CN211472207U - Suspension beam system for hoisting prefabricated section box girder - Google Patents
Suspension beam system for hoisting prefabricated section box girder Download PDFInfo
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- CN211472207U CN211472207U CN202020009127.0U CN202020009127U CN211472207U CN 211472207 U CN211472207 U CN 211472207U CN 202020009127 U CN202020009127 U CN 202020009127U CN 211472207 U CN211472207 U CN 211472207U
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- suspension
- supporting
- suspension beam
- hoisting
- longitudinal
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- 239000000725 suspension Substances 0.000 title claims abstract description 74
- 238000004873 anchoring Methods 0.000 claims abstract description 26
- 230000007246 mechanism Effects 0.000 claims abstract description 19
- 238000010276 construction Methods 0.000 claims abstract description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 35
- 239000010959 steel Substances 0.000 claims description 35
- 125000006850 spacer group Chemical group 0.000 claims 3
- 238000000034 method Methods 0.000 description 6
- 238000005096 rolling process Methods 0.000 description 5
- 238000003466 welding Methods 0.000 description 3
- 230000004308 accommodation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012876 topography Methods 0.000 description 1
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Abstract
The utility model relates to the technical field of bridge construction, in particular to a suspension beam system for hoisting a prefabricated segment box girder, which comprises a suspension beam, wherein the suspension beam comprises a longitudinal beam and a cross beam, a stand column is fixedly arranged below the longitudinal beam and is used for supporting on the top surface of a zero-number block on the top of a pier top so as to realize the support of the suspension beam, an anchoring structure is fixedly arranged below the cross beam and is used for being fixed with the top surface of the zero-number block on the top of the pier top; the hanging bracket comprises a supporting beam, a connecting beam and a fixing frame fixedly connected between the supporting beam and the connecting beam; the supporting beam is arranged in an overhanging manner, a lifting lug is arranged at the top of the supporting beam, a lifting hole is arranged on the connecting beam, and the lifting hole is used for being fixed with a prefabricated lifting hole on the prefabricated section box girder through a connecting structure; the three-dimensional space coordinate of the prefabricated section box girder is accurately adjusted by the supporting and adjusting mechanism, so that the prefabricated section box girder is accurately adjusted relative to the zero-number block on the pier top.
Description
Technical Field
The utility model relates to a bridge construction technical field especially relates to a suspended beam system for hoist and mount of prefabricated festival section case roof beam.
Background
With the continuous development of bridge construction technology in China, the assembly process of the prefabricated section box girder is generally applied to urban bridge construction at home and abroad due to the characteristics of rapidness, accuracy and environmental protection. In the assembly process of the prefabricated section box girder, a lower support system is generally adopted as a temporary support in the prior art, and the method is stable in stress system and convenient to operate. However, the application range is limited, the operation difficulty is high under the complex conditions of high piers and geology, and the use cost is high, so that the method for supporting the prefabricated section box girder by adopting the lower support system for temporary support is greatly limited, and cannot be popularized and applied in a large range.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing a suspension beam system for hoist and mount of prefabricated segment case roof beam to adopt lower part mounting system to carry out the method application scope of prefabricated segment case roof beam support limited, the operation degree of difficulty is big, the higher problem of cost among the solution prior art.
In order to achieve the above object, the utility model discloses a suspension beam system that is used for hoist and mount of prefabricated segment case roof beam adopts's technical scheme is:
a suspension beam system for precast segment box beam lifting comprising:
suspension beam: the device comprises two longitudinal beams arranged in parallel and cross beams fixed between the two longitudinal beams at intervals in the longitudinal direction, wherein at least two cross beams are arranged; the longitudinal beam extends along the left-right direction, the cross beam extends along the front-back direction, an upright post is fixedly arranged below the longitudinal beam and is used for supporting the top surface of the pier top zero block so as to support the suspension beam, an anchoring structure is fixedly arranged below the cross beam and is used for fixing the top surface of the pier top zero block and fixing the suspension beam relative to the pier top zero block;
a hanging bracket: the two hanging brackets comprise a supporting beam positioned at the top of the hanging bracket, a connecting beam positioned at the bottom of the hanging bracket, and a fixing frame fixedly connected between the supporting beam and the connecting beam; the supporting beam is arranged in a transversely overhanging manner relative to the connecting beam, a lifting lug is arranged at the top of the supporting beam, a lifting hole is arranged on the connecting beam, and the lifting hole is used for being fixed with a prefabricated lifting hole on the prefabricated section box girder through a connecting structure;
support adjustment mechanism: the lifting device comprises a screw jack and a three-way jack, wherein the screw jack and the three-way jack are arranged on the top surface of a longitudinal beam, the screw jack is used for jacking a supporting beam of the lifting frame, and the three-way jack is used for jacking the supporting beam so as to accurately adjust the position of the lifting frame when the screw jack is separated from the supporting beam.
