CN201024364Y - Combined girder structure passage for pedestrian and vehicle - Google Patents
Combined girder structure passage for pedestrian and vehicle Download PDFInfo
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- CN201024364Y CN201024364Y CNU2006200663068U CN200620066306U CN201024364Y CN 201024364 Y CN201024364 Y CN 201024364Y CN U2006200663068 U CNU2006200663068 U CN U2006200663068U CN 200620066306 U CN200620066306 U CN 200620066306U CN 201024364 Y CN201024364 Y CN 201024364Y
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Abstract
The utility model relates to a detachable combined structural device that can realize shunting of man and vehicle used for roads and crossings, which adopts truss structure to mutually combines steel with high tensile strength and concrete with strong compression resistance to form high performance and economic combined structure component, thus fully exerting the mechanics performances of various materials. By further optimizing the whole structures and sizes of man-vehicle passages and specific components, the whole performances of man-vehicle passages are improved. The device can greatly reduce the engineering materials and realize industrial production with scale, carry out a speedy construction to reduce the impact to urban transport and greatly reduce construction costs, investment and urban construction expenses, thus achieving good overall economic benefits.
Description
Technical field
The utility model relates to a kind of human and vehicle shunting device in the field of traffic.Relate to a kind of road and dealings mouth of being used for particularly, realize people, car shunting, combinable composite structure equipment.
" combining structure " speech here can be regarded as: mutually combined by connector (shear key) and armored concrete slab by girder steel that exposes or steel truss girder, make concrete and girder steel or steel truss girder become integral body, and the member or the structure of role-taking power jointly.
Background technology
Traffic congestion is global urban issues, recent two decades comes, and along with the acceleration of urbanization process, urban population and automobile increase sharply, the city enlarges rapidly, urban road is widened day by day, by tens meters expansions to hundred meter, how to make things convenient for the pedestrian to go across the road, reduce traffic congestion, eliminate the conflict of people's car, realize rational human and vehicle shunting, especially become smooth and easy and safe very one of the major issue of urban traffic at the big road of people's vehicle flowrate and the human and vehicle shunting of dealings mouth.For addressing this problem, people have built a large amount of pedestrian overcrossinges and underground passage.But figure conveniently is inherent in human nature, and crosses road from the plane and is people's first and select, and therefore a lot of pedestrian overcrossinges, underground passage practical efficiency are not high, can not solve people's car collision problem well.Patent specification 01214905.5 " detachably reaching mobile channel unit for human and vehicle " and 200520053832.6 " making things convenient for the pedestrian to cross the device formula man-vehicle passage of road " has proposed a kind of new approaches of effective solution human and vehicle shunting, discloses a kind of man-vehicle passage that is formed by multiple arrangement formula component assembly.The concrete slab of this device formula member and bottom steel work are separately independently, be concrete structure and steel work role-taking power respectively, do not give full play to the mechanical property of material separately, this will make the mechanical property of whole member and the raising of macroeconomic that certain limitation is arranged.
Summary of the invention
Goal of the invention:
The technical problems to be solved in the utility model is that the overall structure size of man-vehicle passage and concrete member are further optimized, for giving full play to the mechanical property of various materials, design the combining structure member of a kind of high-performance, economy, thereby improve the overall performance of man-vehicle passage.
Technical scheme:
For solving the problems of the technologies described above, take following technical scheme: garage's passage is set along the longitudinal direction, below garage's passage, only supplies the passage or the activity space of walk along the horizontal direction setting on former motorway.Man-vehicle passage is made of ramp and halfpace.The gradient in ramp is 2%～5%, and length of grade is 50～100m, and halfpace garage road surface is 2.5～3m apart from ground level.Selecting for use of above-mentioned parameter is the result who compares repeatedly through a large amount of optimal design, scheme, and when realizing the man-vehicle passage allomeric function, its low and slow radian has ensured the smooth-going sense of vehicle ', increased aesthetic feeling for the urban road view.
The ramp of man-vehicle passage and halfpace set up by prefabricated composite roof truss assembly unit, and composite roof truss comprises upper strata prestressed bridge panel and lower floor's steel truss.Steel truss is made of round steel pipe or square-section closure tube, and the square-section closure tube forms with two channel-section steel Combination Welding, or directly to adopt square-section shaped steel, the cross section of steel truss be triangle or rectangle.The upper chord of steel truss is combined with the prestressed bridge panel by connector, forms composite roof truss.
The prestressed bridge panel combines by connector (shear key) with steel truss becomes combining structure, and an end of connector is welded in the upper chord upper surface of steel truss, and whole connector is embedded in the prestressed bridge panel.The main effect of connector is to bear the longitudinal shear on the interface between steel truss upper chord and the prestressed bridge panel, and pulling capacity is also born simultaneously in opposing relative slippage between the two, the opposing effect that starts between the two.Compound action by connector, make the prestressed bridge panel that is positioned at steel truss top mainly bear the vertical compressive stress that causes by moment of flexure, the steel truss of bottom then mainly bears tensile stress, two kinds of materials are maximized favourable factors and minimized unfavourable ones, each doing his best, its effect in structure is given full play in collaborative work, thereby the supporting capacity and the rigidity of the composite roof truss member that forms thus will be considerably beyond the absolute construction forms of non-combination.
In a kind of specific embodiments of the present utility model, the prestressed bridge panel is assembled on steel truss by the armored concrete slab that adopts pre-tensioned prestressing construction method precast block, the prestressed concrete slabs periphery is provided with is convenient to the link slot that mutual assembly unit cooperates and install the elasticity caulking material, can realize the slitless connection between the prestressed concrete slabs, effectively prevent rain leakage, guarantee that simultaneously bridge floor is smooth-going, reduce bridge floor driving noise.Arrangement prestress muscle on horizontal, the vertical both direction is reserved a plurality of shear connector containing holes on the armored concrete slab in armored concrete slab; Concentrate with less spacing in the place of the corresponding containing hole in the upper chord of described steel truss surface to be welded to connect part, form the connector cluster; The armored concrete slab that each is prefabricated is installed on the steel truss, and the connector cluster is placed among the containing hole, fills the connector containing hole with non-shrink mortar, and armored concrete slab and steel truss are combined into one, and forms composite roof truss, bears external force jointly.Connector in this programme can be socket cap weldering nail connector, shaped steel connector, rebar connector.Socket cap weldering nail connector because its mechanical property does not have directionality, is easier to be provided with, and can preferentially adopt.
In another kind of specific embodiments of the present utility model, the prestressed bridge panel adopts the post-tensioned prestressing construction method to set up template on steel truss and directly builds, equidistantly be welded to connect part at steel truss upper chord end face, on template, arrange steel mesh reinforcement, at horizontal, vertical both direction arrangement prestress muscle, the concreting layer, by connector steel truss is combined with concrete, after concrete reaches design strength, tensioned prestressing bar, stripping forms composite roof truss.
In another specific embodiments of the present utility model, the prestressed bridge panel adopts the post-tensioned prestressing construction method directly to build at steel truss upper surface layout setback steel plate, setback steel plate and the welding of steel truss upper chord end face, pass the setback steel plate and equidistantly weld rigidity hysteresis connector at the upper chord end face, on the setback steel plate, arrange steel mesh reinforcement, at horizontal, vertical both direction arrangement prestress muscle, the concreting layer, by connector steel truss is combined with setback steel plate, concrete, after concrete reaches design strength, tensioned prestressing bar forms composite roof truss.Above-mentioned rigidity hysteresis connector, it is configured to 2/3 wrapped resin mortar in socket cap weldering nail bar portion, smear resin mortar at the socket cap weldering nail and the root of steel truss upper chord end face welding, resin mortar is formulated by a certain percentage by epoxy resin and silicon sand, realizes the hysteresis performance of connector rigidity by the material of these rigidity retarded types.This programme is owing to adopt cast-in-place post-tensioned prestressing construction technology, if use common rigid connector, when tensioned prestressing bar applies prestressing force, concrete combines with steel truss fully by rigid connector, stressed jointly, a part of prestressing force can take place affact on the steel truss, make prestressing force can not effectively impose on bridge deck, will the mechanical property raising of bridge deck is restricted.And use under the situation of rigidity hysteresis connector, the effect that utilizes connector rigidity to lag behind, prestressing force just can effectively impose on bridge deck.After reaching rigidity hysteresis aging time, the rigidity of the rigidity of connector and common weldering nail connector much at one, steel truss and bridge deck are born load with regard to complete combination together, play a role jointly.The setback steel plate thickness that this programme adopts is 0.8～4mm, the adjacent peaks spacing is 100～300mm, the setback angle is 30 °, better with the concrete bridge deck deck overall performance that the back forms that combines after building, effectively prevent concrete cracking, good looking appearance is generous, the plurality of advantages that has both concrete and steel bridge deck, the setback steel plate can be used as the template use again simultaneously, realizes quick, safe construction easily, and guarantees construction quality.
Beneficial effect:
The utility model adopts the trussed construction strong concrete of steel, compressive property that tensile property is strong reasonably to be used in the drawing zone and the compressional zone of member respectively by mutual combination, form the combining structure member of high-performance, economy, given full play to the mechanical property of various materials.By further optimization, thereby improve the overall performance of man-vehicle passage to the overall structure size of man-vehicle passage and concrete member.Significantly reduced engineering material, can realize scale, suitability for industrialized production simultaneously, realized rapid construction, reduced influence, reduced construction cost greatly, reduced investment, save the urban construction cost, obtained good overall economic efficiency urban traffic.
Below in conjunction with drawings and Examples the present invention is explained in detail.
Description of drawings
Fig. 1 is a structure elevation of the present utility model
Fig. 2 is the structural perspective of first kind of embodiment of the present utility model
Fig. 3 is Fig. 2 upper left corner broken section enlarged drawing
Fig. 4 is the structural perspective of second kind of embodiment of the present utility model
Fig. 5 is Fig. 4 upper left corner broken section enlarged drawing
The specific embodiment
See Fig. 1, Fig. 2, Fig. 4, man-vehicle passage is made of ramp (1) and middle (2) platform.The gradient in ramp is 4.13%, and length of grade is 63m, and halfpace garage road surface is 2.85m apart from ground level.The ramp of man-vehicle passage and halfpace form by prefabricated composite roof truss assembling combination.Composite roof truss comprises upper strata prestressed bridge panel (3) and lower floor's steel truss (4), and steel truss (4) is welded by the square-section closure tube, and the square-section closure tube directly adopts square-section shaped steel, and the cross section of steel truss (4) is a rectangle.
Prestressed bridge panel (3) combines with the effect of steel truss (4) by connector, forms composite roof truss.
See Fig. 2, Fig. 3, in a kind of embodiment of the present utility model, prestressed bridge panel (3) is gone up assembled by the armored concrete slab (6) that adopts pre-tensioned prestressing construction method precast block at steel truss (4), prestressed concrete slabs (6) periphery is provided with is convenient to the link slot (7) that mutual assembly unit cooperates and install the elasticity caulking material, can realize the slitless connection between the prestressed concrete slabs, effectively prevent rain leakage, guarantee that simultaneously bridge floor is smooth-going, reduce bridge floor driving noise.Arrangement prestress muscle (8) on horizontal, the vertical both direction in armored concrete slab, armored concrete slab (6) is gone up and is reserved a plurality of shear connector containing holes (9); Welding cylindrical head weldering nail connector (10) is concentrated with less spacing in place at the corresponding containing hole of upper chord (5) upper surface of steel truss (4) (9), forms the connector cluster; The armored concrete slab that each is prefabricated (6) is installed on the steel truss (4), the connector cluster is placed among the containing hole (9), fill connector containing hole (9), armored concrete slab (6) and steel truss (4) are combined into one with non-shrink mortar, form composite roof truss, bear external force jointly.The main effect of socket cap weldering nail connector (10) is to bear the longitudinal shear on the interface between steel truss upper chord (5) and the armored concrete slab (6), and pulling capacity is also born simultaneously in opposing relative slippage between the two, the opposing effect that starts between the two.Compound action by connector, make the armored concrete slab (6) that is positioned at steel truss (4) top mainly bear the vertical compressive stress that causes by moment of flexure, the steel truss of bottom (4) then mainly bears tensile stress, two kinds of materials are maximized favourable factors and minimized unfavourable ones, each doing his best, its effect in structure is given full play in collaborative work, thereby the supporting capacity and the rigidity of the composite roof truss member that forms thus will be considerably beyond the absolute construction forms of non-combination.
As Fig. 4, shown in Figure 5, in second kind of embodiment of the present utility model, provided the compound mode of another kind of prestressed bridge panel (3) and steel truss (4).Prestressed bridge panel (3) adopts the post-tensioned prestressing construction method directly to build at steel truss (4) upper surface layout setback steel plates (11), setback steel plate (11) and the welding of steel truss upper chord (5) end face, pass setback steel plate (11) and equidistantly weld rigidity hysteresis connector (13) at upper chord (5) end face, on setback steel plate (11), arrange steel mesh reinforcement (12), at horizontal stroke, vertical both direction arrangement prestress muscle (8), the concreting layer, make steel truss (4) and setback steel plate (11) by connector, concrete combines, after concrete reaches design strength, tensioned prestressing bar forms composite roof truss.Above-mentioned rigidity hysteresis connector (13), it is configured to 2/3 wrapped resin mortar in socket cap weldering nail bar portion, smear resin mortar at the socket cap weldering nail and the root of steel truss upper chord end face welding, resin mortar is formulated by a certain percentage by epoxy resin and silicon sand, realizes the hysteresis performance of connector rigidity by the material of these rigidity retarded types.This programme is owing to adopt cast-in-place post-tensioned prestressing construction technology, if use common rigid connector, when tensioned prestressing bar applies prestressing force, concrete combines with steel truss fully by rigid connector, stressed jointly, a part of prestressing force can take place affact on the steel truss, make prestressing force can not effectively impose on bridge deck, will the mechanical property raising of bridge deck is restricted.And use under the situation of rigidity hysteresis connector, the effect that utilizes connector rigidity to lag behind, prestressing force just can effectively impose on bridge deck.After reaching rigidity hysteresis aging time, the rigidity of the rigidity of connector and common weldering nail connector much at one, steel truss and bridge deck are born load with regard to complete combination together, play a role jointly.Setback steel plate (11) thickness that this programme adopts is 0.8～4mm, the adjacent peaks spacing is 100～300mm, the setback angle is 30 °, better with the concrete bridge deck deck overall performance that the back forms that combines after building, effectively prevent concrete cracking, good looking appearance is generous, the plurality of advantages that has both concrete and steel bridge deck, the setback steel plate can be used as the template use again simultaneously, realizes quick, safe construction easily, and guarantees construction quality.
Claims (8)
1. composite roof truss structure man-vehicle passage, garage's passage is set on former motorway along the longitudinal direction, below garage's passage, only supply the passage or the activity space of walk along the horizontal direction setting, it is characterized in that: man-vehicle passage is made of ramp (1) and halfpace (2), the gradient in ramp (1) is 2%～5%, length of grade is 50～100m, halfpace (2) garage road surface is 2.5～3m apart from ground level, ramp of this man-vehicle passage (1) and halfpace (2) set up by prefabricated composite roof truss assembly unit, composite roof truss comprises upper strata prestressed bridge panel (3) and lower floor's steel truss (4), steel truss (4) is made of round steel pipe or square-section closure tube, the cross section of steel truss (4) is triangle or rectangle, the upper chord (5) of steel truss (4) combines with prestressed bridge panel (3) by connector, forms composite roof truss.
2. composite roof truss structure man-vehicle passage according to claim 1, it is characterized in that: described prestressed bridge panel (3) is gone up assembled by prefabricated pre-tensioned prestressing armored concrete slab (6) at steel truss (4), prestressed concrete slabs (6) periphery is provided with link slot (7), also is provided with a plurality of shear connector containing holes (9) on the prestressed concrete slabs (6); The place of the corresponding containing hole of upper chord (5) upper surface of described steel truss (4) (9) is welded with connector (10); Prestressed concrete slabs (6) is positioned at steel truss (4) top, connector (10) places among the containing hole (9), fill non-shrink mortar in the connector containing hole (9), prestressed concrete slabs (6) is combined into one with steel truss (4), forms composite roof truss.
3. composite roof truss structure man-vehicle passage according to claim 2 is characterized in that: described connector is socket cap weldering nail connector (10), shaped steel connector, rebar connector.
4. composite roof truss structure man-vehicle passage according to claim 1 is characterized in that: the post-tensioned prestressing muscle (8) that described prestressed bridge panel (3) is arranged by setback steel plate (11), steel mesh reinforcement (12), horizontal stroke, vertical both direction, cast-in-place layer of concrete constitute; Setback steel plate (11) places on the steel truss upper chord (5), pass setback steel plate (11) and equidistantly be welded to connect part at steel truss upper chord (5) end face, by connector steel truss (4) is combined with setback steel plate (11), concrete, form composite roof truss.
5. composite roof truss structure man-vehicle passage according to claim 1 is characterized in that: the post-tensioned prestressing muscle (8) that described prestressed bridge panel (3) is arranged by steel mesh reinforcement (12), horizontal stroke, vertical both direction, set up the cast-in-place layer of concrete of template and constitute; Equidistantly be welded to connect part at steel truss upper chord (5) end face, steel truss (4) combined with concrete, form composite roof truss by connector.
6. composite roof truss structure man-vehicle passage according to claim 4 is characterized in that: described setback steel plate (11) thickness is 0.8～4mm, and the adjacent peaks spacing is 100～300mm, and the setback angle is 30 °.
7. according to claim 4 or 5 described composite roof truss structure man-vehicle passages, it is characterized in that: described connector is a rigidity hysteresis connector (13), it is configured to 2/3 wrapped resin mortar in socket cap weldering nail bar portion, smear resin mortar at the socket cap weldering nail and the root of steel purlin steel truss upper chord end face welding, resin mortar is formulated by a certain percentage by epoxy resin and silicon sand.
8. composite roof truss structure man-vehicle passage according to claim 1 is characterized in that: described square-section closure tube forms with two channel-section steel Combination Welding, or directly adopts square-section shaped steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200663068U CN201024364Y (en) | 2006-10-23 | 2006-10-23 | Combined girder structure passage for pedestrian and vehicle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200663068U CN201024364Y (en) | 2006-10-23 | 2006-10-23 | Combined girder structure passage for pedestrian and vehicle |
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| CN201024364Y true CN201024364Y (en) | 2008-02-20 |
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| CNU2006200663068U Expired - Lifetime CN201024364Y (en) | 2006-10-23 | 2006-10-23 | Combined girder structure passage for pedestrian and vehicle |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101967793A (en) * | 2010-10-28 | 2011-02-09 | 南京工业大学 | Quickly-assembled sectional type composite material truss bridge |
| CN102383349A (en) * | 2011-02-25 | 2012-03-21 | 吴长峰 | Steel-structure straight-pull suspension-cable elevated road main structure |
| CN102797224A (en) * | 2012-08-22 | 2012-11-28 | 中铁二十三局集团有限公司 | Paving method and template supporting device of bridge deck slab |
| CN104652206A (en) * | 2015-02-02 | 2015-05-27 | 中铁西北科学研究院有限公司 | Assembled urban interchange system |
| CN105568842A (en) * | 2014-10-17 | 2016-05-11 | 任丘市永基建筑安装工程有限公司 | Steel pipe weight reduction technology |
| CN105568840A (en) * | 2014-10-17 | 2016-05-11 | 任丘市永基建筑安装工程有限公司 | Application of steel bow bridge in municipal road |
| CN109235234A (en) * | 2018-11-19 | 2019-01-18 | 江苏苏建路桥机械有限公司 | A kind of effective equalizer bar for adjusting beret slice steel bridge |
| WO2020119695A1 (en) * | 2018-12-10 | 2020-06-18 | 江洪 | New low-cost railway viaduct |
| CN112726979A (en) * | 2020-12-25 | 2021-04-30 | 武汉神华军建筑工程有限公司 | Net frame type ramp module |
| CN114109075A (en) * | 2021-11-22 | 2022-03-01 | 中建一局集团建设发展有限公司 | Quickly-installed combined steel ramp and construction method |
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2006
- 2006-10-23 CN CNU2006200663068U patent/CN201024364Y/en not_active Expired - Lifetime
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101967793A (en) * | 2010-10-28 | 2011-02-09 | 南京工业大学 | Quickly-assembled sectional type composite material truss bridge |
| CN102383349A (en) * | 2011-02-25 | 2012-03-21 | 吴长峰 | Steel-structure straight-pull suspension-cable elevated road main structure |
| CN102797224A (en) * | 2012-08-22 | 2012-11-28 | 中铁二十三局集团有限公司 | Paving method and template supporting device of bridge deck slab |
| CN102797224B (en) * | 2012-08-22 | 2014-09-10 | 中铁二十三局集团有限公司 | Paving method and template supporting device of bridge deck slab |
| CN105568842A (en) * | 2014-10-17 | 2016-05-11 | 任丘市永基建筑安装工程有限公司 | Steel pipe weight reduction technology |
| CN105568840A (en) * | 2014-10-17 | 2016-05-11 | 任丘市永基建筑安装工程有限公司 | Application of steel bow bridge in municipal road |
| CN104652206A (en) * | 2015-02-02 | 2015-05-27 | 中铁西北科学研究院有限公司 | Assembled urban interchange system |
| CN109235234A (en) * | 2018-11-19 | 2019-01-18 | 江苏苏建路桥机械有限公司 | A kind of effective equalizer bar for adjusting beret slice steel bridge |
| CN109235234B (en) * | 2018-11-19 | 2023-10-10 | 江苏苏建路桥机械有限公司 | Balance beam for effectively adjusting bailey piece steel bridge |
| WO2020119695A1 (en) * | 2018-12-10 | 2020-06-18 | 江洪 | New low-cost railway viaduct |
| CN112726979A (en) * | 2020-12-25 | 2021-04-30 | 武汉神华军建筑工程有限公司 | Net frame type ramp module |
| CN114109075A (en) * | 2021-11-22 | 2022-03-01 | 中建一局集团建设发展有限公司 | Quickly-installed combined steel ramp and construction method |
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