CN112160619A - Dismantling system and construction method for ultrahigh steel pipe concrete structure - Google Patents

Dismantling system and construction method for ultrahigh steel pipe concrete structure Download PDF

Info

Publication number
CN112160619A
CN112160619A CN202010968248.2A CN202010968248A CN112160619A CN 112160619 A CN112160619 A CN 112160619A CN 202010968248 A CN202010968248 A CN 202010968248A CN 112160619 A CN112160619 A CN 112160619A
Authority
CN
China
Prior art keywords
steel pipe
climbing
cutting device
moving
concrete structure
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.)
Pending
Application number
CN202010968248.2A
Other languages
Chinese (zh)
Inventor
秦洪果
杨雄
李萍
李旺平
成昭
张智超
石岩
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Lanzhou University of Technology
Original Assignee
Lanzhou University of Technology
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Lanzhou University of Technology filed Critical Lanzhou University of Technology
Priority to CN202010968248.2A priority Critical patent/CN112160619A/en
Publication of CN112160619A publication Critical patent/CN112160619A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G23/00Working measures on existing buildings
    • E04G23/08Wrecking of buildings
    • E04G23/082Wrecking of buildings using shears, breakers, jaws and the like
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G23/00Working measures on existing buildings
    • E04G23/08Wrecking of buildings
    • E04G23/081Wrecking of buildings using hydrodemolition

Abstract

The invention discloses a system for dismantling an ultrahigh steel pipe concrete structure and a construction method thereof. The climbing device comprises a climbing flipper, a climbing device component, a connecting rod and an operation command processing device; the mobile device comprises a mobile foot, a mobile device component, a connecting rod and an operation command processing device; the cutting device comprises a cutting device assembly, a water jet head, a water pipe and an operation command processing device; the operation command processing device adopts a stm32 singlechip and is embedded in the cutting device, the climbing device and the moving device; the cutting device is connected with the climbing device or the moving device through bolts. Ultrahigh steel pipe concrete structure demolishs system belongs to civil engineering field, and the construction is convenient, and the efficiency of construction is high, green.

Description

Dismantling system and construction method for ultrahigh steel pipe concrete structure
Technical Field
The invention relates to a dismantling system and a construction method of an ultrahigh steel pipe concrete structure, belongs to the field of civil engineering, and is suitable for dismantling the ultrahigh steel pipe concrete structure or the ultrahigh steel pipe structure.
Background
In recent years, with the enhancement of economic strength of China, the capital construction scale is continuously enlarged, and various ultrahigh structures are developed like bamboo shoots in spring after rain. The steel pipe concrete structure is a novel combined structure and has good compression resistance, shock resistance and impact resistance; the steel pipe concrete structure has large span, high strength, good plasticity, fatigue resistance and simple construction; meanwhile, the structure can greatly reduce the construction cost and shorten the construction period; compared with other structures, the stability and safety of the steel pipe concrete structure are also excellent. Therefore, the steel pipe concrete structure is widely applied to various projects in China. However, many temporary steel pipe concrete structures or old steel pipe concrete structures need to be dismantled and resources recovered in time as time goes on, and the dismantling process requires safety of constructors, has high construction efficiency, and can recover materials such as steel pipes. Thereby better serving society.
In the process of dismantling the ultrahigh steel pipe concrete structure, the problems of high steel pipe cutting difficulty, high manual investment in the dismantling process, low resource recovery rate, poor economy, poor personnel safety in the construction process and the like are often encountered.
Disclosure of Invention
In order to solve the technical problem, the invention provides a system for dismantling an ultrahigh steel pipe concrete structure, which comprises four parts, namely a climbing device, a moving device, a cutting device and an operating platform; a climbing device and a cutting device are arranged outside the steel pipe concrete member, and the climbing device and the cutting device are connected together by bolts by utilizing a class II connecting rod and a class III connecting rod to cut off the steel pipe concrete member; and a moving device and a cutting device are arranged outside the concrete filled steel tube member, and the moving device and the cutting device are connected together by bolts by utilizing a class II connecting rod and a class III connecting rod to cut the concrete filled steel tube member.
Preferably, the cutting device comprises a cutting device component, a high-pressure water jet cutter, a class I connecting rod and a single chip microcomputer embedded in the cutting device component; 4 high-pressure water sword cutters are fixed on 4 cutting device subassemblies, and 4 cutting device subassemblies and 4I type connecting rods adopt the bolt to install outside the steel pipe concrete structure.
Preferably, the mobile device comprises a first mobile device component, a second mobile device component, a mobile pin and a single chip microcomputer embedded in the second mobile device component; the concrete pipe concrete structure comprises a first moving device assembly, a second moving device assembly and a moving foot, wherein the first moving device assembly and the second moving device assembly are installed outside the concrete pipe structure through bolts, and the moving foot is adjusted to enable the moving devices to be attached to the outer wall of a steel pipe.
Preferably, the moving foot comprises a class I high-strength screw, a spring, a ball support and a ball, the ball is located on the ball support, the ball support is located at the front end of the class I high-strength screw, the class I high-strength screw penetrates through the moving device assembly or the moving device assembly, and the spring is arranged between the rear end of the class I high-strength screw and the moving device assembly or the moving device assembly.
Preferably, the climbing device comprises a climbing device component, a VI type connecting rod, a climbing flipper and a singlechip embedded in the VI type connecting rod; the 3 VI connecting rods are arranged in the track of the climbing device assembly, the 4 climbing device assemblies are arranged outside the steel pipe concrete structure through the lug plates by bolts, and the climbing device can be fixed on the outer wall of the steel pipe by adjusting the climbing flippers.
Preferably, the climbing flipper consists of a spring, a class II high-strength screw rod, a rotary joint ball and a fixed rubber support, the fixed rubber support is arranged at the front end of the class II high-strength screw rod through the rotary joint ball, the class II high-strength screw rod radially penetrates through the climbing device assembly, the fixed rubber support is in contact with the outside of the steel pipe concrete structure, and the spring is arranged between the rear end of the class II high-strength screw rod and the outside of the climbing device assembly.
The construction method for dismantling the ultrahigh steel pipe concrete structure comprises the following steps: step one, installing a hoisting device;
step two, installing an operation platform: an operation platform is installed at a position which is convenient to construct and high in safety;
step three, mounting a climbing device: fixing the assembly climbing device component on a steel pipe upright post to be dismantled through a bolt;
step four, installing a cutting device: assembled through a connecting rod and connected with a climbing device;
fifthly, evacuating the personnel to a safe area, operating the cutting device to cut the steel pipe, matching with a crane, and lifting the part separated from the main body to the ground;
step six, dismantling a disassembling tool: sequentially dismantling each component according to the reverse order during installation;
seventhly, if the ultrahigh steel pipe concrete comprises steel pipe cross braces, inclined braces and other members, removing the cross braces, the inclined braces and other members by using the steps;
step eight, mounting a moving device, flattening the concrete filled steel tube stand column, and assembling all components through bolts;
step nine, installation of a cutting device: is connected with the mobile device through a connecting rod;
step ten, spirally cutting the steel tube stand column along the column direction, and separating the steel tube and the concrete in the steel tube.
The steel pipe concrete structure dismantling system comprises a main body, a climbing device, a moving device, a cutting device and an operating platform. The climbing device comprises a climbing flipper, a climbing device component, a connecting rod and an operation command processing device; the mobile device comprises a mobile foot, a mobile device component, a connecting rod and an operation command processing device; the cutting device comprises a cutting device assembly, a water jet head, a cutting depth sensor and an operation command processing device; the operation command processing device adopts a singlechip and is embedded in the cutting device, the climbing device and the moving device; the cutting device is connected with the climbing device or the moving device through bolts.
The invention has the beneficial effects that:
(1) the invention can be provided with a numerical control remote operation system, so that an operation interface is separated from a machine working interface, the safety in steel pipe dismantling construction operation is improved, and the safety of constructors is effectively ensured.
(2) The invention can be assembled and combined freely with modular design of each component, and is convenient and simple to operate.
(3) The invention adopts four symmetrically arranged water knives to cut the steel pipe, and has high working efficiency, safety and reliability.
(4) And in the stripping process of the steel pipe and the concrete, the steel pipe and the concrete are easier to separate due to the action of spiral cutting and water pressure.
Drawings
The invention is further described below with reference to the accompanying drawings:
FIG. 1 is a schematic structural view of a demolition system for an ultra-high steel pipe concrete structure according to the present invention;
FIG. 2 is a schematic structural view of a cutting device;
FIG. 3 is a detailed view of the cutting device assembly;
FIG. 4 is a detailed structure diagram of the connection between the cutting device and the class I connecting rod;
FIG. 5 is a sectional view of the cutting device;
FIG. 6 is a diagram illustrating an overall structure of the mobile device;
FIG. 7 is a detailed structure diagram of components of the mobile device;
FIG. 8 is a detailed structure diagram of the second component of the mobile device;
FIG. 9 is a cross-sectional view of the mobile device;
FIG. 10 is a detailed view of the movable foot;
FIG. 11 is a view showing the overall structure of the climbing device;
FIG. 12 is a detailed view of the climbing device assembly;
FIG. 13 is a detailed view of a type VI connecting rod;
FIG. 14 is a detailed view of the fin;
FIG. 15 is a sectional view of the climbing device;
fig. 16 is a layout diagram of the device on various types of steel pipe structures.
In the figure: 1. a cutting device assembly; 2. a high-pressure water jet cutter; 3. a class I connecting rod; 4. a bolt; 5. a class II connecting rod; 6. moving a first component of a device; 7. a moving device; 8. a class III connecting rod; 9. a moving foot; 10. a climbing device assembly; 11. a class VI connecting rod; 12. climbing the flippers; 13. a class I high-strength screw; 14. a spring; 15. a ball bearing; 16. a ball bearing; 17. a class II high-strength screw; 18. rotating the cross-connecting ball; 19. fixing a rubber support; 20. an ear plate; 21. rotating the ball; 22. a cutting device; 23. a mobile device; 24. a climbing device; 25. and a single chip microcomputer.
Detailed Description
The present invention will be further described with reference to the following examples. The following examples are set forth merely to aid in the understanding of the invention. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
As shown in fig. 1 to 16, the present invention discloses a system for demolishing an ultra-high steel pipe concrete structure, comprising: cutting device 22, moving device 23, climbing device 24; the climbing device 24 and the cutting device 22 are arranged outside the steel pipe concrete member, the climbing device 24 and the cutting device 22 are connected together by the type II connecting rod 5 and the type III connecting rod 8 through the bolt 4, and the steel pipe concrete member is cut off; then, a moving device 23 and a cutting 00000 device 22 are installed outside the concrete filled steel tube member, the moving device 23 and the cutting device 22 are connected together by a bolt 4 through a II-type connecting rod 5 and a III-type connecting rod 8, and the concrete filled steel tube member is cut;
the cutting device 22 comprises a cutting device component 1, a high-pressure water jet cutter 2, a class I connecting rod 3 and a singlechip 25 embedded in the cutting device component 1; 4 high-pressure water jet cutter tools 2 are fixed on the 4 cutting device assemblies 1, and then the 4 cutting device assemblies 1 and the 4I-type connecting rods 3 are arranged outside the steel pipe concrete structure by bolts 4;
the moving device 23 comprises a moving device assembly 6, a moving device assembly 7, a moving foot 9 of 0000000000000000000 consisting of a class I high-strength screw 13, a spring 14, a ball support 15 and balls 16, and a single chip microcomputer 25 embedded in the moving device assembly 7; fixing a moving foot 9 on a moving device (I) component 6 and a moving device (II) component 7, then installing the moving device (I) component 6 and the moving device (II) component 7 outside the steel pipe concrete structure by adopting a bolt 4, and adjusting the moving foot 9 to enable a moving device 23 to be attached to the outer wall of the steel pipe;
the climbing device 24 comprises a climbing device component 10, a VI type connecting rod 11, a climbing flipper 12 consisting of a spring 14, a II type high-strength screw rod 17, a rotary joint ball 18 and a fixed rubber support 19, and a singlechip 25 embedded in the VI type connecting rod 11; installing 3 VI connecting rods 11 in the tracks of the climbing device assembly 10, then installing 4 climbing device assemblies 10 outside the steel pipe concrete structure through the lug plates 20 by adopting bolts 4, and adjusting the climbing flippers 12 to fix the climbing device 24 on the outer wall of the steel pipe;
the cutting device assembly 1, the moving device assembly 7 and the VI type connecting rod 11 are embedded with a single chip microcomputer 25.
The cutting device 22 is connected with the moving device 23 or the climbing device 24 by the type II connecting rod 5 and the type III connecting rod 8 through the bolt 4.
The construction method for dismantling the ultra-high steel pipe concrete structure comprises the following steps:
step one, installing a hoisting device: reasonably arranging hoisting points on the concrete-filled steel tube column, and installing hoisting steel ropes and other hoisting auxiliary tools;
step two, installing an operation platform: an operation platform is installed at a position which is convenient to construct and high in safety;
step three, mounting the climbing device 24: installing a type VI connecting rod 11 in a track of the climbing device assembly 10, assembling and fixing 4 climbing device assemblies 10 on a steel pipe upright post to be dismantled through bolts 4, and screwing a type II high-strength screw rod 17;
step four, installing a cutting device 22: the 4 cutting device assemblies 1 are combined and fixed around the steel pipe through bolts 4 and are respectively connected with 2 II- type connecting rods 5 and 1 III-type connecting rod 8; 2 II- type connecting rods 5 and 1 III-type connecting rod 8 are respectively connected with 3 VI-type connecting rods 11;
fifthly, evacuating personnel to a safe area, and operating a cutting device to cut the steel pipe; the cutting time and the water pressure strength value of the water jet cutter are comprehensively considered to ensure that the whole cut surface is completely cut through. Then the hoisting machine is matched to hoist the part separated from the main body to the ground;
step six, dismantling a disassembling tool: sequentially dismantling each component according to the reverse order during installation;
seventhly, if the ultrahigh steel pipe concrete structure has steel pipe cross braces, inclined braces and other members, removing the cross braces, the inclined braces and other members by using the steps;
step eight, installing the mobile device 23: flattening the steel pipe concrete upright column, fixing 2 moving devices (i.e. the component 6) and 1 moving device (i.e. the component 7) around the steel pipe through bolts 4, and screwing the class I high-strength screw 13;
step nine, installing a cutting device 22: connecting the assembly 1 of the cutting device with 2 II-class connecting rods 5 and III-class connecting rods 8 through bolts 4; then combining and fixing 4 cutting device assemblies 1 around the steel pipe through bolts 4;
and step ten, spirally cutting the steel tube stand column along the column direction through numerical control or manual operation, and separating the steel tube and the concrete in the steel tube.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. 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 (7)

