CN103952956B - Right-angled intersection prestressed concrete beam - Google Patents
Right-angled intersection prestressed concrete beam Download PDFInfo
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- CN103952956B CN103952956B CN201410204456.XA CN201410204456A CN103952956B CN 103952956 B CN103952956 B CN 103952956B CN 201410204456 A CN201410204456 A CN 201410204456A CN 103952956 B CN103952956 B CN 103952956B
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Abstract
Right-angled intersection prestressed concrete beam, belong to road traffic engineering technical field, solve existing elevated road span little, pier stud is many, from great defect, comprise the central frame be made up of east intermediate transverse girder, western intermediate transverse girder, northern intermediate transverse girder, southern intermediate transverse girder; Intermediate box beam is installed in central frame; End, east crossbeam, western end crossbeam, northern end crossbeam, southern end crossbeam is had outside central frame, and east case beam, western case beam, northern case beam, southern case beam; Each crossbeam is arranged on bridge pier.Structural span of the present invention is large, and pier stud is few, from heavy and light.
Description
Technical field
The invention belongs to road traffic engineering technical field, relate to highway, city intersection engineering, two elevated road usual friendship aloft, adopting right-angled intersection prestressed concrete beam to solve usual friendship problem, is a kind of novel cross processing mode.
Background technology
Along with urban population constantly increases, urban construction scale is also in continuous expansion, in city, infrastructure but governs the development in city, traffic jam becomes the focus that in city, people pay close attention to, government department makes great efforts the problem of transport solution blocking always, also use a lot of mode: as reorganization and expansion road, newly-built road, elevated bridge etc., wherein elevated bridge is owing to relating to expropriation of land, removing seldom, it is very remarkable that engineering builds up rear effect, for more and more city uses, mostly built up belt roadway travel, roadway travel is comparatively single.When two elevated road intersect, generally adopt graded crossing, connected by longer ramp bridge, expropriation of land, removal pole invest corresponding increase comparatively greatly, and landscape effect is poor, and therefore elevated road at grade intersection is a kind of well settling mode.
Existing elevated road at grade intersection structure is ordinary concrete girder construction, and there is span little, pier stud is many, and the multiplex entity structure in beam portion, from great defect, amount of concrete is at 0.7m3/m2.
Summary of the invention
Be ordinary concrete girder construction for solving existing elevated road at grade intersection structure, there is span little, pier stud is many, and from great problem, the invention provides a kind of right-angled intersection prestressed concrete beam, its technical scheme is as follows:
Right-angled intersection prestressed concrete beam:
Comprise the central frame of the hollow formed that to be joined end to end by east intermediate transverse girder, northern intermediate transverse girder, western intermediate transverse girder, southern intermediate transverse girder;
Intermediate box beam is installed in central frame;
Described intermediate box beam comprises the middle top board being arranged on central frame top, and the central floor panel be arranged on bottom central frame, between middle top board and central floor panel, latticed web is installed, described latticed web comprises some pieces and is parallel to each other and the intermediate lateral web extended along east-west direction, and some pieces are parallel to each other and the longitudinal web in centre extended along North and South direction;
East intermediate transverse girder arranged outside has end, east crossbeam, is provided with east case beam between east intermediate transverse girder and end, east crossbeam;
Described east case beam comprises the east top board be arranged between intermediate transverse girder top, east and end, east cross rail top, and be arranged on bottom the intermediate transverse girder of east and bottom the crossbeam of end, east between east base plate, be provided with some pieces between east top board and east base plate to be parallel to each other and along the east transversal web that east-west direction extends, east transversal web is corresponding with intermediate lateral web, between the northern termination of east intermediate transverse girder and the northern termination of end, east crossbeam, limit web is installed, between the southern termination of east intermediate transverse girder and the southern termination of end, east crossbeam, limit web is installed,
Northern intermediate transverse girder arranged outside has northern end crossbeam, is provided with northern case beam between northern intermediate transverse girder and northern end crossbeam;
Described northern case beam comprises the northern top board be arranged between northern intermediate transverse girder top and northern end cross rail top, and be arranged on bottom northern intermediate transverse girder and bottom the crossbeam of northern end between northern base plate, some pieces are provided with along the north longitudinal direction web that North and South direction extends between northern top board and northern base plate, northern longitudinal web is corresponding with the longitudinal web in centre, between the termination, east of northern intermediate transverse girder and the termination, east of northern end crossbeam, limit web is installed, between the western termination of northern intermediate transverse girder and the western termination of northern end crossbeam, limit web is installed,
