CN111591883A - Beam body reinforcing method of crane beam - Google Patents

Beam body reinforcing method of crane beam Download PDF

Info

Publication number
CN111591883A
CN111591883A CN202010271174.7A CN202010271174A CN111591883A CN 111591883 A CN111591883 A CN 111591883A CN 202010271174 A CN202010271174 A CN 202010271174A CN 111591883 A CN111591883 A CN 111591883A
Authority
CN
China
Prior art keywords
reinforcing
frame
crane
crane beam
reinforcing frame
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
Application number
CN202010271174.7A
Other languages
Chinese (zh)
Other versions
CN111591883B (en
Inventor
蒋瓅
瞿革
蒋斌
李玮
张晶
陈喆
李庆武
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.)
China Shipbuilding NDRI Engineering Co Ltd
Original Assignee
China Shipbuilding NDRI Engineering Co Ltd
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 China Shipbuilding NDRI Engineering Co Ltd filed Critical China Shipbuilding NDRI Engineering Co Ltd
Priority to CN202010271174.7A priority Critical patent/CN111591883B/en
Publication of CN111591883A publication Critical patent/CN111591883A/en
Application granted granted Critical
Publication of CN111591883B publication Critical patent/CN111591883B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66CCRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C6/00Girders, or track-supporting structures, specially adapted for cranes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66CCRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C13/00Other constructional features or details

Abstract

The invention belongs to the field of crane equipment, and particularly discloses a beam body reinforcing method of a crane beam, which comprises the following steps: repairing and mapping the crane beam before reinforcing; manufacturing a reinforcing structure, and reinforcing the crane beam by using the reinforcing structure for the first time to form a reinforcing beam body after the first reinforcement; and carrying out secondary reinforcement on the primary reinforced beam body, forming a reinforced beam after the secondary reinforcement and realizing the reinforcement of the beam body. The reinforcing method of the invention enhances the operation safety of the crane beam, improves the production efficiency of a factory, disperses the stress of the end part of the crane beam through the matching of the upper reinforcing frame and the lower reinforcing frame, on one hand, reinforces the beam body, ensures the strength of the whole crane beam, has small investment and short period, reduces the danger, on the other hand, improves the connection and support strength of the crane beam and the reinforcing structure, avoids the fracture of the end part of the crane beam, and has good use effect.