1. The system for dismantling the ultra-high steel pipe concrete structure is characterized by comprising four parts, namely a climbing device (24), a moving device (23), a cutting device (22) and an operating platform; a climbing device (24) and a cutting device (22) are arranged outside the steel pipe concrete member, the climbing device (24) and the cutting device (22) are connected together by a type II connecting rod (5) and a type III connecting rod (8) through bolts (4), and the steel pipe concrete member is cut off; a moving device (23) and a cutting device (22) are installed outside the concrete filled steel tube member, the moving device (23) and the cutting device (22) are connected together through a bolt (4) by utilizing a class II connecting rod (5) and a class III connecting rod (8), and the concrete filled steel tube member is cut.
2. The system for demolishing an ultra-high steel pipe concrete structure according to claim 1, wherein: the cutting device (22) comprises a cutting device component (1), a high-pressure water jet cutter (2), a class I connecting rod (3) and a single chip microcomputer (25) embedded in the cutting device component (1); 4 high-pressure water jet cutter (2) are fixed on 4 cutting device assemblies (1), and 4 cutting device assemblies (1) and 4I-type connecting rods (3) are arranged outside the steel pipe concrete structure by bolts (4).
3. The system for demolishing an ultra-high steel pipe concrete structure according to claim 1, wherein: the moving device (23) comprises a moving device assembly (6), a moving device assembly (7), moving feet (9) and a single chip microcomputer (25) embedded in the moving device assembly (7); the moving device (6) and the two moving devices (7) are arranged outside the steel pipe concrete structure by bolts (4), and the moving device (23) can be attached to the outer wall of the steel pipe by adjusting the moving foot (9).
4. The system for demolishing an ultra-high steel pipe concrete structure according to claim 3, wherein: the moving foot (9) is composed of a class I high-strength screw (13), a spring (14), a ball support (15) and balls (16), the balls (16) are located on the ball support (15), the ball support (15) is located at the front end of the class I high-strength screw (13), the class I high-strength screw (13) penetrates through a moving device (6) or a moving device (7), and the spring (14) is arranged between the rear end of the class I high-strength screw (13) and the moving device (6) or the moving device (7).
5. The system for demolishing an ultra-high steel pipe concrete structure according to claim 1, wherein: the climbing device (24) comprises a climbing device component (10), a VI type connecting rod (11), a climbing fin (12) and a singlechip (25) embedded in the VI type connecting rod (11); 3 VI connecting rods (11) are arranged in a track of the climbing device assembly (10), 4 climbing device assemblies (10) are arranged outside the steel pipe concrete structure through ear plates (20) by adopting bolts (4), and the climbing device (24) can be fixed on the outer wall of the steel pipe by adjusting the climbing flippers (12).
6. The system for demolishing an ultra-high steel pipe concrete structure according to claim 5, wherein: the climbing flipper (12) is composed of a spring (14), a class II high-strength screw (17), a rotary joint ball (18) and a fixed rubber support (19), the fixed rubber support (19) is installed at the front end of the class II high-strength screw (17) through the rotary joint ball (18), the class II high-strength screw (17) radially penetrates through the climbing device assembly (10), the fixed rubber support (19) is in contact with the outer part of a steel pipe concrete structure, and the spring (14) is arranged between the rear end of the class II high-strength screw (17) and the outer side of the climbing device assembly (10).
7. The construction method of the demolition system of an ultra-high steel reinforced concrete structure of claims 1 to 6, characterized in that: the method comprises the following steps:
step one, installing a hoisting device: arranging hoisting points on the concrete-filled steel tube stand column, and installing hoisting steel wire ropes and other hoisting auxiliary tools;
step two, installing an operation platform;
step three, mounting a climbing device (24): installing a VI type connecting rod (11) in a track of the climbing device assembly (10), assembling and fixing 4 climbing device assemblies (10) around a steel pipe upright post to be dismantled through bolts (4), and screwing a II type high-strength screw rod (17) to fix a climbing device (24) on the steel pipe;
step four, installing a cutting device (22): 4 cutting device assemblies (1) are combined and fixed around the steel pipe through bolts (4) and are respectively connected with 2 II-type connecting rods (5) and 1 III-type connecting rod (8); 2 II-type connecting rods (5) and 1 III-type connecting rod (8) are respectively connected with 3 VI-type connecting rods (11); the 3 VI connecting rods (11) are connected with the 4 climbing device components (10);
fifthly, evacuating personnel to a safe area, and operating a cutting device to cut the steel pipe; the whole cut surface is ensured to be completely cut through according to the cutting time and the water pressure strength value of the water jet; then the hoisting machine is matched to hoist the part separated from the main body to the ground;
step six, dismantling a disassembling tool: sequentially dismantling each component according to the reverse order during installation;
seventhly, if the ultrahigh steel pipe concrete structure has steel pipe cross braces, inclined braces and other members, removing the cross braces, the inclined braces and other members by using the steps;
step eight, installing a moving device (23): flattening the steel pipe concrete upright column, combining 2 moving devices (6) and 1 moving device (7) around the steel pipe through bolts (4), and screwing the I-type high-strength screw (13) to fix the moving device (23) outside the steel pipe;
step nine, installing a cutting device (22): connecting the assembly (1) of the cutting device I with the assembly (5) of the cutting device 2 and a III-type connecting rod (8) through bolts (4); then the 4 cutting device assemblies (1) are combined and fixed on the outer side of the steel pipe through bolts (4);
and step ten, spirally cutting the steel tube stand column along the column direction through numerical control or manual operation, and separating the steel tube and the concrete in the steel tube.
CN202010968248.2A 2020-09-15 2020-09-15 Dismantling system and construction method for ultrahigh steel pipe concrete structure Pending CN112160619A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010968248.2A CN112160619A (en) 2020-09-15 2020-09-15 Dismantling system and construction method for ultrahigh steel pipe concrete structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010968248.2A CN112160619A (en) 2020-09-15 2020-09-15 Dismantling system and construction method for ultrahigh steel pipe concrete structure

