CN210194449U - Tower beam temporary consolidation structure for construction of main beam of semi-floating body system cable-stayed bridge - Google Patents
Tower beam temporary consolidation structure for construction of main beam of semi-floating body system cable-stayed bridge Download PDFInfo
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- CN210194449U CN210194449U CN201920990163.7U CN201920990163U CN210194449U CN 210194449 U CN210194449 U CN 210194449U CN 201920990163 U CN201920990163 U CN 201920990163U CN 210194449 U CN210194449 U CN 210194449U
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- 238000010276 construction Methods 0.000 title claims abstract description 26
- 238000007596 consolidation process Methods 0.000 title claims abstract description 20
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 57
- 239000010959 steel Substances 0.000 claims abstract description 57
- 238000002360 preparation method Methods 0.000 claims 1
- 239000011150 reinforced concrete Substances 0.000 description 3
- 238000004873 anchoring Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000011513 prestressed concrete Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The utility model discloses a body is temporary consolidation structure of girder for construction of cable-stay bridge is tied to half floating body, including four midspan side steel mounds and sidespan side steel mounds. Each mid-span side steel pier and each side-span side steel pier respectively comprise an upper cover plate, a lower cover plate, two vertical plates, four upper bolts and four lower bolts; the upper cover plate and the lower cover plate are both square plates with the same size and structure; two rows of bolt connecting holes are formed in the middle parts of the upper cover plate and the lower cover plate, and the number of the bolt connections in each row is two; the two vertical plates are connected between the upper cover plate and the lower cover plate; the four upper bolts and the four lower bolts are correspondingly connected in the four bolt connecting holes on the upper cover plate and the lower cover plate one by one; and four upper and lower bolts on each mid-span side steel pier and each side-span side steel pier are correspondingly connected in an upper sleeve embedded in the No. 0 block box girder and four lower sleeves embedded in the lower cross beam of the mid-span side tower limb of the bridge tower one by one. The utility model discloses a tower beam concreties structure temporarily can bear indulge, horizontal load and the uneven moment of flexure of part, provides reliable assurance for the bridge construction.
Description
Technical Field
The utility model relates to a temporary fixed structure of tower beam for construction of girder of cable-stayed bridge of semi-floating body system.
Background
The total length of the cross Yinghe short pylon cable-stayed bridge is 410m, and the main span is 94.2+220+94.2 m. The main bridge is a double-tower double-cable-surface prestressed concrete short-tower cable-stayed bridge. A semi-floating structure system with separated tower beams is adopted. The short-tower cable-stayed bridge is provided with two main piers and two side piers; the two main piers and the two side piers are two-stage type and are connected with the bearing platform and the pile group foundation. The two main piers are positioned in the main channel, and part of bearing platforms of the two side piers are embedded into the river bank. The bridge towers on the two main piers are longitudinally in an A shape, the transverse lower part of the bridge tower is provided with a door arch-shaped lower cross beam, and the transverse upper part of the bridge tower is provided with an upper cross beam in an H shape. The bridge tower is of a reinforced concrete structure, the lower cross beam of the bridge tower is provided with transverse prestress, the bridge tower, namely a cable tower, is of a longitudinal A shape, the bridge tower is of a spatial truss type, the distance between longitudinal double limbs of the tower bottom is 16m, and the distance between beam tops is 8.895 m. The main beam is a single-box double-chamber prestressed concrete continuous variable cross-section box beam. When the girder construction is carried out, the cantilever hanging basket construction is adopted. When the concrete pouring of the No. 1 section of the main beam is carried out, the four permanent supports on the bridge tower bear vertical load. Because the beam bodies on the two sides of the bridge tower are asymmetric, unbalanced bending moment can be generated, and the permanent support can not bear unbalanced moment generated in construction, a temporary anchoring measure needs to be adopted in construction, the temporary anchoring measure is an important measure for ensuring the effective control of the construction state and the construction safety, and can provide vertical support, resist various unbalanced moments generated in construction and ensure the balance of a T-shaped structure.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art's defect and provide a body is temporary consolidation structure of tower beam for construction of cable-stay bridge is tied to semi-floating body, it can bear indulge, horizontal load and the uneven moment of flexure of part, overcomes the interim consolidation structure of traditional reinforced concrete and cuts off the cycle length, influences the problem that the roof beam body closed a front system conversion, provides reliable assurance for the bridge construction.
The purpose of the utility model is realized like this: a temporary tower beam consolidation structure for construction of a main beam of a semi-floating body system cable-stayed bridge comprises four mid-span side steel piers arranged between a lower cross beam of a mid-span side tower limb of an A-type bridge tower and a No. 0 box girder and four side-span side steel piers arranged between a lower cross beam of a side-span side tower limb of the A-type bridge tower and two No. 0 box girders; wherein,
each mid-span side steel pier and each side-span side steel pier respectively comprise an upper cover plate, a lower cover plate, two vertical plates, four upper bolts and four lower bolts;
the upper cover plate and the lower cover plate are identical in size and structure and are square plates;
two rows of bolt connecting holes are correspondingly formed in the middle of the upper cover plate and the middle of the lower cover plate, and the number of the bolt connecting holes in each row is two;
the two vertical plates are connected between the bottom surface of the upper cover plate and the top surface of the lower cover plate in a mode of being parallel to a central connecting line of the two rows of bolt connecting holes on the upper cover plate and the lower cover plate;
the four upper bolts are correspondingly connected into the four bolt connecting holes on the upper cover plate one by one;
the four lower bolts are correspondingly connected in the four bolt connecting holes on the lower cover plate one by one;
the four lower bolts on each mid-span side steel pier are correspondingly connected into four lower sleeves embedded in the lower cross beams of the mid-span side tower limbs of the bridge tower; four upper bolts on each midspan side steel pier are correspondingly connected in upper sleeves pre-embedded in the No. 0 block box girder one by one;
the four lower bolts on each side span side steel pier are correspondingly connected into four lower sleeves embedded in the lower cross beams of the mid-span side tower limbs of the bridge tower; and four upper bolts on each side span side steel pier are correspondingly connected in upper sleeves pre-embedded in the No. 0 block box girder one by one.
The temporary tower beam consolidation structure for the construction of the main beam of the semi-floating body system cable-stayed bridge is characterized in that bolt connecting holes in an upper cover plate and a lower cover plate of the mid-span side steel pier are waist-shaped holes; and the bolt connecting holes on the upper cover plate and the lower cover plate of the side span side steel pier are threaded holes.
The temporary tower beam consolidation structure for the construction of the main beam of the semi-floating body system cable-stayed bridge is characterized in that each mid-span side steel pier and each side-span side steel pier further comprise four rib plates, and the four rib plates are connected between the bottom surface of the upper cover plate and the top surface of the lower cover plate in a mode of being perpendicular to a central connecting line of two rows of bolt connecting holes in the upper cover plate and the lower cover plate and are located on the outer sides of the two vertical plates in a pair mode.
The utility model discloses a body system cable-stay bridge's girder construction of semi-floating is with tower roof beam temporary consolidation structure, adopt upper and lower apron, the steel mound is constituteed to two risers and four floor, and through the upper and lower bolted connection in pre-buried sleeve on bridge tower and No. 0 piece case roof beam, can not only bear the bridge indulge in the work progress, horizontal load and the unbalanced moment of flexure of part, overcome the interim consolidation structure of traditional reinforced concrete and cut off the cycle length, influence the problem that the roof beam body closes the conversion of dragon front body system, provide reliable assurance for the bridge construction.
Drawings
FIG. 1 is a schematic view of a temporary consolidation structure of a tower beam for main beam construction of a semi-floating body system cable-stayed bridge according to the present invention;
FIG. 2 is a side view of FIG. 1;
fig. 3 is a longitudinal elevation view of a steel pier in the temporary tower beam consolidation structure of the present invention;
fig. 4 is a transverse elevation view of a steel pier in the temporary tower beam consolidation structure of the present invention;
FIG. 5 is a top view of a mid-span side steel pier in a tower beam temporary consolidation structure of the present invention;
fig. 6 is a top view of the steel pier on the side span in the temporary tower beam consolidation structure of the present invention.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
Referring to fig. 1 to 6, the temporary girder fixing structure for constructing the main girder of the semi-floating body system cable-stayed bridge of the present invention includes four midspan side steel piers 10 disposed between the bottom end beam of the midspan side tower limb of the a-type bridge tower 100 and the No. 0 box girder 200, and four side span side steel piers 10' disposed between the bottom end beam of the side span tower limb of the a-type bridge tower and the two No. 0 box girders.
Each mid-span side steel pier 10 and each side-span side steel pier 10' respectively comprise an upper cover plate 11, a lower cover plate 12, two vertical plates 13, four rib plates 14, four upper bolts 15 and four lower bolts 16; wherein:
the upper cover plate 11 and the lower cover plate 12 are identical in size and structure and are square plates;
two rows of bolt connecting holes are correspondingly formed in the middle of the upper cover plate 11 and the middle of the lower cover plate 12, and the number of the bolt connecting holes in each row is two;
the bolt connecting holes on the upper cover plate 11 and the lower cover plate 12 of the mid-span side steel pier 10 are waist-shaped holes (see figure 5); the bolt connecting holes on the upper cover plate 11 and the lower cover plate 12 of the side span side steel pier 10' are threaded holes (see figure 6);
the two vertical plates 13 are welded and connected between the bottom surface of the upper cover plate 11 and the top surface of the lower cover plate 12 in a mode of being parallel to the central connecting line of the two rows of bolt connecting holes on the upper cover plate 11 and the lower cover plate 12;
the four rib plates 14 are connected between the bottom surface of the upper cover plate 11 and the top surface of the lower cover plate 12 in a mode of being vertical to a central connecting line of two rows of bolt connecting holes on the upper cover plate 11 and the lower cover plate 12 and are located on the outer sides of the two vertical plates 13 in a pair;
the four upper bolts 15 are correspondingly connected in the four bolt connecting holes on the upper cover plate 11 one by one;
the four lower bolts 16 are correspondingly connected in the four bolt connecting holes on the lower cover plate 12 one by one;
the four lower bolts 16 on each mid-span side steel pier 10 are correspondingly connected in four lower sleeves 160 pre-embedded on the lower cross beam of the mid-span side tower limb of the bridge tower 100 one by one; the four upper bolts 15 on each midspan side steel pier 10 are correspondingly connected in the upper sleeves 150 pre-embedded in the No. 0 block box girder 200 one by one;
the four lower bolts 16 on each side span side steel pier 10' are correspondingly connected to four lower sleeves 160 pre-embedded on the lower cross beam of the mid-span side tower limb of the bridge tower 100 one by one; the four upper bolts 15 on each side span side steel pier 10' are connected one-to-one in the upper sleeves 150 pre-embedded in the No. 0 block box girder 200.
Because be equipped with two permanent supports 20 and a horizontal stop device 30 on the bottom end rail of the midspan side column limb of the pylon 100 of cable-stay bridge and on the bottom end rail of the sidespan side column limb respectively, consequently the utility model discloses a four midspan side steel mound 10 in the temporary consolidation structure of girder for the girder construction of short tower cable-stay bridge establishes between two permanent supports 20 on the bottom end rail of midspan side column limb and establishes the outside at horizontal stop device 30 with the equipartition. The four middle side steel piers 10' are arranged between two permanent supports 20 on the lower beam of the side-span side tower limb and are uniformly arranged outside the transverse limiting device 30. The design requires that the four mid-span side steel piers 10 and two permanent supports 20 arranged on the lower cross beam of the mid-span side tower limb of the bridge tower 100 are stressed together, and the four side-span side steel piers 10 'and two permanent supports 20 arranged on the lower cross beam of the side-span side tower limb of the bridge tower 100 are stressed together, so that the heights of the top surfaces of the mid-span side steel piers 10 and the side-span side steel piers 10' are 3mm lower than the heights of the top surfaces of the permanent supports 20 when the mid-span side steel piers 10 and the side-span. The four mid-span side steel piers 10 realize the longitudinal relaxation of the bridge through the waist-shaped holes on the upper cover plate 11 and the lower cover plate 12, namely the bridge can move longitudinally; the side span side steel pier 10' is screwed and fixed with the bridge and the bridge tower through threaded holes on the upper cover plate 11 and the lower cover plate 12. After the bridge is folded, the upper bolt 15 and the lower bolt 16 of each mid-span side steel pier 10 and each side-span side steel pier 10' can be detached from the upper sleeve 150 and the lower sleeve 160 respectively, so that the permanent support 20 bears the vertical load of the bridge.
The utility model discloses a body is interim consolidation structure of tower beam for construction of girder of cable-stay bridge partly floats, adopts upper and lower apron, two risers and four floor component steel mounds to through upper and lower bolted connection in pre-buried sleeve on bridge tower and No. 0 piece case roof beam, can not only bear bridge indulge in the work progress, horizontal load and the unbalanced moment of flexure of part, provide reliable assurance for the bridge construction, satisfied the requirement that the bridge folds back and demolish fast moreover.
The above embodiments are provided only for the purpose of illustration, not for the limitation of the present invention, and those skilled in the relevant art can make various changes or modifications without departing from the spirit and scope of the present invention, therefore, all equivalent technical solutions should also belong to the scope of the present invention, and should be defined by the claims.
Claims (3)
1. A temporary tower beam consolidation structure for construction of a main beam of a semi-floating body system cable-stayed bridge comprises four mid-span side steel piers arranged between a lower cross beam of a mid-span side tower limb of an A-type bridge tower and a No. 0 box girder and four side-span side steel piers arranged between a lower cross beam of a side-span side tower limb of the A-type bridge tower and two No. 0 box girders; it is characterized in that the preparation method is characterized in that,
each mid-span side steel pier and each side-span side steel pier respectively comprise an upper cover plate, a lower cover plate, two vertical plates, four upper bolts and four lower bolts;
the upper cover plate and the lower cover plate are identical in size and structure and are square plates;
two rows of bolt connecting holes are correspondingly formed in the middle of the upper cover plate and the middle of the lower cover plate, and the number of the bolt connecting holes in each row is two;
the two vertical plates are connected between the bottom surface of the upper cover plate and the top surface of the lower cover plate in a mode of being parallel to a central connecting line of the two rows of bolt connecting holes on the upper cover plate and the lower cover plate;
the four upper bolts are correspondingly connected into the four bolt connecting holes on the upper cover plate one by one;
the four lower bolts are correspondingly connected in the four bolt connecting holes on the lower cover plate one by one;
the four lower bolts on each mid-span side steel pier are correspondingly connected into four lower sleeves embedded in the lower cross beams of the mid-span side tower limbs of the bridge tower; four upper bolts on each midspan side steel pier are correspondingly connected in upper sleeves pre-embedded in the No. 0 block box girder one by one;
the four lower bolts on each side span side steel pier are correspondingly connected into four lower sleeves embedded in the lower cross beams of the mid-span side tower limbs of the bridge tower; and four upper bolts on each side span side steel pier are correspondingly connected in upper sleeves pre-embedded in the No. 0 block box girder one by one.
2. The temporary tower beam consolidation structure for the construction of the main beam of the semi-floating body system cable-stayed bridge according to claim 1, wherein bolt connection holes on an upper cover plate and a lower cover plate of the mid-span side steel pier are waist-shaped holes; and the bolt connecting holes on the upper cover plate and the lower cover plate of the side span side steel pier are threaded holes.
3. The temporary tower girder consolidation structure for the construction of the main girder of the semi-floating body system cable-stayed bridge according to claim 1, wherein each of the mid-span side steel piers and each of the side-span side steel piers further comprises four rib plates which are connected between the bottom surface of the upper cover plate and the top surface of the lower cover plate in a manner of being perpendicular to a central connecting line of two rows of bolt connecting holes on the upper cover plate and the lower cover plate and are located at the outer sides of the two vertical plates in a pair.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920990163.7U CN210194449U (en) | 2019-06-26 | 2019-06-26 | Tower beam temporary consolidation structure for construction of main beam of semi-floating body system cable-stayed bridge |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920990163.7U CN210194449U (en) | 2019-06-26 | 2019-06-26 | Tower beam temporary consolidation structure for construction of main beam of semi-floating body system cable-stayed bridge |
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| CN210194449U true CN210194449U (en) | 2020-03-27 |
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| CN201920990163.7U Active CN210194449U (en) | 2019-06-26 | 2019-06-26 | Tower beam temporary consolidation structure for construction of main beam of semi-floating body system cable-stayed bridge |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112695637A (en) * | 2020-12-24 | 2021-04-23 | 云南交投公路建设第二工程有限公司 | Tower beam temporary consolidation supporting structure easy to unload quickly and manufacturing and construction process |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112695637A (en) * | 2020-12-24 | 2021-04-23 | 云南交投公路建设第二工程有限公司 | Tower beam temporary consolidation supporting structure easy to unload quickly and manufacturing and construction process |
| CN112695637B (en) * | 2020-12-24 | 2022-11-29 | 云南交投公路建设第二工程有限公司 | Tower beam temporary consolidation supporting structure easy to unload quickly and manufacturing and construction process |
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Address after: 200032 No. 139, Xuhui District, Shanghai, Pingjiang Road Patentee after: CCCC THIRD HARBOR ENGINEERING Co.,Ltd. Patentee after: CCCC Third Aviation Bureau Sixth Engineering (Xiamen) Co.,Ltd. Patentee after: XIAMEN BRANCH OF CCCC THIRD HARBOR ENGINEERING Co.,Ltd. Address before: 200032 No. 139, Xuhui District, Shanghai, Pingjiang Road Patentee before: CCCC THIRD HARBOR ENGINEERING Co.,Ltd. Patentee before: CCCC Sanya (Xiamen) Engineering Co.,Ltd. Patentee before: XIAMEN BRANCH OF CCCC THIRD HARBOR ENGINEERING Co.,Ltd. |