The beneficial effects of the above technical scheme are: the utility model discloses a prefabricated festival section case roof beam among suspension beam system carries out interim stretch-draw locking with the gallows before hoist and mount, place the spiral jack on suspension beam of suspension beam system with the gallows through the crawler crane, when needs carry out position control to prefabricated festival section case roof beam, prop with the three-dimensional jack and adjust the position of gallows when a supporting beam in order to come off a supporting beam at spiral jack, adopt the three-dimensional space coordinate of the prefabricated festival section case roof beam of three-dimensional jack accurate regulation, thereby realize the accurate regulation of prefabricated festival section case roof beam for mound top zero number piece, thereby make the fixed of prefabricated festival section case roof beam not receive pier high restriction, do not receive construction site ground bearing capacity and topography condition restriction, the application range of suspension beam system has been increased.
Further, the crossbeam is provided with two, and the left end of left crossbeam and longeron forms the space that holds the left gallows, and the right-hand member of right crossbeam and longeron forms the space that holds the right gallows.
Has the advantages that: when guaranteeing the structural strength of hanging beam, can also be convenient hang the gallows to the accommodation space that crossbeam and longeron formed to make a supporting beam support of gallows love on the screw jack.
Furthermore, the anchoring structures are provided with four sets, two sets of anchoring structures are arranged below the left cross beam at intervals along the front-back direction, and two sets of anchoring structures are arranged below the right cross beam at intervals along the front-back direction.
Has the advantages that: the suspension beam is more stably fixed on the top surface of the pier top zero block.
The anchoring structure comprises an upper short finish rolling deformed steel bar, a lower short finish rolling deformed steel bar and a middle cross hinge structure.
Has the advantages that: and a cross hinge is arranged between the upper short finish-rolled deformed steel bar and the lower short finish-rolled deformed steel bar and is used for releasing the moment generated on the finish-rolled deformed steel bars under the influences of longitudinal slope and transverse slope, the deviation of the pre-buried finish-rolled deformed steel bars and the like.
The support adjusting mechanism is provided with four sets, the support adjusting mechanism is arranged at the left end and the right end of the longitudinal beam, each set of support adjusting mechanism comprises two screw jacks and two three-way jacks which are positioned on the same straight line, and the two three-way jacks are respectively positioned at the left side and the right side of the two screw jacks.
Has the advantages that: the two three-way jacks used for adjustment are respectively arranged on the left side and the right side of the two screw jacks, so that the three-way jacks can support and adjust the supporting beam of the hanger in a larger range, and the hanger can be ensured to be more stable in the adjusting process.
And a cushion block or a gasket is arranged below the upright column to realize the leveling of the suspension beam.
Has the advantages that: the leveling of the suspension beam is realized through the cushion block or the gasket, so that the suspension beam is more stably supported on the top surface of the pier top zero block.
The screw jack is fixed on the top surface of the longitudinal beam, the three-way jack is placed on the top surface of the longitudinal beam, a steel gasket is arranged below the three-way jack, and the height of the hanging bracket is adjusted by adding or subtracting the steel gasket.
Has the advantages that: the height of the three-way jack can be conveniently adjusted, so that the three-way jack can meet the requirement on the supporting height of the hanger.
The connecting structure comprises finish-rolled deformed steel bars and special nuts.
