target cushion stone to be installed and aligned on a target beam piece;
the first support assembly comprises a first support column, a first slide rail and a first roller, the first support column is in rolling connection with the lower end face of the horn, the first roller is fixedly connected with the lower end face of the first support column, the first slide rail is in static contact with the upper end face of the pier, and the first roller is in rolling connection with the first slide rail;
the control system is electrically connected with the ranging device and used for receiving data information of the ranging device; the distance measuring device includes: first range finding module, second range finding module, third range finding module, fourth range finding module and fifth range finding module, first range finding module fixed connection be in on the first slide rail, second range finding module fixed connection be in on the first support column, third range finding module fixed connection be in on the first slide rail, fourth range finding module fixed link is in on the first slide rail, fifth range finding module fixed connection be in on the horn, first range finding module the second range finding module the third range finding module the fourth range finding module with fifth range finding module is used for confirming the target beam piece for the position of target stone pad.
2. The beam panel mounting system of claim 1, wherein:
the target pier is provided with a second end surface and a second side surface, the end surface of the target pier corresponding to the first distance measuring module is the second end surface, and the side surface of the target pier corresponding to the third distance measuring module is the second side surface; the target beam piece is provided with a third end face and a third side face, in the installation process of the target beam piece, the end face of the target beam piece corresponding to the first support column is the third end face, the side face of the target beam piece corresponding to the fifth ranging module is the third side face, the third end face is provided with a third central line, and the vertical central line of the third end face is the third central line; the first roller comprises a first side surface, the side surface of the first roller corresponding to the fourth ranging module is the first side surface, and the first side surface is a plane;
the first distance measuring module comprises a first measuring surface, the first measuring surface is a reference surface used for measuring by the first distance measuring module, and the first measuring surface is opposite to the second end surface; the second distance measuring module comprises a second measuring surface, the second measuring surface is a reference surface used for measuring by the second distance measuring module, and the second measuring surface can be opposite to the third end surface; the third distance measuring module comprises a third measuring surface, the third measuring surface is a reference surface used for measuring by the third distance measuring module, and the third measuring surface is opposite to the second side surface; the fourth distance measuring module comprises a fourth measuring surface, the fourth measuring surface is a reference surface used for measuring by the fourth distance measuring module, and the fourth measuring surface is opposite to the first side surface; the fifth distance measuring module comprises a fifth measuring surface, the fifth measuring surface is a reference surface used for measuring by the fifth distance measuring module, and the fifth measuring surface is opposite to the third side surface.
3. The beam panel mounting system of claim 2, wherein:
the first measuring surface is parallel to the second end surface, the second measuring surface is parallel to the third end surface, the third measuring surface is parallel to the second side surface, the fourth measuring surface is parallel to the first side surface, and the fifth measuring surface is parallel to the third side surface.
4. The beam panel mounting system of claim 3, wherein:
the first measuring surface, the second end surface and the third end surface are parallel to each other, and the third measuring surface, the fourth measuring surface, the fifth measuring surface, the second side surface, the first side surface and the third side surface are parallel to each other.
5. The beam panel mounting system of claim 1, wherein:
the third ranging module, the fourth ranging module and the fifth ranging module are all located on the same side of the bridge girder erection machine.
6. The beam panel mounting system of claim 2, wherein:
the third measuring surface, the fourth measuring surface and the fifth measuring surface are located on the same side close to the first side surface.
7. The beam panel mounting system of claim 2, wherein:
the bridge girder erection machine further comprises a front hanging beam trolley and a rear hanging beam trolley, the front hanging beam trolley and the rear hanging beam trolley are positioned at the upper end of the machine arm, the front hanging beam trolley and the rear hanging beam trolley are respectively connected with the target beam piece through ropes, and the front hanging beam trolley and the rear hanging beam trolley are both electrically connected with the control system;
the first ranging module, the second ranging module, the third ranging module, the fourth ranging module and the fifth ranging module are electrically connected with a data transmission assembly, and the data transmission assembly is used for transmitting received data to the control system;
the target cushion stone comprises a first central line, a vertical straight line passing through the body center of the target cushion stone is the first central line, the control system controls the front hanging beam trolley and the rear hanging beam trolley to drive the target beam piece to move according to the received data, so that the target beam piece can be controlled to move towards the direction close to the first central line, and finally the third central line is controlled to be coincident with the first central line, namely the target beam piece and the target cushion stone are controlled to be aligned as required.