Description

Beam body reinforcing method of crane beam
Technical Field
The invention relates to the field of crane equipment, in particular to a beam body reinforcing method of a crane beam.
Background
The bridge crane is a hoisting device which is transversely arranged above workshops, warehouses and material yards to hoist materials. Since its two ends are seated on a tall concrete column or a metal bracket, it is shaped like a bridge. The bridge frame of the bridge crane runs longitudinally along the rails laid on the elevated frames at two sides, so that the space below the bridge frame can be fully utilized to hoist materials without being hindered by ground equipment. In industrial plants, bridge cranes are most widely used because of their large lifting capacity coverage and large service area. For a steel structure factory building, when the span of the crane beam is less than or equal to 9m and the lifting capacity of the crane is less than or equal to 20t, the crane beam can select a proper section specification of the crane beam according to a national standard drawing set. However, in large plants (such as industrial plants in shipyards), the crane span is often large (up to 42m), the lifting capacity variation is also large (3 t-200 t), and nonstandard crane applications are common.
After the crane beam is used, the welding seams at the connection part of the beam part of the crane beam are cracked, crack expansion and the like to form great hidden dangers for safe use of a travelling crane, the performance of the crane beam and the overall stability of a workshop are directly influenced, and the production efficiency of a factory and the development of national economy are also influenced. Reinforcement of the crane beam is therefore required.
Disclosure of Invention
The invention aims to provide a beam body reinforcing method of a crane beam, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a beam body reinforcing method of a crane beam comprises the following steps:
s1: repairing and mapping the crane beam before reinforcing;
s2: manufacturing a reinforcing structure, and reinforcing the crane beam by using the reinforcing structure for the first time to form a reinforcing beam body after the first reinforcement;
s3: and performing secondary reinforcement on the primary reinforced beam body based on S2, forming a reinforced beam after the secondary reinforcement and realizing the reinforcement of the beam body.
Preferably, S1 specifically includes: s11: repairing cracks at the end parts of the two sides of the crane beam before reinforcing, wherein the repairing comprises welding and repairing the cracks; s12: and surveying and mapping the crane beam after repairing, and determining the size of the installed reinforcing structure.
Preferably, the reinforcing structure in S2 includes an upper reinforcing frame, a lower reinforcing frame, a fastener, a first reinforcing member and a second reinforcing member, the two end portions of the upper reinforcing frame and the lower reinforcing frame are respectively provided with a top plate and a bottom plate, and the upper reinforcing frame and the top plate are provided with mounting grooves matched with the upper portion and the middle portion of the crane beam; the lower reinforcing frame is arranged on the lower portion of the upper reinforcing frame, the top end face of the lower reinforcing frame is in contact with the bottom end face of the lower portion of the crane beam, the lower reinforcing frame and the upper reinforcing frame are both provided with connecting holes, a fastening piece is connected between the lower reinforcing frame and the upper reinforcing frame, penetrates through the connecting holes and connects the upper reinforcing frame, the lower portion of the crane beam and the lower reinforcing frame.
Preferably, the first reinforcing members are arranged on two sides of the crane beam, the first reinforcing members comprise reinforcing rib plates and reinforcing bolts, the reinforcing rib plates are fixedly connected to the outer side of the crane beam, the bottom ends of the reinforcing rib plates are connected with the upper reinforcing frame through the reinforcing bolts, and included angles between the reinforcing rib plates and the bottom surface of the upper reinforcing frame are acute angles.
Preferably, the upper reinforcing frame, the top plate, the lower reinforcing frame and the bottom plate form a primary reinforcing beam body, the second reinforcing member is arranged on the outer sides of the upper reinforcing frame and the lower reinforcing frame, the second reinforcing member comprises two symmetrical reinforcing seats, and the end parts of the reinforcing seats are matched with the outer side of the primary reinforcing beam body.
Preferably, the upper reinforcing frame and the lower reinforcing frame are both of an isosceles trapezoid frame structure.
Preferably, the reinforcement structure in S2 specifically includes, for the crane beam, the following steps: s21: arranging a pore channel on the crane beam, placing the upper part and the middle part of the crane beam in an installation groove formed on the upper reinforcing frame and the top plate, enabling the pore channel to correspond to a connecting hole on the upper reinforcing frame, and then welding and fixing the installation groove; s22: arranging the lower reinforcing frame at the bottom of the crane beam, and connecting the connecting holes in the lower reinforcing frame with the corresponding pore passages through fasteners; s23: reinforcing rib plates are arranged on two sides of the crane beam, the bottom of each reinforcing rib plate is connected with the inner side wall of the upper reinforcing frame through a reinforcing bolt, and a primary reinforcing beam body is formed after reinforcing connection.
Preferably, the secondary reinforcement in S3 includes: s31: welding the two reinforcing seats, and placing the two reinforcing seats on the outer side of the primary reinforcing beam body, wherein the shapes of the side end surfaces of the two reinforcing seats are matched with the outer side surface of the primary reinforcing beam body; s32: and welding the two reinforcing seats with the outer side surface of the primary reinforcing beam body by adopting gas shielded welding.
Compared with the prior art, the invention has the beneficial effects that:
