CN103437561B - Freely-supported turns continuous interconnection box-beam structure - Google Patents
Freely-supported turns continuous interconnection box-beam structure Download PDFInfo
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- CN103437561B CN103437561B CN201310307527.4A CN201310307527A CN103437561B CN 103437561 B CN103437561 B CN 103437561B CN 201310307527 A CN201310307527 A CN 201310307527A CN 103437561 B CN103437561 B CN 103437561B
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Abstract
The present invention relates to case beam syndeton, disclose freely-supported and turn continuous interconnection box-beam structure, comprise the case beam (1) of more than a group, one end of the main steel strand cable (13) in described case beam (1) is connected with adjacent tank beam.The present invention is by being arranged on the inside of adjacent tank beam by the anchorage point of steel strand cable, staff can carry out tensioning, secondary tensioning or replacing to steel strand cable in the larger space in adjacent tank beam, simultaneously, steel strand cable can also play and connect adjacent tank beam action, improves the stability of the connection between case beam.
Description
Technical field
The present invention relates to case beam syndeton, particularly relate to freely-supported and turn continuous interconnection box-beam structure.
Background technology
In prior art, because the anchorage point of steel hinge rope is distributed in the two ends of case beam, and after the steel hinge rope that case beam itself is joined relaxes, due to the shrinkage joint narrow space between case beam and case beam, staff cannot enter, and the steel strand cable therefore in case beam can not secondary tensioning, also cannot change.The meaning arranging external tendon is secondary tensioning and replacing, because narrow space can not realize, also makes the design of external tendon lose meaning.
Summary of the invention
The present invention is directed to the anchorage point of steel strand cable in prior art between case beam, because the spacing between case beam is little, staff cannot enter and carry out the shortcoming such as tensioning and replacing to the steel strand cable in case beam, providing a kind of anchorage point by steel strand cable is arranged in adjacent tank beam, staff can carry out tensioning and replacing to steel strand cable in adjacent tank beam, simultaneously, steel strand cable can also play and connect adjacent tank beam action, and the freely-supported that improve the stability of the connection between case beam turns continuous interconnection box-beam structure.
In order to solve the problems of the technologies described above, the present invention is solved by following technical proposals:
Freely-supported turns continuous interconnection box-beam structure, comprises the case beam of more than a group, and one end of the main steel strand cable in described case beam is connected with adjacent tank beam.The lower end of case beam is free end.The middle part of main steel strand cable is connected with the bottom of case beam.
As preferably, described adjacent tank beam comprises right adjacent case beam, and be right hollow space in right adjacent case beam, be provided with a right anchorage point in right hollow space, main steel strand cable right-hand member is connected with a right anchorage point.
As preferably, the left end of described main steel strand cable is connected with the main anchorage point being arranged on case beam outside.
As preferably, described adjacent tank beam also comprises left adjacent case beam, and be left hollow space in left adjacent case beam, be provided with right two anchorage points in left hollow space, the left end of main steel strand cable is connected with right two anchorage points.
As preferably, arrange left adjacent case beam on the left of described case beam, the right-hand member of the left main steel strand cable in left adjacent case beam is connected with the first anchorage point be arranged in case beam, and the right-hand member of the right main steel strand cable in right adjacent case beam is connected with the anchorage point of right adjacent case beam outside.
As preferably, the left main steel strand cable in described left adjacent case beam is connected with the first from left anchorage point arranged in case beam, and the right main steel strand cable in right adjacent case beam is connected with the interior right side one anchorage point arranged of case beam.
As preferably, be also provided with horizontal steel strand cable between described case beam and adjacent tank beam, case beam is connected by tensioning with the lower end of adjacent tank beam.
As preferably, described case beam is prestress steel concrete case beam.
As preferably, be also provided with the steering gear of steel strand cable in described case beam, main steel strand cable is through the steering gear of steel strand cable.
As preferably, described prestress steel concrete case beam is corrugated sheet steel case beam, and be welded with stiffener in the trough of the Wavelike steel webplate in corrugated sheet steel case beam, the steering gear of steel strand cable is arranged on stiffener.
The present invention is by being arranged on the inside of adjacent tank beam by the anchorage point of steel strand cable, staff can carry out tensioning and replacing to steel strand cable in adjacent tank beam, meanwhile, steel strand cable can also play and connect adjacent tank beam action, improves the stability of the connection between case beam.
Accompanying drawing explanation
Fig. 1 is the arrangement figure of steel strand cable in prior art raising middle flask beam.
Fig. 2 is the structural representation of the embodiment of the present invention 1.
Fig. 3 is the structural representation of the embodiment of the present invention 2.
Wherein 1-case beam, 2-left adjacent case beam, 3-right adjacent case beam, 4-horizontal steel strand cable, 11-hollow space, a 12-right anchorage point, 13-main steel strand cable, 14-main anchorage point, the 15-the first anchorage point, 21-left hollow space, 22-right two anchorage points, 23-left main steel strand cable, 31-right hollow space, a 32-right anchorage point, 33-right main steel strand cable.
Detailed description of the invention
Below in conjunction with accompanying drawing 1 to accompanying drawing 3 and detailed description of the invention, the present invention is described in further detail:
Embodiment 1
Freely-supported turns continuous interconnection box-beam structure, as shown in Figure 1, 2, comprises the case beam 1 of more than a group, and one end of the main steel strand cable 13 in described case beam 1 is connected with adjacent tank beam.Moved in adjacent beam-ends by the anchorage point of main steel strand cable, because space comparatively large in case beam, enough staff enter, and therefore can carry out secondary to steel strand cable and tighten up or change rope.
Adjacent tank beam comprises right adjacent case beam 3, and be right hollow space 31 in right adjacent case beam 3, be provided with a right anchorage point 32 in right hollow space 31, main steel strand cable 13 right-hand member is connected with a right anchorage point 32.The left end of main steel strand cable 13 is connected with the main anchorage point 14 being arranged on case beam 1 outside.Two adjacent case beams crossed over by main steel strand cable 13, improve the bonding strength between two adjacent tank beams, meanwhile, have and change the advantages such as convenient.
Arrange left adjacent case beam 2 on the left of case beam 1, the right-hand member of the left main steel strand cable 23 in left adjacent case beam 2 is connected with the first anchorage point 15 be arranged in case beam 1, and the right-hand member of the right main steel strand cable 33 in right adjacent case beam 3 is connected with the anchorage point of right adjacent case beam 3 outside.
Also be provided with horizontal steel strand cable 4 between case beam 1 and adjacent tank beam, case beam 1 is connected by tensioning with the lower end of adjacent tank beam.Make to occur between case beam and case beam directly to hold out against.By arranging horizontal steel strand cable 5, improve the stability connected between adjacent tank beam.
Case beam 1 is prestress steel concrete case beam.Also be provided with the steering gear of steel strand cable in case beam 1, main steel strand cable 13 is through the steering gear of steel strand cable.Prestress steel concrete case beam is corrugated sheet steel case beam, is welded with stiffener in the trough of the Wavelike steel webplate in corrugated sheet steel case beam, and the steering gear of steel strand cable is arranged on stiffener.
Because the quantity of cross wall is limited in existing case beam, therefore spacing is also fixing, so often less as the fixed point quantity of steering gear with cross wall, the arc line type making steel cut with scissors rope becomes broken line type, utilize in the trough of Wavelike steel webplate and be welded stiffener, stiffener installs multiple steering gear according to the line style of steel hinge rope, makes steel cut with scissors the line style smoothness of rope, meet load requirement.In the trough of Wavelike steel webplate, be welded with stiffener in corrugated sheet steel case beam, the steering gear of steel strand cable is arranged on stiffener.Utilize the fixed point of stiffener as steering gear of Wavelike steel webplate, can make multiple steering gear makes the line style of steel hinge rope reach optimum state, when in use, when case beam produces downwarp, regulating density degree and the position of steering gear, when carrying out two times tensioning, can control and alleviate the situation of case beam downwarp, make steel cut with scissors bands type and reach optimum state, maintenance cost is low.
It is good that this freely-supported turns continuous print operability, easy construction, and maintenance cost is low, good economy performance.
Embodiment 2
Freely-supported turns continuous interconnection box-beam structure, as shown in Figure 1, 2, comprises the case beam 1 of more than a group, and one end of the main steel strand cable 13 in described case beam 1 is connected with adjacent tank beam.
Arrange anchorage point in adjacent tank beam, main steel strand cable 13 is connected with the anchorage point arranged in adjacent tank beam.Therefore, only need can carry out corresponding operating in adjacent tank beam when replacing or tensioning steel strand cable.
Adjacent tank beam comprises right adjacent case beam 3, and be right hollow space 31 in right adjacent case beam 3, be provided with a right anchorage point 32 in right hollow space 31, main steel strand cable 13 right-hand member is connected with a right anchorage point 32.
Adjacent tank beam also comprises left adjacent case beam 2, and be left hollow space 21 in left adjacent case beam 2, be provided with right two anchorage points 22 in left hollow space 21, the left end of main steel strand cable 13 is connected with right two anchorage points 22.Three case beams crossed over by main steel strand cable 13, improve the bonding strength between three case beams, only need left adjacent case beam 2 can complete corresponding work in right adjacent case beam 3, have tensioning convenient, change the advantages such as quick when replacing or tensioning.
