CN212270712U - Construction device for mounting and dismounting steel box girder by suspension of bridge girder erection machine - Google Patents
Construction device for mounting and dismounting steel box girder by suspension of bridge girder erection machine Download PDFInfo
- Publication number
- CN212270712U CN212270712U CN202020509529.7U CN202020509529U CN212270712U CN 212270712 U CN212270712 U CN 212270712U CN 202020509529 U CN202020509529 U CN 202020509529U CN 212270712 U CN212270712 U CN 212270712U
- Authority
- CN
- China
- Prior art keywords
- erection machine
- steel box
- bridge girder
- joist
- girder erection
- 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.)
- Active
Links
Images
Landscapes
- Bridges Or Land Bridges (AREA)
Abstract
The utility model discloses a bridge girder erection machine hangs and holds in palm installation uninstallation steel case roof beam construction equipment, including bridge girder erection machine sandbox support, jib and joist, the quantity of jib is two and equal vertical settings, the jib comprises upper segment, middle section and hypomere three-section, the upper segment the middle section with through installing additional between the hypomere the connection can be dismantled to threaded connection ware. Has the advantages that: the utility model discloses a jib passes sandbox support top surface and fixes through the nut, can make the jib not atress through the sand that emits in the sandbox support during the uninstallation, and then make the jib top follow the inside whereabouts of sandbox support and make the joist leave steel box girder body bottom surface through the mode of unscrewing the nut to this realizes the uninstallation to the steel box girder body, realizes the uninstallation steel box girder body with the mode that jib and joist and hourglass are connected simultaneously, uninstallation is effectual and safe and reliable.
Description
Technical Field
The utility model relates to a bridge erection equipment field, concretely relates to bridge girder erection machine hangs and holds in palm installation uninstallation steel case roof beam construction equipment.
Background
In the process of erecting a steel box girder by a bridge erecting machine, the steel box girder needs to be suspended and supported so that the steel box girder can be accurately and stably fixed at an erecting position, at present, a threaded connector is adopted to connect a girder body when the concrete box girder is hung, specifically, a hanging rod penetrates through a preformed hole of the concrete girder body, the upper end and the lower end of the preformed hole of the concrete girder body are fixed by the threaded connector, after the fixation is finished, the concrete girder body is hung on a preset temporary support, the position is adjusted by a jack, after the tensioning is finished, the concrete girder body is integrally unloaded by adopting a jack process and a gas cutting process, after the unloading of the girder body is finished, the temporary support dismantling work is finished by matching of a truck crane and a chain block, and from the above, the original suspension device is mainly used for hoisting and erecting the girder body and cannot be used for unloading the steel box girder body.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a frame bridge crane hangs support installation uninstallation steel box girder construction equipment just lies in solving above-mentioned problem, pass sandbox support top surface through the jib and fix through the nut, can make the jib not atress through the sand of emitting in the sandbox support during the uninstallation, and then make the jib top follow the inside whereabouts of sandbox support and make the joist leave steel box girder body bottom surface through the mode of unscrewing the nut to this realizes the uninstallation to the steel box girder body, describe in detail below.
In order to achieve the above purpose, the utility model provides a following technical scheme:
the utility model provides a construction device for installing and unloading steel box girders of a bridge girder erection machine suspension bracket, which comprises a bridge girder erection machine sandbox support, two suspenders and a joist, wherein the suspenders are vertically arranged, each suspender comprises an upper section, a middle section and a lower section, and the upper section, the middle section and the lower section are detachably connected through additionally installing a threaded connector;
the upper section vertically penetrates through an opening at the lower part of the bridge girder erection machine sandbox support, the top end of the upper section is exposed out of an opening at the top surface of the bridge girder erection machine sandbox support, a locking nut is meshed with the outer side of the part, exposed out of the top surface of the bridge girder erection machine sandbox support, of the upper section, and the diameter of the locking nut is larger than the aperture of the opening at the top surface of the bridge girder erection machine sandbox support;
the top surface of the middle part of the joist is in contact with the bottom surface of the steel box girder body in an attaching manner, the lower sections of the two suspenders vertically penetrate through the holes on the two sides of the joist respectively, the bottom ends of the lower sections are exposed out of the bottom surface of the joist, fixing nuts are meshed on the outer sides of the parts of the lower sections, which are exposed out of the bottom surface of the joist, and the diameters of the fixing nuts are larger than the hole diameters of the joist.
Preferably, the length of the upper section is 2.5 m.
Preferably, the length of the middle section is 8.5 m.
Preferably, the length of the lower section is 5.5 m.
Preferably, the material of the threaded connector is finish-rolled deformed steel bar.