the reinforcing method of the invention enhances the operation safety of the crane beam, improves the production efficiency of a factory, disperses the stress of the end part of the crane beam through the matching of the upper reinforcing frame and the lower reinforcing frame, on one hand, reinforces the beam body, ensures the strength of the whole crane beam, has small investment and short period, reduces the danger, on the other hand, improves the connection and support strength of the crane beam and the reinforcing structure, avoids the fracture of the end part of the crane beam, and has good use effect.
Drawings
FIG. 1 is a first flowchart of a consolidation method according to the present invention;
FIG. 2 is a second flowchart of the reinforcement method of the present invention;
FIG. 3 is a flow chart of a third embodiment of the reinforcement method of the present invention;
FIG. 4 is a schematic structural view of a primary reinforcing beam body according to the present invention;
FIG. 5 is a schematic view of a portion of the primary reinforcing beam of the present invention;
FIG. 6 is a schematic structural diagram of a second fastener in the secondary reinforcement process of the present invention.
In the figure: 1. a crane beam; 2. an upper reinforcing frame; 21. a top plate; 3. a lower reinforcing frame; 31. a base plate; 4. a fastener; 5. a first reinforcing member; 51. reinforcing the ribbed plate; 52. reinforcing the bolt; 6. and a second reinforcing member.
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.
In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Referring to fig. 1-6, the present invention provides a technical solution: a beam body reinforcing method of a crane beam comprises the following steps:
s1: repairing and surveying and mapping the crane beam 1 before reinforcing;
s2: manufacturing a reinforcing structure, reinforcing the crane beam 1 by using the reinforcing structure for the first time, and forming a reinforcing beam body after the first reinforcement;
s3: and performing secondary reinforcement on the primary reinforced beam body based on S2, forming a reinforced beam after the secondary reinforcement and realizing the reinforcement of the beam body.
In this embodiment, S1 specifically includes: s11: repairing cracks at the end parts of the two sides of the crane beam 1 before reinforcing, wherein the repairing comprises welding and repairing the cracks; s12: and surveying and mapping the crane beam 1 after repairing, and determining the size of the installed reinforcing structure.
Referring to fig. 4, in the present embodiment, the reinforcing structure in S2 includes an upper reinforcing frame 2, a lower reinforcing frame 3, a fastening member 4, a first reinforcing member 5, and a second reinforcing member 6, wherein two end portions of the upper reinforcing frame 2 and the lower reinforcing frame 3 are respectively provided with a top plate 21 and a bottom plate 31, and the upper reinforcing frame 2 and the top plate 21 are provided with mounting grooves matched with the upper portion and the middle portion of the crane beam 1; the lower reinforcing frame 3 is arranged on the lower portion of the upper reinforcing frame 2, the top end face of the lower reinforcing frame 3 is in contact with the bottom end face of the lower portion of the crane beam 1, connecting holes are formed in the lower reinforcing frame 3 and the upper reinforcing frame 2, a fastening piece 4 is connected between the lower reinforcing frame 3 and the upper reinforcing frame 2, and the fastening piece 4 penetrates through the connecting holes and connects the upper reinforcing frame 2, the lower portion of the crane beam 1 and the lower reinforcing frame 3.
Referring to fig. 5, in the present embodiment, the first reinforcing members 5 are disposed on two sides of the crane beam 1, each first reinforcing member 5 includes a reinforcing rib 51 and a reinforcing bolt 52, the reinforcing rib 51 is fixedly connected to the outer side of the crane beam 1, the bottom end of the reinforcing rib 51 is connected to the upper reinforcing frame 2 through the reinforcing bolt 52, and an included angle between the reinforcing rib 51 and the bottom surface of the upper reinforcing frame 2 is an acute angle.
In this embodiment, the upper reinforcing frame 2, the top plate 21, the lower reinforcing frame 3 and the bottom plate 31 form a primary reinforcing beam body, the second reinforcing member 6 is disposed outside the upper reinforcing frame 2 and the lower reinforcing frame 3, the second reinforcing member 6 includes two symmetrical reinforcing seats, and the ends of the reinforcing seats are matched with the outside of the primary reinforcing beam body.
In this embodiment, the upper reinforcing frame 2 and the lower reinforcing frame 3 are both an isosceles trapezoid frame structure.
In this embodiment, the reinforcing structure in S2 specifically includes, for one time, reinforcing the crane beam: s21: arranging a pore channel on the crane beam 1, placing the upper part and the middle part of the crane beam 1 in mounting grooves formed on the upper reinforcing frame 2 and the top plate 21, enabling the pore channel to correspond to a connecting hole on the upper reinforcing frame 2, and then welding and fixing the mounting grooves; s22: arranging the lower reinforcing frame 3 at the bottom of the crane beam 1, and connecting the connecting holes on the lower reinforcing frame 3 corresponding to the pore passages through the fasteners 4; s23: reinforcing rib plates 51 are installed on two sides of the crane beam 1, the bottom of the reinforcing rib plate 51 is connected with the inner side wall of the upper reinforcing frame 2 through a reinforcing bolt 52, and a primary reinforcing beam body is formed after reinforcing connection.
Referring to fig. 6, in the present embodiment, the secondary reinforcement in S3 includes: s31: welding the two reinforcing seats, and placing the two reinforcing seats on the outer side of the primary reinforcing beam body, wherein the shapes of the side end surfaces of the two reinforcing seats are matched with the outer side surface of the primary reinforcing beam body; s32: and welding the two reinforcing seats with the outer side surface of the primary reinforcing beam body by adopting gas shielded welding.
The reinforcing method of the invention enhances the operation safety of the crane beam, improves the production efficiency of a factory, disperses the stress of the end part of the crane beam through the matching of the upper reinforcing frame 2 and the lower reinforcing frame 3, on one hand, reinforces the beam body, ensures the strength of the whole crane beam, has small investment and short period, reduces the danger, on the other hand, improves the connection and support strength of the crane beam and the reinforcing structure, avoids the fracture of the end part of the crane beam, and has good use effect.
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 (8)