Has the advantages that: the fixed connection of prefabricated segment box girder and tie-beam is conveniently realized.
The suspension beam is formed by welding profile steels, and the suspension bracket is of a steel frame structure.
Has the advantages that: the structural strength of the suspension beam and the hanger is increased.
Drawings
Fig. 1 is a schematic view of a suspension beam system for hoisting a prefabricated section box girder in the utility model in a use state;
FIG. 2 is a front view of the suspension beam system of FIG. 1 for hoisting of precast segmental box beams;
FIG. 3 is a top view of the suspension beam system of FIG. 1 for hoisting of precast segmental box beams;
fig. 4 is a right side view of the spreader in the suspension beam system of fig. 1 for hoisting of prefabricated section box girders.
Reference numerals: 1-pier top zero block; 2-prefabricating a section box girder; 3-hanging the beam; 4-a hanger; 5-longitudinal beams; 6-a cross beam; 7-upright post; 8-a support beam; 9-connecting the beams; 10-a screw jack; 11-three-way jack; 12-a lifting lug; 13-anchoring structure.
Detailed Description
The utility model discloses a suspension beam system for hoist and mount of prefabricated segment case roof beam is described in further detail below with the accompanying drawings and detailed implementation:
as shown in fig. 1 and 2, the utility model discloses a suspension beam 3 system for hoisting of prefabricated segment case roof beam 2 is including fixing suspension beam 3 on mound top No. 1 top surface, supporting gallows 4 on suspension beam 3 top surface through supporting adjustment mechanism, and the lower extreme and the prefabricated segment case roof beam 2 of gallows 4 are fixed, through the three-dimensional space coordinate who supports adjustment mechanism adjustment gallows 4, make gallows 4 carry out the accurate regulation for the mounted frame to realize prefabricated segment case roof beam 2 for the accurate regulation of mound top No. 1.
The pier top zero block 1 is finished in a field pouring mode, and a temporary prestress tensioning PVC pipe and a suspension beam 3 system fixing PVC pipe are pre-buried before the pier top zero block 1 is poured for fixing with the suspension beam 3. The prefabricated section box girder 2, which may also be referred to as a block, is prefabricated.
Specifically, suspension beam 3 forms through the shaped steel welding, suspension beam 3 includes that longeron 5 and the interval of two parallel arrangement fix the crossbeam 6 between two longerons 5, crossbeam 6 is provided with two, longeron 5 extends along left right direction, crossbeam 6 extends along the fore-and-aft direction, fixed stand 7 that is provided with in the below of longeron 5, stand 7 supports the top surface in order to realize the support to suspension beam 3 at mound top No. 1, specifically, stand 7 is provided with four, every stand 7 sets up in longeron 5 with crossbeam 6 crossing position department. An anchoring structure 13 is fixedly arranged below each cross beam 6, and after the suspension beam 3 is supported on the pier top zero block 1 and leveled, the anchoring structure 13 is fixed with a PVC pipe on the pier top zero block 1 so as to fix the suspension beam 3 relative to the pier top zero block 1. The anchor structure 13 is provided with four sets, and the below of left crossbeam is provided with two sets of anchor structures 13 along the fore-and-aft direction interval, and the below of right crossbeam is provided with two sets of anchor structures 13 along the fore-and-aft direction interval, and anchor structure 13 includes two piece upper and lower short finish rolling deformed steel bars and middle cross hinge structure, and the cross hinge is used for releasing because indulge, the cross slope influence and pre-buried finish rolling deformed steel bar appear moment that produces under the condition such as the deviation. In order to realize the leveling of the suspension beam 3 on the pier top zero block 1, a cushion block or a gasket is arranged below the upright post 7.
