CN112267690A - Large-span box-type steel beam sliding installation construction process and device - Google Patents
Large-span box-type steel beam sliding installation construction process and device Download PDFInfo
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- CN112267690A CN112267690A CN202011019655.5A CN202011019655A CN112267690A CN 112267690 A CN112267690 A CN 112267690A CN 202011019655 A CN202011019655 A CN 202011019655A CN 112267690 A CN112267690 A CN 112267690A
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- jig frame
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
- E04G21/142—Means in or on the elements for connecting same to handling apparatus
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
- E04G21/16—Tools or apparatus
- E04G21/162—Handles to carry construction blocks
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
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- Mechanical Engineering (AREA)
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- General Physics & Mathematics (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The invention discloses a sliding installation construction process and device for a large-span box-type steel beam, and relates to the technical field of structural engineering. The upper parts of two sides of the lower end of the sliding track are provided with thick track pressing plates, the upper end of the sliding track is provided with a jig frame and a wedge-shaped clamping block in a sliding manner, two sides of the upper end of the jig frame are both fixedly provided with square steel, the upper end of the jig frame is clamped with a steel beam to be installed through the square steel, the outer surface of the steel beam to be installed is provided with a pushing lug plate, the fixed end of a hydraulic cylinder is rotatably connected with the pushing lug plate, a hydraulic crawler and a component to be slid are rigidly connected, and when the connection mode is used for a structure with larger sliding span and more pin number, the synchronism control of each sliding (pushing) point is better, the problem of low steel beam positioning accuracy is solved, and the assembly and the accumulated sliding of each unit structure can be simultaneously constructed without mutual influence, and the absolute time of hydraulic sliding operation is shorter, so that the installation period of the roof box girder can be effectively ensured.
Description
Technical Field
The invention relates to the technical field of structural engineering, in particular to a sliding installation construction process and device for a large-span box-type steel beam.
Background
With the enhancement of national economic strength and the requirement of social development, large-scale industrial and public buildings such as large-span industrial plants, waiting halls, convention and exhibition centers, theaters, stadiums and the like continuously emerge, and spatial steel structures are developed unprecedentedly and are widely applied. Especially in the construction of factory buildings and venues with large spaces, the large-span steel beams are adopted for the full length of the roof, especially the industrial factory buildings and venues with steel structure roofs have short construction period due to the fact that the whole construction structure is light (compared with a concrete structure), and the problem that the spans of a plurality of industrial factory buildings are large can be solved, so that the large-span steel structure is more and more commonly applied. But the dead weight of large-span girder steel is great, and length is longer, and the installation accuracy requires highly, and these problems are all the difficulty that large-span girder steel installation faced. If the mode of hoisting the steel beams one by one in place is adopted, the method has difficulties in operability (large crane standing area is needed for hoisting by a large truck crane, and the operation is difficult), safety (large crane boom extension range and large potential safety hazard), economy (high hoisting cost of the large crane) and construction period guarantee (large crane boom extension and boom extension speed, slow landing leg entering and long assembly time).
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a large-span box-type steel beam sliding installation construction process and a large-span box-type steel beam sliding installation construction device, which solve the problems that the large-span steel beam has large self weight, long length and high installation precision requirement, and the problems are all the difficulties in large-span steel beam installation. If the mode of hoisting the steel beams one by one in place is adopted, the problems of difficult operability (large crane standing area and difficult control due to the fact that large truck cranes are needed for hoisting, large potential safety hazards, high safety hazard), economy (high hoisting cost of the large cranes) and construction period guarantee (slow boom extension and rotating arm speed of the large cranes, long time for landing legs and assembling during entering a field) are solved.
In order to achieve the purpose, the invention is realized by the following technical scheme: a sliding installation construction process for a large-span box-type steel beam comprises the following steps:
s1, preparing the assembly: preparing a creeper driver assembly;
s2, debugging and installing components: installing the prepared creeper driver assembly in step S1 at the corresponding location;
s3, equipment operation: the creeper driver assembly having been mounted in step S2 is driven to complete the operation.