1. A beam body reinforcing method of a crane beam is characterized by comprising the following steps:
s1: repairing and surveying and mapping the crane beam (1) before reinforcing;
s2: manufacturing a reinforcing structure, and reinforcing the crane beam (1) by using the reinforcing structure for the first time to form a reinforced beam body after the first reinforcement;
s3: and performing secondary reinforcement on the primary reinforced beam body based on S2, forming a reinforced beam after the secondary reinforcement and realizing the reinforcement of the beam body.
2. The method for reinforcing a beam body of a crane beam according to claim 1, wherein the S1 specifically includes: s11: repairing cracks at the end parts of the two sides of the crane beam (1) before reinforcing, wherein the repairing comprises welding and repairing the cracks; s12: and surveying and mapping the crane beam (1) after repairing, and determining the size of the installed reinforcing structure.
3. The beam body reinforcing method of the crane beam as claimed in claim 1, wherein the reinforcing structure in S2 comprises an upper reinforcing frame (2), a lower reinforcing frame (3), a fastening member (4), a first reinforcing member (5) and a second reinforcing member (6), wherein a top plate (21) and a bottom plate (31) are respectively installed at two end parts of the upper reinforcing frame (2) and the lower reinforcing frame (3), and installation grooves matched with the upper part and the middle part of the crane beam (1) are formed in the upper reinforcing frame (2) and the top plate (21); the lower reinforcing frame (3) is arranged on the lower portion of the upper reinforcing frame (2), the top end face of the lower reinforcing frame (3) is in contact with the bottom end face of the lower portion of the crane beam (1), connecting holes are formed in the lower reinforcing frame (3) and the upper reinforcing frame (2), a fastening piece (4) is connected between the lower reinforcing frame (3) and the upper reinforcing frame (2), and the fastening piece (4) penetrates through the connecting holes and connects the upper reinforcing frame (2), the lower portion of the crane beam (1) and the lower reinforcing frame (3).
4. The method for reinforcing the beam body of the crane beam as claimed in claim 3, wherein the first reinforcing members (5) are arranged on two sides of the crane beam (1), the first reinforcing members (5) comprise reinforcing rib plates (51) and reinforcing bolts (52), the reinforcing rib plates (51) are fixedly connected to the outer side of the crane beam (1), the bottom ends of the reinforcing rib plates (51) are connected with the upper reinforcing frame (2) through the reinforcing bolts (52), and an included angle between the reinforcing rib plates (51) and the bottom surface of the upper reinforcing frame (2) is an acute angle.
5. A beam reinforcing method for crane beam according to claim 3, characterized in that the upper reinforcing frame (2), the top plate (21), the lower reinforcing frame (3) and the bottom plate (31) form a primary reinforcing beam, the second reinforcing member (6) is arranged outside the upper reinforcing frame (2) and the lower reinforcing frame (3), the second reinforcing member (6) comprises two symmetrical reinforcing seats, and the ends of the reinforcing seats are matched with the outside of the primary reinforcing beam.
6. The method for reinforcing the beam body of the crane beam as claimed in claim 3, wherein the upper reinforcing frame (2) and the lower reinforcing frame (3) are both of an isosceles trapezoid frame structure.
7. The method for reinforcing the beam body of the crane beam as claimed in any one of claims 1 to 6, wherein the step of reinforcing the crane beam by the reinforcing structure in the step S2 specifically comprises the following steps: s21: arranging a pore channel on the crane beam (1), placing the upper part and the middle part of the crane beam (1) in mounting grooves formed on the upper reinforcing frame (2) and the top plate (21), enabling the pore channel to correspond to a connecting hole on the upper reinforcing frame (2), and then welding and fixing the mounting grooves; s22: the lower reinforcing frame (3) is arranged at the bottom of the crane beam (1), and connecting holes in the lower reinforcing frame (3) correspond to the pore passages and are connected through fasteners (4); s23: reinforcing rib plates (51) are arranged on two sides of the crane beam (1), the bottom of each reinforcing rib plate (51) is connected with the inner side wall of the upper reinforcing frame (2) through a reinforcing bolt (52), and a primary reinforcing beam body is formed after reinforcing connection.
8. The method for reinforcing a beam body of a crane beam according to any one of claims 1 to 6, wherein the secondary reinforcement in S3 includes: s31: welding the two reinforcing seats, and placing the two reinforcing seats on the outer side of the primary reinforcing beam body, wherein the shapes of the side end surfaces of the two reinforcing seats are matched with the outer side surface of the primary reinforcing beam body; s32: and welding the two reinforcing seats with the outer side surface of the primary reinforcing beam body by adopting gas shielded welding.
CN202010271174.7A 2020-04-08 2020-04-08 Beam body reinforcing method of crane beam Active CN111591883B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010271174.7A CN111591883B (en) 2020-04-08 2020-04-08 Beam body reinforcing method of crane beam

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010271174.7A CN111591883B (en) 2020-04-08 2020-04-08 Beam body reinforcing method of crane beam

Publications (2)

Publication Number Publication Date
CN111591883A true CN111591883A (en) 2020-08-28
CN111591883B CN111591883B (en) 2023-05-05

Family

ID=72188687

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010271174.7A Active CN111591883B (en) 2020-04-08 2020-04-08 Beam body reinforcing method of crane beam

Country Status (1)

Country Link
CN (1) CN111591883B (en)

Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2207660A1 (en) * 1997-06-12 1998-12-12 Aluma Enterprises Inc. Screw piercable structural support for a planar substrate
JP2008266000A (en) * 2007-04-25 2008-11-06 Jfe Steel Kk Reinforcing construction method of i-shaped cross-sectional girder and i-shaped cross-sectional girder
JP2009190880A (en) * 2008-02-18 2009-08-27 Jfe Steel Corp Crane girder reinforcing structure
JP2010132415A (en) * 2008-12-05 2010-06-17 Mec Engineering Service Co Ltd Crane repairing method and repaired crane
CN202245737U (en) * 2011-10-08 2012-05-30 沈艳艳 Upper part mechanism used in crane girder
CN103821226A (en) * 2014-03-07 2014-05-28 南通市苏东钢结构有限公司 Novel crane beam structure
CN204737609U (en) * 2015-07-10 2015-11-04 河南东起机械有限公司 European style hoist girder connection structure
CN204751934U (en) * 2015-05-20 2015-11-11 河南省恒远起重机械集团有限公司 Metallurgy crane girder web crackle reinforcing apparatus
CN105089288A (en) * 2014-05-06 2015-11-25 中冶建筑研究总院有限公司 Steel structural beam anti-fatigue reinforcing method
CN204847846U (en) * 2015-08-29 2015-12-09 河南真牛起重机有限公司 Web heavier -duty crane girder structure
CN105883605A (en) * 2016-06-23 2016-08-24 合肥市神雕起重机械有限公司 Web reinforcing device for crane
CN106894646A (en) * 2017-02-27 2017-06-27 中冶建筑研究总院有限公司 A kind of antifatigue bracing means of steel corbel post
CN209507427U (en) * 2018-11-23 2019-10-18 中铁第一勘察设计院集团有限公司 A kind of riser ruggedized construction of steel flanged beam steel crane beam upper area fatigue
CN210001450U (en) * 2018-12-28 2020-01-31 宝山钢铁股份有限公司 variable cross-section crane beam reinforced structure