8. A beam panel installation method, characterized in that the beam panel installation method is based on the beam panel installation system of any one of claims 1 to 7, and the beam panel installation method comprises the following steps:
s1: installing the first ranging module, the second ranging module, the third ranging module, the fourth ranging module and the fifth ranging module;
s2: measuring a perpendicular distance y3 from the first centerline to the second end face, measuring a perpendicular distance x4 from the first centerline to the second side face;
s3: measuring the width L of the cross section of the lower end of the target beam piece;
s4: measuring a vertical distance y4 from the measuring surface of the first ranging module to the second measuring surface, measuring a vertical distance x5 from the fifth ranging module to the first side surface, and measuring a vertical distance x6 from the measuring surface of the third ranging module to the measuring surface of the fourth ranging module;
s5: transmitting the data y3, y4, x4, x5, x6 and L obtained in S1-S3 to the control system;
s6: the vertical distance y1 from the first measuring surface to the second end surface measured by the first ranging module is automatically synchronized to the control system, the vertical distance y2 from the second measuring surface to the third end surface measured by the second ranging module is automatically synchronized to the control system, the vertical distance x1 from the third measuring surface to the second side surface measured by the third ranging module is automatically synchronized to the control system, the vertical distance x2 from the fourth measuring surface to the first side surface measured by the fourth ranging module is automatically synchronized to the control system, and the vertical distance x3 from the fifth measuring surface to the third side surface measured by the fifth ranging module is automatically synchronized to the control system;
s7: in the installation process of the target beam piece, the vertical distance from the third end face to the first center line is y5, the vertical distance y6 from the first measuring face to the first center line meets the formula y 6-y 2+ y4-y5, and the vertical distance y6 from the first measuring face to the first center line also meets the formula y 6-y 1+ y3, so that the vertical distance y5 from the third end face to the first center line meets the formula y 5-y 2+ y4-y1-y 3;
s8: the control system obtains a vertical distance y5 from the third end face to the first center line according to a formula y5, namely y2+ y4-y1-y 3;
s9: the control system controls the front hanging beam trolley and the rear hanging beam trolley to simultaneously move y5 towards the direction close to the first central line along the length direction of the machine arm, so that the front hanging beam trolley and the rear hanging beam trolley drive the target beam piece to move y5 towards the direction close to the first central line along the length direction of the machine arm, and the third end face is coincided with the first central line;
s10: keeping in mind that a perpendicular distance from the third centerline to the first centerline is x7, a perpendicular distance x8 from the fourth measurement plane to the fifth measurement plane satisfies the formula x8 ═ x2-x5, a perpendicular distance x9 from the fourth measurement plane to the first centerline satisfies the formula x9 ═ x1+ x4, and a perpendicular distance x9 from the fourth measurement plane to the first centerline further satisfies the formula x9 ═ x7+ L/2+ x3+ x8-x6, so that a perpendicular distance x7 from the third centerline to the first centerline satisfies the formula x7 ═ x1-x2-x3+ x4+ x5+ x 6-L/2;