As shown in fig. 1 and 4, two hangers 4 are provided, the two hangers 4 are respectively provided at the left and right ends of the suspension frame, a space for accommodating the left hanger is formed between the left end of the left cross beam and the left end of the longitudinal beam 5, and a space for accommodating the right hanger is formed between the right end of the right cross beam and the right end of the longitudinal beam 5. Specifically, gallows 4 be steel-frame construction, including a supporting beam 8 that is located gallows 4 top, be located the tie-beam 9 of gallows 4 bottom, fixed connection is at a supporting beam 8 and the mount between tie-beam 9, a supporting beam 8 is for the tie-beam 9 setting of overhanging in the front and back direction to make gallows 4 place on supporting the regulation structure after, a supporting beam 8 and the longeron 5 of mounted frame have the overlap in the up-down direction, in order to realize supporting the top stay of adjustment mechanism to a supporting beam 8. The top of the supporting beam 8 is provided with a lifting lug 12 for realizing the lifting of the hanger 4; be provided with the lewis hole on the tie-beam 9, the lewis hole passes through connection structure fixed connection with prefabricated hoist and mount hole on the prefabricated segment case roof beam 2, and in this embodiment, connection structure includes finish rolling screw-thread steel and special nut.
The supporting and adjusting mechanisms are arranged at the left end and the right end of the longitudinal beam 5 of the suspension beam 3, four sets of supporting and adjusting mechanisms are arranged, each set of supporting and adjusting mechanism comprises two screw jacks 10 and two three-way jacks 11 which are positioned on the same straight line, the two three-way jacks 11 are respectively positioned at the left side and the right side of the two screw jacks 10, the screw jacks 10 are used for supporting the supporting beam 8 of the hanger 4, and the three-way jacks 11 are used for adjusting the position of the hanger 4. Specifically, the screw jack 10 is fixed on the top surface of the longitudinal beam 5, the three-way jack 11 is placed on the top surface of the longitudinal beam 5, a steel gasket is arranged below the three-way jack 11, and the height of the three-way jack 11 is adjusted by adding or subtracting the steel gasket, so that the three-way jack 11 can meet the requirement on the supporting height of the hanger 4.
When the suspension beam 3 system for hoisting the prefabricated section box girder 2 is used, firstly, the suspension beam 3 is assembled on site, then the suspension beam 3 is hoisted to the pier top zero number block 1 by using a crawler crane, namely, the upright post 7 below the suspension beam 3 is supported on the top surface of the pier top zero number block 1, then a cushion block or a gasket is arranged below the upright post 7 to realize the leveling of the suspension beam 3 on the pier top zero number block 1, then the suspension beam 3 is anchored on the pier top zero number block 1 through the anchoring structure 14, after the anchoring is finished, the finish-rolled deformed steel bar in the anchoring structure 13 is temporarily tensioned, the suspension beam 3 is fixed by using a finish-rolled deformed steel bar nut and a gasket, then, a hoisting steel wire rope is removed, and the installation and the locking of the suspension beam 3 are finished; after the suspension beam 3 is fixedly installed, the suspension beam 3 is respectively cantilevered leftwards and rightwards relative to the pier top zero block 1. After the suspension beam is fixed, a screw jack 10 is fixed on the suspension beam, and a three-way jack 11 is placed on the suspension beam.
Before hoisting the prefabricated segment box girder 2, the hangers 4 and the prefabricated segment box girder 2 are temporarily tensioned and locked, namely, the hanging holes on the connecting beam 9 below the hangers 4 and the prefabricated hanging holes on the prefabricated segment box girder 2 are fixed through finish-rolled deformed steel bars and special nuts, then the prefabricated segment box girder 2 is symmetrically hoisted by two crawler belts, the two hangers 4 are respectively placed on the screw jacks 10 on the suspension beams 3, the hoisting steel wire ropes on the prefabricated segment box girder 2 are removed, then the positions of the hangers 4 relative to the suspension beams 3 are adjusted, namely, the screw jacks 11 are upwards jacked or downwards dropped, the three-way jacks 11 are used for replacing the screw jacks 10 to support the hangers 4, and the hangers 4 are accurately adjusted in the left-right direction, the front-back direction and the up-down direction through the three-way jacks 11, in the embodiment, the three-way jacks are the prior art, and will not be described in detail herein. The space coordinate error between prefabricated section box girder 2 below the hanger 4 and the pier top zero number block 1 is kept within 2mm, after the prefabricated section box girder 2 is adjusted in place, the screw jack 10 is jacked, the screw jack 10 replaces the three-way jack 11 to support the hanger 4, and the prefabricated section box girder 2 on two sides of the pier top zero number block 1 and the pier top zero number block 1 are temporarily tensioned and locked through rigid materials, so that the prefabricated section box girder 2 is adjusted and fixed relative to the pier top zero number block 1.