Western intermediate transverse girder arranged outside has western end crossbeam, is provided with western case beam between western intermediate transverse girder and western end crossbeam;
Described western case beam comprises the western top board be arranged between western intermediate transverse girder top and western end cross rail top, and be arranged on bottom western intermediate transverse girder and bottom the crossbeam of western end between western base plate, between western top board and western base plate, the some pieces of western transversal web extended along east-west direction are installed, western transversal web is corresponding with intermediate lateral web, between the northern termination of western intermediate transverse girder and the northern termination of western end crossbeam, limit web is installed, between the southern termination of western intermediate transverse girder and the southern termination of western end crossbeam, limit web is installed,
South intermediate transverse girder arranged outside has southern end crossbeam, is provided with southern case beam between southern intermediate transverse girder and southern end crossbeam;
Described southern case beam comprises the southern top board be arranged between southern intermediate transverse girder top and southern end cross rail top, and be arranged on bottom southern intermediate transverse girder and bottom the crossbeam of southern end between southern base plate, some pieces are provided with along the south longitudinal direction web that North and South direction extends between south top board and southern base plate, the longitudinal web in south is corresponding with the longitudinal web in centre, between the termination, east of south intermediate transverse girder and the termination, east of southern end crossbeam, limit web is installed, between the western termination of south intermediate transverse girder and the western termination of southern end crossbeam, limit web is installed,
The bottom of east intermediate transverse girder, northern intermediate transverse girder, western intermediate transverse girder, southern intermediate transverse girder, end, east crossbeam, northern end crossbeam, western end crossbeam, southern end crossbeam is provided with bearing, and bearing is arranged on bridge pier.
Preferably, described intermediate lateral web, middle longitudinal web, east transversal web, northern longitudinal web, western transversal web, southern longitudinal web are provided with the reserving hole channel in U-shaped;
Run through between adjacent east transversal web, intermediate lateral web, western transversal web and be provided with the first long steel bundle;
One end of described first long steel bundle is anchored at end, east cross rail top, first long steel bundle is through the reserving hole channel in the reserving hole channel on the reserving hole channel at the reserving hole channel in the transversal web of east, intermediate transverse girder top, east, intermediate lateral web, the reserving hole channel at western intermediate transverse girder top, western transversal web, and the other end of the first long steel bundle is anchored at western end cross rail top;
Run through between the longitudinal web in adjacent the north, middle longitudinal web, southern longitudinal web and be provided with the second long steel bundle;
One end of described second long steel bundle is anchored at northern end cross rail top, second long steel bundle is through the reserving hole channel on the reserving hole channel on the reserving hole channel on northern longitudinal web, the reserving hole channel at northern intermediate transverse girder top, middle longitudinal web, the reserving hole channel at southern intermediate transverse girder top, southern longitudinal web, and the other end of the second long steel bundle is anchored at southern end cross rail top.
Preferably, bottom the crossbeam of end, described east and short steel bundle is installed between the tooth block on the base plate of east;
Tooth block on the top board of east and be provided with short steel bundle between middle top board, this short steel bundle runs through the reserving hole channel at intermediate transverse girder top, east;
Bottom the crossbeam of northern end and short steel bundle is installed between the tooth block on northern base plate;
Be provided with short steel bundle between tooth block on northern top board and middle top board, this short steel bundle runs through the reserving hole channel at northern intermediate transverse girder top;
Bottom the crossbeam of western end and short steel bundle is installed between the tooth block on western base plate;
Tooth block on western top board and be provided with the reserving hole channel that this short steel bundle of short steel bundle runs through western intermediate transverse girder top between middle top board;
Bottom the end crossbeam of south and short steel bundle is installed between the tooth block on southern base plate;
Be provided with short steel bundle between tooth block on the top board of south and middle top board, this short steel bundle runs through the reserving hole channel at southern intermediate transverse girder top.
