CN105155406A - Hollow thin-wall pier frame bearing platform and bridge - Google Patents
Hollow thin-wall pier frame bearing platform and bridge Download PDFInfo
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- CN105155406A CN105155406A CN201510532564.4A CN201510532564A CN105155406A CN 105155406 A CN105155406 A CN 105155406A CN 201510532564 A CN201510532564 A CN 201510532564A CN 105155406 A CN105155406 A CN 105155406A
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- hollow thin
- cushion cap
- walled high
- high pier
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Abstract
The invention relates to bridge construction, and provides a hollow thin-wall pier frame bearing platform. The hollow thin-wall pier frame bearing platform comprises a hollow thin-wall pier, a bearing platform base and a plurality of pile foundations. The bearing platform base comprises a plurality of side frames, and a frame is sequentially defined by the side frames. The upper ends of all the pile foundations are supported on the lower surfaces of all the side frames. A pier body of the hollow thin-wall pier is arranged along the upper surfaces of all the side frames, and all the pile foundations are located under the pier body of the hollow thin-wall pier. The invention further provides a bridge which comprises the frame bearing platform. According to the hollow thin-wall pier frame bearing platform and the bridge, the bearing platform base is of a frame structure, and is combined with the hollow thin-wall pier, so that large bending strength in the vertical direction is achieved, and borne loads of the hollow thin-wall pier can be directly transmitted to all the foundations; the frame bearing platform has high load-bearing capacity, and the amount of concrete adopted in the manufacturing process can be lowered due to the frame structure of the bearing platform base; and when the hollow thin-wall pier frame bearing platform is applied to the bridge, the stability of the bridge can be guaranteed, and construction cost and the construction period can be optimized.
Description
Technical field
The present invention relates to bridge construction, particularly relate to a kind of hollow thin-walled high pier framework cushion cap and bridge.
Background technology
In the design of current bridge substructure, hollow thin-walled high pier has that sectional area is little, section modulus is large, be widely adopted from the good feature of heavy and light, the rigidity of structure and intensity.But pier shaft load is evenly passed to pile foundation for utilizing the absolute rigidity of cushion cap by conventional hollow Thin-Wall Piers cap design of pile theory, the solid cushion cap of the concrete that usual employing is highly larger, and outline planar dimension is larger bottom hollow thin-walled high pier, make corresponding cushion cap bulky, construct more complicated, cost is higher.
Summary of the invention
The object of the present invention is to provide a kind of hollow thin-walled high pier framework cushion cap, being intended to for solving existing hollow thin-wall pier cap size comparatively large, the problem that construction cost is higher.
The present invention is achieved in that
The invention provides a kind of hollow thin-walled high pier framework cushion cap, comprise hollow thin-walled high pier, cushion cap seat and some pile foundations, described cushion cap seat comprises the some frames enclosing successively and form framework, the upper end of each described pile foundation is all supported in the soffit of each described frame, the pier shaft of described hollow thin-walled high pier is arranged along the upper surface of each described frame, and each described pile foundation is all positioned at immediately below the pier shaft of described hollow thin-walled high pier.
Further, described cushion cap seat also comprises at least one connection beam, and the both ends of each described connection beam connect two the described frames be oppositely arranged respectively.
Further, be vertically provided with the load bearing wall separating described hollow thin-walled high pier in described hollow thin-walled high pier, the bottom support of described load bearing wall is on wherein connection beam described in.
Particularly, described cushion cap seat is rectangle, and each described connection beam all vertically connects two described frames in long limit, and each described connection beam uniform intervals is arranged.
Further, each described pile foundation is divided into two groups, and pile foundation described in two groups supports two described frames that described cushion cap seat extends along its length respectively, and each described pile foundation of each group is all arranged along corresponding described frame uniform intervals.
Particularly, the diameter of each described pile foundation is all greater than the pier shaft thickness of described hollow thin-walled high pier.
Particularly, the pier shaft thickness of described hollow thin-walled high pier is less than the thickness of each described frame.
The embodiment of the present invention also provides a kind of bridge, comprises girder, and also comprise the hollow thin-walled high pier framework cushion cap described at least one, each described hollow thin-walled high pier all supports fixing described girder.
Further, the length bearing of trend of described cushion cap seat is perpendicular to the length bearing of trend of described girder.
The present invention has following beneficial effect:
In framework cushion cap of the present invention, cushion cap seat adopts and encloses by multiple frame the frame construction formed, each pile foundation supports cushion cap seat, the pier shaft of cushion cap seat supports hollow thin-walled high pier, and each pile foundation should all be positioned at immediately below the pier shaft of hollow thin-walled high pier, the effect connecting each pile foundation and hollow thin-walled high pier can be played by cushion cap seat, and cushion cap seat and the reasonable vertical bending rigidity of hollow thin-walled high pier can be utilized to make the load-bearing of hollow thin-walled high pier can be passed in each pile foundation, namely the framework cushion cap of this structure can the load-bearing of stable support hollow thin-walled high pier, simultaneously because cushion cap seat is frame construction, the height of cushion cap seat can adopt smaller value, greatly can reduce the concrete square amount of cushion cap seat, save construction costs, reduction of erection time.Above-mentioned framework cushion cap is applied to after on bridge, the stability of girder braced structures can be ensured, and cost is lower.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The structural representation of the hollow thin-walled high pier framework cushion cap that Fig. 1 provides for the embodiment of the present invention;
Fig. 2 is that the A-A of the hollow thin-walled high pier framework cushion cap of Fig. 1 is to sectional view;
Fig. 3 is that the B-B of the hollow thin-walled high pier framework cushion cap of Fig. 1 is to sectional view;
Fig. 4 is hollow thin-walled high pier framework cushion cap and the erection of main beam structural representation of Fig. 1.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making other embodiments all obtained under creative work prerequisite, belong to the scope of protection of the invention.
See Fig. 1 and Fig. 2, the embodiment of the present invention provides a kind of hollow thin-walled high pier 11 framework cushion cap 1, comprise hollow thin-walled high pier 11, cushion cap seat 12 and some pile bases 13, hollow thin-walled high pier 11 and each pile foundation 13 are all vertically arranged, and cushion cap seat 12 is horizontally disposed with, each pile foundation 13 supports cushion cap seat 12, cushion cap seat 12 supports hollow thin-walled high pier 11 simultaneously, cushion cap seat 12 includes some frames 121, each frame 121 connects successively and encloses formation framework, certainly being reinforcing bar for each frame 121 coordinates concreting to be formed, each frame 121 is an entirety, the upper end of each pile foundation 13 is all supported in the soffit of each frame 121, and the pier shaft of hollow thin-walled high pier 11 is arranged along the upper surface of each frame 121, namely the upper surface of each frame 121 supports the pier shaft of hollow thin-walled high pier 11, and after the pier shaft of each pile foundation 13 and hollow thin-walled high pier 11 is all connected with cushion cap seat 12, each pile foundation 13 should all be positioned at immediately below the pier shaft of this hollow thin-walled high pier 11.In the present invention, the hollow thin-walled high pier 11 being positioned at top defines stable annexation with each pile foundation 13 being positioned at below by cushion cap seat 12, and cushion cap seat 12 adopts frame construction, when the pier shaft of hollow thin-walled high pier 11 is arranged its upper surface, the bending rigidity of both combining structure in the vertical directions is very large, because each pile foundation 13 is positioned at immediately below the pier shaft of hollow thin-walled high pier 11, load-bearing then on hollow thin-walled high pier 11 can directly be passed to each pile foundation 13 through cushion cap seat 12, it can not produce excessive requirement to the absolute rigidity of cushion cap seat 12 self, namely the support that the cushion cap of this structure can realize load-bearing on hollow thin-walled high pier 11 is adopted, stability is also higher.Certainly when cushion cap seat 12 is made into frame construction, the gauge of cushion cap seat 12 should be smaller with the bending rigidity requirement met on vertical direction, thus can greatly reduce the concrete square amount needed for cushion cap seat 12, not only saving construction cost, and easy construction, the reduction of erection time.Particularly, cushion cap seat 12 planar dimension and height must meet the anchoring requirement of pile foundation 13 reserved steel bar and hollow thin-walled high pier 11 pier shaft embedded bar, and cushion cap seat 12 arrangement of reinforcement need meet the force request of each frame 121 of hollow thin-walled high pier 11 pier shaft and framework composition.
Optimize above-described embodiment, cushion cap seat 12 also includes at least one connection beam 122, and the two ends of each connection beam 122 connect two frames be oppositely arranged 121 respectively.In the present embodiment, at least one connection beam 122 is had additional in the frame construction of cushion cap seat 12, two frames be oppositely arranged 121 are also connected by each connection beam 122, and it can be similar to sets up the twigs of the chaste tree in cushion cap seat 12, and then can strengthen the intensity of cushion cap seat 12 frame construction.Set-up mode for connection beam 122 should be determined according to the shape of frame construction, when the frame construction of such as cushion cap seat 12 is circular, then connection beam 122 can be arranged along its diameter, and when being square structure, then connection beam 122 can be many, and each connection beam 122 parallel interval is arranged.