In the above embodiment, two cross beams are provided, a space for accommodating the left hanger is formed between the left end of the left cross beam and the left end of the longitudinal beam, and a space for accommodating the right hanger is formed between the right end of the right cross beam and the right end of the longitudinal beam; in other embodiments, the cross beams can be further provided with three or four, at the moment, the left ends of the cross beams and the longitudinal beams which are positioned at the leftmost side form a space for accommodating the left hanging bracket, and the right ends of the cross beams and the longitudinal beams which are positioned at the rightmost side form a space for accommodating the right hanging bracket.
In the above embodiment, four sets of anchoring structures are arranged, two sets of anchoring structures are arranged below the left cross beam at intervals along the front-back direction, and two sets of anchoring structures are arranged below the right cross beam at intervals along the front-back direction; in other embodiments, the anchoring knot can be provided with six sets and eight sets, and six sets of anchoring structures are formed. Three sets of anchoring structures are arranged below the left cross beam at intervals along the front-back direction, and three sets of anchoring structures are arranged below the right cross beam at intervals along the front-back direction.
In the above embodiment, the anchoring structure includes an upper short finish rolled deformed steel bar, a lower short finish rolled deformed steel bar, and a middle cross hinge structure, and in other embodiments, the anchoring structure may not include the cross hinge structure.
In the above embodiment, four sets of the supporting and adjusting mechanisms are arranged, the supporting and adjusting mechanisms are arranged at the left end and the right end of the longitudinal beam, each set of the supporting and adjusting mechanisms comprises two screw jacks and two three-way jacks which are positioned on the same straight line, and the two three-way jacks are respectively positioned at the left side and the right side of the two screw jacks; in other embodiments, each support adjustment mechanism includes two screw jacks and two three-way jacks located on the same straight line, and the two screw jacks and the two three-way jacks are arranged alternately.
In the embodiment, the cushion block or the gasket is arranged below the upright column to realize the leveling of the suspension beam; in other embodiments, the adjustment can be realized through adjustable anchor bolts below the upright column so as to realize the leveling of the suspension beam.
In the above embodiment, the screw jack is fixed on the top surface of the longitudinal beam, the three-way jack is placed on the top surface of the longitudinal beam, the steel gasket is arranged below the three-way jack, and the height of the hanger is adjusted by adding or subtracting the steel gasket; in other embodiments, the steel gasket is not needed to be arranged below the three-way jack.
In the above embodiment, the suspension beam is formed by welding profile steels, and the hanger is of a steel frame structure; in other embodiments, the longitudinal beams and the cross beams of the suspension beams can be fixedly connected through bolts.
Claims (9)
1. A suspension beam system for hoisting of prefabricated section box girders is characterized by comprising:
suspension beam: the device comprises two longitudinal beams arranged in parallel and cross beams fixed between the two longitudinal beams at intervals in the longitudinal direction, wherein at least two cross beams are arranged; the longitudinal beam extends along the left-right direction, the cross beam extends along the front-back direction, an upright post is fixedly arranged below the longitudinal beam and is used for supporting the top surface of the pier top zero block so as to support the suspension beam, an anchoring structure is fixedly arranged below the cross beam and is used for fixing the top surface of the pier top zero block and fixing the suspension beam relative to the pier top zero block;
a hanging bracket: the two hanging brackets comprise a supporting beam positioned at the top of the hanging bracket, a connecting beam positioned at the bottom of the hanging bracket and a fixing frame fixedly connected between the supporting beam and the connecting beam; the supporting beam is arranged in a suspending manner in the front-back direction relative to the connecting beam, a lifting lug is arranged at the top of the supporting beam, a lifting hole is formed in the connecting beam, and the lifting hole is used for being fixed with a prefabricated lifting hole in the prefabricated section box girder through a connecting structure;
support adjustment mechanism: the lifting device comprises a screw jack and a three-way jack, wherein the screw jack and the three-way jack are arranged on the top surface of a longitudinal beam, the screw jack is used for jacking a supporting beam of the lifting frame, and the three-way jack is used for jacking the supporting beam so as to accurately adjust the position of the lifting frame when the screw jack is separated from the supporting beam.