Preferably, the lock nut and the fixing nut are both made of finish-rolled deformed steel bars.
Adopt above-mentioned bridge crane to hang and hold in palm installation uninstallation steel box girder construction equipment, when using: the upper section, the middle section and the lower section are fixedly connected into a whole through the threaded connector, after the steel box girder body is lifted to the proper position, the joist is lifted to a hanging position from the ground by two electric hoists, the suspender in the process is corresponding to the position of a hoisting hole at the bottom surface of a main girder of a bridge girder erection machine when the joist is lifted, the suspender can be fixed in a support of the bridge girder erection machine sandbox after penetrating through the joist, then the upper section of the suspender firstly penetrates through the hoisting hole of the main girder of the bridge girder erection machine from bottom to top and then penetrates through the support of the bridge girder erection machine, finally the upper section is limited by the locking nut at the top and then is prevented from falling down, meanwhile, the upper section is a relatively fixed section, the upper section is fixed when the left and right amplitudes are changed, the movable hoisting hole position is changed by communicating with the support of the bridge girder erection machine when the span is changed, the lower section penetrates through the joist and is fixed by adding the fixing nut at the bottom, therefore, the sand can be moved up and down along with the joists, and the work of inserting the suspender is performed at the height of 30 meters, the upper section is penetrated, the middle section is disassembled and the suspender is hung by an electric hoist, the suspender can be hung and penetrated only after an operation hanging rail is hung on a crane beam of a bridge girder erection machine, the disassembly and assembly times and the operation difficulty can be reduced because the suspender is made into three sections and connected by the threaded connector, each section of the steel box girder body is hung and supported by two joists, the sand in the steel box girder sandbox support is discharged after the splicing and welding of the steel box girder body is completed, the suspender is in an unstressed state along with the reduction of the falling of the sand, the locking nut is screwed off when the suspender is in the unstressed state, and the suspender immediately vertically falls along the bridge girder erection machine sandbox support, the joist falls off together with the hanger rod and leaves the steel box girder body, and the unloading of the steel box girder body is completed immediately.
Has the advantages that: 1. the utility model discloses a jib passes sandbox support top surface and fixes through the nut, can make the jib not atress through discharging the sand in the sandbox support during the uninstallation, and then make jib top fall and make the joist leave steel box girder body bottom surface from sandbox support inside through the mode of unscrewing the nut, realize the uninstallation to steel box girder body with this to realize the uninstallation steel box girder body, realize the uninstallation steel box girder body with jib and joist and the mode of hourglass connection simultaneously, uninstallation is effectual and safe and reliable;
2. the hanger rods are made into three sections and are connected through the threaded connectors, so that the disassembly and assembly times and the operation difficulty can be reduced in the process of erecting the steel box girder and unloading.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a front view of the present invention;
fig. 2 is an enlarged view of a portion a of fig. 1 according to the present invention;
figure 3 is a schematic view of the utility model of figure 1.
The reference numerals are explained below:
1. a bridge girder erection machine sandbox support; 2. a boom; 201. an upper section; 202. a middle section; 203. a lower section; 3. a steel box girder body; 4. a joist; 5. locking the nut; 6. a threaded connector; 7. and (5) fixing the nut.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1-3, the utility model provides a bridge crane hangs and holds in palm installation uninstallation steel box girder construction equipment, including bridge crane sandbox support 1, jib 2 and joist 4, the quantity of jib 2 is two and equal vertical settings, and jib 2 comprises upper segment 201, middle section 202 and hypomere 203 three-section, can dismantle the connection through installing threaded connection ware 6 additional between upper segment 201, middle section 202 and the hypomere 203. The upper segment 201 vertically penetrates through a lower opening of the bridge girder erection machine sandbox support 1, the top end of the upper segment 201 exposes a top surface opening of the bridge girder erection machine sandbox support 1, the outer side of the part, exposed out of the top surface of the bridge girder erection machine sandbox support 1, of the upper segment 201 is meshed with a locking nut 5, and the diameter of the locking nut 5 is larger than the diameter of the opening of the top surface of the bridge girder erection machine sandbox support 1. The top surface of the middle part of the joist 4 is in contact with the bottom surface of the steel box girder body 3 in an attaching manner, the lower sections 203 of the two suspenders 2 vertically penetrate through the holes on the two sides of the joist 4 respectively, the bottom ends of the lower sections 203 are exposed out of the bottom surface of the joist 4, the outer sides of the parts of the lower sections 203 exposed out of the bottom surface of the joist 4 are meshed with fixing nuts 7, and the diameters of the fixing nuts 7 are larger than the hole diameters of the joist 4.