See Fig. 1, for said structure, also load bearing wall 111 is vertically provided with in hollow thin-walled high pier 11, hollow-core construction in hollow thin-walled high pier 11 is divided into two parts by this load bearing wall 111, and install after on cushion cap seat 12 at hollow thin-walled high pier 11, the bottom support of load bearing wall 111 is on a wherein connection beam 122.In the present embodiment, in hollow thin-walled high pier 11, have additional load bearing wall 111 to improve the intensity of hollow thin-walled high pier 11.Because the pier shaft of hollow thin-walled high pier 11 is arranged along each frame 121 of cushion cap seat 12, then the shape of hollow thin-walled high pier 11 cross sectional shape in the horizontal direction and cushion cap seat 12 is similar, the boring of load bearing wall 111 equipartition hollow thin-walled high pier 11, a wherein connection beam 122 accordingly in cushion cap seat 12 also divides frame construction equally, load bearing wall 111 just load-bearing on this connection beam 122.By this form of structure, hollow thin-walled high pier 11 is strengthened further with the bending rigidity of the combining structure in the vertical direction of cushion cap seat 12, effectively can improve the load-bearing on hollow thin-walled high pier 11.
See Fig. 3, particularly, cushion cap seat 12 is rectangle, and it has two short frames 121 be oppositely arranged and two long margin frames 121 be oppositely arranged accordingly, all vertical two frames 121 connected in long limit of each connection beam 122, and each connection beam 122 uniform intervals is arranged.In actual applications, cushion cap seat 12 and hollow thin-walled high pier 11 cross section in the horizontal direction are all rectangle, such as cushion cap seat 12 frame 121 length is along its length 1800cm, and frame 121 length is in the width direction 705cm, the cushion cap seat 12 of corresponding this shape, it is highly 150cm, when cushion cap seat 12 supports hollow thin-walled high pier 11, for ensureing the stability between cushion cap seat 12 and hollow thin-walled high pier 11, hollow thin-walled high pier 11 can not protrude cushion cap seat 12 in the horizontal direction, its length dimension and width dimensions are all less than cushion cap seat 12, and the pier shaft thickness of hollow thin-walled high pier 11 also should be less than the width of each corresponding frame 121, the pier shaft thickness of such as hollow thin-walled high pier 11 is 50cm, then the width of cushion cap seat 12 long margin frame 121 can be 180cm, the width of short frame 121 can be 140cm, namely the width of short frame 121 can be less than the width of long margin frame 121.Each connection beam 122 uniform intervals is arranged, each connection beam 122 is similar to short frame 121, two long margin frames 121 are carried out even partition by it, strengthen the intensity of two long margin frames 121, the width of connection beam 122 can be determined according to its density of setting, when such as connection beam 122 arranges more, then its width can be smaller, and its arrange less time, corresponding width also should be larger, and it is general for said structure size, connection beam 122 can be provided with 3, and the width of every root can be 100cm, the thickness of load bearing wall 111 can be identical with the pier shaft thickness of hollow thin-walled high pier 11, also be 50cm, be less than the width of centre position connection beam 122.
Refer again to Fig. 3, further, each pile foundation 13 is divided into two groups, two groups of pile foundations 13 support on cushion cap seat 12 two frames 121 along its length respectively, namely each pile foundation 13 is supported on two long margin frames 121 respectively, and each pile foundation 13 of each group is arranged along the length direction uniform intervals of corresponding long margin frame 121.In the present embodiment, the distribution situation of the relative cushion cap seat 12 of each pile foundation 13 of refinement, because each pile foundation 13 needs to support larger load-bearing, all should be not too small to the diameter of this each pile foundation 13, and be all greater than short frame 121 due to the length of the long margin frame 121 of cushion cap seat 12 and width, then each pile foundation 13 all can be supported in two long margin frame 121 places, and each pile foundation 13 one_to_one corresponding on two long margin frames 121, be the globality of enhancing two groups of pile foundations 13 in addition, wherein a short frame 121 or wherein a connection beam 122 is may correspond between the two pile bases 13 that two long margin frames 121 are corresponding, namely in two ends of each short frame 121 and each connection beam 122 all to there being pile foundation 13, then according to the size of above-mentioned cushion cap seat 12, each long margin frame 121 may correspond to 5 pile bases 13.Particularly, because each pile foundation 13 is all positioned at immediately below the pier shaft of hollow thin-walled high pier 11, for ensureing the stability of structure, the diameter of pile foundation 13 should be greater than the thickness of the pier shaft of hollow thin-walled high pier 11, and according to the size of above-mentioned cushion cap seat 12 and hollow thin-walled high pier 11, the diameter of pile foundation 13 can be 150cm, it is slightly larger than the width of short frame 121, and be less than the width of long margin frame 121, and the edge of pile foundation 13 periphery and cushion cap seat 12 has certain distance, can be 15cm.
See Fig. 4, the embodiment of the present invention also provides a kind of bridge, and comprise girder 2 and framework cushion cap 1 that at least one is above-mentioned, each hollow thin-walled high pier 11 all supports and fixes this girder 2.In the present embodiment, be applied on bridge by above-mentioned framework cushion cap 1, and arrange number according to body of a bridge length with what determine framework cushion cap 1, the upper end of each hollow thin-walled high pier 11 is enclosed construction, carries out support fix between itself and girder 2 by some syndetons.Adopt the bridge of this structure, not only can ensure the stability of whole braced structures, can difficulty of construction be reduced simultaneously, shorten the construction period, effectively can also control construction cost.Further, when adopting framework cushion cap 1 support girder 2, the length bearing of trend of cushion cap seat 12 should perpendicular to the length bearing of trend of girder 2, form the effective support to girder 2 width, then the length direction along girder 2 evenly arranges multiple framework cushion cap 1 in interval successively, forms the effective support to girder 2 length direction.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. a hollow thin-walled high pier framework cushion cap, comprise hollow thin-walled high pier, cushion cap seat and some pile foundations, it is characterized in that: described cushion cap seat comprises the some frames enclosing successively and form framework, the upper end of each described pile foundation is all supported in the soffit of each described frame, the pier shaft of described hollow thin-walled high pier is arranged along the upper surface of each described frame, and each described pile foundation is all positioned at immediately below the pier shaft of described hollow thin-walled high pier.
2. hollow thin-walled high pier framework cushion cap as claimed in claim 1, it is characterized in that: described cushion cap seat also comprises at least one connection beam, the both ends of each described connection beam connect two the described frames be oppositely arranged respectively.
3. hollow thin-walled high pier framework cushion cap as claimed in claim 2, is characterized in that: be vertically provided with the load bearing wall separating described hollow thin-walled high pier in described hollow thin-walled high pier, and the bottom support of described load bearing wall is on wherein connection beam described in.
4. hollow thin-walled high pier framework cushion cap as claimed in claim 2, is characterized in that: described cushion cap seat is rectangle, and each described connection beam all vertically connects two described frames in long limit, and each described connection beam uniform intervals is arranged.
5. hollow thin-walled high pier framework cushion cap as claimed in claim 4, it is characterized in that: each described pile foundation is divided into two groups, pile foundation described in two groups supports two described frames that described cushion cap seat extends along its length respectively, and each described pile foundation of each group is all arranged along corresponding described frame uniform intervals.
6. hollow thin-walled high pier framework cushion cap as claimed in claim 1, is characterized in that: the diameter of each described pile foundation is all greater than the pier shaft thickness of described hollow thin-walled high pier.
7. hollow thin-walled high pier framework cushion cap as claimed in claim 1, is characterized in that: the pier shaft thickness of described hollow thin-walled high pier is less than the thickness of each described frame.
8. a bridge, comprises girder, it is characterized in that: also comprise at least one hollow thin-walled high pier framework cushion cap as described in any one of claim 1-7, each described hollow thin-walled high pier all supports fixing described girder.
9. bridge as claimed in claim 8, is characterized in that: the length bearing of trend of described cushion cap seat is perpendicular to the length bearing of trend of described girder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510532564.4A CN105155406B (en) | 2015-08-27 | 2015-08-27 | Hollow thin-walled high pier framework cushion cap and bridge |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510532564.4A CN105155406B (en) | 2015-08-27 | 2015-08-27 | Hollow thin-walled high pier framework cushion cap and bridge |
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| CN105155406A true CN105155406A (en) | 2015-12-16 |
| CN105155406B CN105155406B (en) | 2017-10-31 |
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| CN201510532564.4A Active CN105155406B (en) | 2015-08-27 | 2015-08-27 | Hollow thin-walled high pier framework cushion cap and bridge |
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Cited By (2)
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| CN106869032A (en) * | 2017-02-27 | 2017-06-20 | 中铁十九局集团有限公司 | A kind of bridge bearing platform constructing tie beam method |
| CN108374425A (en) * | 2018-02-09 | 2018-08-07 | 中交二航局第四工程有限公司 | Cushion cap and its foundation pit cushion construction structure and casting method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106869032A (en) * | 2017-02-27 | 2017-06-20 | 中铁十九局集团有限公司 | A kind of bridge bearing platform constructing tie beam method |
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| CN108374425A (en) * | 2018-02-09 | 2018-08-07 | 中交二航局第四工程有限公司 | Cushion cap and its foundation pit cushion construction structure and casting method |
| CN108374425B (en) * | 2018-02-09 | 2023-12-22 | 中交二航局第四工程有限公司 | Bearing platform and foundation pit cushion layer construction structure and pouring method thereof |
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| Publication number | Publication date |
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| CN105155406B (en) | 2017-10-31 |
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