Publications (1)

Publication Number Publication Date
CN112160619A true CN112160619A (en) 2021-01-01

Family

ID=73857374

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010968248.2A Pending CN112160619A (en) 2020-09-15 2020-09-15 Dismantling system and construction method for ultrahigh steel pipe concrete structure

Country Status (1)

Country Link
CN (1) CN112160619A (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6187020A (en) * 1984-10-03 1986-05-02 Nippon Kokan Kk <Nkk> Cutter for steel pipe sheet pile
FR2911805A1 (en) * 2007-01-25 2008-08-01 Lionel Zanon Portable and dismountable self centering orbital pipe cutter for e.g. nuclear industry, has saddle including gauges arranged in contact with internal or external surface of pipe and assuring concentric positioning between cutter and pipe
JP2013079515A (en) * 2011-10-04 2013-05-02 Takenaka Komuten Co Ltd Cutting/demolition method for concrete filling steel tube column and steel tube cutting device
JP2014001511A (en) * 2012-06-15 2014-01-09 Takenaka Komuten Co Ltd Dismantlement method for structure
CN205362843U (en) * 2016-03-07 2016-07-06 松阳上上德盛不锈钢有限公司 Novel cutting equipment of big pipe diameter stainless steel pipe

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6187020A (en) * 1984-10-03 1986-05-02 Nippon Kokan Kk <Nkk> Cutter for steel pipe sheet pile
FR2911805A1 (en) * 2007-01-25 2008-08-01 Lionel Zanon Portable and dismountable self centering orbital pipe cutter for e.g. nuclear industry, has saddle including gauges arranged in contact with internal or external surface of pipe and assuring concentric positioning between cutter and pipe
JP2013079515A (en) * 2011-10-04 2013-05-02 Takenaka Komuten Co Ltd Cutting/demolition method for concrete filling steel tube column and steel tube cutting device
JP2014001511A (en) * 2012-06-15 2014-01-09 Takenaka Komuten Co Ltd Dismantlement method for structure
CN205362843U (en) * 2016-03-07 2016-07-06 松阳上上德盛不锈钢有限公司 Novel cutting equipment of big pipe diameter stainless steel pipe

Similar Documents

Publication Publication Date Title
CN108104273A (en) Assembled self- recoverage concrete filled steel tube combined joint and installation method and structural system
CN202139833U (en) Cantilever scaffold for building construction
CN107780951B (en) High-ground-stress soft rock large-deformation primary support system
CN107476595B (en) Universal frame structure multilayer integral column-drawing construction method and device
CN111254930A (en) Pile head breaking device for cast-in-place pile and construction method
CN102061742B (en) Shockproof reinforced concrete pseudo-classic building structural system
CN210067544U (en) Prefabricated steel structure protective shed frame for railway business line
CN214994657U (en) Green&#39;s large-span steel construction building
CN109853945A (en) A kind of new concrete column template device and its construction method
CN112160619A (en) Dismantling system and construction method for ultrahigh steel pipe concrete structure
CN107938498B (en) Assembled steel pier column and assembled gate-type steel pier
CN205047238U (en) Truss and U shaped steel complex roadway support structure
CN110438911B (en) Construction method for local ecological demolition structure of urban bridge
CN210562633U (en) A steel construction for quick assembly disassembly for construction
CN106499188B (en) The hydraulic material distributing machine of floor inner climbing type is climbed support system
CN109057024A (en) The double replaceable active beam link of channel cross-section-steel skirt beam connection structures and installation method
CN104963280B (en) A kind of Novel circular steel cylinder pier
CN212054727U (en) Pavilion type shield plate support
CN202509490U (en) Steel-concrete combined pile capable of being disassembled under load by segments and being repeatedly used
CN113982349A (en) Deep foundation pit special position stiffness structural column and construction method thereof
CN111677535A (en) Self-adaptive yielding support device
JP3977700B2 (en) Demolition and new construction method using existing underground structure
CN220150531U (en) Butt joint connecting device between steel skeleton columns for building
CN216380480U (en) Integral movable operation frame
CN117166446A (en) Karst reinforcement treatment device and method under complex building conditions

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
RJ01 Rejection of invention patent application after publication

Application publication date: 20210101

RJ01 Rejection of invention patent application after publication