CN104047222A - Bridge structure near mountain and by river and construction method of bridge - Google Patents
Bridge structure near mountain and by river and construction method of bridge Download PDFInfo
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- CN104047222A CN104047222A CN201310081354.9A CN201310081354A CN104047222A CN 104047222 A CN104047222 A CN 104047222A CN 201310081354 A CN201310081354 A CN 201310081354A CN 104047222 A CN104047222 A CN 104047222A
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Abstract
The invention discloses a construction method of a bridge structure near the mountain and by the river. The method comprises the following steps: A, digging the mountain at a mountain slope, pouring a ground beam supporting cushion block, and arranging a rock anchoring rod below the ground beam supporting cushion block; B, constructing a drilling pile at the side by the river to form a pile-type bridge pier, and arranging a supporting seat on the drilling pile; C, integrally prefabricating a hollow plate beam with a bracket; D, sequentially hoisting the hollow plate beams, placing the transverse side of the hollow plate beam on the ground beam supporting cushion block, placing the other side of the hollow plate beam on the top of the bridge pier, and connecting the hollow plate beams in the vertical direction through brackets which are arranged in the vertical direction; E, installing guardrails and paving the pavement. By constructing the bridge by the mountain and near the lake, the harmony between the bridge and the environment can be maintained, the excavation volume caused by the cushioning and reducing the slope for a high road can be reduced, the quantity of a high-pile carrying platform and the bridge piers can also be reduced, the construction convenience can be greatly improved, and effective and systematic structural systems and facilities can be provided for the design and construction of the bridge.
Description
Technical field
The present invention relates to be close to mountain bridge near water in technical field of bridge engineering, relate to concretely one and be close to mountain bridge construction and construction method thereof near water.
Background technology
Along with the development of infrastructure construction, distribute in more city or scenic spot on the mountain ridge, more and more road is applied near the mountain.In the precipitous position of massif, ground level road is difficult to pass through, and generally adopts hangar tunnel or bridge scheme.
The brush slope that adopts shed hole structure to reduce limit to face upward slope, has reduced the destruction to natural vegetation to greatest extent, after native stone backfill, also can plant some green plantss.But under the conditions such as weak massif, when hangar tunnel construction, difficulty is larger, especially first want first excavation slope to form the basis of hangar tunnel at steep hill place near water, the engineering quantity of excavation is large, and the basis of hangar tunnel must be arranged on stable ground.Natural geology can not be served as the basis of hangar tunnel, if carry out ground processing or pile foundation, its expense will increase substantially.Meanwhile, hangar tunnel need to be considered antiskid, and its entirety is in permanent bias state, adds (river) lake water to the washing away for a long time of embankment, basis is existed to adverse effect, and then affect the structural safety of hangar tunnel.
Adopt bridge scheme comparatively loose in the design of road alignment, adjustable space is larger.The construction of bridge construction will make the impact on view be down to minimum, and linear can being substantially consistent with road used function division clear and definite, and bridge construction difficulty is relatively little, foundation construction part, bottom is set up platform or is applied cofferdam, and Superstructure Construction is comparatively efficient and convenient, and risk is relatively little.Meanwhile, compare hangar tunnel, the whole structure after bridge builds up is comparatively succinct slim and graceful.
Conventional bridge construction construction, the general form of structure such as highrise pile cap that adopt in water, are applied to and are close to mountain near water under condition, all have certain limitation in technology and economic aspect.
Summary of the invention
The object of the invention is to provide one to be close to mountain bridge construction near water, the requirement that can effectively solve steep hill and partly construct a bridge near water.
To achieve these goals, technical scheme of the present invention is as follows: one is close to mountain bridge construction near water, comprise bridge deck structure, it is characterized in that this bridge construction is close to mountain one side and will grade beam cradle be set after massif otch, described grade beam cradle is fixed by rock bolt and massif; A side adopts pile-column bridge pier near water; Bridge deck structure adopts band bracket integrated precast hollow slab beam, and the horizontal side of this hollow slab beam is held on grade beam cradle, and opposite side is placed in bridge pier top.Described pile-column bridge pier bottom arranges bored pile, and pier column is directly connected with bored pile, and pier column top arranges laminated rubber bearing, and grade beam cradle top is also provided with laminated rubber bearing, and this hollow slab beam is shelved on neoprene bearing.This hollow slab beam structure longitudinally interconnects by bracket is set.This hollow slab beam end is provided with end floor beam, and a side crossbeam arranges bracket, and the local thickening of opposite side end floor beam, arranges lower bracket, between adjacent hollow plate-girder, interconnects by upper and lower bracket.Described hollow slab beam is 6.0～20.0m across footpath, and often across being simply supported beam, hollow slab beam deck-molding is 0.52～0.90m, the limited block that horizontally set matches with pier column, the connected rubber cushion blocks bearing that arranges between bracket up and down.Described grade beam cradle is fixed by rock bolt and massif.
Another object of the present invention is to a kind of mountain construction method of bridge construction near water of being close to, the requirement that can effectively solve steep hill and partly construct a bridge near water.
To achieve these goals, technical scheme of the present invention is: a kind of mountain construction method of bridge construction near water of being close to, comprises the following steps: A, on hillside, carry out massif excavation, build grade beam cradle, divide into rock bolt; B, near water, a side is carried out drilled pile construction, forms pile-column bridge pier, and capital arranges bearing; C, prefabricated band bracket Integral hollow plate-girder; D, lift hollow slab beam successively, the horizontal side of this hollow slab beam is held on grade beam cradle, and opposite side is placed in bridge pier top, and the bracket up and down that this hollow slab beam longitudinally arranges by termination interconnects; E, carry out guard rail, paving construction.
The present invention is by facing the construction of lake bridge to being close to mountain, can keep the harmony with environment, reduce high cutting and cut the excavation treating capacity that process on slope, also can reduce highrise pile cap and the bridge pier scale of construction, significantly improve construction convenience, for such bridge design construction provides effectively, the structural system facility of system.The present invention is by the research of bridge construction of being situated at the foot of a hill and beside a stream, for solve be close to mountain near water side build city or road in scenic area a kind of advanced technology, safe and reliable, economical rationality, succinct type of bridge attractive in appearance be provided.Bridge construction is focused on landscape effect, makes it harmonious with overall program distribution along the line, surrounding enviroment and topography and geomorphology etc.
Brief description of the drawings
Fig. 1 is bridge construction schematic cross-sectional view of the present invention.
Fig. 2 is bridge construction elevation of the present invention.
Detailed description of the invention
Below in conjunction with specific embodiments of the invention and accompanying drawing, the invention will be further described.Should be understood that these embodiment are only not used in the scope of restriction patent of the present invention for patent of the present invention is described.In addition should be understood that those skilled in the art can make various changes or modifications the present invention after having read the content of patent instruction of the present invention, these equivalent form of values fall within the application's appended claims limited range equally.
One is close to mountain Bridge Types near water, it is characterized in that this bridge construction is close to mountain one side by grade beam cradle 2 is set after massif otch, places bearing above; A side adopts pile-column bridge pier 5 near water, and Dun Ding places bearing; Bridge deck structure adopts band bracket integrated precast hollow slab beam 1.
Be close to mountain near water bridge construction build near water, bridge present position physical features is precipitous, and difficulty of construction is larger, aspect Superstructure Construction, conventional support cast-in-place difficulty in similar engineering is large and construction cost is higher, meanwhile, the form of bridge should make every effort to succinctly, can get integrated into environment, again can convenient construction, also should not be too large across footpath, reduce as far as possible the height of superstructure, the distance of further bridge floor and the water surface.Therefore, superstructure adopts band bracket integrated precast hollow slab beam 1.
A side bridge substructure adopts pile-column bridge pier 5 near water, and pier column cross section is circular, adopts bored pile 4 as Bored Pile of Bridge, and pier column is directly connected with bored pile 4.
Being close to mountain one side bridge substructure need excavate massif part, then ground is processed, then applies rectangle cushion block basis, anchor pole is set under basis and forms root pile consolidation process, can improve basic shearing resistance and antiskid and move ability.In figure, 10 is massif line, and 11 is excavation line.
This hollow slab beam 1 structure longitudinally interconnects by bracket is set.Hollow slab beam 1 end is provided with end floor beam 7, one side crossbeams bracket is set, and upper bracket height is 0.3m ~ 0.5m, the local thickening of opposite side end floor beam, lower bracket is set, and lower bracket height is 0.4m ~ 0.6m, between adjacent hollow plate-girder, interconnects by upper and lower bracket.Described hollow slab beam is 6.0～20.0m across footpath, and often across being simply supported beam, hollow slab beam deck-molding is 0.52～0.90m, hollow slab beam horizontally set limited block 6, and bearing adopts laminated rubber bearing.
According to one embodiment of present invention, being 6m for the wide 6m of bridge left and right, standard span is close to mountain bridge near water, and each bridge pier is close to versant grade beam cradle and is of a size of 1.2x0.8x0.6m, reinforced concrete structure; Under cushion block, rock bolt is set, a laminated rubber bearing is placed on cushion block top.Each bridge pier near water side is φ 1.2m bored pile, single pile single-column, and subaqueous work adopts the follow-up of steel casing, and a laminated rubber bearing is placed on column top.Superstructure adopts the hollowcore slab of standard thickness 0.52m, adopts the cavity of φ 0.36m, and between cavity, clear distance is 0.08m, to alleviate the deadweight of beam body, convenient lifting; Hollow slab beam end arranges crossbeam, and a side crossbeam arranges the upper bracket of height 0.39m, and opposite side end floor beam part thickeies to 0.92m, and so that the lower bracket of 0.52m height to be set, thereby while construction, Liang Tike overlaps supporting mutually by upper and lower bracket.
Bridge railing adopts stone balustrade, selects the railing style easily highlighting generous, attractive in appearance in conjunction with surrounding enviroment.
The mountain Bridge Types near water that is close to of the present invention, its main construction sequence is close to versant and carries out the excavation of a little for (1), sets rock bolt, builds grade beam cradle; (2) side is carried out drilled pile construction in water near water, and one to top; (3) place bearing at cushion block and column top; (4), in substructure construction, carry out the prefabricated of hollow slab beam in special place; (5) carry out hollow slab beam lifting construction; (6) mat formation successively, the thin portion such as guardrail structure construction.This technology can be used for bridge circuit and is close to steep hill, and opposite side water level is higher simultaneously, bridge bearing platform, the situation that pier stud difficulty of construction is large.Reduce because constructional difficulties, risk that massif excavation, pier in water bring increase and cost increase, and can the reduction of erection time.
Mountain Bridge Types is near water close in employing, has utilized the precipitous landform of hillside physical features, has reduced difficulty of construction, the form of bridge is succinct, can get integrated into environment, again can convenient construction, also more suitable across footpath, reduce as far as possible the height of superstructure, the distance of further bridge floor and the water surface.
In order to ensure the result of use of the art of this patent, in work progress, should pay attention to the protection near slope and water body.
According to one embodiment of present invention, apply the present invention to the bridge engineering of certain newly-built view road in ring lake, the restriction condition of this project is:
1,, from the viewpoint of view, bridge is close to precipitous loke shore and is arranged.
2, the loke shore gradient is precipitous, and lake water water level seasonal variety is large, and bridge must subaqueous work.
3, loke shore hillside superficial part is the sand stone layer of mud or alluvial, and local location is distributed with mucky soil, and bottom is middle weathering dolomitic limestone, the unsuitable large area excavation of loke shore.
4, seismic fortification intensity is 8 degree, and basic seismic design acceleration is 0.20g, and classification of design earthquake is the 3rd group, and site category is II class, belongs to the unfavorable location of antidetonation.
For this engineering roadblock, under a kind of complicated environmental condition of the present invention, be close to mountain near water bridge design, as follows:
As shown in Figure 1, bridge lateral faces mountain one side bearing and is positioned on grade beam cradle 2, one is sidelong and is placed on pile-column bridge pier 5 near water.Grade beam cradle 2 bottoms adopt suitable foundation treatment mode, have adopted rock bolt 3 according to geological condition; Bored pile 4 adopts steel casing follow-up construction, and bearing stratum is arranged on basement rock.Superstructure adopts the hollow slab beam 1 of integral hoisting.Pier column arranges the limited block 6 matching with pier column at the bottom of being in beam, and side arranges greening groove 8 near water, carries out necessary landscape ornamental.As Fig. 2, bridge span is set to 6m, and Dun Ding arranges end floor beam bracket, and upper and lower bracket overlaps mutually, and rubber cushion blocks bearing is set between bracket.For ensureing beam body stress condition, the end floor beam that lower bracket is set carries out necessary increasing.
The present invention has overcome the impracticable situation of environmental protection requirement that similar engineering is in the past arranged cofferdam etc. because massif is significantly excavated, in water; make under complicated environmental condition bridge construction in safety, controllable state; engineering is able to smooth enforcement; also implement to provide a kind of new structure pattern and construction method for bridge engineering under similar complicated environmental condition, advance the application of being close to mountain bridge.
Claims (5)
1. be close to a mountain bridge construction near water, comprise bridge deck structure, it is characterized in that this bridge construction is close to mountain one side and will grade beam cradle be set after massif otch; A side adopts pile-column bridge pier near water; Bridge deck structure adopts band bracket integrated precast hollow slab beam, and the horizontal side of plate-girder is held on grade beam cradle, and opposite side is placed in bridge pier top.
2. bridge construction according to claim 1, is characterized in that described grade beam cradle fixes by rock bolt and massif.
3. bridge construction according to claim 2, it is characterized in that being with bracket integrated precast hollow slab beam end to be provided with end floor beam, a side crossbeam arranges bracket, the local thickening of opposite side end floor beam, lower bracket is set, between adjacent hollow plate-girder, interconnects by upper and lower bracket.
4. bridge construction according to claim 1, it is characterized in that described pile-column bridge pier bottom arranges bored pile, pier column is directly connected with bored pile, pier column top arranges laminated rubber bearing, grade beam cradle top is also provided with laminated rubber bearing, and hollow slab beam is shelved on neoprene bearing.
5. be close to a mountain construction method for bridge construction near water, it is characterized in that this construction method comprises the following steps: A, on hillside, carry out massif excavation, build grade beam cradle, divide into rock bolt; B, near water, a side is carried out drilled pile construction, forms pile-column bridge pier, and capital arranges bearing; C, prefabricated band bracket Integral hollow plate-girder; D, lift hollow slab beam successively, the horizontal side of this hollow slab beam is held on grade beam cradle, and opposite side is placed in bridge pier top, and the bracket up and down that this hollow slab beam longitudinally arranges by termination interconnects; E, carry out guard rail, paving construction.
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| CN201310081354.9A CN104047222B (en) | 2013-03-14 | 2013-03-14 | One kind is close to mountain bridge structure and its construction method near water |
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| CN201310081354.9A CN104047222B (en) | 2013-03-14 | 2013-03-14 | One kind is close to mountain bridge structure and its construction method near water |
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| CN104047222A true CN104047222A (en) | 2014-09-17 |
| CN104047222B CN104047222B (en) | 2018-02-16 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104294752A (en) * | 2014-10-30 | 2015-01-21 | 福州大学 | Hollow slab bridge structure with end floor beams and construction method thereof |
| CN104313993A (en) * | 2014-11-07 | 2015-01-28 | 罗静宏 | Highway bridge and construction method thereof |
| CN105421484A (en) * | 2015-12-25 | 2016-03-23 | 中铁十四局集团有限公司 | Deep pond spanning structure |
| CN107574813A (en) * | 2017-08-09 | 2018-01-12 | 贵州正业工程技术投资有限公司 | The device and construction method of Soil-rock combined ground are passed through in a kind of karst area |
| CN108560425A (en) * | 2018-04-28 | 2018-09-21 | 中建七局安装工程有限公司 | A kind of shelter bridge Construction of Steel Structure method |
| CN109056530A (en) * | 2018-09-25 | 2018-12-21 | 中铁二院工程集团有限责任公司 | A kind of king-post base configuration being suitable for bridge tower on steep side slope |
| CN109930474A (en) * | 2019-04-04 | 2019-06-25 | 中交第三航务工程勘察设计院有限公司 | A kind of connected structure for pile foundation type trestle and barrel type basis |
| CN110847055A (en) * | 2019-12-10 | 2020-02-28 | 中铁十二局集团有限公司 | Bridge pier of mountain-crossing highway bridge, construction method and mountain-crossing highway bridge |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104294752A (en) * | 2014-10-30 | 2015-01-21 | 福州大学 | Hollow slab bridge structure with end floor beams and construction method thereof |
| CN104294752B (en) * | 2014-10-30 | 2016-06-01 | 福州大学 | The hollow slab bridge structure of a kind of band end crossbeam and constructional method thereof |
| CN104313993A (en) * | 2014-11-07 | 2015-01-28 | 罗静宏 | Highway bridge and construction method thereof |
| CN104313993B (en) * | 2014-11-07 | 2016-06-08 | 罗静宏 | A kind of highway bridge and construction method thereof |
| CN105421484A (en) * | 2015-12-25 | 2016-03-23 | 中铁十四局集团有限公司 | Deep pond spanning structure |
| CN107574813A (en) * | 2017-08-09 | 2018-01-12 | 贵州正业工程技术投资有限公司 | The device and construction method of Soil-rock combined ground are passed through in a kind of karst area |
| CN108560425A (en) * | 2018-04-28 | 2018-09-21 | 中建七局安装工程有限公司 | A kind of shelter bridge Construction of Steel Structure method |
| CN109056530A (en) * | 2018-09-25 | 2018-12-21 | 中铁二院工程集团有限责任公司 | A kind of king-post base configuration being suitable for bridge tower on steep side slope |
| CN109930474A (en) * | 2019-04-04 | 2019-06-25 | 中交第三航务工程勘察设计院有限公司 | A kind of connected structure for pile foundation type trestle and barrel type basis |
| CN110847055A (en) * | 2019-12-10 | 2020-02-28 | 中铁十二局集团有限公司 | Bridge pier of mountain-crossing highway bridge, construction method and mountain-crossing highway bridge |
| CN110847055B (en) * | 2019-12-10 | 2021-03-23 | 中铁十二局集团有限公司 | Bridge pier of mountain-crossing highway bridge, construction method and mountain-crossing highway bridge |
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| CN104047222B (en) | 2018-02-16 |
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