Preferably, described bridge pier is arranged on basis by cushion cap.
Preferably, the longitudinal web of described intermediate lateral web and centre respectively has five pieces;
The longitudinal web in the western part extended along North and South direction is also installed between western top board and western base plate;
Between south top board and southern base plate, the southern transversal web extended along east-west direction is also installed.
During use, end, east crossbeam in the present invention, western end crossbeam, northern end crossbeam, southern end crossbeam are all connected with viaduct, viaduct is connected with ground level road again, also will lay bridge floor on right-angled intersection prestressed concrete beam of the present invention, forms the elevated road of at grade intersection.
The present invention adopt two elevated road arrange respectively east-west to viaduct and south-north to viaduct, each direction is 4 motorways, crosspoint adopts at grade intersection, and on bridge, four intersections arrange the red signal system such as green, control to travel intersection, interference problem each other.
The present invention respectively along east-west to south-north to laying prestressed strand, steel bundle is each passed through the crossbeam of the top board of case beam, base plate, web and centre, arranges diverse location height avoid mutual impact at infall.Long steel bundle is in beam anchorage, and short steel bundle is by the anchoring of tooth block inside case beam, and according to stretch-draw spatial choice one-end tension or two ends stretch-draw, the short bundle of pretensioning, bundle is elongated in posttension, and controls end tension stress.
Structural beams span of the present invention is large, and can adopt 3 × 27m spanning, pier stud is few, the multiplex hollow-core construction in beam portion, and from heavy and light, span centre amount of concrete, at 0.45m3/m2, Liang Tirou, is beneficial to the driving of lower floor layer and dodges structure.
Long steel bundle in the present invention mainly meets longitudinal main beam stress function needs and arranges, join Shu Shiying in structure and preferentially select long bundle, long bundle does not have the tooth block in the middle part of structure, the problem of stress concentration of anchoring place can be avoided, structure stress is comparatively continuous, easily meets the designing requirement of the aspect such as intensity, rigidity.
Strictly should control pouring order of concrete during the construction of described right-angled intersection prestressed concrete beam, require first to water each across span centre part, L/4 ~ 3L/4, after water fulcrum portion.Beam external showing up adopts large area template, should handle seam problems well, to ensure good looking appearance and the construction quality of beam body.After beam body concrete builds end at every turn, eventually seam should stay hole across L/4 vicinity.
Present invention also offers a kind of by above-mentioned be applied in elevated bridge time right-angled intersection prestressed concrete beam construction method, this construction method comprises following order and step:
A () first utilizes drilling machine construction pile foundation and cushion cap or excavation construction Extended chemotherapy.
(b) construction bridge pier.
C () sets up full framing, and carry out precompressed, eliminates support nonelastic deformation.Erection template, installs reinforcing bar and prestressed strand.
D () builds continuous beam body concrete.
E () continuous beam body concrete intensity reaches designing requirement post-stress steel bundle.
(f) deck paving and ancillary works construction.
Right-angled intersection prestressed concrete beam has the following advantages:
(a) two or more pieces elevated road at grade intersection, very practical under landform, atural object etc. control.
B () can ensure alignment condition, easily meet view requirement, reduces expropriation of land, removes, take ground less.
C () engineering is implemented smoothly, the duration is short, saves engineering cost, economical rationality, technological innovation.
Can expand further as the present invention:
According to span size, the form of structure such as right-angled intersection reinforced concrete beam, right-angled intersection girder steel can be adopted, to meet the user demand under different condition.
Accompanying drawing explanation
Fig. 1 is two elevated road at grade intersection figure;
Fig. 2 is right-angled intersection prestressed concrete beam plan view of the present invention, there is shown each crossbeam and case beam;
Fig. 3 is right-angled intersection prestressed concrete beam plan view of the present invention, there is shown each web;
Fig. 4 is the Strands Layout figure of the right-angled intersection prestressed concrete beam in Fig. 2;
Fig. 5 is the A-A sectional drawing in Fig. 2;
Fig. 6 is the B-B sectional drawing in Fig. 2;
Fig. 7 is the C-C sectional drawing in Fig. 2;
Fig. 8 is the D-D sectional drawing in Fig. 2;
Fig. 9 is the bridge type arrangement diagram in Fig. 2.