s11: the control system obtains a perpendicular distance x7 from the third center line to the first center line according to a formula x7, wherein x1-x2-x3+ x4+ x5+ x 6-L/2;
s12: the control system controls the front hanging beam trolley and the rear hanging beam trolley to simultaneously move x7 along the direction perpendicular to the length direction of the machine arm towards the direction close to the target cushion stone, so that the front hanging beam trolley and the rear hanging beam trolley drive the target beam piece to move x7 along the direction perpendicular to the length direction of the machine arm towards the direction close to the first center line, the third center line is coincident with the first center line, and the target beam piece is aligned with the target cushion stone according to requirements.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011639047.4A CN112813834B (en) | 2020-12-31 | 2020-12-31 | Beam piece mounting system and mounting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011639047.4A CN112813834B (en) | 2020-12-31 | 2020-12-31 | Beam piece mounting system and mounting method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112813834A true CN112813834A (en) | 2021-05-18 |
| CN112813834B CN112813834B (en) | 2022-12-16 |
Family
ID=75857782
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011639047.4A Active CN112813834B (en) | 2020-12-31 | 2020-12-31 | Beam piece mounting system and mounting method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112813834B (en) |
Citations (34)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07311033A (en) * | 1994-05-20 | 1995-11-28 | Ishikawajima Harima Heavy Ind Co Ltd | Three-dimensional measuring device for structure |
| JP2000170122A (en) * | 1998-12-08 | 2000-06-20 | Kajima Corp | Erection method of concrete girder and its device |
| JP2003114105A (en) * | 2001-10-04 | 2003-04-18 | Nkk Corp | Construction method for large structure |
| JP2008144472A (en) * | 2006-12-11 | 2008-06-26 | Yokogawa Bridge Holdings Corp | Position adjustment method and device for connection of bridge girder |
| CN102691264A (en) * | 2012-05-16 | 2012-09-26 | 天津市公路工程总公司 | Slipping slot type cross transfer device and method for assisting hoisting of large-size box girder |
| JP2013019202A (en) * | 2011-07-13 | 2013-01-31 | Ihi Construction Service Co Ltd | Method for controlling finish height of concrete slab |
| CN202830780U (en) * | 2012-10-23 | 2013-03-27 | 中铁十局集团有限公司 | Safety protection device for engine driven flat car running and aligning |
| JP2014105483A (en) * | 2012-11-27 | 2014-06-09 | Mitsubishi Heavy Industries Bridge & Steel Structures Engineering Co Ltd | Bridge erection apparatus and bridge erection method |
| CN104060543A (en) * | 2014-07-01 | 2014-09-24 | 中铁八局集团昆明铁路建设有限公司 | Installation device of prefabricated bridge deck |
| CN204356656U (en) * | 2014-12-10 | 2015-05-27 | 邯郸中铁桥梁机械有限公司 | A kind of single-nose bridge girder erection machine horn traversing distance automatic detection device |
| CN204676433U (en) * | 2015-05-22 | 2015-09-30 | 福建省工业设备安装有限公司 | The Hydraulic Deviation-correcting Device of steel box-girder traction slippage |
| CN205171388U (en) * | 2015-12-09 | 2016-04-20 | 中铁建大桥工程局集团第五工程有限公司 | Fine setting structure during walking frame bridge crane bridging roof beam |
| CN107815975A (en) * | 2017-11-28 | 2018-03-20 | 江西乔田重工有限公司 | Incremental launching construction by multipoint jacking device and construction method of the multi-joint multi-span steel beam based on independent non-rigid bridge pier |
| CN107901829A (en) * | 2017-11-27 | 2018-04-13 | 中铁十二局集团有限公司 | A kind of beam car correction monitoring system |
| KR101852301B1 (en) * | 2017-07-10 | 2018-06-11 | 이학근 | System for lifting bridge top plate to minimize errors, and method of lifting bridge top plate using the same |