2. A suspension beam system for hoisting of precast segmental box girders according to claim 1, characterized in that: the crossbeam is provided with two, and the left end of left crossbeam and longeron forms the space that holds left gallows, and the right-hand member of right crossbeam and longeron forms the space that holds right gallows.
3. A suspension beam system for hoisting precast segmental box girders according to claim 2, characterized in that the anchoring structures are provided with four sets, two sets of anchoring structures are provided under the left cross beam at intervals in the front-rear direction, and two sets of anchoring structures are provided under the right cross beam at intervals in the front-rear direction.
4. A suspension beam system for hoisting of precast segmental box girders according to any one of claims 1-3, characterized in that the anchoring structure comprises an upper and a lower short finish rolled thread steel and an intermediate cross-hinge structure.
5. A suspension beam system for hoisting precast segmental box girders according to any one of claims 1 to 3, characterized in that the support adjusting mechanisms are provided with four sets, the support adjusting mechanisms are provided at the left and right ends of the longitudinal beams, each set of support adjusting mechanisms comprises two screw jacks and two three-way jacks which are located on the same straight line, and the two three-way jacks are respectively located at the left and right sides of the two screw jacks.
6. A suspension beam system for hoisting precast segmental box girders according to any one of claims 1-3, characterized in that under the columns, spacers or shims are placed to achieve leveling of the suspension beams.
7. A suspension beam system for hoisting precast segmental box girders according to any one of claims 1 to 3, characterized in that the screw jacks are fixed on the top surfaces of the longitudinal beams, the three-way jacks are placed on the top surfaces of the longitudinal beams, steel spacers are arranged below the three-way jacks, and the height of the hanger is adjusted by adding and subtracting the steel spacers.
8. A suspension beam system for hoisting of precast segment box girders according to any of claims 1-3, characterized in that the connection structure comprises finish-rolled screw steel and special nuts.
9. A suspension beam system for hoisting precast segmental box girders according to any one of claims 1-3, characterized in that the suspension beams are welded by section steel and the hangers are of steel frame construction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020009127.0U CN211472207U (en) | 2020-01-03 | 2020-01-03 | Suspension beam system for hoisting prefabricated section box girder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020009127.0U CN211472207U (en) | 2020-01-03 | 2020-01-03 | Suspension beam system for hoisting prefabricated section box girder |
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| Publication Number | Publication Date |
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| CN211472207U true CN211472207U (en) | 2020-09-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020009127.0U Expired - Fee Related CN211472207U (en) | 2020-01-03 | 2020-01-03 | Suspension beam system for hoisting prefabricated section box girder |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111910531A (en) * | 2020-09-22 | 2020-11-10 | 河南省中原奥起实业有限公司 | Bridge erecting method |
| CN114016385A (en) * | 2021-10-12 | 2022-02-08 | 中铁广州工程局集团有限公司 | High-speed railway cable-stayed bridge prefabricated segment beam prestress connecting piece and connecting method |
-
2020
- 2020-01-03 CN CN202020009127.0U patent/CN211472207U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111910531A (en) * | 2020-09-22 | 2020-11-10 | 河南省中原奥起实业有限公司 | Bridge erecting method |
| CN114016385A (en) * | 2021-10-12 | 2022-02-08 | 中铁广州工程局集团有限公司 | High-speed railway cable-stayed bridge prefabricated segment beam prestress connecting piece and connecting method |
| CN114016385B (en) * | 2021-10-12 | 2023-12-12 | 中铁广州工程局集团有限公司 | Prestressed connecting piece and connecting method for prefabricated section beam of inclined cable bridge of high-speed railway |
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Granted publication date: 20200911 |