Detailed description of the invention
Right-angled intersection prestressed concrete beam 1 as shown in Figure 2;
Comprise the central frame of the hollow formed that to be joined end to end by east intermediate transverse girder 11, northern intermediate transverse girder 14, western intermediate transverse girder 17, southern intermediate transverse girder 20;
Wherein, east intermediate transverse girder 11 is positioned in the east, along south and north to extension;
Western intermediate transverse girder 17 is positioned at west, along south and north to extension;
Northern intermediate transverse girder 14 is positioned at the north, along east and west to extension;
South intermediate transverse girder 20 is positioned at south, along east and west to extension;
Intermediate box beam 23 is installed in central frame;
Described intermediate box beam 23 comprises the middle top board 32 being arranged on central frame top, and the central floor panel 33 be arranged on bottom central frame, between middle top board 32 and central floor panel 33, latticed web is installed, described latticed web comprises five pieces and is parallel to each other and the intermediate lateral web 24 extended along east-west direction, and five pieces are parallel to each other and the longitudinal web 25 in centre extended along North and South direction;
Outside east intermediate transverse girder 11, namely the east of east intermediate transverse girder 11 is provided with end, east crossbeam 13, and end, east crossbeam 13, along south and north to extension, is provided with east case beam 12 between east intermediate transverse girder 11 and end, east crossbeam 13;
Described east case beam 12 comprises the east top board be arranged between east intermediate transverse girder 11 top and crossbeam 13 top, end, east, and be arranged on bottom east intermediate transverse girder 11 and bottom end, east crossbeam 13 between east base plate, be provided with five pieces between east top board and east base plate to be parallel to each other and along the east transversal web 26 that east-west direction extends, east transversal web 26 is corresponding with intermediate lateral web 24, between the northern termination of east intermediate transverse girder 11 and the northern termination of end, east crossbeam 13, limit web 38 is installed, between the southern termination of east intermediate transverse girder 11 and the southern termination of end, east crossbeam 13, limit web 38 is installed,
Outside northern intermediate transverse girder 14, namely the north of northern intermediate transverse girder 14 is provided with northern end crossbeam 16, and northern end crossbeam 16, along east and west to extension, is provided with northern case beam 15 between northern intermediate transverse girder 14 and northern end crossbeam 16;
Described northern case beam 15 comprises the northern top board be arranged between northern intermediate transverse girder 14 top and crossbeam 16 top, northern end, and to be arranged on bottom northern intermediate transverse girder 14 and bottom northern end crossbeam 16 between northern base plate, five pieces are provided with along the north longitudinal direction web 27 that North and South direction extends between northern top board and northern base plate, northern longitudinal web 27 is corresponding with the longitudinal web 25 in centre, between the termination, east of northern intermediate transverse girder 14 and the termination, east of northern end crossbeam 16, limit web 38 is installed, between the western termination of northern intermediate transverse girder 14 and the western termination of northern end crossbeam 16, limit web 38 is installed,
Outside western intermediate transverse girder 17, namely the west of western intermediate transverse girder 17 is provided with western end crossbeam 19, and western end crossbeam 19, along south and north to extension, is provided with western case beam 18 between western intermediate transverse girder 17 and western end crossbeam 19;
As shown in Figure 7, described western case beam 18 comprises the western top board 34 be arranged between western intermediate transverse girder 17 top and crossbeam 19 top, western end, and to be arranged on bottom western intermediate transverse girder 17 and bottom western end crossbeam 19 between western base plate 35, between western top board 34 and western base plate 35, five pieces of western transversal web 29 extended along east-west direction are installed, western transversal web 29 is corresponding with intermediate lateral web 24, between the northern termination of western intermediate transverse girder 17 and the northern termination of western end crossbeam 19, limit web 38 is installed, between the southern termination of western intermediate transverse girder 17 and the southern termination of western end crossbeam 19, limit web 38 is installed,
