CN102720121A - Radial round wood support arch bridge bracket and construction method thereof - Google Patents
Radial round wood support arch bridge bracket and construction method thereof Download PDFInfo
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- CN102720121A CN102720121A CN2012101961685A CN201210196168A CN102720121A CN 102720121 A CN102720121 A CN 102720121A CN 2012101961685 A CN2012101961685 A CN 2012101961685A CN 201210196168 A CN201210196168 A CN 201210196168A CN 102720121 A CN102720121 A CN 102720121A
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Abstract
The invention discloses a radial round wood support arch bridge bracket and a construction method thereof, and the radial round wood support arch bridge bracket is used for solving the problems of high tool input amount, high construction cost and poor stability in the prior art. Channel steel (5) is arranged on a civil foundation at intervals along the consequent bridge direction of a bridge construction direction and provided with upright columns (6); the top ends of the upright column (6) are fixedly provided with square wood boundary beams (9) in the downstream direction; paired sheath wooden wedges (10) are arranged on the square wood boundary beams (9) and provided with a straining beam (11); sway rods (13) are arranged on the straining beam (11) at equal intervals; the top ends of the sway rods (13) are fixedly provided with arch-shaped wood (14); an extension line of a straight line on which each sway rod (13) is located passes through the center of a circle in which the arch-shaped wood (14) is located, the side faces of the sway rods (13) are provided with scissor wood supporting racks (17) in the consequent bridge direction; and the arch-shaped wood (14) is fixedly provided with arch crown square wood (15) and steel plates (16). The radial round wood support arch bridge bracket disclosed by the invention is integrally and uniformly stressed and is simple in construction.
Description
Technical field
The present invention relates to the civil engineering support that a kind of height is no more than 35 meters large, medium and small arch bridge, particularly a kind of usefulness is the support and the building method thereof of round log supporting arch bridge radially.
Background technology
In the civil engineering of arch bridge, cardinal principle can be divided into has rack construction and erection without scaffolding two big classes.Employing has stand construction method in construction in the past, to have two kinds substantially: the first adopts the steel bow member; It two is to adopt a full hall formula wood centering.Above-mentioned two kinds of methods all exist certain limitation and drawback, first kind of situation, and safety is reliable, but the instrument input amount is bigger, and expense is also than higher; Second kind of situation, the instrument input amount is less, but there is security risk in poor stability, and the scope of application is limited.A kind of both construction safeties of on-the-spot urgent need are reliable, drop into the arch bridge support and the job practices thereof of economical rationality again.
Summary of the invention
The invention provides a kind of radially round log supporting arch bridge bracket and building method thereof, solved the instrument input amount that prior art exists, the problem of big operating expenses height and poor stability.
The present invention overcomes the above problems through following scheme:
A kind of radially round log supporting arch bridge bracket comprises foundation of civil work, and the compartment of terrain along the bridge that bridge is set up direction in the foundation of civil work upper edge is provided with channel-section steel; Channel-section steel is provided with column, is provided with downstream direction scissors wood bracing frame in the both sides of column, and direction scissors wood bracing frame is that the edge is set up the vertical direction downstream of direction with bridge and set up downstream; Be set with the lumps of wood circle beam of direction downstream on the top of column, lumps of wood circle beam is provided with the sheath timber wedge, and the sheath timber wedge is provided with straining beam; On straining beam, equally spaced be provided with hound; Be set with arc wood on the top of hound, the extended line of each diagonal brace place straight line all through the center of circle of arc wood place circle, is provided with scissors wood bracing frame along the bridge in the side of diagonal brace; On arc wood, be set with the vault lumps of wood, the vault lumps of wood is provided with steel plate.
Described foundation of civil work comprises mortar flag stone layer, thick rock ballast layer and rubble sublayer; On the mortar flag stone layer, be equipped with thick rock ballast layer; On thick rock ballast layer, be equipped with the blinding layer, in the rubble sublayer, be provided with steel form, the rubble sublayer is provided with described channel-section steel.
A kind of building method of radially round log supporting arch bridge bracket may further comprise the steps:
The first step, in the good foundation pit of excavation, lay the mortar flag stone layer; Steamroller is real, on the mortar flag stone layer, lays thick rock ballast layer, on thick rock ballast layer, lays the blinding layer; In the rubble sublayer, steel form is set, channel-section steel is fixed on the steel form according to the spacing of column;
Second step, direction scissors wood bracing frame downstream is set in the both sides of column, direction scissors wood bracing frame is that the edge is set up the vertical direction downstream of direction with bridge and set up downstream, on the top of column with the fixing lumps of wood circle beam of direction downstream of dog; On lumps of wood circle beam, be provided with the sheath timber wedge, on to the sheath timber wedge, straining beam be set, straining beam becomes an angle of 90 degrees with lumps of wood circle beam along the bridge; Straining beam is many butt joints, about respectively withstand on the pier cap, middle with timber wedge many straining beam jam-packeds; Fixing dead straining beam at 4 faces of straining beam then with dog; Make many straining beams become an integral body, on straining beam, equally spaced be provided with hound, fix arc wood with dog on the top of hound; The extended line of each diagonal brace place straight line is all through the round center of circle, arc wood place; Be provided with scissors wood bracing frame along the bridge in the side of diagonal brace, on arc wood, completely spread the vault lumps of wood, the full laying put steel plate on the vault lumps of wood;
The sandbag precompressed is adopted in the 3rd step, the intact back of rack construction, and prefabricating load is 1.2 times of arch bar unit area maximum weight, measures 1/3rd places of vault, arch ring, the sedimentation value at two arch springing places respectively, and the after-pouring concrete meets the requirements.
Whole stressed even, the simple structure of the present invention avoids adopting complicated node and joint.And have enough intensity, rigidity and resistance to overturning, and guarantee that the distortion of bow member under load action is minimum, deformation curve is slick and sly.And can carry out combination in any according to the design arc-shaped sections of arch bridge, the duration is shorter relatively.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Specific embodiment
A kind of radially round log supporting arch bridge bracket comprises foundation of civil work, and the compartment of terrain along the bridge that bridge is set up direction in the foundation of civil work upper edge is provided with channel-section steel 5; Channel-section steel 5 is provided with column 6; Be provided with direction scissors wood bracing frame 7 downstream in the both sides of column 6, direction scissors wood bracing frame 7 is that the edge is set up the vertical direction downstream of direction with bridge and set up downstream, is set with the lumps of wood circle beam 9 of direction downstream on the top of column 6; Lumps of wood circle beam 9 is provided with sheath timber wedge 10; Sheath timber wedge 10 is provided with straining beam 11, on straining beam 11, equally spaced is provided with hound 13, be set with arc wooden 14 on the top of hound 13; The extended line of each diagonal brace 13 place straight line is all through the round center of circle, arc wooden 14 places; Be provided with scissors wood bracing frame 17 along the bridge in the side of diagonal brace 13, on arc wooden 14, be set with the vault lumps of wood 15, the vault lumps of wood 15 is provided with steel plate 16.
Described foundation of civil work comprises mortar flag stone layer 1, thick rock ballast layer 2 and rubble sublayer 3; On mortar flag stone layer 1, be equipped with thick rock ballast layer 2; On thick rock ballast layer 2, be equipped with blinding layer 3, in rubble sublayer 3, be provided with steel form 4, rubble sublayer 3 is provided with described channel-section steel 5.
A kind of building method of radially round log supporting arch bridge bracket may further comprise the steps:
The first step, in the good foundation pit of excavation, lay mortar flag stone layer 1; Steamroller is real, on mortar flag stone layer 1, lays thick rock ballast layer 2, on thick rock ballast layer 2, lays blinding layer 3; Steel form 4 is set in rubble sublayer 3, channel-section steel 5 is fixed on the steel form 4 according to the spacing of column 6;
Second step, direction scissors wood bracing frame 7 downstream is set in the both sides of column 6, direction scissors wood bracing frame 7 is that the edge is set up the vertical direction downstream of direction with bridge and set up downstream, on the top of column 6 with the fixing lumps of wood circle beam 9 of direction downstream of dog; On lumps of wood circle beam 9, be provided with sheath timber wedge 10, on to sheath timber wedge 10, straining beam 11 be set, straining beam 11 along the bridge with 9 one-tenth an angle of 90 degrees of lumps of wood circle beam; Straining beam 11 is many butt joints, about respectively withstand on the pier cap, middle with timber wedge many straining beam jam-packeds; Fixing dead straining beam 11 at four faces of straining beam 11 then with dog; Make many straining beams 11 become an integral body, on straining beam 11, equally spaced be provided with hound 13, fix arc wooden 14 with dog on the top of hound 13; The extended line of each diagonal brace 13 place straight line is all through the round center of circle, arc wooden 14 places; Be provided with scissors wood bracing frame 17 along the bridge in the side of diagonal brace 13, on arc wooden 14, completely spread the vault lumps of wood 15, the full laying put steel plate 16 on the vault lumps of wood 15;
The sandbag precompressed is adopted in the 3rd step, the intact back of rack construction, and prefabricating load is 1.2 times of arch bar unit area maximum weight, measures 1/3 place of vault, arch ring, the sedimentation value at two arch springing places respectively, and the after-pouring concrete meets the requirements.
Basis of the present invention is to weave with steel form, channel-section steel, rubble through the method that adopts " at the bottom of the straw sandals ", and reaches the intensity height, the ideal basic that resistance to overturning is good.The basis is divided into four layers: first floor adopts 60 cm thicks, and granularity is 7.5 centimetres a mortar flag stone; The second layer adopts the rock ballast of 30 cm thicks; The 3rd layer is adopted blinding, and therebetween steel form, thickness are 10 centimetres; The 4th layer of step of adopting channel-section steel to do the round log support.
Radially the job practices of round log supporting arch bridge bracket mainly adopts the support concept of radial centripetal method; Make the concrete load action just built after on the bow member; Be not directly to be delivered to by bow member that the basis is gone up but most of stressed the offseting of arch helmet inside configuration on top through bow member, the remaining stressed substructure of passing through again is delivered to the basis.
Claims (3)
1. round log supporting arch bridge bracket radially; Comprise foundation of civil work, the compartment of terrain along the bridge that bridge is set up direction in the foundation of civil work upper edge is provided with channel-section steel (5), it is characterized in that; Channel-section steel (5) is provided with column (6); Be provided with direction scissors wood bracing frame (7) downstream in the both sides of column (6), direction scissors wood bracing frame (7) is that the edge is set up the vertical direction downstream of direction with bridge and set up downstream, is set with the lumps of wood circle beam (9) of direction downstream on the top of column (6); Lumps of wood circle beam (9) is provided with sheath timber wedge (10); Sheath timber wedge (10) is provided with straining beam (11), on straining beam (11), equally spaced is provided with hound (13), be set with arc wood (14) on the top of hound (13); The extended line of each diagonal brace (13) place straight line is all through the round center of circle, arc wood (14) place; Be provided with scissors wood bracing frame (17) along the bridge in the side of diagonal brace (13), on arc wood (14), be set with the vault lumps of wood (15), the vault lumps of wood (15) is provided with steel plate (16).
2. a kind of radially round log supporting arch bridge bracket according to claim 1; It is characterized in that; Described foundation of civil work comprises mortar flag stone layer (1), thick rock ballast layer (2) and rubble sublayer (3), on mortar flag stone layer (1), is equipped with thick rock ballast layer (2), on thick rock ballast layer (2), is equipped with blinding layer (3); In rubble sublayer (3), be provided with steel form (4), rubble sublayer (3) are provided with described channel-section steel (5).
3. building method of round log supporting arch bridge bracket radially may further comprise the steps:
The first step, in the good foundation pit of excavation, lay mortar flag stone layer (1); Steamroller is real; Go up laying thick rock ballast layer (2) at mortar flag stone layer (1); Go up to lay blinding layer (3) at thick rock ballast layer (2), steel form (4) is set in rubble sublayer (3), channel-section steel (5) is fixed on the steel form (4) according to the spacing of column (6);
Second step, direction scissors wood bracing frame (7) downstream is set in the both sides of column (6), direction scissors wood bracing frame (7) is that the edge is set up the vertical direction downstream of direction with bridge and set up downstream, on the top of column (6) with the fixing lumps of wood circle beam (9) of direction downstream of dog; On lumps of wood circle beam (9), be provided with sheath timber wedge (10); On to sheath timber wedge (10), straining beam (11) is set, straining beam (11) becomes an angle of 90 degrees with lumps of wood circle beam (9) along the bridge, and straining beam (11) is many butt joints; About respectively withstand on the pier cap; The centre, is fixed straining beam (11) extremely with dog at 4 faces of straining beam (11) many straining beam jam-packeds with timber wedge then, makes many straining beams (11) become an integral body; On straining beam (11), equally spaced be provided with hound (13); Arc wood (14) is fixed with dog in top at hound (13), and the extended line of each diagonal brace (13) place straight line all through the center of circle of arc wood (14) place circle, is provided with scissors wood bracing frame (17) along the bridge in the side of diagonal brace (13); On arc wood (14), completely spread the vault lumps of wood (15), go up full the laying at the vault lumps of wood (15) and put steel plate (16);
The sandbag precompressed is adopted in the 3rd step, the intact back of rack construction, and prefabricating load is 1.2 times of arch bar unit area maximum weight, measures 1/3rd places of vault, arch ring, the sedimentation value at two arch springing places respectively, and the after-pouring concrete meets the requirements.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101961685A CN102720121A (en) | 2012-06-14 | 2012-06-14 | Radial round wood support arch bridge bracket and construction method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101961685A CN102720121A (en) | 2012-06-14 | 2012-06-14 | Radial round wood support arch bridge bracket and construction method thereof |
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| CN102720121A true CN102720121A (en) | 2012-10-10 |
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| CN2012101961685A Pending CN102720121A (en) | 2012-06-14 | 2012-06-14 | Radial round wood support arch bridge bracket and construction method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106767505A (en) * | 2016-12-10 | 2017-05-31 | 成都飞机工业（集团）有限责任公司 | The MBD measurement techniques of large-scale multiple material high accuracy difficult point part |
| CN107781520A (en) * | 2016-08-26 | 2018-03-09 | 广州市自来水工程公司 | A kind of arch active support for large-diameter steel pipe inner spout |
| CN111005318A (en) * | 2019-12-03 | 2020-04-14 | 中交路桥华南工程有限公司 | Prepressing method of curved surface support |
| CN114320345A (en) * | 2022-01-04 | 2022-04-12 | 甘肃二车高等级公路项目管理有限公司 | Inverted arch prefabricated assembly structure suitable for loess highway tunnel and construction method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2004238802A (en) * | 2003-02-03 | 2004-08-26 | Kawada Construction Co Ltd | Wooden arch bridge |
| CN101130942A (en) * | 2007-09-06 | 2008-02-27 | 长业建设集团有限公司 | Soft-ground multi-cell twin-cantilever arched bridge structure and its construction method |
| CN202688876U (en) * | 2012-06-14 | 2013-01-23 | 山西省第三建筑工程公司 | Bracket for supporting arch bridge by radial round timbers |
-
2012
- 2012-06-14 CN CN2012101961685A patent/CN102720121A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004238802A (en) * | 2003-02-03 | 2004-08-26 | Kawada Construction Co Ltd | Wooden arch bridge |
| CN101130942A (en) * | 2007-09-06 | 2008-02-27 | 长业建设集团有限公司 | Soft-ground multi-cell twin-cantilever arched bridge structure and its construction method |
| CN202688876U (en) * | 2012-06-14 | 2013-01-23 | 山西省第三建筑工程公司 | Bracket for supporting arch bridge by radial round timbers |
Non-Patent Citations (1)
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| 雷秀清: "《径向圆木支撑拱桥支架施工技术》", 《山西建筑》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107781520A (en) * | 2016-08-26 | 2018-03-09 | 广州市自来水工程公司 | A kind of arch active support for large-diameter steel pipe inner spout |
| CN106767505A (en) * | 2016-12-10 | 2017-05-31 | 成都飞机工业（集团）有限责任公司 | The MBD measurement techniques of large-scale multiple material high accuracy difficult point part |
| CN106767505B (en) * | 2016-12-10 | 2019-03-29 | 成都飞机工业（集团）有限责任公司 | The MBD measurement technique of the multiple material high-precision difficult point part of large size |
| CN111005318A (en) * | 2019-12-03 | 2020-04-14 | 中交路桥华南工程有限公司 | Prepressing method of curved surface support |
| CN111005318B (en) * | 2019-12-03 | 2022-02-11 | 中交路桥华南工程有限公司 | Prepressing method of curved surface support |
| CN114320345A (en) * | 2022-01-04 | 2022-04-12 | 甘肃二车高等级公路项目管理有限公司 | Inverted arch prefabricated assembly structure suitable for loess highway tunnel and construction method |
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Application publication date: 20121010 |