Patent Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2207660A1 (en) * 1997-06-12 1998-12-12 Aluma Enterprises Inc. Screw piercable structural support for a planar substrate
JP2008266000A (en) * 2007-04-25 2008-11-06 Jfe Steel Kk Reinforcing construction method of i-shaped cross-sectional girder and i-shaped cross-sectional girder
JP2009190880A (en) * 2008-02-18 2009-08-27 Jfe Steel Corp Crane girder reinforcing structure
JP2010132415A (en) * 2008-12-05 2010-06-17 Mec Engineering Service Co Ltd Crane repairing method and repaired crane
CN202245737U (en) * 2011-10-08 2012-05-30 沈艳艳 Upper part mechanism used in crane girder
CN103821226A (en) * 2014-03-07 2014-05-28 南通市苏东钢结构有限公司 Novel crane beam structure
CN105089288A (en) * 2014-05-06 2015-11-25 中冶建筑研究总院有限公司 Steel structural beam anti-fatigue reinforcing method
CN204751934U (en) * 2015-05-20 2015-11-11 河南省恒远起重机械集团有限公司 Metallurgy crane girder web crackle reinforcing apparatus
CN204737609U (en) * 2015-07-10 2015-11-04 河南东起机械有限公司 European style hoist girder connection structure
CN204847846U (en) * 2015-08-29 2015-12-09 河南真牛起重机有限公司 Web heavier -duty crane girder structure
CN105883605A (en) * 2016-06-23 2016-08-24 合肥市神雕起重机械有限公司 Web reinforcing device for crane
CN106894646A (en) * 2017-02-27 2017-06-27 中冶建筑研究总院有限公司 A kind of antifatigue bracing means of steel corbel post
CN209507427U (en) * 2018-11-23 2019-10-18 中铁第一勘察设计院集团有限公司 A kind of riser ruggedized construction of steel flanged beam steel crane beam upper area fatigue
CN210001450U (en) * 2018-12-28 2020-01-31 宝山钢铁股份有限公司 variable cross-section crane beam reinforced structure

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
刘忠辉;: "某重钢工业厂房吊车检测鉴定与加固方案分析" *
李斌,田志昌,孙祯: "钢吊车梁的加固试验研究" *

Also Published As

Publication number Publication date
CN111591883B (en) 2023-05-05

Similar Documents

Publication Publication Date Title
CN204252286U (en) A kind of rectangular steel-tube concrete column-steel beam connecting joint
CN208293763U (en) The board-like beam-to-column joint device of outer ring
CN111591883A (en) Beam body reinforcing method of crane beam
CN103495793A (en) Improved construction method for hoisting and welding large-tonnage cast steel component complex joints
CN219316021U (en) Steel construction building plate body structure and connected node
CN201217602Y (en) Combined sling for manufacturing box-shaped steel construction member
CN111591882A (en) Installation method of large crane beam
CN214941017U (en) Steel structure supporting beam convenient to mount
CN106285015A (en) Steel structural roof beam method for rapidly mounting based on location-plate
CN113738125A (en) Line-straight-down type station room limited space large-span steel structure lifting construction method
CN209990015U (en) House building steel constructs roof beam
CN212712408U (en) Steel crane beam reinforcement jacking and positioning device
CN102019512B (en) Butt welding construction method for T-shaped column
CN212712393U (en) Crane beam movable support device
CN115559554B (en) Construction method for installing newly-added beam colliding with existing beam when supporting structure is excessive
CN218668187U (en) Steel structure special-shaped column combined component
CN210035029U (en) High-strength channel steel structure
CN216616284U (en) Steel splint that girder steel butt joint was used
CN211597373U (en) Combined corner post and roof girder connecting joint structure
CN212866335U (en) H-shaped steel beam connecting joint
CN218758283U (en) Lattice type support column for heavy steel workshop
CN209924270U (en) Steel structure building section column
CN211007018U (en) Steel construction arc turning of area support
CN216893403U (en) Detachable operation platform for high-altitude butt joint of heavy steel columns of industrial factory building
CN215558332U (en) Combined lifting appliance

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