Outside the intermediate transverse girder 20 of south, namely the south of southern intermediate transverse girder 20 is provided with southern end crossbeam 22, and southern end crossbeam 22, along east and west to extension, is provided with southern case beam 21 between southern intermediate transverse girder 20 and southern end crossbeam 22;
As shown in Figure 6, described southern case beam 21 comprises the southern top board 36 be arranged between southern intermediate transverse girder 20 top and crossbeam 22 top, southern end, and to be arranged on bottom southern intermediate transverse girder 20 and bottom southern end crossbeam 22 between southern base plate 37, five pieces are provided with along the south longitudinal direction web 31 that North and South direction extends between south top board 36 and southern base plate 37, the longitudinal web 31 in south is corresponding with the longitudinal web 25 in centre, between the termination, east of south intermediate transverse girder 20 and the termination, east of southern end crossbeam 22, limit web 38 is installed, between the western termination of south intermediate transverse girder 20 and the western termination of southern end crossbeam 22, limit web 38 is installed,
As shown in Figure 9, the bottom of east intermediate transverse girder 11, northern intermediate transverse girder 14, western intermediate transverse girder 17, southern intermediate transverse girder 20, end, east crossbeam 13, northern end crossbeam 16, western end crossbeam 19, southern end crossbeam 22 is provided with bearing 2, and bearing 2 is arranged on bridge pier 3.
Described intermediate lateral web 24, middle longitudinal web 25, east transversal web 26, northern longitudinal web 27, western transversal web 29, southern longitudinal web 31 are provided with the reserving hole channel in U-shaped;
As shown in Figure 4, run through between adjacent east transversal web 26, intermediate lateral web 24, western transversal web 29 and be provided with the first long steel bundle 8;
As shown in Figure 5, one end of described first long steel bundle 8 is anchored at crossbeam 13 top, end, east, first long steel bundle 8 is through the reserving hole channel in east transversal web 26, the reserving hole channel at east intermediate transverse girder 11 top, reserving hole channel on intermediate lateral web 24, the reserving hole channel at western intermediate transverse girder 17 top, reserving hole channel in western transversal web 29, the other end of the first long steel bundle 8 is anchored at crossbeam 19 top, western end, left-half is illustrate only in Fig. 5, i.e. western end crossbeam 19 to intermediate lateral web 24 part, right half part and end, intermediate lateral web 24 to east crossbeam 13 part, because of symmetrical with left-half, only lack one block of longitudinal web 28 in western part, therefore omit,
As shown in Figure 4, run through between the longitudinal web 27 in adjacent the north, middle longitudinal web 25, southern longitudinal web 31 and be provided with the second long steel bundle 7;
As shown in Figure 6, one end of described second long steel bundle 7 is anchored at crossbeam 16 top, northern end, second long steel bundle 7 is through the reserving hole channel on northern longitudinal web 27, the reserving hole channel at northern intermediate transverse girder 14 top, reserving hole channel on middle longitudinal web 25, the reserving hole channel at intermediate transverse girder 20 top, south, reserving hole channel on the longitudinal web 31 in south, the other end of the second long steel bundle 7 is anchored at crossbeam 22 top, southern end, left-half is illustrate only in Fig. 6, i.e. crossbeam 22 to centre, southern end longitudinal web 25 part, right half part i.e. middle longitudinal web 25 is to northern end crossbeam 16 part, because of symmetrical with left-half, only lack one piece of southern transversal web 30, therefore omit,
As shown in Figure 4, east intermediate transverse girder 11, western intermediate transverse girder 17 run through along North and South direction and is provided with prestressed strand 6, northern intermediate transverse girder 14, southern intermediate transverse girder 20 run through being provided with prestressed strand 6 along east-west direction.
Bottom end, described east crossbeam 13 and short steel bundle 10 is installed between the tooth block on the base plate of east;
Tooth block on the top board of east and be provided with short steel bundle 10 between middle top board 32, this short steel bundle 10 runs through the reserving hole channel at east intermediate transverse girder 11 top;
As shown in Figure 6, bottom northern end crossbeam 16 and short steel bundle 9 is installed between the tooth block on northern base plate;
Be provided with short steel bundle 9 between tooth block on northern top board and middle top board 32, this short steel bundle 10 runs through the reserving hole channel at northern intermediate transverse girder 14 top;
As shown in Figure 5, bottom western end crossbeam 19 and short steel bundle 10 is installed between the tooth block on western base plate;
Be provided with short steel bundle 10 between tooth block on western top board and middle top board, this short steel bundle 10 runs through the reserving hole channel at western intermediate transverse girder 17 top;
As shown in Figure 6, bottom southern end crossbeam 22 and short steel bundle 9 is installed between the tooth block on southern base plate 37;
Be provided with short steel bundle 9 between tooth block on the top board 36 of south and middle top board 32, this short steel bundle 10 runs through the reserving hole channel at southern intermediate transverse girder 20 top.
As shown in Figure 9, described bridge pier 3 is arranged on basis 5 by cushion cap 4.
As shown in Figure 3, the longitudinal web 28 in the western part extended along North and South direction is also installed between described western top board 34 and western base plate 35;
Between south top board 36 and southern base plate 37, the southern transversal web 30 extended along east-west direction is also installed.
As shown in Figure 7, the south and north flanks limit of described western top board 34, the south and north flanks limit of east top board, the thing dual-side of northern top board, the thing dual-side of southern top board 36 are provided with cantilever, and cantilever is wide is 275cm, the thick 20cm of cantilever outer rim, the thick 50cm of root.
Middle top board 32, western top board 34, east top board, northern top board, southern top board 36 can be designed to an entirety, and correspondingly, central floor panel 33, east base plate, northern base plate, western base plate 35, southern base plate 37 can be designed to an entirety.
Above-mentioned monolithic top board is thick is 23cm, and the distance between monolithic top board and unitary underframe is 200cm, and the thick 22cm of base plate of the center between bridge pier and bridge pier, the base plate of the junction of each case beam and each crossbeam thickeies 42cm.
The slope of limit web is 4:1;
The limit web thickness 40cm of the center between bridge pier and bridge pier, the limit web of the junction of each case beam and each crossbeam thickeies 65cm.
The wide 25m of standard bridge, according to Road width gradual change.Right-angled intersection prestressed concrete beam beam body horizontal wall inscription is consistent with deck transverse slope, and namely beam height is constant.
Claims (5)
1. right-angled intersection prestressed concrete beam, is characterized in that:
Comprise the central frame of the hollow formed that to be joined end to end by east intermediate transverse girder (11), northern intermediate transverse girder (14), western intermediate transverse girder (17), southern intermediate transverse girder (20);
Intermediate box beam (23) is installed in central frame;
Described intermediate box beam (23) comprises the middle top board (32) being arranged on central frame top, and the central floor panel (33) be arranged on bottom central frame, between middle top board (32) and central floor panel (33), latticed web is installed, described latticed web comprises some pieces and is parallel to each other and the intermediate lateral web (24) extended along east-west direction, and some pieces are parallel to each other and the longitudinal web in the centre (25) extended along North and South direction;
East intermediate transverse girder (11) arranged outside has end, east crossbeam (13), is provided with east case beam (12) between east intermediate transverse girder (11) and end, east crossbeam (13);
Described east case beam (12) comprises the east top board be arranged between east intermediate transverse girder (11) top and crossbeam (13) top, end, east, and the east base plate be arranged between east intermediate transverse girder (11) bottom and bottom, end, east crossbeam (13), be provided with some pieces between east top board and east base plate to be parallel to each other and along the east transversal web (26) that east-west direction extends, east transversal web (26) is corresponding with intermediate lateral web (24), between the northern termination of east intermediate transverse girder (11) and the northern termination of end, east crossbeam (13), limit web (38) is installed, between the southern termination of east intermediate transverse girder (11) and the southern termination of end, east crossbeam (13), limit web (38) is installed,
Northern intermediate transverse girder (14) arranged outside has northern end crossbeam (16), is provided with northern case beam (15) between northern intermediate transverse girder (14) and northern end crossbeam (16);