Preferably, the length of the upper section 201 is 2.5m, so as to ensure that the upper section 201 has enough length to pass through the inside of the bridge girder erection machine sandbox support 1, the length of the middle section 202 is 8.5m, so that the middle section 202 has enough use length, and the length of the lower section 203 is 5.5m, so as to ensure that the lower section 203 has enough use length to be fixedly connected with the joist 4.
The material of threaded connector 6 is finish rolling screw-thread steel to threaded connector 6 itself has firm working strength and life-span, and lock nut 5 and fixation nut 7's material are finish rolling screw-thread steel, so that lock nut 5 and fixation nut 7 have firm working strength and life-span.
With the structure, when in use: the upper section 201, the middle section 202 and the lower section 203 are fixedly connected into a whole through the threaded connector 6, after the steel box girder body 3 is lifted to the proper position, the joist 4 is lifted to a hanging position from the ground by two electric hoists, in the process, the suspender 2 is corresponding to the position of a lifting hole at the bottom surface of a main girder of a bridge erecting machine when the joist 4 is lifted, the suspender 2 is ensured to be fixed in a supporting seat 1 of the bridge erecting machine after penetrating through the supporting seat, then the upper section 201 of the suspender 2 firstly penetrates through a lifting hole of the main girder of the bridge erecting machine from bottom to top and then penetrates through the supporting seat 1 of the main girder of the bridge erecting machine, finally the upper section is limited by the locking nut 5 at the top and then is prevented from falling down, meanwhile, the upper section 201 is a relatively fixed section, the upper section 201 is not moved when the left and right amplitudes are changed, and is communicated with the supporting seat 1 of the bridge erecting machine to move together to change the lifting hole position when the span is, therefore, the steel box girder 2 can be vertically moved up and down along with the joist 4, it should be noted that the operation of inserting the suspender 2 is carried out at the height of 30 meters, the upper section 201, the dismounting middle section 202 and the suspender 2 hung by the electric hoist are hung on the beam of the bridge girder erection machine crown block, the suspension work of the suspender 2 can be carried out only after the operation hanging hurdle is hung on the beam of the bridge girder erection machine crown block, the suspender 2 is made into three sections and is connected by the threaded connector 6, thereby the dismounting times and the operation difficulty can be reduced, each section of the steel box girder 3 is suspended and supported by two joists 4, after the suspension welding of the steel box girder 3 is completed, the sand in the steel box girder sandbox support is discharged, the suspender 2 is in an unstressed state along with the falling of the sand, then the locking nut 5 is screwed off when the suspender 2 is in an unstressed state, the suspender 2 immediately vertically falls along the bridge girder erection machine sandbox support 1, the joist 4 is separated from the steel box girder 3 along, the unloading of the steel box girder 3 is completed immediately.
The bridge girder erection machine preferably used in the above-mentioned patent specification is: YQJ550t-60M is mainly composed of a box girder, a bridge girder erection machine sandbox support 1, a lifting crown block, a front support device, a middle support device, a rear support device, a hydraulic and electric system, a special M-shaped steel portal frame and finish rolling deformed steel bars, wherein the bridge girder erection machine can meet the requirements of transverse translation and longitudinal overspan, and has the self weight of 655t, the total length of 134M, the maximum overspan capacity of 60M, the maximum lifting height of 35M and the maximum uniformly distributed suspension amount of 550 t.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (6)
1. The utility model provides a bridge girder erection machine hangs support installation uninstallation steel case roof beam construction equipment, includes bridge girder erection machine sandbox support, jib and joist, its characterized in that: the number of the hanging rods is two, the hanging rods are vertically arranged, each hanging rod consists of an upper section, a middle section and a lower section, and the upper section, the middle section and the lower section are detachably connected through additionally-arranged threaded connectors;
the upper section vertically penetrates through an opening at the lower part of the bridge girder erection machine sandbox support, the top end of the upper section is exposed out of an opening at the top surface of the bridge girder erection machine sandbox support, a locking nut is meshed with the outer side of the part, exposed out of the top surface of the bridge girder erection machine sandbox support, of the upper section, and the diameter of the locking nut is larger than the aperture of the opening at the top surface of the bridge girder erection machine sandbox support;
the top surface of the middle part of the joist is in contact with the bottom surface of the steel box girder body in an attaching manner, the lower sections of the two suspenders vertically penetrate through the holes on the two sides of the joist respectively, the bottom ends of the lower sections are exposed out of the bottom surface of the joist, fixing nuts are meshed on the outer sides of the parts of the lower sections, which are exposed out of the bottom surface of the joist, and the diameters of the fixing nuts are larger than the hole diameters of the joist.
2. The construction device for installing and unloading the steel box girder of the bridge girder erection machine according to claim 1, is characterized in that: the length of the upper section is 2.5 m.