According to the large-span box-type steel beam sliding installation construction device, the crawling driver assembly comprises a sliding rail, a hydraulic oil cylinder and a computer control system, thick rail pressing plates are arranged on the upper portions of two sides of the lower end of the sliding rail, a jig frame and a wedge-shaped clamping block are arranged on the upper end of the sliding rail in a sliding mode, square steel is fixedly arranged on two sides of the upper end of the jig frame, the steel beam to be installed is clamped at the position of the upper end of the jig frame through the square steel, a pushing lug plate is arranged on the outer surface of the steel beam to be installed, the fixed end of the hydraulic oil cylinder is connected with the pushing lug plate in a rotating mode, the moving end of the hydraulic oil cylinder is connected with the side wall of the wedge-shaped clamping block in a rotating mode, a sensor is arranged on the outer surface of the.
Preferably, the jig frame and the square steel form a sliding jig frame device.
Preferably, the wedge-shaped clamping block is a component with a one-way self-locking structure.
Preferably, the wedge-shaped clamping block, the hydraulic oil cylinder, the pushing lug plate, the steel beam to be installed, the sensor and the jig frame form a sliding driving device.
Preferably, the bottom of the jig frame and the bottom of the wedge-shaped clamping block are matched with the upper side of the sliding rail.
In summary, thick rail pressing plates are arranged at the upper parts of two sides of the lower end of the sliding rail, a jig frame and a wedge-shaped clamping block are arranged at the upper end of the sliding rail in a sliding manner, square steel is fixedly arranged at two sides of the upper end of the jig frame, a steel beam to be installed is clamped at the upper end of the jig frame through the square steel, a pushing lug plate is arranged on the outer surface of the steel beam to be installed, the fixed end of a hydraulic cylinder is rotatably connected with the pushing lug plate, the moving end of the hydraulic cylinder is rotatably connected with the side wall of the wedge-shaped clamping block, a sensor is arranged on the outer surface of the hydraulic cylinder, the sensor is electrically connected with a computer control system through a transmission signal, and a hydraulic crawler and a component to be slid are rigidly connected in a rigid connection mode, wherein when the connection mode is used for a structure with large sliding span and large number of pin members, the synchronous control of each, the assembly and the accumulated sliding of each unit structure can be simultaneously constructed without mutual influence, and the absolute time of hydraulic sliding operation is short, so that the installation period of the roof box girder can be effectively ensured;
the propulsion and the speed of the hydraulic crawlers are detected by a computer system through a sensor, the coordination and synchronization among the crawlers are controlled, when accidental overload or synchronization out-of-tolerance exists, the system can timely make adjustment and send out alarm signals, the falling condition of two ends of a steel beam due to different propulsion speeds can be effectively solved, and the sliding process is safer and more reliable;
the wedge-shaped clamping block of the hydraulic crawler has a one-way self-locking function, when the hydraulic oil cylinder extends out, the wedge-shaped clamping block works to automatically lock the sliding track, so that the other end of the hydraulic oil cylinder pushes the whole jig frame to force the whole jig frame to displace along the sliding track, when the hydraulic oil cylinder retracts, the wedge-shaped clamping block stops working, the moving advancing direction of the wedge-shaped clamping block along the sliding track is consistent with the moving advancing direction of the jig frame main body, and then the wedge-shaped clamping block circularly reciprocates and integrally moves;
the wedge-shaped clamping block of the hydraulic crawler has a one-way self-locking function, when the hydraulic oil cylinder extends out, the wedge-shaped clamping block works to automatically lock the sliding track, so that the other end of the hydraulic oil cylinder pushes the whole jig frame to force the whole jig frame to displace along the sliding track, when the hydraulic oil cylinder retracts, the wedge-shaped clamping block stops working, the moving advancing direction of the wedge-shaped clamping block along the sliding track is consistent with the moving advancing direction of the jig frame main body, and then the wedge-shaped clamping block circularly reciprocates and integrally moves;
the propulsion and the speed of each advancing part are detected through the sensors, the coordination and synchronization among the parts are controlled, when accidental overload or synchronization out-of-tolerance exists, the system can timely make adjustment and send out alarm signals to prevent the two ends of the steel beam from falling due to different propulsion speeds, and the computer control system can fully automatically realize a plurality of functions such as certain synchronous action, load balancing, posture correction, stress control, operation locking, process display, fault alarm and the like through data feedback and control instruction transmission.
Advantageous effects
The invention provides a sliding installation construction process and device for a large-span box-type steel beam. Compared with the prior art, the method has the following beneficial effects:
1. a construction process and a device for installing a large-span box-shaped steel beam in a sliding way are characterized in that thick rail pressing plates are arranged at the upper parts of two sides of the lower end of a sliding rail, a jig frame and a wedge-shaped clamping block are arranged at the upper end of the sliding rail in a sliding way, square steel is fixedly arranged on two sides of the upper end of the jig frame, the steel beam to be installed is clamped at the upper end of the jig frame through the square steel, a pushing lug plate is arranged on the outer surface of the steel beam to be installed, the fixed end of a hydraulic oil cylinder is rotatably connected with the pushing lug plate, the moving end of the hydraulic oil cylinder is rotatably connected with the side wall of the wedge-shaped clamping block, a sensor is arranged on the outer surface of the hydraulic oil cylinder, the sensor is electrically connected with a computer control system through transmission signals, a rigid connection mode is adopted between a hydraulic crawler and a component to be slid, and the connection mode has, the problem of low accuracy of steel beam in place is solved, the assembling and accumulated sliding of each unit structure can be simultaneously constructed without mutual influence, and the hydraulic sliding operation is short in absolute time, so that the installation period of the roof box girder can be effectively guaranteed.
2. The utility model provides a large-span box girder steel installation construction technology and device that slides, detects hydraulic pressure crawl device's propulsive force and speed through the sensor through computer system, and the coordination synchronization between each crawl device of control, when unexpected overload or synchronous out-of-tolerance, the system can make the adjustment in time and send alarm signal, can effectively solve the girder steel both ends and take place the condition of falling because of the propulsive speed differs to make the process of sliding safe and reliable more.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a front view of the present invention;
fig. 3 is a side view of the structure of the present invention.
In the figure: 1. a sliding track; 2. a wedge-shaped clamping block; 3. a hydraulic cylinder; 4. pushing the lug plate; 5. a steel beam is to be installed; 6. a sensor; 7. a jig frame; 8. a computer control system; 9. a thick rail platen; 10. and (4) square steel.
Detailed Description
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 only a part of the embodiments of the present invention, and not all of the embodiments. 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.
Referring to fig. 1-3, a sliding installation construction process of a large-span box-type steel beam includes the following steps:
s1, preparing the assembly: preparing a creeper driver assembly;
s2, debugging and installing components: installing the prepared creeper driver assembly in step S1 at the corresponding location;
s3, equipment operation: the creeper driver assembly having been mounted in step S2 is driven to complete the operation.
According to the construction device for the large-span box-type steel beam sliding installation, the crawling driver assembly comprises a sliding rail 1, a hydraulic oil cylinder 3 and a computer control system 8, thick rail pressing plates 9 are arranged at the upper parts of two sides of the lower end of the sliding rail 1, a jig frame 7 and a wedge-shaped clamping block 2 are arranged at the upper end of the sliding rail 1 in a sliding mode, the wedge-shaped clamping block 2 is a component with a one-way self-locking structure, square steel 10 is fixedly arranged at two sides of the upper end of the jig frame 7, the jig frame 7 and the square steel 10 form the sliding jig frame device, the steel beam 5 to be installed is clamped at the upper end of the jig frame 7 through the square steel 10, a pushing lug plate 4 is arranged on the outer surface of the steel beam 5 to be installed, the fixed end of the hydraulic oil cylinder 3 is connected with the pushing lug plate 4 in a rotating mode, the moving end of the, the sensor 6 is electrically connected with the computer control system 8 through transmission signals, the bottom of the jig frame 7 and the bottom of the wedge-shaped clamping block 2 are matched with the upper side of the sliding track 1, and the wedge-shaped clamping block 2, the hydraulic oil cylinder 3, the pushing lug plate 4, the steel beam 5 to be installed, the sensor 6 and the jig frame 7 form sliding driving equipment.
When the hydraulic crawler is used, the wedge-shaped clamping block 2 of the hydraulic crawler has a one-way self-locking function, when the hydraulic oil cylinder 3 extends out, the wedge-shaped clamping block 2 works to automatically lock the sliding track 1, so that the other end of the hydraulic oil cylinder 3 pushes the whole jig frame 7 to force the whole jig frame 7 to displace along the sliding track 1, when the hydraulic oil cylinder 3 retracts, the wedge-shaped clamping block 2 stops working, the moving direction of the wedge-shaped clamping block along the sliding track 1 is consistent with the moving direction of the jig frame 7 before the main body, and then the wedge-shaped clamping block circularly reciprocates and integrally moves;
meanwhile, the propelling force and the speed of each advancing part are detected through the sensor 6, the coordination and synchronization among the parts are controlled, when accidental overload or synchronous over-error occurs, the system can timely make adjustment and send out alarm signals to prevent the two ends of the steel beam from falling due to different propelling speeds, and the computer control system 8 can fully automatically realize a plurality of functions such as certain synchronous action, load balancing, posture correction, stress control, operation locking, process display, fault alarm and the like through data feedback and control instruction transmission.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a large-span box girder steel installation construction equipment that slides, includes the driver assembly of crawling, its characterized in that: the crawling driver assembly comprises a sliding rail (1), a hydraulic oil cylinder (3) and a computer control system (8), thick rail pressing plates (9) are arranged at the upper parts of two sides of the lower end of the sliding rail (1), a jig frame (7) and a wedge-shaped clamping block (2) are arranged at the upper end of the sliding rail (1) in a sliding mode, square steel (10) is fixedly arranged on two sides of the upper end of the jig frame (7), a steel beam (5) to be installed is clamped at the upper end of the jig frame (7) through the square steel (10), a pushing lug plate (4) is arranged on the outer surface of the steel beam (5) to be installed, the fixed end of the hydraulic oil cylinder (3) is rotatably connected with the pushing lug plate (4), the moving end of the hydraulic oil cylinder (3) is rotatably connected with the side wall of the wedge-shaped clamping block (2), a sensor (6) is arranged on the outer surface, the sensor (6) is electrically connected with the computer control system (8) through transmission signals.
2. The large-span box-type steel beam sliding installation construction device of claim 1, which is characterized in that: the jig frame (7) and the square steel (10) form a sliding jig frame device.
3. The large-span box-type steel beam sliding installation construction device of claim 1, which is characterized in that: the wedge-shaped clamping block (2) is a component with a one-way self-locking structure.
4. The large-span box-type steel beam sliding installation construction device of claim 1, which is characterized in that: the wedge-shaped clamping blocks (2), the hydraulic oil cylinders (3), the pushing lug plates (4), the steel beam (5) to be installed, the sensor (6) and the jig frame (7) form sliding driving equipment.
5. The large-span box-type steel beam sliding installation construction device of claim 1, which is characterized in that: the bottom of the jig frame (7) and the bottom of the wedge-shaped clamping block (2) are matched with the upper side of the sliding track (1).