Described northern case beam (15) comprises the northern top board be arranged between northern intermediate transverse girder (14) top and crossbeam (16) top, northern end, and the northern base plate be arranged between northern intermediate transverse girder (14) bottom and bottom, northern end crossbeam (16), some pieces are provided with along the north longitudinal direction web (27) that North and South direction extends between northern top board and northern base plate, northern longitudinal web (27) is corresponding with the longitudinal web (25) in centre, between the termination, east of northern intermediate transverse girder (14) and the termination, east of northern end crossbeam (16), limit web (38) is installed, between the western termination of northern intermediate transverse girder (14) and the western termination of northern end crossbeam (16), limit web (38) is installed,
Western intermediate transverse girder (17) arranged outside has western end crossbeam (19), is provided with western case beam (18) between western intermediate transverse girder (17) and western end crossbeam (19);
Described western case beam (18) comprises the western top board (34) be arranged between western intermediate transverse girder (17) top and crossbeam (19) top, western end, and the western base plate (35) be arranged between western intermediate transverse girder (17) bottom and bottom, western end crossbeam (19), between western top board (34) and western base plate (35), the some pieces of western transversal web (29) extended along east-west direction are installed, western transversal web (29) is corresponding with intermediate lateral web (24), between the northern termination of western intermediate transverse girder (17) and the northern termination of western end crossbeam (19), limit web (38) is installed, between the southern termination of western intermediate transverse girder (17) and the southern termination of western end crossbeam (19), limit web (38) is installed,
South intermediate transverse girder (20) arranged outside has southern end crossbeam (22), is provided with southern case beam (21) between southern intermediate transverse girder (20) and southern end crossbeam (22);
Described southern case beam (21) comprises the southern top board (36) be arranged between southern intermediate transverse girder (20) top and crossbeam (22) top, southern end, and the southern base plate (37) be arranged between southern intermediate transverse girder (20) bottom and bottom, southern end crossbeam (22), some pieces are provided with along south longitudinal direction web (31) that North and South direction extends between south top board (36) and southern base plate (37), the longitudinal web in south (31) is corresponding with the longitudinal web (25) in centre, between the termination, east in south intermediate transverse girder (20) and the termination, east of southern end crossbeam (22), limit web (38) is installed, between the western termination in south intermediate transverse girder (20) and the western termination of southern end crossbeam (22), limit web (38) is installed,
The bottom of east intermediate transverse girder (11), northern intermediate transverse girder (14), western intermediate transverse girder (17), southern intermediate transverse girder (20), end, east crossbeam (13), northern end crossbeam (16), western end crossbeam (19), southern end crossbeam (22) is provided with bearing (2), and bearing (2) is arranged on bridge pier (3).
2. right-angled intersection prestressed concrete beam according to claim 1, is characterized in that:
Described intermediate lateral web (24), middle longitudinal web (25), east transversal web (26), northern longitudinal web (27), western transversal web (29), southern longitudinal web (31) are provided with the reserving hole channel in U-shaped;
Run through between adjacent east transversal web (26), intermediate lateral web (24), western transversal web (29) and be provided with the first long steel bundle (8);
One end of described first long steel bundle (8) is anchored at crossbeam (13) top, end, east, first long steel bundle (8) is through the reserving hole channel in the reserving hole channel on the reserving hole channel at the reserving hole channel in east transversal web (26), east intermediate transverse girder (11) top, intermediate lateral web (24), the reserving hole channel at western intermediate transverse girder (17) top, western transversal web (29), and the other end of the first long steel bundle (8) is anchored at crossbeam (19) top, western end;
Run through between the longitudinal web (27) in adjacent the north, middle longitudinal web (25), southern longitudinal web (31) and be provided with the second long steel bundle (7);
One end of described second long steel bundle (7) is anchored at crossbeam (16) top, northern end, second long steel bundle (7) is through the reserving hole channel on the reserving hole channel at the reserving hole channel on the reserving hole channel at the reserving hole channel on northern longitudinal web (27), northern intermediate transverse girder (14) top, middle longitudinal web (25), southern intermediate transverse girder (20) top, southern longitudinal web (31), and the other end of the second long steel bundle (7) is anchored at crossbeam (22) top, southern end.
3. right-angled intersection prestressed concrete beam according to claim 1 and 2, is characterized in that:
Between tooth block bottom end, described east crossbeam (13) and on the base plate of east, short steel bundle (10) is installed;
Tooth block on the top board of east and be provided with the short steel bundle (10) of running through east intermediate transverse girder (11) top reserving hole channel between middle top board (32);
Bottom northern end crossbeam (16) and between the tooth block on northern base plate, short steel bundle (9) is installed;
Between tooth block on northern top board and middle top board (32), the short steel bundle (9) of running through northern intermediate transverse girder (14) top reserving hole channel is installed;
Bottom western end crossbeam (19) and between the tooth block on western base plate, short steel bundle (10) is installed;
Between tooth block on western top board and middle top board, the short steel bundle (10) of running through western intermediate transverse girder (17) top reserving hole channel is installed;
Between tooth block bottom end crossbeam, south (22) and on southern base plate (37), short steel bundle (9) is installed;
Between tooth block on south top board (36) and middle top board, the short steel bundle (9) of running through southern intermediate transverse girder (20) top reserving hole channel is installed.
4. right-angled intersection prestressed concrete beam according to claim 3, is characterized in that:
Described bridge pier (3) is arranged on basis (5) by cushion cap (4).
5. right-angled intersection prestressed concrete beam according to claim 4, is characterized in that:
The longitudinal web (25) of described intermediate lateral web (24) and centre respectively has five pieces;
The longitudinal web (28) in the western part extended along North and South direction is also installed between western top board (34) and western base plate (35);
Between south top board (36) and southern base plate (37), the southern transversal web (30) extended along east-west direction is also installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410204456.XA CN103952956B (en) | 2014-05-15 | 2014-05-15 | Right-angled intersection prestressed concrete beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410204456.XA CN103952956B (en) | 2014-05-15 | 2014-05-15 | Right-angled intersection prestressed concrete beam |
Publications (2)
| Publication Number | Publication Date |
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| CN103952956A CN103952956A (en) | 2014-07-30 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100247325B1 (en) * | 1997-03-18 | 2000-03-15 | 이장휘 | Road crossing system |
| CN102220739A (en) * | 2011-04-01 | 2011-10-19 | 河南省交通规划勘察设计院有限责任公司 | Corrugated steel web prestressed concrete continuous box girder and construction method thereof |
| CN202047353U (en) * | 2011-03-22 | 2011-11-23 | 中国铁道科学研究院铁道建筑研究所 | Concrete bridge body of expressway or railway and prestressed concrete continuous box girder |
| CN202131546U (en) * | 2011-05-12 | 2012-02-01 | 解中原 | Motor vehicle and non-motor vehicle total-intercommunication flyover |
| CN203834302U (en) * | 2014-05-15 | 2014-09-17 | 中铁二院昆明勘察设计研究院有限责任公司 | Cross prestressed concrete beam |
-
2014
- 2014-05-15 CN CN201410204456.XA patent/CN103952956B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100247325B1 (en) * | 1997-03-18 | 2000-03-15 | 이장휘 | Road crossing system |
| CN202047353U (en) * | 2011-03-22 | 2011-11-23 | 中国铁道科学研究院铁道建筑研究所 | Concrete bridge body of expressway or railway and prestressed concrete continuous box girder |
| CN102220739A (en) * | 2011-04-01 | 2011-10-19 | 河南省交通规划勘察设计院有限责任公司 | Corrugated steel web prestressed concrete continuous box girder and construction method thereof |
| CN202131546U (en) * | 2011-05-12 | 2012-02-01 | 解中原 | Motor vehicle and non-motor vehicle total-intercommunication flyover |
| CN203834302U (en) * | 2014-05-15 | 2014-09-17 | 中铁二院昆明勘察设计研究院有限责任公司 | Cross prestressed concrete beam |
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