| CN108360386A (en) * | 2018-03-29 | 2018-08-03 | 石家庄铁道大学 | A kind of accurate erection construction method of whole opening prefabricated simple supported box beam bridge |
| CN108762059A (en) * | 2018-08-12 | 2018-11-06 | 广州瀚阳工程咨询有限公司 | A kind of automatic control system applied to short-line prefabrication bridge subsection |
| CN109440658A (en) * | 2018-11-29 | 2019-03-08 | 襄阳协利成机车车辆工程设备有限公司 | Bridge Erector hanging beam overhead crane cross traveling trolley and Bridge Erector |
| CN109552313A (en) * | 2018-12-29 | 2019-04-02 | 合肥正浩机械科技有限公司 | A kind of double vehicle synchronous control systems of simply-support bridge transportation |
| CN109629452A (en) * | 2019-01-30 | 2019-04-16 | 中国冶集团有限公司 | Precast beam positioning device and its method |
| CN109680618A (en) * | 2019-01-28 | 2019-04-26 | 中铁重工有限公司 | Steel box-girder entirety fall girder apparatus and its fall beam method |
| CN110093859A (en) * | 2019-05-07 | 2019-08-06 | 中国铁道科学研究院集团有限公司铁道建筑研究所 | A kind of railway prefabricated beam falls girder system system automatically and falls beam construction method |
| CN110106787A (en) * | 2019-04-10 | 2019-08-09 | 四川雅康高速公路有限责任公司 | Bridge falls beam construction method between tunnel |
| CN110219242A (en) * | 2019-05-21 | 2019-09-10 | 宁波市政工程建设集团股份有限公司 | A kind of double-deck construction method of installation for synchronizing beam in beam |
| CN110304551A (en) * | 2019-08-08 | 2019-10-08 | 陕西理工大学 | Bridge Erector based on machine vision precisely falls beam wireless control system and method |
| CN210031535U (en) * | 2019-04-24 | 2020-02-07 | 中铁第五勘察设计院集团有限公司 | Simply supported box girder beam falling alignment device |
| CN111074783A (en) * | 2020-01-06 | 2020-04-28 | 苏州荣宝升城市建设有限公司 | Three-dimensional accurate alignment device, rapid bridging equipment based on self-propelled module transport vehicle and bridging method |
| CN111172885A (en) * | 2020-01-19 | 2020-05-19 | 石岩 | Steel box girder butt joint detection assembly and butt joint method |
| CN111170138A (en) * | 2020-03-12 | 2020-05-19 | 广东省建筑工程机械施工有限公司 | Accurate hoisting device and method for precast beam |
| CN210886940U (en) * | 2019-07-29 | 2020-06-30 | 中铁八局集团昆明铁路建设有限公司 | Bridge segment prefabrication, assembly and initial adjustment orientation system |
| CN111648237A (en) * | 2019-11-27 | 2020-09-11 | 泰富重工制造有限公司 | Follow-up following method for front and rear cranes of bridge girder erection machine |
| CN111676815A (en) * | 2020-05-28 | 2020-09-18 | 中铁十局集团青岛工程有限公司 | Positioning method and positioning system for steel truss girder in-place construction |
| CN211815513U (en) * | 2019-12-27 | 2020-10-30 | 中铁八局集团昆明铁路建设有限公司 | Bridge supporting pad stone anchor bolt hole positioning device |
| CN111851294A (en) * | 2019-04-24 | 2020-10-30 | 中铁第五勘察设计院集团有限公司 | Simply supported box girder falling alignment device and application method thereof |
-
2020
- 2020-12-31 CN CN202011639047.4A patent/CN112813834B/en active Active
Patent Citations (34)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07311033A (en) * | 1994-05-20 | 1995-11-28 | Ishikawajima Harima Heavy Ind Co Ltd | Three-dimensional measuring device for structure |
| JP2000170122A (en) * | 1998-12-08 | 2000-06-20 | Kajima Corp | Erection method of concrete girder and its device |
| JP2003114105A (en) * | 2001-10-04 | 2003-04-18 | Nkk Corp | Construction method for large structure |
| JP2008144472A (en) * | 2006-12-11 | 2008-06-26 | Yokogawa Bridge Holdings Corp | Position adjustment method and device for connection of bridge girder |
| JP2013019202A (en) * | 2011-07-13 | 2013-01-31 | Ihi Construction Service Co Ltd | Method for controlling finish height of concrete slab |