Left main steel strand cable 23 in left adjacent case beam 2 is connected with the first from left anchorage point 15 arranged in case beam 1, and the right main steel strand cable 33 in right adjacent case beam 3 is connected with the right side one anchorage point 12 arranged in case beam 1.
Also be provided with horizontal steel strand cable 4 between case beam 1 and adjacent tank beam, case beam 1 is connected by tensioning with the lower end of adjacent tank beam.
Case beam 1 is prestress steel concrete case beam.Also be provided with the steering gear of steel strand cable in case beam 1, main steel strand cable 13 is through the steering gear of steel strand cable.Prestress steel concrete case beam is corrugated sheet steel case beam, is welded with stiffener in the trough of the Wavelike steel webplate in corrugated sheet steel case beam, and the steering gear of steel strand cable is arranged on stiffener.
In a word, the foregoing is only preferred embodiment of the present invention, all equalizations done according to the present patent application the scope of the claims change and modify, and all should belong to the covering scope of patent of the present invention.
Claims (8)
1. freely-supported turns continuous interconnection box-beam structure, comprises the case beam (1) of more than a group, it is characterized in that: one end of the main steel strand cable (13) in described case beam (1) is connected with adjacent tank beam; Described adjacent tank beam comprises right adjacent case beam (3), be right hollow space (31) in right adjacent case beam (3), be provided with a right anchorage point (32) in right hollow space (31), main steel strand cable (13) right-hand member is connected with a right anchorage point (32); Described case beam (1) left side arranges left adjacent case beam (2), the right-hand member of the left main steel strand cable (23) in left adjacent case beam (2) is connected with the first anchorage point (15) be arranged in case beam (1), and the anchorage point that the right-hand member of the right main steel strand cable (33) in right adjacent case beam (3) is outside with right adjacent case beam (3) is connected.
2. freely-supported according to claim 1 turns continuous interconnection box-beam structure, it is characterized in that: the main anchorage point (14) that the left end of described main steel strand cable (13) is outside with being arranged on case beam (1) is connected.
3. freely-supported according to claim 1 turns continuous interconnection box-beam structure, it is characterized in that: described adjacent tank beam also comprises left adjacent case beam (2), be left hollow space (21) in left adjacent case beam (2), be provided with right two anchorage points (22) in left hollow space (21), the left end of main steel strand cable (13) is connected with right two anchorage points (22).
4. freely-supported according to claim 3 turns continuous interconnection box-beam structure, it is characterized in that: the left main steel strand cable (23) in described left adjacent case beam (2) is connected with the first from left anchorage point (15) arranged in case beam (1), the right main steel strand cable (33) in right adjacent case beam (3) is connected with the right side one anchorage point (12) arranged in case beam (1).
5. freely-supported according to claim 1 turns continuous interconnection box-beam structure, it is characterized in that: be also provided with horizontal steel strand cable (4) between described case beam (1) and adjacent tank beam, case beam (1) is connected by tensioning with the lower end of adjacent tank beam.
6. freely-supported according to claim 1 turns continuous interconnection box-beam structure, it is characterized in that: described case beam (1) is prestress steel concrete case beam.
7. freely-supported according to claim 1 turns continuous interconnection box-beam structure, it is characterized in that: be also provided with the steering gear of steel strand cable in described case beam (1), and main steel strand cable (13) is through the steering gear of steel strand cable.
8. freely-supported according to claim 6 turns continuous interconnection box-beam structure, it is characterized in that: described prestress steel concrete case beam is corrugated sheet steel case beam, be welded with stiffener in the trough of the Wavelike steel webplate in corrugated sheet steel case beam, the steering gear of steel strand cable is arranged on stiffener.
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| CN201310307527.4A CN103437561B (en) | 2013-07-18 | 2013-07-18 | Freely-supported turns continuous interconnection box-beam structure |
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| CN201310307527.4A CN103437561B (en) | 2013-07-18 | 2013-07-18 | Freely-supported turns continuous interconnection box-beam structure |
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| CN103437561B true CN103437561B (en) | 2015-10-14 |
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| CN106869506A (en) * | 2017-03-24 | 2017-06-20 | 贵州建工集团有限公司 | A kind of construction method for solving large span composite floor double-layer double-direction reinforcement installation |
| CN112458868B (en) * | 2020-11-05 | 2022-06-28 | 滁州职业技术学院 | Corrugated steel web beam bridge capable of improving overall crack resistance |
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