6. The utility model provides a large-span box girder steel installation construction technology that slides which characterized in that: the method comprises the following steps:
s1, preparing the assembly: preparing a creeper driver assembly;
s2, debugging and installing components: installing the prepared creeper driver assembly in step S1 at the corresponding location;
s3, equipment operation: the creeper driver assembly having been mounted in step S2 is driven to complete the operation.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011019655.5A CN112267690A (en) | 2020-09-24 | 2020-09-24 | Large-span box-type steel beam sliding installation construction process and device |
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| CN202011019655.5A CN112267690A (en) | 2020-09-24 | 2020-09-24 | Large-span box-type steel beam sliding installation construction process and device |
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| CN202011019655.5A Pending CN112267690A (en) | 2020-09-24 | 2020-09-24 | Large-span box-type steel beam sliding installation construction process and device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113216647A (en) * | 2021-04-30 | 2021-08-06 | 中建四局第六建设有限公司 | High-altitude circular sliding device for roof with oval steel structure and construction method of high-altitude circular sliding device |
| CN113502742A (en) * | 2021-05-20 | 2021-10-15 | 中铁四局集团建筑工程有限公司 | Pushing construction method for steel-structured passenger overbridge crossing business line |
| CN114214913A (en) * | 2022-02-08 | 2022-03-22 | 华神建设集团有限公司 | Large-span large-section steel beam and construction method |
| CN114562116A (en) * | 2022-04-11 | 2022-05-31 | 中国建筑第四工程局有限公司 | Sliding jig frame for temporary support of steel roof and using method thereof |
| CN117230979A (en) * | 2023-11-15 | 2023-12-15 | 广东粤驰建工科技集团有限公司 | Running mechanism for hanging basket of hanging Liang Duo main truss |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103806658A (en) * | 2012-11-14 | 2014-05-21 | 五冶集团上海有限公司 | Whole high-cleanliness electronic plant steel structure slippage and detachment method |
| CN103938880A (en) * | 2014-03-31 | 2014-07-23 | 中冶天工上海十三冶建设有限公司 | Overall sliding construction method for large-span special-shaped space grid pipe truss |
| US9255416B1 (en) * | 2015-03-02 | 2016-02-09 | Eric Snell | Construction hoist system |
| CN108468430A (en) * | 2018-03-12 | 2018-08-31 | 成都建筑工程集团总公司 | The not contour bearing steel truss structure hoisting slide construction of large span |
| CN111533064A (en) * | 2020-07-07 | 2020-08-14 | 上海建工集团股份有限公司 | Single-wedge locking self-propelled pushing device and method |
-
2020
- 2020-09-24 CN CN202011019655.5A patent/CN112267690A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103806658A (en) * | 2012-11-14 | 2014-05-21 | 五冶集团上海有限公司 | Whole high-cleanliness electronic plant steel structure slippage and detachment method |
| CN103938880A (en) * | 2014-03-31 | 2014-07-23 | 中冶天工上海十三冶建设有限公司 | Overall sliding construction method for large-span special-shaped space grid pipe truss |
| US9255416B1 (en) * | 2015-03-02 | 2016-02-09 | Eric Snell | Construction hoist system |
| CN108468430A (en) * | 2018-03-12 | 2018-08-31 | 成都建筑工程集团总公司 | The not contour bearing steel truss structure hoisting slide construction of large span |
| CN111533064A (en) * | 2020-07-07 | 2020-08-14 | 上海建工集团股份有限公司 | Single-wedge locking self-propelled pushing device and method |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113216647A (en) * | 2021-04-30 | 2021-08-06 | 中建四局第六建设有限公司 | High-altitude circular sliding device for roof with oval steel structure and construction method of high-altitude circular sliding device |
| CN113502742A (en) * | 2021-05-20 | 2021-10-15 | 中铁四局集团建筑工程有限公司 | Pushing construction method for steel-structured passenger overbridge crossing business line |
| CN114214913A (en) * | 2022-02-08 | 2022-03-22 | 华神建设集团有限公司 | Large-span large-section steel beam and construction method |
| CN114214913B (en) * | 2022-02-08 | 2024-02-20 | 华神建设集团有限公司 | Large-span large-section steel girder and construction method |
| CN114562116A (en) * | 2022-04-11 | 2022-05-31 | 中国建筑第四工程局有限公司 | Sliding jig frame for temporary support of steel roof and using method thereof |
| CN114562116B (en) * | 2022-04-11 | 2024-03-01 | 中国建筑第四工程局有限公司 | Sliding jig frame for temporary support of steel roof and use method of sliding jig frame |
| CN117230979A (en) * | 2023-11-15 | 2023-12-15 | 广东粤驰建工科技集团有限公司 | Running mechanism for hanging basket of hanging Liang Duo main truss |
| CN117230979B (en) * | 2023-11-15 | 2024-01-30 | 广东粤驰建工科技集团有限公司 | Running mechanism for hanging basket of hanging Liang Duo main truss |
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Application publication date: 20210126 |
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