CN211037088U - Jacking deviation correcting device for high-rise shear wall structure - Google Patents
Jacking deviation correcting device for high-rise shear wall structure Download PDFInfo
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- CN211037088U CN211037088U CN201921749078.8U CN201921749078U CN211037088U CN 211037088 U CN211037088 U CN 211037088U CN 201921749078 U CN201921749078 U CN 201921749078U CN 211037088 U CN211037088 U CN 211037088U
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- bearing platform
- underpinning
- jacking
- shear wall
- buttress
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Abstract
The utility model discloses a high-rise shear wall structure jacking deviation correcting device, include and trade the cushion cap with the lower support that links to each other with former substructure by the upper portion shear wall structure bottom of jacking and trade the cushion cap, the even symmetrical arrangement of the cushion cap bottom of the underpinning a plurality of jacks, jack bottom and top all are equipped with local pressure steel cushion, the symmetrical arrangement has a plurality of spacing buttresses on underpinning cushion cap and former lower part knot down, spacing buttress bottom with the substructure bottom plate links to each other, spacing buttress top with it trades to go up to underpin and is equipped with pressure-bearing girder steel and adjustable backing plate between the cushion cap. The utility model discloses can be even with the steady step jacking of making progress of being restricted, the jacking force of jack can be shared on the one hand in the existence of spacing buttress, reduces the stress concentration of underpinning the cushion cap and reduces the influence to superstructure, and spacing buttress can effectively avoid jacking in-process jacking force inhomogeneous and produce the skew of horizontal direction simultaneously, ensures the safe and reliable of jacking process of rectifying.
Description
Technical Field
The utility model relates to a building engineering technical field, in particular to whole jacking deviation correcting device of high-rise shear wall structure.
Background
With the continuous promotion of the urbanization process, a large number of high-rise buildings are increased, the inclination of the buildings is caused by the factors of large self load of the high-rise buildings and reconnaissance, design, construction and the like, and the existing building deviation correction methods mainly comprise a forced landing method, a jacking method and the like aiming at the inclination correction of the buildings.
The jacking method is characterized in that a jacking underpinning bearing platform is arranged on a vertical bearing component, after the structure is cut off and separated at a certain position, a jack is reused for lifting the whole structure, the operation process of the jacking underpinning method generally starts to jack the whole structure to one magnitude of height along one direction, then the jacking underpinning method jacks the whole structure to the other direction, and the jacking underpinning method is used for circulating for certain times to reach the designed jacking height according to the jacking process.
The jacking deviation rectifying process control of the high-rise building is extremely important, and particularly needs to prevent horizontal deviation in the jacking process so as to avoid influencing an upper structure. Because the upper structure and the former substructure that are jacked in the jacking process are separated and the object is vertically restrained, the uniformity of jacking force and the synchronous harmony of jacking displacement are difficult to guarantee, consequently make upper structure and former substructure produce horizontal dislocation easily, influence the recovery of structure.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a whole jacking deviation correcting device of high-rise building shear wall structure, cause destruction when aiming at reducing traditional jacking method and rectifying to the primary structure, avoid simultaneously the jacking in-process because of the uneven skew mistake that waits to produce horizontal structure of jacking force, ensure the coordination and the safety and stability of jacking process.
The utility model adopts the technical proposal that: a jacking deviation correcting device for a high-rise shear wall structure comprises a underpinning structure, an underpinned shear wall, a limiting buttress, a local pressure prevention steel cushion block, a jack, an upper jacked shear wall, an upper underpinning bearing platform, a lower underpinning bearing platform, an original structure floor slab, an original structure lower shear wall, horizontal steel bars, an underpinning bearing platform steel reinforcement framework, a pressure-bearing steel beam, a steel cushion block, an adjustable cushion block, a polyurethane foam plate and a limiting buttress steel reinforcement framework;
the underpinning structure comprises underpinned shear walls, an upper underpinning bearing platform is connected with the bottom end of a jacked upper shear wall, a lower underpinning bearing platform is connected with a shear wall at the lower part of an original structure, the upper underpinning bearing platform and the lower underpinning bearing platform are both of reinforced concrete structures, a plurality of jacks are uniformly and symmetrically arranged at the bottom of the upper underpinning bearing platform, local pressure preventing cushion blocks are arranged at the bottoms and the tops of the jacks, a plurality of limiting support piers are symmetrically arranged between the upper underpinning bearing platform and a floor slab of the original structure, the limiting support piers are of reinforced concrete structures, the bottoms of the limiting support piers are connected with the floor slab of the original structure, a pressure-bearing steel beam is arranged between the tops of the limiting support piers and the upper underpinning bearing platform, adjustable cushion blocks and steel cushion blocks are arranged on the pressure-bearing steel beam;
the limiting buttress steel bar framework is arranged in the limiting buttress and comprises limiting buttress vertical steel bars and limiting buttress horizontal stirrups, so that the limiting buttress and the original structural floor slab are cast into a whole;
the lower underpinning bearing platform and the upper underpinning bearing platform are symmetrical and have the same structure; the upper underpinning bearing platform and the lower underpinning bearing platform are internally provided with underpinning bearing platform steel reinforcement frameworks, and the underpinning bearing platform steel reinforcement frameworks comprise bearing platform stirrups, bearing platform longitudinal reinforcements and bearing platform bottom horizontal reinforcements; horizontal steel bars are implanted into the lifted upper shear wall inside the upper underpinning bearing platform, and the upper underpinning bearing platform and the lifted upper shear wall are connected into a whole.
Preferably, the pressure-bearing steel beam is H-shaped steel, and the height is selected according to the distance between the upper underpinning bearing platform and the limiting buttress.
Preferably, the adjustable cushion block is a wedge-shaped steel plate and is used for filling a gap between the upper underpinning bearing platform and the pressure-bearing steel beam, and the purpose of limiting the lateral displacement by selecting a proper steel beam and the cushion block according to the gap between the limiting buttress and the upper underpinning bearing platform in the jacking process is achieved.
Preferably, the polyurethane foam board can be used as a template of the limiting buttress. The method can reduce the workload of erecting and dismantling the template, is convenient to manufacture, and plays a certain role in buffering the horizontal deviation possibly generated by deviation rectification.
Preferably, the jack is a hydraulic jack and is supported between the upper underpinning bearing platform and the original lower structure floor slab. And the upper part and the lower part of the jack are both provided with local pressure prevention steel base plates so as to reduce stress concentration.
The utility model discloses can realize the steady jacking to the shear force wall structure, simultaneously spacing buttress also can restrict superstructure's horizontal displacement. The upper underpinning bearing platform and the lower underpinning bearing platform are both of reinforced concrete structures, the upper underpinning bearing platform is cast together with the bottom end of the upper shear wall to be jacked, and the lower underpinning bearing platform is cast together with the shear wall and the floor slab of the original lower structure of the building. The upper underpinning bearing platform and the lower underpinning bearing platform enable the bearing platform and the shear wall of the original structure to form a whole in a rib planting mode. So as to prevent the underpinning bearing platform and the shear wall from sliding.
The limiting buttress is of a reinforced concrete structure, the limiting buttress is poured together with a floor slab of an original lower structure, and a pressure-bearing steel beam and a wedge-shaped steel base plate are arranged between the limiting buttress and the upper underpinning bearing platform. And the vertical steel bars of the limiting buttress are embedded in advance and extend out of the plate surface when the lower supporting and changing bearing platform is manufactured. The vertical steel bars and the stirrups in the horizontal direction form a steel bar framework of the limiting buttress.
Has the advantages that: the utility model discloses can carry out whole deviation rectification to the high-rise building's of slope shear force wall, can effectively restrict the horizontal skew of the structure that the jacking in-process probably produced simultaneously. Construction convenience, jacking device safe and reliable, it is efficient to rectify the deviation, and jack and steel cushion block etc. can cyclic utilization many times, save material.
Drawings
Fig. 1 is a schematic plan view of the present invention.
Fig. 2 is a schematic sectional view of fig. 1-1.
Fig. 3 is a schematic sectional view of 2-2 in fig. 1.
Fig. 4 is a schematic sectional view of the structure of 3-3 in fig. 1.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings:
as shown in fig. 1, 2, 3 and 4, a jacking deviation rectifying device for a high-rise shear wall structure comprises a underpinning structure 1, an underpinned shear wall 2, a limiting buttress 3, a local pressure prevention steel cushion block 4, a jack 5, a jacked upper shear wall 6, an upper underpinning bearing platform 7, a lower underpinning bearing platform 8, an original structure floor slab 9, an original structure lower shear wall 10, horizontal steel bars 11, an underpinning bearing platform steel reinforcement framework 12, a pressure-bearing steel beam 13, a steel cushion block 14, an adjustable cushion block 15, a polyurethane foam plate 16 and a limiting buttress steel reinforcement framework 17;
the underpinning structure 1 comprises an underpinned shear wall 2, the upper underpinning bearing platform 7 is connected with the bottom end of a jacked upper shear wall 6, the lower underpinning bearing platform 8 is connected with a shear wall 10 at the lower part of the original structure, the upper underpinning bearing platform 7 and the lower underpinning bearing platform 8 are both of reinforced concrete structures, a plurality of jacks 5 are uniformly and symmetrically arranged at the bottom of the upper underpinning bearing platform 7, the bottoms and the tops of the jacks 5 are both provided with local pressure prevention cushion blocks 4, a plurality of limiting buttresses 3 are symmetrically arranged between the upper underpinning bearing platform 7 and the original structure floor slab 9, the limiting buttresses 3 are of a reinforced concrete structure, the bottoms of the limiting buttresses 3 are connected with the original structure floor slab 9, a pressure-bearing steel beam 13 is arranged between the top of the limiting buttresses 3 and the upper underpinning bearing platform 7, adjustable cushion blocks 15 and steel cushion blocks 14 are arranged on the pressure-bearing steel beam 13, and polyurethane foam plates 16 are arranged in gaps between the limiting buttresses 3 and the jacked upper shear wall 6;
the limiting buttress steel reinforcement framework 17 is arranged in the limiting buttress 3, and the limiting buttress steel reinforcement framework 17 comprises limiting buttress vertical steel bars 171 and limiting buttress horizontal stirrups 172, so that the limiting buttress 3 and the original structural floor slab 9 are cast into a whole;
the lower underpinning bearing platform 8 and the upper underpinning bearing platform 7 are symmetrical and have the same structure; the underpinning bearing platform steel reinforcement frameworks 12 are arranged in the upper underpinning bearing platform 7 and the lower underpinning bearing platform 8, and the underpinning bearing platform steel reinforcement frameworks 12 comprise bearing platform stirrups 121, bearing platform longitudinal reinforcements 122 and bearing platform bottom horizontal reinforcements 123; horizontal steel bars 11 are implanted into the lifted upper shear wall 6 inside the upper underpinning bearing platform 7, and the upper underpinning bearing platform 7 and the lifted upper shear wall 6 are connected into a whole.
The pressure-bearing steel beam 13 is H-shaped steel, and the height is selected according to the distance between the upper underpinning bearing platform and the limiting buttress. The adjustable cushion block 15 is a wedge-shaped steel plate and is used for filling a gap between the upper underpinning bearing platform 7 and the pressure-bearing steel beam 13, and the purpose of limiting the lateral displacement by selecting a proper steel beam and cushion block according to the gap between the limiting buttress 3 and the upper underpinning bearing platform 7 in the jacking process is achieved. The polyurethane foam board 16 can be used as a template of a limiting buttress. The method can reduce the workload of erecting and dismantling the template, is convenient to manufacture, and plays a certain role in buffering the horizontal deviation possibly generated by deviation rectification. The jack 5 is a hydraulic jack and is supported between the upper underpinning bearing platform and the original lower structure floor slab.
The utility model discloses a device is before the installation, need to draw the location to jack 5, steel cushion 4, the position of spacing buttress 3, go up the underpinning cushion cap 7 and underpin cushion cap 8 can make simultaneously and reserve the vertical reinforcing bar of spacing buttress 3 down, treat that the preparation finishes quick-witted jack 5 and place the back of taking one's place, must tightly underpin cushion cap 7 with jack 5 top, and with the clearance of adjustable cushion 15 jam and underpin cushion cap 7, then cut off former building for by jacking upper portion shear force wall 6 and former structure lower part shear force wall 10.
Adopt the utility model discloses a shear force wall jacking deviation correcting device, at the jacking in-process, adopt hierarchical jacking's mode, every grade of jacking volume is no longer than 5mm, an order of magnitude of every jacking, with the tight space of trading cushion 7 with adjustable cushion 15 top at spacing buttress 3 with last, when adjustable cushion 15 is not enough to transfer the benefit space, change the height of pressure-bearing girder steel 13 and with carve the shape steel sheet top tight, so circulate to reciprocate, until the jacking to design jacking height. After the jacked upper shear wall 6 and the original structure lower shear wall 10 are continuously reinforced, the upper underpinning bearing platform 7, the lower underpinning bearing platform 8 and the limiting buttress 3 can be disassembled.
The utility model provides a method is simple and easy, and the jacking of the high-rise shear wall structure of specially adapted large chassis is rectified, establishes the jacking position in the one deck on the ground, and the operation of being convenient for can reach the purpose that whole jacking was rectified, also can effectively prevent horizontal skew and the dislocation that probably produces from to rectifying the structure after resumeing and producing the influence.
The embodiments of the present invention are described in detail above with reference to the drawings, but the present invention is not limited to the described embodiments. To those skilled in the art, many changes, modifications, substitutions and alterations can be made to the embodiments without departing from the spirit and scope of the invention.
Claims (5)
1. The utility model provides a high-rise shear wall structure jacking deviation correcting device which characterized in that: the steel-reinforced composite underpinning structure comprises an underpinning structure, an underpinned shear wall, a limiting buttress, a local pressure-resistant steel cushion block, a jack, an upper jacked shear wall, an upper underpinning bearing platform, a lower underpinning bearing platform, an original structure floor slab, an original structure lower shear wall, horizontal steel bars, an underpinning bearing platform steel bar framework, a pressure-bearing steel beam, a steel cushion block, an adjustable cushion block, a polyurethane foam plate and a limiting buttress steel bar framework;
the underpinning structure comprises underpinned shear walls, an upper underpinning bearing platform is connected with the bottom end of a jacked upper shear wall, a lower underpinning bearing platform is connected with a shear wall at the lower part of an original structure, the upper underpinning bearing platform and the lower underpinning bearing platform are both of reinforced concrete structures, a plurality of jacks are uniformly and symmetrically arranged at the bottom of the upper underpinning bearing platform, local pressure preventing cushion blocks are arranged at the bottoms and the tops of the jacks, a plurality of limiting support piers are symmetrically arranged between the upper underpinning bearing platform and a floor slab of the original structure, the limiting support piers are of reinforced concrete structures, the bottoms of the limiting support piers are connected with the floor slab of the original structure, a pressure-bearing steel beam is arranged between the tops of the limiting support piers and the upper underpinning bearing platform, adjustable cushion blocks and steel cushion blocks are arranged on the pressure-bearing steel beam;
the limiting buttress steel bar framework is arranged in the limiting buttress and comprises limiting buttress vertical steel bars and limiting buttress horizontal stirrups, so that the limiting buttress and the original structural floor slab are cast into a whole;
the lower underpinning bearing platform and the upper underpinning bearing platform are symmetrical and have the same structure; the upper underpinning bearing platform and the lower underpinning bearing platform are internally provided with underpinning bearing platform steel reinforcement frameworks, and the underpinning bearing platform steel reinforcement frameworks comprise bearing platform stirrups, bearing platform longitudinal reinforcements and bearing platform bottom horizontal reinforcements; horizontal steel bars are implanted into the lifted upper shear wall inside the upper underpinning bearing platform, and the upper underpinning bearing platform and the lifted upper shear wall are connected into a whole.
2. The jacking and deviation-rectifying device for the high-rise shear wall structure according to claim 1, characterized in that: the pressure-bearing steel beam is H-shaped steel.
3. The jacking and deviation-rectifying device for the high-rise shear wall structure according to claim 1, characterized in that: the adjustable cushion block is a wedge-shaped steel plate.
4. The jacking and deviation-rectifying device for the high-rise shear wall structure according to claim 1, characterized in that: the polyurethane foam board is used as a template of the limiting buttress.
5. The jacking and deviation-rectifying device for the high-rise shear wall structure according to claim 1, characterized in that: the jack is a hydraulic jack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921749078.8U CN211037088U (en) | 2019-10-18 | 2019-10-18 | Jacking deviation correcting device for high-rise shear wall structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921749078.8U CN211037088U (en) | 2019-10-18 | 2019-10-18 | Jacking deviation correcting device for high-rise shear wall structure |
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| CN211037088U true CN211037088U (en) | 2020-07-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921749078.8U Active CN211037088U (en) | 2019-10-18 | 2019-10-18 | Jacking deviation correcting device for high-rise shear wall structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110629814A (en) * | 2019-10-18 | 2019-12-31 | 南京工业大学 | Jacking deviation rectifying device for high-rise shear wall structure and operation method |
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- 2019-10-18 CN CN201921749078.8U patent/CN211037088U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110629814A (en) * | 2019-10-18 | 2019-12-31 | 南京工业大学 | Jacking deviation rectifying device for high-rise shear wall structure and operation method |
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