| CN102691264A (en) * | 2012-05-16 | 2012-09-26 | 天津市公路工程总公司 | Slipping slot type cross transfer device and method for assisting hoisting of large-size box girder |
| CN202830780U (en) * | 2012-10-23 | 2013-03-27 | 中铁十局集团有限公司 | Safety protection device for engine driven flat car running and aligning |
| JP2014105483A (en) * | 2012-11-27 | 2014-06-09 | Mitsubishi Heavy Industries Bridge & Steel Structures Engineering Co Ltd | Bridge erection apparatus and bridge erection method |
| CN104060543A (en) * | 2014-07-01 | 2014-09-24 | 中铁八局集团昆明铁路建设有限公司 | Installation device of prefabricated bridge deck |
| CN204356656U (en) * | 2014-12-10 | 2015-05-27 | 邯郸中铁桥梁机械有限公司 | A kind of single-nose bridge girder erection machine horn traversing distance automatic detection device |
| CN204676433U (en) * | 2015-05-22 | 2015-09-30 | 福建省工业设备安装有限公司 | The Hydraulic Deviation-correcting Device of steel box-girder traction slippage |
| CN205171388U (en) * | 2015-12-09 | 2016-04-20 | 中铁建大桥工程局集团第五工程有限公司 | Fine setting structure during walking frame bridge crane bridging roof beam |
| KR101852301B1 (en) * | 2017-07-10 | 2018-06-11 | 이학근 | System for lifting bridge top plate to minimize errors, and method of lifting bridge top plate using the same |
| CN107901829A (en) * | 2017-11-27 | 2018-04-13 | 中铁十二局集团有限公司 | A kind of beam car correction monitoring system |
| CN107815975A (en) * | 2017-11-28 | 2018-03-20 | 江西乔田重工有限公司 | Incremental launching construction by multipoint jacking device and construction method of the multi-joint multi-span steel beam based on independent non-rigid bridge pier |
| CN108360386A (en) * | 2018-03-29 | 2018-08-03 | 石家庄铁道大学 | A kind of accurate erection construction method of whole opening prefabricated simple supported box beam bridge |
| CN108762059A (en) * | 2018-08-12 | 2018-11-06 | 广州瀚阳工程咨询有限公司 | A kind of automatic control system applied to short-line prefabrication bridge subsection |
| CN109440658A (en) * | 2018-11-29 | 2019-03-08 | 襄阳协利成机车车辆工程设备有限公司 | Bridge Erector hanging beam overhead crane cross traveling trolley and Bridge Erector |
| CN109552313A (en) * | 2018-12-29 | 2019-04-02 | 合肥正浩机械科技有限公司 | A kind of double vehicle synchronous control systems of simply-support bridge transportation |
| CN109680618A (en) * | 2019-01-28 | 2019-04-26 | 中铁重工有限公司 | Steel box-girder entirety fall girder apparatus and its fall beam method |
| CN109629452A (en) * | 2019-01-30 | 2019-04-16 | 中国冶集团有限公司 | Precast beam positioning device and its method |
| CN110106787A (en) * | 2019-04-10 | 2019-08-09 | 四川雅康高速公路有限责任公司 | Bridge falls beam construction method between tunnel |
| CN210031535U (en) * | 2019-04-24 | 2020-02-07 | 中铁第五勘察设计院集团有限公司 | Simply supported box girder beam falling alignment device |
| CN111851294A (en) * | 2019-04-24 | 2020-10-30 | 中铁第五勘察设计院集团有限公司 | Simply supported box girder falling alignment device and application method thereof |
| CN110093859A (en) * | 2019-05-07 | 2019-08-06 | 中国铁道科学研究院集团有限公司铁道建筑研究所 | A kind of railway prefabricated beam falls girder system system automatically and falls beam construction method |
| CN110219242A (en) * | 2019-05-21 | 2019-09-10 | 宁波市政工程建设集团股份有限公司 | A kind of double-deck construction method of installation for synchronizing beam in beam |
| CN210886940U (en) * | 2019-07-29 | 2020-06-30 | 中铁八局集团昆明铁路建设有限公司 | Bridge segment prefabrication, assembly and initial adjustment orientation system |
| CN110304551A (en) * | 2019-08-08 | 2019-10-08 | 陕西理工大学 | Bridge Erector based on machine vision precisely falls beam wireless control system and method |
| CN111648237A (en) * | 2019-11-27 | 2020-09-11 | 泰富重工制造有限公司 | Follow-up following method for front and rear cranes of bridge girder erection machine |
| CN211815513U (en) * | 2019-12-27 | 2020-10-30 | 中铁八局集团昆明铁路建设有限公司 | Bridge supporting pad stone anchor bolt hole positioning device |