3. The construction device for installing and unloading the steel box girder of the bridge girder erection machine according to claim 2, is characterized in that: the length of the middle section is 8.5 m.
4. The construction device for installing and unloading the steel box girder of the bridge girder erection machine according to claim 3, is characterized in that: the length of the lower section is 5.5 m.
5. The construction device for installing and unloading the steel box girder of the bridge girder erection machine according to claim 4, wherein: the threaded connector is made of finish-rolled deformed steel bars.
6. The construction device for installing and unloading the steel box girder of the bridge girder erection machine according to claim 5, wherein: the locking nut and the fixing nut are both made of finish-rolled deformed steel bars.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020509529.7U CN212270712U (en) | 2020-04-09 | 2020-04-09 | Construction device for mounting and dismounting steel box girder by suspension of bridge girder erection machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020509529.7U CN212270712U (en) | 2020-04-09 | 2020-04-09 | Construction device for mounting and dismounting steel box girder by suspension of bridge girder erection machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212270712U true CN212270712U (en) | 2021-01-01 |
Family
ID=73876110
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020509529.7U Active CN212270712U (en) | 2020-04-09 | 2020-04-09 | Construction device for mounting and dismounting steel box girder by suspension of bridge girder erection machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212270712U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114214941A (en) * | 2021-09-08 | 2022-03-22 | 中交武汉港湾工程设计研究院有限公司 | Reverse lifting equipment for mounting separated suspension bridge steel beam and construction method thereof |
| CN114525846A (en) * | 2021-12-09 | 2022-05-24 | 北京建工集团有限责任公司 | Mounting method of unequal-elevation steel truss structure |
-
2020
- 2020-04-09 CN CN202020509529.7U patent/CN212270712U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114214941A (en) * | 2021-09-08 | 2022-03-22 | 中交武汉港湾工程设计研究院有限公司 | Reverse lifting equipment for mounting separated suspension bridge steel beam and construction method thereof |
| CN114214941B (en) * | 2021-09-08 | 2024-03-26 | 中交武汉港湾工程设计研究院有限公司 | Inverted lifting equipment for installing steel girder of separated suspension bridge and construction method thereof |
| CN114525846A (en) * | 2021-12-09 | 2022-05-24 | 北京建工集团有限责任公司 | Mounting method of unequal-elevation steel truss structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100549348C (en) | Construction method for hanging wide span arcuated open-web beam | |
| CN102864936B (en) | Combination lifting construction method for large-scale high hollow building roof of steel structure | |
| CN104652807A (en) | Self-circulation construction system and method for internal climbing tower supporting steel beam in hydraulic climbing formwork system | |
| CN212270712U (en) | Construction device for mounting and dismounting steel box girder by suspension of bridge girder erection machine | |
| CN112049405A (en) | Hanging basket wall-penetrating type overhanging structure and method for erecting hanging basket on inclined roof | |
| CN210439705U (en) | Precast concrete superimposed sheet hoist device | |
| CN103132702A (en) | Longspan pipe truss pulling bar lifting and overhead rotating emplacing construction method | |
| CN106315426A (en) | Block form tower crane mounting and jacking method for assembled building | |
| CN210150563U (en) | Steel reinforcement framework lifting appliance suitable for lifting prefabricated section beam | |
| CN211689948U (en) | Suspension operation platform device for construction of suspension cable at tower part of cable-stayed bridge | |
| CN209601982U (en) | A kind of flat-top tower crane convenient for manpower transport's installation | |
| CN110040632A (en) | A kind of segmental hoisting construction method of large span section steel beam | |
| CN211920714U (en) | Support system of pull-up and pull-down type external hanging self-climbing tower crane | |
| CN103743581A (en) | Internal climbing tower crane test platform device and test method | |
| CN111453630B (en) | Bridge deck crane and use method thereof | |
| CN210002233U (en) | Hoisting system suitable for suspension bridge steel structure bridge deck system | |
| CN109972845B (en) | Method for mounting steel roof truss | |
| CN209957241U (en) | Steel hanger | |
| CN113445723A (en) | Construction platform for mounting overhanging structure curtain wall and mounting method | |
| CN114030977B (en) | Hoisting auxiliary device for rapidly installing angle steel bracket of pavement of railway bridge deck system | |
| CN202899720U (en) | Steel pole provided with foot treadles and used for high-tension transmission line iron tower | |
| CN207513137U (en) | Building engineering construction builder's jack | |
| CN112049017A (en) | Bailey frame integral frame falling device for cast-in-place box girder and construction process | |
| CN217629469U (en) | High pier stud owner muscle hoist device | |
| CN213571554U (en) | Suspension type anchorage portal |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |