CN1936184B - Frame type combined structure man-vehicle passage - Google Patents
Frame type combined structure man-vehicle passage Download PDFInfo
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- CN1936184B CN1936184B CN2006101229526A CN200610122952A CN1936184B CN 1936184 B CN1936184 B CN 1936184B CN 2006101229526 A CN2006101229526 A CN 2006101229526A CN 200610122952 A CN200610122952 A CN 200610122952A CN 1936184 B CN1936184 B CN 1936184B
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Abstract
The invention relates to a street and crossing that could realize people and vehicles passing separately. It has installable composite structure that adopts frame structure to combine steel material and concrete having strong tensile property to make full of the mechanical property of the materials. The entire capability of the street would be improved through optimizing the entire structure size. The invention has the advantages of decreasing project material, realizing industrial producing, lowering constructing cost, having good comprehensive economic benefits, etc.
Description
Technical field
The present invention 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 problem to be solved in the present invention 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 by framing component on former motorway, arrange successively, assembling combination forms.Carry out assembly unit for ease of normal width and form integrated deck according to motorway, consider load and structural mechanical property requirements that member bears simultaneously, the width dimensions of framing component can adopt the sizing design according to the normal width of motorway, concrete size can be selected 3.75m, 3.5m, 3.25m, 3m, length dimension (being vertical span) considers that the requirement in walk space and load distribute, the independent stressed mechanics of framework requires also to adopt the sizing design, specifically can select 4.2m, 4.5m.Adopt the sizing design except that have can benefit by lane width quick-assembling bridge floor, its another purpose is to have satisfied the needs of factory's typing, batch process.
Framing component comprises the upper strata prestressed concrete slabs, lower floor's steel structure frame.It is the H section steel manufacture of 150mm～300mm that the column of steel structure frame can adopt sectional dimension, or adopts concrete filled steel tube, passes through welding or bolt tie-beam, diagonal web member formation framework between the column.Steel structure frame is provided with and interconnects fixing yin-yang plug joint between framework, with the quick-assembling combination that makes things convenient for the bottom steel structure frame and be connected firmly; 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.
Prestressed concrete slabs combines by connector (shear key) with steel structure frame becomes combining structure, and an end of connector is welded in the steel truss girder upper surface of steel structure frame, and whole connector is embedded in the prestressed concrete slabs.The main effect of connector is to bear the longitudinal shear on the interface between steel truss girder and the concrete slab, 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 concrete slabs double as bridge deck that are positioned at steel truss girder top and mainly bear the vertical compressive stress that causes by moment of flexure, the steel truss girder 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 combined structure frame member that forms thus will be considerably beyond the absolute construction forms of non-combination.
In a kind of specific embodiments of the present invention, prestressed concrete slabs adopts pre-tensioned prestressing construction method monoblock prefabricated, and arrangement prestress muscle on horizontal, vertical both direction is reserved a plurality of connector containing holes on prestressed concrete slabs; Concentrate with less spacing in the place of the corresponding containing hole of the steel truss girder upper surface of described steel structure frame to be welded to connect part, form the connector cluster; Prestressed concrete slabs is installed on the steel structure frame, the connector cluster is placed among the containing hole, fill the connector containing hole, prestressed concrete slabs and steel structure frame are combined into one, bear external force with non-shrink mortar.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.
Prestressed concrete slabs adopts the post-tensioned prestressing construction method to arrange that on steel structure frame the setback steel plate directly builds in another kind of specific embodiments of the present invention, on the steel truss girder of steel structure frame, arrange the setback steel plate, setback steel plate and the welding of steel truss girder end face, pass the setback steel plate and equidistantly weld rigidity hysteresis connector at the steel truss girder end face, on the setback steel plate, arrange steel mesh reinforcement, at horizontal stroke, vertical both direction arrangement prestress muscle, the concreting layer, by rigidity hysteresis connector steel truss girder is combined with concrete, after concrete reaches design strength, tensioned prestressing bar.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 girder 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 girder fully by rigid connector, stressed jointly, a part of prestressing force can take place affact on the steel truss girder, make prestressing force can not effectively impose on concrete slab, will the mechanical property raising of concrete slab 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 concrete slab.After reaching rigidity hysteresis aging time, the rigidity of the rigidity of connector and common weldering nail connector much at one, steel truss girder and concrete 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 concrete slab 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 present invention adopts the frame construction steel that tensile property is strong, concrete that compressive 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 invention
Fig. 2 is the structural perspective of first kind of embodiment of the present invention
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 invention
Fig. 5 is Fig. 4 upper left corner broken section enlarged drawing
The specific embodiment
As shown in Figure 1, man-vehicle passage is made of ramp (15) and middle (16) platform.The gradient in ramp is 4%, and length of grade is 60m, and halfpace garage road surface is 2.8m apart from ground level.The ramp of man-vehicle passage and halfpace by framing component on former motorway, arrange successively, assembling combination forms.
As Fig. 1, Fig. 2, framing component shown in Figure 4, its width dimensions adopts the sizing design according to the normal width of motorway, concrete size can be selected 3.75m, 3.5m, 3.25m, 3m, length dimension (being vertical span) considers that the requirement in walk space and load distribute, the independent stressed mechanics of framework requires also to adopt the sizing design, specifically can select 4.2m, 4.5m, its span is minimum.The sizing that adopts designs, and has taken into full account load characteristic distributions, the load that the monomer framing component bears and the structural mechanical property requirements of integrated deck.Its benefit is: be convenient to normal width according to motorway and carry out assembly unit and form integrated deck, simultaneously, its another purpose is to have satisfied the needs of factory's typing, batch process.
Framing component comprises upper strata prestressed concrete slabs (1), lower floor's steel structure frame (2).It is the H section steel manufacture of 150mm～300mm that the column (3) of steel structure frame (2) can adopt sectional dimension, or adopts concrete filled steel tube, passes through welding or bolt tie-beam (4), diagonal web member (5) formation framework between the column (3).Steel structure frame (2) is provided with and interconnects fixing yin-yang plug joint (6) between framework, with the quick-assembling combination that makes things convenient for the bottom steel structure frame and be connected firmly; Prestressed concrete slabs (1) 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.
The effect by connector of prestressed concrete slabs (1) and steel structure frame (2) combines and becomes combining structure.
In one embodiment of the invention, prestressed concrete slabs (1) adopts pre-tensioned prestressing construction method monoblock prefabricated, arrangement prestress muscle (8) on horizontal, vertical both direction is gone up reservation a plurality of connector containing holes (9) at prestressed concrete slabs (1); Welding cylindrical head weldering nail connector (11) is concentrated with less spacing in place at the corresponding containing hole of steel truss girder (10) upper surface of steel structure frame (9), forms the connector cluster; Prestressed concrete slabs (1) is installed on the steel structure frame (2), the connector cluster is placed among the containing hole (9), fill connector containing hole (9) with non-shrink mortar, prestressed concrete slabs (1) and steel structure frame (2) are combined into one, bear external force.The main effect of socket cap weldering nail connector (11) is to bear the longitudinal shear on the interface between steel truss girder (10) and the concrete slab (1), 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 prestressed concrete slabs (1) the double as bridge deck that are positioned at steel truss girder (10) top and mainly bear the vertical compressive stress that causes by moment of flexure, the steel truss girder of bottom (10) 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 combined structure frame member that forms thus will be considerably beyond the absolute construction forms of non-combination.
As shown in Figure 3, Figure 4, in second kind of embodiment of the present invention, provided the compound mode of another kind of prestressed concrete slabs and steel structure frame.Prestressed concrete slabs in this scheme (1) adopts the post-tensioned prestressing construction method to go up layout setback steel plates (12) at steel structure frame (2) and directly builds, go up layout setback steel plates (12) at the steel truss girder (10) of steel structure frame (2), setback steel plate (12) and the welding of steel truss girder (10) end face, pass setback steel plate (12) and equidistantly weld rigidity hysteresis connector (13) at steel truss girder (10) end face, on setback steel plate (12), arrange steel mesh reinforcement (14), at horizontal stroke, vertical both direction arrangement prestress muscle (8), the concreting layer, by rigidity hysteresis connector (13) steel truss girder (10) is combined with concrete slab (1), after concrete reaches design strength, tensioned prestressing bar.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 girder 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 girder fully by rigid connector, stressed jointly, a part of prestressing force can take place affact on the steel truss girder, make prestressing force can not effectively impose on concrete slab, will the mechanical property raising of concrete slab 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 concrete slab.After reaching rigidity hysteresis aging time, the rigidity of the rigidity of connector and common weldering nail connector much at one, steel truss girder and concrete are born load with regard to complete combination together, play a role jointly.The setback steel plate (12) that this programme adopts, thickness is 0.8～4mm, the adjacent peaks spacing is 100～300mm, and the setback angle is 30 °, and is better with the concrete concrete slab deck overall performance that the back forms that combines after building, effectively prevent concrete cracking, good looking appearance is generous, has both the plurality of advantages of concrete and steel bridge deck, and the setback steel plate can be used as the template use again simultaneously, realize quick, safe construction easily, and guarantee construction quality.
Claims (7)
1. frame type combined 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 (15) and halfpace (16), the gradient in ramp is 2% ~ 5%, length of grade is 50 ~ 100m, halfpace garage road surface is 2.5 ~ 3m apart from ground level, ramp of this man-vehicle passage (15) and halfpace (16) are arranged on former motorway successively by framing component, assembling combination forms, the planar dimension of framing component adopts the sizing design according to the normal width of motorway, framing component comprises upper strata prestressed concrete slabs (1), lower floor's steel structure frame (2), steel structure frame (2) is provided with and interconnects fixing yin-yang plug joint (6) between framework, prestressed concrete slabs (1) periphery is provided with is convenient to the link slot (7) that mutual assembly unit cooperates and install the elasticity caulking material, prestressed concrete slabs (1) combines by shear connector with steel structure frame (2) becomes combining structure, one end of connector is welded in steel truss girder (10) upper surface of steel structure frame (2), and whole connector is embedded in the prestressed concrete slabs (1).
2. frame type combined structure man-vehicle passage according to claim 1, it is characterized in that: the width dimensions of described framing component is 3.75m, 3.5m, 3.25m or 3m, the column (3) of steel structure frame (2) is the H section steel manufacture of 150mm ~ 300mm with sectional dimension, or adopts concrete filled steel tube.
3. frame type combined structure man-vehicle passage according to claim 1 and 2, it is characterized in that: described prestressed concrete slabs (1) adopts pre-tensioned prestressing construction method monoblock prefabricated, arrangement prestress muscle (8) on horizontal, vertical both direction is gone up reservation a plurality of shear connector containing holes (9) at prestressed concrete slabs (1); The welding shear connector is concentrated with less spacing in place at the corresponding containing hole of steel truss girder (10) upper surface of described steel structure frame (2), forms the connector cluster; Prestressed concrete slabs (1) is installed on the steel structure frame (2), the connector cluster is placed among the containing hole (9), fill shear connector containing hole (9) with non-shrink mortar, prestressed concrete slabs (1) and steel structure frame (2) are combined into one, bear external force.
4. frame type combined structure man-vehicle passage according to claim 3 is characterized in that: described shear connector is socket cap weldering nail connector (11), shaped steel connector or a rebar connector.
5. frame type combined structure man-vehicle passage according to claim 1 and 2, it is characterized in that: described prestressed concrete slabs (1) adopts the post-tensioned prestressing construction method directly to build on steel structure frame (2), go up layout setback steel plates (12) at the steel truss girder (10) of steel structure frame (1), setback steel plate (12) and the welding of steel truss girder (10) end face, pass setback steel plate (12) and equidistantly weld shear connector at steel truss girder (10) end face, on setback steel plate (12), arrange steel mesh reinforcement (14), at horizontal stroke, vertical both direction arrangement prestress muscle (8), the concreting layer, by shear connector steel truss girder (10) is combined with concrete, after concrete reaches design strength, tensioned prestressing bar.
6. frame type combined structure man-vehicle passage according to claim 5 is characterized in that: described setback steel plate (12) thickness is 0.8 ~ 4mm, and the adjacent peaks spacing is 100 ~ 300mm, and the setback angle is 30 °.
7. frame type combined structure man-vehicle passage according to claim 5, it is characterized in that: described shear 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 truss girder end face welding, resin mortar is formulated by a certain percentage by epoxy resin and silicon sand.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2006101229526A CN1936184B (en) | 2006-10-23 | 2006-10-23 | Frame type combined structure man-vehicle passage |
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| CN2006101229526A CN1936184B (en) | 2006-10-23 | 2006-10-23 | Frame type combined structure man-vehicle passage |
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| CN1936184A CN1936184A (en) | 2007-03-28 |
| CN1936184B true CN1936184B (en) | 2011-06-15 |
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| CN103147387B (en) * | 2013-03-27 | 2016-12-07 | 郑州市大方实业有限公司 | A kind of double combined combined bridge structure |
| CN105484145A (en) * | 2014-09-19 | 2016-04-13 | 任丘市永基建筑安装工程有限公司 | Counterweight mounting structure for urban steel bridge |
| CN106032660A (en) * | 2015-03-09 | 2016-10-19 | 任丘市永基建筑安装工程有限公司 | A city steel bridge balance weight structure |
| CN105350426B (en) * | 2015-09-29 | 2017-12-15 | 中国一冶集团有限公司 | The assembling method of pavement in massif construction |
| CN106930599A (en) * | 2015-12-31 | 2017-07-07 | 王圣玉 | The steel structure platform that steel structure platform frame unit and assembling build |
| CN105568799A (en) * | 2016-01-22 | 2016-05-11 | 绍兴县明煌建材科技有限公司 | Efficient assembly type transportation junction fast and convenient to use |
| CN112962882B (en) * | 2021-01-29 | 2022-06-24 | 北京万兴建筑集团有限公司 | Construction method for preventing slope way of disabled people outside residential building from sinking in building engineering |
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| DE29611490U1 (en) | 1996-07-02 | 1997-07-31 | Chen, Xinfeng, 44227 Dortmund | Elevated carriageway for motorway construction sites |
| CN1164597A (en) * | 1997-05-24 | 1997-11-12 | 渠涛 | Interchange road |
| CN1201853A (en) * | 1997-12-09 | 1998-12-16 | 李学思 | Overhead crossing bridge series |
| CN1213724A (en) * | 1998-09-08 | 1999-04-14 | 路福昌 | Fast-mounting highway, railway and river automotive bridge |
| JP2001248101A (en) * | 2000-03-07 | 2001-09-14 | Taisei Corp | Grade separation block and construction method therefor |
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2006
- 2006-10-23 CN CN2006101229526A patent/CN1936184B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE29611490U1 (en) | 1996-07-02 | 1997-07-31 | Chen, Xinfeng, 44227 Dortmund | Elevated carriageway for motorway construction sites |
| CN1164597A (en) * | 1997-05-24 | 1997-11-12 | 渠涛 | Interchange road |
| CN1201853A (en) * | 1997-12-09 | 1998-12-16 | 李学思 | Overhead crossing bridge series |
| CN1213724A (en) * | 1998-09-08 | 1999-04-14 | 路福昌 | Fast-mounting highway, railway and river automotive bridge |
| JP2001248101A (en) * | 2000-03-07 | 2001-09-14 | Taisei Corp | Grade separation block and construction method therefor |
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