| CN111074783A (en) * | 2020-01-06 | 2020-04-28 | 苏州荣宝升城市建设有限公司 | Three-dimensional accurate alignment device, rapid bridging equipment based on self-propelled module transport vehicle and bridging method |
| CN111172885A (en) * | 2020-01-19 | 2020-05-19 | 石岩 | Steel box girder butt joint detection assembly and butt joint method |
| CN111170138A (en) * | 2020-03-12 | 2020-05-19 | 广东省建筑工程机械施工有限公司 | Accurate hoisting device and method for precast beam |
| CN111676815A (en) * | 2020-05-28 | 2020-09-18 | 中铁十局集团青岛工程有限公司 | Positioning method and positioning system for steel truss girder in-place construction |
Non-Patent Citations (8)
| Title |
|---|
| 孙国安等: "杭州湾跨海大桥7 0m预应力混凝土箱形梁架设测量控制关键技术的研究", 《铁道建筑》 * |
| 巫兴发等: "无测量塔的短线法节段预制拼装桥梁施工控制技术", 《中国港湾建设》 * |
| 庞拓等: "小半径曲线不等边异形斜箱梁预制及架设关键技术", 《市政技术》 * |
| 张红军等: "电液比例技术在DF900D型架桥机上的应用", 《工程机械》 * |
| 李敏等: "全站仪快速横断面测量***功能与试验", 《重庆交通大学学报(自然科学版)》 * |
| 考树东: "铁路架梁施工中测量技术应用", 《智能城市》 * |
| 邵志元: "单导梁架桥机架设325m小曲线铁路T梁技术研究", 《施工技术》 * |
| 陈老伍等: "确定桥梁施工平面控制网必要精度方法探究", 《中国水运(下半月)》 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112813834B (en) | 2022-12-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104060523B (en) | A kind of ultra-large type bridge box beam component, jig frame special and its assemble method | |
| CN102681553B (en) | Control method and control system for withdrawing boom of pump truck and pump truck | |
| CN201343385Y (en) | Concentrated driving finished product checking crane | |
| CN106758828B (en) | The application method of fixed asymmetric bridge girder cantilever assembly equipment | |
| CN108247280B (en) | A kind of pipeline centering method | |
| CN101348213A (en) | Mounting method of crane sliding contact line in workshop | |
| CN110526120A (en) | Vertical hydrogenerator rotor lifts auxiliary device and hanging method | |
| CN110499702A (en) | A kind of cable saddle positioning reinforcing device of Cable-stayed Bridge Pylon | |
| CN112141890A (en) | Automatic unhooking method and system for crane | |
| CN112813834B (en) | Beam piece mounting system and mounting method | |
| CN210031535U (en) | Simply supported box girder beam falling alignment device | |
| CN203938406U (en) | A kind of tower machine jacking trim monitored control system and monitor | |
| CN105710550A (en) | Splicing and welding method of large converter five-connection-rod hanging device | |
| CN110846462B (en) | Method for integrally mounting converter oxygen lance fixing rail and steel structure upright post | |
| CN104045010B (en) | A kind of tower machine jacking trim monitored control system, monitoring method and monitor | |
| CN202787085U (en) | Steel box girder large segment connection matching device with position adjusting function | |
| CN110470193B (en) | Method for monitoring relative displacement between box girder and pier | |
| CN106869319A (en) | Large span steel truss installation method | |
| CN106592446A (en) | Assembling construction method of precast segmental balanced cantilever with side-span wet joints | |
| CN101428729A (en) | Connecting apparatus and mounting method for roof truss and suspension type travelling overhead crane rails | |
| CN109306665A (en) | Large-span Oblique-crossing abnormity steel box girder pushing tow kinetic-control system and method | |
| CN103510472B (en) | A kind of can automatic deviation correction incremental launching construction guiding carriage | |
| CN101459320B (en) | Large span cable bridge rack installation mold and installation method thereof | |
| CN209178836U (en) | Large-span Oblique-crossing abnormity steel box girder pushing tow kinetic-control system | |
| CN220377132U (en) | Device for replacing steel truss girder suspension bridge support |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |