CN111501521A - Assembled aluminum alloy prestress truss bridge - Google Patents
Assembled aluminum alloy prestress truss bridge Download PDFInfo
- Publication number
- CN111501521A CN111501521A CN202010355496.XA CN202010355496A CN111501521A CN 111501521 A CN111501521 A CN 111501521A CN 202010355496 A CN202010355496 A CN 202010355496A CN 111501521 A CN111501521 A CN 111501521A
- Authority
- CN
- China
- Prior art keywords
- main truss
- piece
- fixedly connected
- bridge
- pieces
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D6/00—Truss-type bridges
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Rod-Shaped Construction Members (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention relates to the technical field of bridge construction, in particular to an assembled aluminum alloy prestressed truss bridge, which is characterized in that two groups of main truss beam piece assemblies, a plurality of large cross beam pieces, a plurality of small cross beam pieces and a plurality of longitudinal beams are all made of aluminum alloy materials, the two groups of main truss beam piece assemblies are arranged in parallel at intervals, and the large cross beam pieces, the small cross beam pieces and the longitudinal beams are all arranged between the two groups of main truss beam piece assemblies; and the two large cross beam pieces at the two ends of the two groups of main truss beam piece assemblies are respectively provided with a prestressed inhaul cable assembly on the surface far away from each other. The invention has the beneficial effects that: the invention reduces a series of problems of field processing, is convenient and fast to construct and is formed by modular assembly; the aluminum alloy truss and the prestressed stay cable assembly are stressed in a cooperative mode, on one hand, the lower chord of the bridge is resisted to be pulled, more of the lower chord is tensioned to improve the rigidity of the bridge, the problems that the rigidity of the aluminum alloy bridge is insufficient and the bridge body slightly shakes are solved, and the passing comfort of the pedestrian bridge is improved.
Description
Technical Field
The invention relates to the technical field of bridge construction, in particular to an assembly type aluminum alloy prestressed truss bridge.
Background
In the urban construction development process, bridge construction is a key ring, wherein the pedestrian overpass develops rapidly, and the pedestrian overpass plays an important role in guaranteeing the safety of pedestrians and improving urban traffic with unique advantages. However, the pedestrian overpass is a big source of congestion in the construction and construction stage, so that the pedestrian overpass is assembled in a large direction for development. Most of the traditional fabricated footbridge is a concrete or steel bridge. The weight of the concrete bridge assembly segment is large. The assembly type component needs large-scale equipment transportation and hoisting; the steel bridge is easy to rust, the durability is poor, the maintenance cost in the later period is high, and the construction cost is increased.
Disclosure of Invention
The invention aims to solve the technical problem of providing an assembly type aluminum alloy prestressed truss bridge, wherein the stress performance of the bridge can be improved by adding a prestressed stay cable assembly, the prestressed stay cable assembly is arranged on the tension side of the bridge, the stress distribution of aluminum alloy can be greatly improved, the rigidity of a bridge body is improved, and the comfort of pedestrians passing through the bridge is improved.
The technical scheme for solving the technical problems is as follows: an assembly type aluminum alloy prestressed truss bridge comprises two groups of main truss beam piece assemblies, a plurality of large cross beam pieces, a plurality of small cross beam pieces, a plurality of longitudinal beams, a plurality of node connecting mechanisms and a prestressed inhaul cable assembly, wherein the two groups of main truss beam piece assemblies, the plurality of large cross beam pieces, the plurality of small cross beam pieces and the plurality of longitudinal beams are all made of aluminum alloy materials, the two groups of main truss beam piece assemblies are arranged in parallel at intervals, and the plurality of large cross beam pieces, the plurality of small cross beam pieces and the plurality of longitudinal beams are all arranged between the two groups of main truss beam piece assemblies;
the large cross beam pieces are uniformly arranged at intervals, two side edges of the large cross beam pieces are fixedly connected with the two groups of main truss beam piece assemblies through the joint connecting mechanism respectively, and the large cross beam pieces are arranged between two ends of the two groups of main truss beam piece assemblies;
the small cross beam pieces are arranged between every two adjacent large cross beam pieces, and two side edges of each small cross beam piece are fixedly connected with the two groups of main truss beam piece assemblies through first connecting sleeve core assemblies respectively; the large cross beam piece is fixedly connected with the adjacent small cross beam piece through the longitudinal beam, and two ends of the longitudinal beam are respectively and fixedly connected with the large cross beam piece and the small cross beam piece through second connecting sleeve assemblies;
and the prestressed inhaul cable assemblies are arranged on the surfaces, far away from each other, of the two large cross beam pieces at the two ends of the two groups of main truss beam piece assemblies.
The invention has the beneficial effects that: according to the invention, the main truss girder piece assembly, the large crossbeam piece, the small crossbeam piece and the longitudinal girder are processed in a factory, so that a series of problems of field processing are reduced, the construction is convenient and fast, and the modular assembly molding is realized; the node connecting mechanism is spliced with the first connecting sleeve core assembly and the second connecting sleeve core assembly, so that the integral stability of the bridge can be ensured, and the node rigidity is improved; the aluminum alloy truss and the prestressed stay cable assembly are stressed in a cooperative mode, on one hand, the lower chord of the bridge is resisted to be pulled, more of the lower chord is tensioned to improve the rigidity of the bridge, the problems that the rigidity of the aluminum alloy bridge is insufficient and the bridge body slightly shakes are solved, and the passing comfort of the pedestrian bridge is improved.
On the basis of the technical scheme, the invention can be further improved as follows.
Further, the main truss girder piece assembly comprises a plurality of main truss girder pieces which are sequentially connected end to end and located on the same plane, the main truss girder pieces are arranged at two ends of the main truss girder piece assembly, the main truss girder pieces are fixedly connected with the large crossbeam piece and the main truss girder pieces are adjacent to each other, one main truss girder piece is arranged between the main truss girder pieces, one side of each large crossbeam piece is arranged in one group of two main truss girder pieces in the main truss girder piece assembly, the main truss girder pieces are respectively arranged between the main truss girder pieces and respectively pass through the large crossbeam piece, the other side of each large crossbeam piece is located in the other group of two main truss girder piece assemblies, the main truss pieces are respectively arranged between the main truss girder pieces and respectively pass through the large crossbeam piece, the small crossbeam piece passes through the first connecting sleeve assembly and the two groups of main truss girder pieces in the main truss girder piece assembly The beam pieces are fixedly connected.
The beneficial effect of adopting the further scheme is that: the main truss girder piece assembly is spliced through the main truss girder pieces and is fixedly spliced with the large crossbeam piece when being spliced, so that on one hand, the transportation of each part of the truss bridge is facilitated, on the other hand, the stability and firmness of connection of the main truss girder pieces and the large crossbeam piece can be ensured, and the integral strength and rigidity of the truss bridge are ensured.
Further, the main truss girder piece comprises an upper chord member, a lower chord member, a first straight web member and oblique web members, wherein the upper chord member and the lower chord member are horizontally arranged, the upper chord member is arranged above the lower chord member vertically, the first straight web member is vertically arranged between the upper chord member and the lower chord member, the top end of the first straight web member is fixedly connected with the middle part of the upper chord member, the bottom end of the first straight web member is fixedly connected with the middle part of the lower chord member, the oblique web members are arranged on two sides of the first straight web member, the top ends of the two oblique web members are fixedly connected with the middle part of the upper chord member, and the bottom ends of the two oblique web members are fixedly connected with two ends of the lower chord member respectively; be equipped with on the both ends of lower chord and be used for passing through node coupling mechanism with the first fixed orifices of the bottom fixed connection of the side of big beam piece, the both ends of upper chord are equipped with and are used for passing through node coupling mechanism with the top fixed connection second fixed orifices of the side of big beam piece, the lower extreme of first straight-web member is equipped with and is used for passing through first connecting sleeve core subassembly with little beam piece fixed connection's third fixed orifices.
The beneficial effect of adopting the further scheme is that: the upper chord member and the lower chord member are fixedly connected through the first straight web members and the inclined web members, so that the strength of a single main truss girder piece can be ensured, and the main truss girder pieces can be conveniently connected.
Furthermore, the large cross beam piece comprises two second straight web members which are vertically arranged at intervals, two horizontal first cross beams which are vertically arranged at intervals are arranged between the two second straight web members, a vertically arranged first vertical beam is arranged between the two first cross beams, two ends of the first vertical beam are respectively fixedly connected with the middle parts of the two first cross beams, first oblique cross beams are respectively arranged on two sides of the first vertical beam, the top ends of the two first oblique cross beams are respectively fixedly connected with two ends of the first cross beam positioned above, and the bottom ends of the two first oblique cross beams are respectively fixedly connected with the middle part of the first cross beam positioned below; two the top bottom both ends of the straight web member of second all are equipped with and are used for passing through node coupling mechanism connects the fourth fixed orifices of main truss girder piece subassembly, two the bottom of the straight web member of second still is equipped with and is used for connecting the prestressing force cable penetrating hole of prestressing force cable subassembly and be used for passing through node coupling mechanism connects the fifth fixed orifices of main truss girder piece subassembly is located the top the middle part of first crossbeam is equipped with and is used for passing through second adapter sleeve subassembly fixed connection the sixth fixed orifices of longeron.
The beneficial effect of adopting the further scheme is that: through first crossbeam, first perpendicular roof beam and first oblique crossbeam with the straight web pole of the second of two vertical settings carry out fixed connection, two straight web poles of second carry out fixed connection with two sets of main truss girder piece subassemblies respectively, ensure fastness and stability that big crossbeam piece and main truss girder piece subassembly are connected, simultaneously, big crossbeam piece has sufficient intensity in order to realize supporting the bridge floor.
Furthermore, the small cross beam piece comprises two horizontal second cross beams which are arranged at intervals up and down, a vertically arranged second vertical beam is arranged between the two second cross beams, the two top and bottom ends of the second vertical beam are respectively and fixedly connected with the middle parts of the two second cross beams, second oblique cross beams are respectively arranged on the two sides of the second vertical beam, the top ends of the two second oblique cross beams are respectively and fixedly connected with the two ends of the second cross beam positioned above, and the bottom ends of the two second oblique cross beams are respectively and fixedly connected with the middle part of the second cross beam positioned below; two the both ends of second crossbeam all are equipped with and are used for passing through first connecting sleeve subassembly with main truss piece of a beam subassembly fixed connection's seventh fixed orifices, are located the top the middle part of second crossbeam is equipped with and is used for passing through second connecting sleeve subassembly with longeron fixed connection's eighth fixed orifices.
The beneficial effect of adopting the further scheme is that: the arrangement of the small cross beam pieces can further improve the stability and the strength of connection between the two groups of main truss beam piece assemblies, and meanwhile, the supporting force of the bridge deck is further improved.
Further, two the second crossbeam is square pipe, first connecting sleeve core subassembly includes first fixed steel sheet and two and is used for inserting two respectively first steel pipe in the tip of second crossbeam, two first steel pipe parallel arrangement, and the homogeneous end with the one side fixed connection of first fixed steel sheet, first fixed steel sheet is equipped with a plurality ofly and is used for through screw rod subassembly fixed connection the ninth fixed orifices of main truss girder piece subassembly, two be equipped with the tenth fixed orifices on the first steel pipe, the tenth fixed orifices pass through screw rod subassembly with seventh fixed orifices fixed connection.
The beneficial effect of adopting the further scheme is that: the two ends of two second crossbeams of the small crossbeam piece are respectively connected with one first steel pipe, and the same first connecting sleeve core assembly is connected with two second crossbeams to form a T-shaped node, so that the node rigidity is improved, and unnecessary punching and bolt waste are reduced.
Furthermore, the prestressed inhaul cable assembly comprises an anchor plate, an anchorage device and a steel strand, one end of the steel strand is fixedly connected with the large cross beam piece through the anchorage device, and the anchor plate is locked and attached to the large cross beam piece through the anchorage device.
The beneficial effect of adopting the further scheme is that: one end of the steel strand is fixedly connected with the large cross beam piece through an anchorage device, so that the connection strength of the prestressed inhaul cable assembly and the large cross beam piece is ensured, and the enough prestress can be generated on the whole truss bridge through the steel strand, thereby improving the rigidity of the truss bridge.
Furthermore, the node connecting mechanism comprises a node plate, a plurality of mounting holes for the screw assemblies to pass through are formed in the node plate, and the node plate is fixedly connected with the main truss girder piece assembly and the large crossbeam piece through the screw assemblies.
The beneficial effect of adopting the further scheme is that: the main truss beam piece assembly and the large beam piece are fixedly connected through the gusset plate, so that the connection stability is ensured, the rigidity of the joint is ensured, and the problem of strength degradation of the aluminum material at the welding point when welding is adopted is avoided.
Further, the longeron is aluminum alloy side's pipe, the both ends of longeron all be equipped with be used for with second connecting sleeve subassembly fixed connection's eleventh fixed orifices.
The beneficial effect of adopting the further scheme is that: the longeron adopts aluminum alloy side's pipe, and the both ends of longeron all have the cavity, are convenient for be connected with second adapter sleeve subassembly.
Further, the second connecting sleeve component comprises a second fixed steel plate and a second steel pipe inserted into the end part of the longitudinal beam, one end of the second steel pipe is fixedly connected with one side of the second fixed steel plate, the second fixed steel plate is provided with a twelfth fixing hole used for being fixedly connected with the large cross beam piece or the small cross beam piece through a screw rod component, the second steel pipe is provided with a thirteenth fixing hole, and the thirteenth fixing hole is fixedly connected with the eleventh fixing hole through a screw rod component.
The beneficial effect of adopting the further scheme is that: insert the second steel pipe in the tip of longeron, connect through screw rod subassembly, then carry out fixed connection with the fixed steel sheet of second and big crossbeam piece or little crossbeam piece, the installation of the longeron of being convenient for can ensure the intensity of installation.
Drawings
FIG. 1 is a schematic perspective view of a main truss beam segment according to the present invention;
FIG. 2 is a front view of the primary truss beam segments of the present invention;
FIG. 3 is a schematic perspective view of a large cross beam of the present invention;
FIG. 4 is a front view of a large cross piece in the present invention;
FIG. 5 is a side view of a large beam panel of the present invention;
FIG. 6 is a schematic perspective view of a small beam piece according to the present invention;
FIG. 7 is a front view of a small beam panel of the present invention;
FIG. 8 is a schematic perspective view of a stringer of the present invention;
FIG. 9 is a schematic structural view of a gusset connection mechanism of the present invention, wherein four gusset plate embodiments are provided;
FIG. 10 is a perspective view of a first connecting sleeve assembly of the present invention;
FIG. 11 is a schematic perspective view of a second adapter core assembly according to the present invention;
FIG. 12 is a schematic view of the connection between the main truss beam piece and the small beam piece of the present invention;
FIG. 13 is a schematic view of the connection of a large cross piece and a longitudinal beam in the present invention;
FIG. 14 is a schematic view of a small beam piece and stringer connection of the present invention;
FIG. 15 is a schematic view of the connection of three main truss beams and a large cross beam in the present invention;
FIG. 16 is a schematic diagram of the assembly connection of two main truss beam pieces and a large cross beam piece at the end of the truss;
FIG. 17 is an installation schematic of the pre-stressed cable assembly of the present invention;
FIG. 18 is a schematic view of the truss assembly molding of the present invention;
FIG. 19 is a schematic view of simply supporting and erecting a truss bridge according to the present invention;
fig. 20 is a schematic view illustrating the continuous erection of the truss bridge according to the present invention.
In the drawings, the components represented by the respective reference numerals are listed below:
1. a main truss girder piece, 11, an upper chord member, 12, a lower chord member, 13, a first straight web member, 14, a diagonal web member, 15, a first fixing hole, 16, a second fixing hole, 17, a third fixing hole, 2, a large beam piece, 21, a second straight web member, 22, a first beam, 23, a first diagonal beam, 24, a first vertical beam, 25, a prestressed rope-passing hole, 26, a fifth fixing hole, 27, a fourth fixing hole, 28, a sixth fixing hole, 3, a small beam piece, 31, a second beam, 32, a second diagonal beam, 33, a second vertical beam, 34, an eighth fixing hole, 35, a seventh fixing hole, 4, a longitudinal beam, 41, an eleventh fixing hole, 5, a prestressed cable assembly, 51, an anchor plate, 52, an anchor, 53, a steel strand, 6, a node connecting mechanism, 61, a lower node plate, 62, an upper node plate, 63, a side-lower node plate, 64, a side-upper node plate, 7, a first connecting plate, a core assembly, 71. ninth fixed orifices, 72, first steel pipe, 73, tenth fixed orifices, 74, first fixed steel plate, 8, second connecting sleeve subassembly, 81, second fixed steel plate, 82, second steel pipe, 83, thirteenth fixed orifices, 84, twelfth fixed orifices, 9, glass bridge floor.
Detailed Description
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.
As shown in fig. 18, an embodiment of the present invention includes two groups of main truss girder pieces 1, a plurality of large girder pieces 2, a plurality of small girder pieces 3, a plurality of longitudinal girders 4, a plurality of node connection mechanisms 6, and a prestressed guy cable assembly 5, where the two groups of main truss girder pieces 1, the plurality of large girder pieces 2, the plurality of small girder pieces 3, and the plurality of longitudinal girders 4 are made of an aluminum alloy material, the two groups of main truss girder pieces 1 are arranged in parallel and at intervals, and the plurality of large girder pieces 2, the plurality of small girder pieces 3, and the plurality of longitudinal girders 4 are all arranged between the two groups of main truss girder pieces 1;
the large cross beam pieces 2 are uniformly arranged at intervals, two side edges of the large cross beam pieces 2 are fixedly connected with the two groups of main truss girder piece 1 assemblies through the node connecting mechanisms 6 respectively, and the large cross beam pieces 2 are arranged between two ends of the two groups of main truss girder piece 1 assemblies;
the small cross beam pieces 3 are arranged between every two adjacent large cross beam pieces 2, and two side edges of each small cross beam piece 3 are fixedly connected with the two groups of main truss beam piece 1 assemblies through first connecting sleeve core assemblies 7; the large cross beam piece 2 is fixedly connected with the adjacent small cross beam piece 3 through the longitudinal beam 4, and two ends of the longitudinal beam 4 are respectively fixedly connected with the large cross beam piece 2 and the small cross beam piece 3 through second connecting sleeve components 8;
two of the two ends of the main truss beam piece 1 assemblies are positioned, and the large cross beam piece 2 is arranged on one surface far away from each other and is provided with the prestress inhaul cable assembly 5.
In this embodiment, a glass bridge deck 9 is laid on the tops of the large beam piece 2 and the small beam piece 3, and the glass bridge deck 9 is made of toughened glass.
In the invention, the main truss beam piece 1 assembly, the large beam piece 2, the small beam piece 3 and the longitudinal beam 4 are processed and finished in a factory, so that a series of problems of field processing are reduced, the construction is convenient and fast, and the modular splicing molding is realized; the node connecting mechanism 6 is spliced with the first connecting sleeve core assembly 7 and the second connecting sleeve core assembly 8, so that the integral stability of the bridge can be ensured, and the node rigidity is improved; the aluminum alloy truss and the prestressed stay cable assembly 5 are stressed in a cooperative mode, on one hand, the lower chord 12 of the bridge is resisted to be tensioned, more of the lower chord is tensioned, the rigidity of the bridge is improved, the problems that the rigidity of the aluminum alloy bridge is insufficient, a bridge body slightly shakes are solved, and the passing comfort of the pedestrian bridge is improved.
Further, the main truss girder piece 1 assembly comprises a plurality of main truss girder pieces 1 which are sequentially connected end to end and are positioned on the same plane, the main truss girder pieces 1 at two ends of two groups of the main truss girder piece 1 assemblies are fixedly connected with the large crossbeam piece 2 through the node connecting mechanism 6, one large crossbeam piece 2 is arranged between two adjacent main truss girder pieces 1 of the same group of the main truss girder piece 1 assemblies, one side edge of the large crossbeam piece 2 is arranged between the two main truss girder pieces 1 in one group of the main truss girder piece 1 assemblies and is respectively and fixedly connected with the two main truss girder pieces 1 through the node connecting mechanism 6, the other side edge of the large crossbeam piece 2 is positioned between the two main truss girder pieces 1 in the other group of the main truss girder piece 1 assemblies and is respectively and fixedly connected with the two main truss girder pieces 1 through the node connecting mechanism 6, the small beam piece 3 is fixedly connected with the main truss beam piece 1 in the main truss beam piece 1 assembly through the first connecting sleeve core assembly 7. The main truss girder piece 1 assembly is spliced through the main truss girder pieces 1 and is fixedly spliced with the large crossbeam piece 2 when being spliced, so that on one hand, the transportation of each part of the truss bridge is facilitated, on the other hand, the stability and firmness of the connection of the main truss girder pieces 1 and the large crossbeam piece 2 can be ensured, and the integral strength and rigidity of the truss bridge are ensured.
As shown in fig. 1 and 2, the main truss girder 1 includes an upper chord 11, a lower chord 12, a first straight web member 13 and a diagonal web member 14, the upper chord 11 and the lower chord 12 are both horizontally disposed, specifically, in the embodiment of the present invention, the upper chord 11, the lower chord 12, the first straight web member 13 and the diagonal web member 14 are all aluminum alloy square tubes, the upper chord 11 is disposed vertically above the lower chord 12, the first straight web member 13 is vertically disposed between the upper chord 11 and the lower chord 12, the top end of the first straight web member 13 is fixedly connected to the middle of the upper chord 11, the bottom end of the first straight web member 13 is fixedly connected to the middle of the lower chord 12, in the embodiment, both ends of the first straight web member 13 are respectively fixedly connected to the upper chord 11 and the lower chord 12 by welding, both sides of the first straight web member 13 are both provided with the diagonal web member 14, the top ends of the two diagonal web members 14 are fixedly connected with the middle part of the upper chord 11, preferably, the top ends of the two diagonal web members 14 are welded and fixed with the middle part of the upper chord 11 and the top end of the first straight web member 13, so as to improve the strength of the fixed connection and ensure the firmness of the fixed connection, the bottom ends of the two diagonal web members 14 are fixedly connected with the two ends of the lower chord 12 respectively, and preferably, the bottom ends of the diagonal web members 14 are fixedly connected with the two ends of the lower chord 12 by welding; be equipped with on the both ends of lower chord 12 and be used for passing through node coupling mechanism 6 with the bottom fixed connection's of the side of big beam piece 2 first fixed orifices 15, the hole axis of first fixed orifices 15 with the length direction of lower chord 12 sets up perpendicularly and simultaneously with the length direction of first straight web member 13 sets up perpendicularly, the both ends of going up chord 11 are equipped with and are used for passing through node coupling mechanism 6 with the top fixed connection second fixed orifices 16 of the side of big beam piece 2, the hole axis of second fixed orifices 16 with the length direction of last chord 11 sets up perpendicularly and simultaneously with the length direction of first straight web member 13 sets up perpendicularly, the lower extreme of first straight web member 13 is equipped with and is used for passing through first connecting sleeve core subassembly 7 with little beam piece 3 fixed connection's third fixed orifices 17, the hole axis of third fixed orifices 17 with the length direction of first straight web member 13 sets up perpendicularly and simultaneously with the length of lower chord 12 The direction is vertically arranged. The upper chord 11 and the lower chord 12 are fixedly connected by the first straight web members 13 and the diagonal web members 14, so that the strength of the single main truss girder segments 1 can be ensured, and the connection between the main truss girder segments 1 is facilitated.
As shown in fig. 3, 4 and 5, the large cross beam piece 2 includes two second straight web members 21 vertically arranged at an interval, two first horizontal cross beams 22 vertically arranged at an interval are arranged between the two second straight web members 21, the second straight web members 21 are square tubes, the facing sides of the two second straight web members 21 are parallel to each other, so as to increase the connection surface with the end of the first cross beam 22 and improve the strength of the fixed connection, in the two first cross beams 22, two ends of the first cross beam 22 located above are respectively connected with the lower portions of the facing sides of the two second straight web members 21 by welding, the bottom end of the first cross beam 22 located below is fixedly connected with the bottom ends of the two second straight web members 21 by welding, a vertically arranged first vertical beam 24 is arranged between the two first cross beams 22, two ends of the first vertical beam 24 are respectively fixedly connected with the middle portions of the two first cross beams 22 by welding, the two sides of the first vertical beam 24 are respectively provided with a first oblique cross beam 23, the top ends of the two first oblique cross beams 23 are respectively fixedly connected with the two ends of the first cross beam 22 positioned above through welding, meanwhile, the top ends of the two first oblique cross beams 23 are respectively fixedly connected with the side surfaces of the two straight web members 21 through welding, the bottom ends of the two first oblique cross beams 23 are respectively fixedly connected with the middle part of the first cross beam 22 positioned below through welding, and meanwhile, the bottom ends of the two first oblique cross beams 23 are also fixedly connected with the first cross beam 22 positioned below through welding; in this embodiment, the upper surface of the first beam 22 located above is horizontally disposed, so as to facilitate installation of the glass bridge deck 9 and reduce pressure on the glass bridge deck 9, and if the top of the first beam 22 located above is an edge or an arc, the pressure on the glass bridge deck 9 is greater, which affects the glass bridge deck 9; the top and bottom ends of the two second straight web members 21 are respectively provided with a fourth fixing hole 27 for connecting the main truss girder piece 1 assembly through the node connecting mechanism 6, the hole axis of the fourth fixing hole 27 is perpendicular to the length direction of the second straight web member 21 and is parallel to the length direction of the first cross beam 22, the bottom ends of the two second straight web members 21 are further provided with a prestress rope penetrating hole 25 for connecting the prestress rope assembly 5 and a fifth fixing hole 26 for connecting the main truss girder piece 1 assembly through the node connecting mechanism 6, the hole axis of the prestress rope penetrating hole 25 is perpendicular to the length direction of the second straight web member 21 and is perpendicular to the length direction of the first cross beam 22, the hole axis of the fifth fixing hole 26 is perpendicular to the length direction of the second straight web member 21, and simultaneously with the length direction parallel arrangement of first crossbeam 22 is located the top the middle part of first crossbeam 22 is equipped with and is used for passing through second connection cover subassembly 8 fixed connection the sixth fixed orifices 28 of longeron 4, the hole axis of sixth fixed orifices 28 with the length direction of first crossbeam 22 sets up perpendicularly, and simultaneously with the length direction of second straight web member 21 sets up perpendicularly. Through first crossbeam 22, first perpendicular roof beam 24 and first oblique crossbeam 23 with the straight web member 21 of second of two vertical settings carry out fixed connection, two straight web members 21 of second carry out fixed connection with two sets of main truss girder pieces 1 subassembly respectively, ensure the fastness and the stability of big crossbeam piece 2 and main truss girder piece 1 subassembly connection, simultaneously, big crossbeam piece 2 has sufficient intensity in order to realize supporting the bridge floor.
Preferably, as shown in fig. 6 and 7, the small cross beam piece 3 includes two levels and is that the interval sets up the second crossbeam 31 from top to bottom, two be equipped with between the second crossbeam 31 and vertically set up the second and erect roof beam 33, the top and bottom both ends of the second perpendicular roof beam 33 respectively with two the middle part of second crossbeam 31 passes through welded fastening and is connected, the both sides of the second perpendicular roof beam 33 all are equipped with the second oblique crossbeam 32, the second crossbeam 31, the second perpendicular roof beam 33 and the second oblique roof beam 32 are square pipe, and two the equal level of upper surface of second crossbeam 31 sets up, two the top of second oblique crossbeam 32 respectively with be located the top the both ends of second crossbeam 31 pass through welded fastening and is connected, two the bottom of second oblique crossbeam 32 all with be located the below the middle part of second crossbeam 31 passes through welded fastening and is connected, two the bottom of second oblique crossbeam 32 still simultaneously with be located the below the upper surface of second crossbeam 31 passes through welded fastening and is connected Through the arrangement, the overall strength of the small beam piece 3 can be improved; in this embodiment, the upper surface of the second beam 31 located above and the upper surface of the first beam 22 located above are located at the same horizontal plane, so as to support the glass bridge deck 9 simultaneously; two the both ends of second crossbeam 31 all are equipped with and are used for passing through first connecting sleeve group spare 7 with 1 subassembly fixed connection's of main truss girder piece seventh fixed orifices 35 is located the top the middle part of second crossbeam 31 is equipped with and is used for passing through second connecting sleeve group spare 8 with 4 fixed connection's of longeron eighth fixed orifices 34, the axis of seventh fixed orifices 35 and the axis of eighth fixed orifices 34 all with the length direction of second crossbeam 31 sets up perpendicularly, and with the length direction of second perpendicular roof beam 33 sets up perpendicularly. The arrangement of the small beam pieces 3 can further improve the stability and the strength of connection between the two groups of main truss beam pieces 1, and meanwhile, the supporting force of the bridge deck is further improved.
Preferably, two second crossbeam 31 is square pipe, as shown in fig. 10, first connecting bushing group spare 7 includes first fixed steel sheet 74 and two and is used for inserting two respectively first steel pipe 72 in the tip of second crossbeam 31, two first steel pipe 72 parallel arrangement, and the uniform end with one side fixed connection of first fixed steel sheet 74, first fixed steel sheet 74 is equipped with a plurality ofly and is used for through screw rod subassembly fixed connection the ninth fixed orifices 71 of main truss girder piece 1 subassembly, two be equipped with tenth fixed orifices 73 on the first steel pipe 72, the hole axis of tenth fixed orifices 73 with the length direction of first steel pipe 72 sets up perpendicularly, tenth fixed orifices 73 pass through screw rod subassembly with seventh fixed orifices 35 fixed connection. Two ends of two second cross beams 31 of the small cross beam piece 3 are respectively connected with one first steel pipe 72, and the same first connecting sleeve core assembly 7 is connected with two second cross beams 31 to form a T-shaped node, so that the node rigidity is improved, and unnecessary punching and bolt waste are reduced.
As shown in fig. 17, the prestressed cable assembly 5 includes an anchor plate 51, an anchor 52 and a steel strand 53, one end of the steel strand 53 is fixedly connected with the large cross beam piece 2 through the anchor 52, and the anchor plate 51 is locked and attached to the large cross beam piece 2 through the anchor 52. One end of the steel strand 53 is fixedly connected with the large cross beam piece 2 through the anchorage device 52, so that the connection strength of the prestressed inhaul cable assembly 5 and the large cross beam piece 2 is ensured, and the enough prestress can be generated on the whole truss bridge through the steel strand 53, thereby improving the rigidity of the truss bridge.
As shown in fig. 9, the node connecting mechanism 6 includes a node plate, a plurality of mounting holes for the screw assemblies to pass through are formed in the node plate, and the node plate is fixedly connected to the main truss girder segment 1 assembly and the large beam segment 2 through the screw assemblies. The main truss beam piece 1 assembly and the large beam piece 2 are fixedly connected through the gusset plates, so that the connection stability is ensured, the rigidity of the joint is ensured, and the problem of degradation of the strength of the aluminum material at the welding point during welding is avoided. In the embodiment of the present invention, the gusset plates may be divided into a lower gusset plate 61, an upper gusset plate 62, an edge lower gusset plate 63, and an edge gusset plate 64 according to the position of the joint and the size of the joint surface.
As shown in fig. 8, longeron 4 is aluminum alloy square pipe, longeron 4's both ends all be equipped with be used for with 8 fixed connection's of second connection cover core subassembly eleventh fixed orifices 41, the axis of eleventh fixed orifices 41 with longeron 4's the perpendicular setting of length direction, longeron 4 adopt aluminum alloy square pipe, and longeron 4's both ends all have the cavity, are convenient for be connected with second connection cover core subassembly 8.
As shown in fig. 11, the second connecting sleeve assembly 8 includes a second fixing steel plate 81 and a second steel pipe 82 used for being inserted into the end portion of the longitudinal beam 4, one end of the second steel pipe 82 is connected with one side of the second fixing steel plate 81 through welding, the second fixing steel plate 81 is provided with a twelfth fixing hole 84 used for being connected with the large beam piece 2 or the small beam piece 3 through a screw assembly, the second steel pipe 82 is provided with a thirteenth fixing hole 83, a hole axis of the thirteenth fixing hole 83 is perpendicular to the length direction of the second steel pipe 82, and the thirteenth fixing hole 83 is connected with the eleventh fixing hole 41 through a screw assembly. The second steel pipe 82 is inserted into the end part of the longitudinal beam 4, connected through the screw assembly, and then the second fixing steel plate 81 is fixedly connected with the large cross beam piece 2 or the small cross beam piece 3, so that the installation of the longitudinal beam 4 is facilitated, and the installation strength can be ensured.
The design is assembled and erected, the main truss beam piece 1, the large beam piece 2, the small beam piece 3, the node connecting mechanism 6, the first connecting sleeve core assembly 7, the second connecting sleeve core assembly 8 and the screw rod assembly are prepared, and the bridge is assembled. The method comprises the following specific steps:
(1) installing a main truss beam piece 1 and a small beam piece 3, and connecting the two parts by adopting a first connecting sleeve core assembly 7; firstly, connecting a main truss beam piece 1 with a connecting sleeve core, aligning a third fixing hole 17 with a ninth fixing hole 71, and screwing by using three bolts; then, the second cross beam 31 of the small cross beam piece 3 is sleeved on the first steel pipe 72, the seventh fixing hole 35 and the tenth fixing hole 73 on the small cross beam piece 3 are just aligned, two bolts are screwed up and down, so that the installation of one side of the truss can be completed, the installation of the other side of the truss is completed by repeatedly connecting the first connecting sleeve core assembly 7 of the other side of the truss with the other main truss beam, and the connection of the main truss beam piece 1 and the small cross beam piece 3 can be completed. The structure after connection is shown in fig. 12.
(2) The large cross beam piece 2 and the longitudinal beam 4 are connected by a second connecting sleeve core assembly 8; firstly, connecting a second connecting sleeve assembly 8 on a large beam piece 2, and paying attention to the fact that a first beam 22 positioned above one large beam piece 2 can be connected with two second steel pipes 82, holes of a sixth fixing hole 28 and a twelfth fixing hole 84 of the first beam piece and the second beam piece are aligned and centered, and a left hole and a right hole are in a straight line and then connected through a left screw and a right screw; next, the longitudinal beam 4 is connected thereto, and the eleventh fixing hole 41 and the thirteenth fixing hole 83 are passed through by screws and tightened. The connection mode of the longitudinal beam 4 on the other side is the same as that of the longitudinal beam 4 on the other side, so that the connection of the large cross beam piece 2 and the longitudinal beam 4 can be completed, and the structure after the connection is shown in fig. 13.
(3) The longitudinal beams 4 of the small cross beam piece 3 are connected by adopting a second connecting sleeve component 8, the second connecting sleeve component 8 is connected on the small cross beam piece 3 at first, the second cross beam 31 positioned above one small cross beam piece 3 can be connected with two second steel pipes 82, the eighth fixing hole 34 and the twelfth fixing hole 84 need to be aligned and centered with holes, the left hole and the right hole are respectively positioned in a straight line, and then the left hole and the right hole are connected by using a left screw and a right screw; next, the longitudinal beam 4 is connected thereto, and the eleventh fixing hole 41 and the thirteenth fixing hole 83 are passed through by screws and tightened. The connection mode of the longitudinal beam 4 on the other side is the same as that of the small transverse beam piece 3, so that the connection of the longitudinal beam 4 and the small transverse beam piece can be completed, and the structure after the connection is shown in fig. 14.
(4) The main truss beam piece 1 and the large beam piece 2 are connected by a node connecting mechanism 6; in the middle, firstly, two main truss beam pieces 1 and one large beam piece 2 are taken, a connecting member comprises two lower node plates 61, two upper node plates 62 and 31 sets of screws (comprising matched bolts, nuts, gaskets and spring pieces), a first fixing hole 15 of the main truss beam piece 1 is aligned with a bolt hole of the lower node plate 61, a second fixing hole 16 of the main truss beam piece 1 is aligned with a bolt hole of the upper node plate 62, a fifth fixing hole 26 of the large beam piece 2 is aligned with a bolt hole of the lower node plate 61, a fourth fixing hole 27 of the large beam piece 2 is aligned with a bolt hole of the upper node plate 62, the two lower node plates 61 are used for clamping the lower parts of the main truss beam piece 1 and the large beam piece 2, the two upper node plates 62 are used for clamping the upper parts of the main truss beam piece 1 and the large beam piece 2, one-side splicing of the truss can be completed, and the splicing mode of the other side is as above; the truss assembly of the middle part can be completed (see fig. 15). At the end part, firstly taking a main truss girder piece 1 and a large crossbeam piece 2, wherein the connecting component comprises two lower node plates 61, two upper node plates 62 and 18 sets of screws (comprising matched bolts, nuts, gaskets and spring pieces), the first fixing hole 15 of the main truss girder piece 1 is aligned with the bolt hole of the lower node plate 61, the second fixing hole 16 of the main truss girder piece 1 is aligned with the bolt hole of the upper node plate 62, the fifth fixing hole 26 of the large crossbeam piece 2 is aligned with the bolt hole of the lower node plate 61, the fourth fixing hole 27 of the large crossbeam piece 2 is aligned with the bolt hole of the upper node plate 62, the lower node plates 61 are used for clamping the lower parts of the main truss girder piece 1 and the large crossbeam piece 2, the upper parts of the main truss girder piece 1 and the large crossbeam piece 2 are clamped by the two upper node plates 62, so that the truss side splicing can be completed, and the splicing mode of the other side is as above; the truss assembly of the two end parts can be completed, and the structure after connection is shown in fig. 16.
(5) The prestressed cable (including the anchor plate 51, the anchorage 52 and the steel strand 53) penetrates into the prestressed cable-penetrating hole 25 drilled in advance on the large cross beam piece 2, the left steel strand 53 and the right steel strand 53 are respectively subjected to prestressed tensioning, the integral stress on the bridge body is completed, and the structure after connection is shown in fig. 17.
(6) The bridge truss is assembled, as shown in fig. 18, a glass bridge deck 9 is paved to form a whole bridge, the bridge deck adopts an aluminum alloy structural rod piece, the connecting mode adopted by the truss hides the excessive bulges on the outside due to a large number of welding or node plate connection, so that the bridge deck is flat, toughened glass mounting glue is directly extruded on an upper cross beam and a longitudinal beam 4 of the bridge, then frosted toughened glass is paved on the bridge deck, a certain interval is reserved between the bridge deck glass, and a cushioning adhesive tape is also extruded between the toughened glass; because the aluminum alloy bridge is light in weight, strong in integrity and high in rigidity, the aluminum alloy bridge can be simply erected and can be continuously erected, and refer to the attached drawings 19 and 20.
Compared with the prior art, the invention has the advantages that:
1. the passenger footbridge is an assembled aluminum alloy bridge, and aluminum alloy beam piece units, related connecting structures, a glass bridge deck 9 and the like can be processed and finished in a factory, so that a series of problems of field processing are reduced, the construction is convenient and fast, and the modularized assembling and forming are realized.
2. The invention adopts the aluminum alloy material, and the aluminum alloy material has a series of advantages of light weight, good durability, high specific strength, convenient construction and hoisting, corrosion resistance, rust resistance, environmental protection, high material utilization rate and the like; in the construction process of the urban pedestrian overpass, the aluminum alloy pedestrian overpass has great utilization prospect.
3. The invention adopts various connection modes, the main nodes are connected by the gusset plates, the integral stability of the bridge can be ensured, and the bolted connection mode of the gusset plates avoids the problem of the strength degradation of the aluminum material at the welding point in the welding process. The cross-shaped nodes or T-shaped nodes can be firmly connected by using few bolts by adopting a curtain wall-imitating connecting sleeve core connecting mode at the cross beam position and the longitudinal beam position 4 with low stress, so that the node rigidity is improved, and unnecessary punching and bolt waste are reduced.
4. The bridge structure with the stress of the aluminum alloy truss and the prestressed steel strands 53 belongs to the first example, and the proper tension of the steel strands 53 helps to resist the tension of the lower chord 12 of the bridge on one hand and tension the bridge on the other hand, so that the rigidity of the bridge is improved, the problems of insufficient rigidity of the aluminum alloy bridge and slight shaking of the bridge body are solved, and the passing comfort of the pedestrian bridge is improved.
5. The aluminum alloy bridge body bridge floor is regular, need not do other processings again and can lay, and glass bridge floor 9 adopts dull polish toughened glass, and specification customization can be unified, and the bridge floor is paved simply, and glass bridge floor 9 is lighter relatively, and the wholeness aesthetic property is good.
The bridge adopts the toughened glass bridge deck 9, the structure is the guardrail, the appearance is simple and attractive after the bridge is formed, the structural stability is high, the construction period is short, the total construction cost of a single bridge is low, the maintenance cost is low, and the popularization is facilitated.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. The assembled aluminum alloy prestressed truss bridge is characterized by comprising two groups of main truss beam piece (1) assemblies, a plurality of large beam pieces (2), a plurality of small beam pieces (3), a plurality of longitudinal beams (4), a plurality of node connecting mechanisms (6) and a prestressed inhaul cable assembly (5), wherein the two groups of main truss beam piece (1) assemblies, the plurality of large beam pieces (2), the plurality of small beam pieces (3) and the plurality of longitudinal beams (4) are made of aluminum alloy materials, the two groups of main truss beam piece (1) assemblies are arranged in parallel at intervals, and the plurality of large beam pieces (2), the plurality of small beam pieces (3) and the plurality of longitudinal beams (4) are arranged between the two groups of main truss beam piece (1) assemblies;
the large cross beam pieces (2) are uniformly arranged at intervals, two side edges of the large cross beam pieces are fixedly connected with the two groups of main truss beam piece (1) assemblies through the node connecting mechanisms (6), and the large cross beam pieces (2) are arranged between two ends of the two groups of main truss beam piece (1) assemblies;
the small cross beam pieces (3) are arranged between every two adjacent large cross beam pieces (2), and two side edges of each small cross beam piece (3) are fixedly connected with two groups of main truss beam piece (1) assemblies through first connecting sleeve core assemblies (7); the large cross beam piece (2) is fixedly connected with the adjacent small cross beam piece (3) through the longitudinal beam (4), and two ends of the longitudinal beam (4) are fixedly connected with the large cross beam piece (2) and the small cross beam piece (3) through second connecting sleeve assemblies (8) respectively;
two of the two ends of the main truss beam piece (1) assemblies are far away from the large cross beam piece (2), and the prestressed inhaul cable assembly (5) is arranged on one surface of the two ends of the main truss beam piece (1) assemblies.
2. The fabricated aluminum alloy prestressed truss bridge as claimed in claim 1, wherein the main truss girder segment (1) assembly comprises a plurality of main truss girder segments (1) connected end to end in sequence and located on the same plane, the large girder segments (2) are fixedly connected between the main truss girder segments (1) at two ends of two groups of main truss girder segment (1) assemblies through the node connecting mechanism (6), one large girder segment (2) is arranged between two adjacent main truss girder segments (1) of one group of main truss girder segment (1) assembly, one side of the large girder segment (2) is arranged between two main truss girder segments (1) of one group of main truss girder segment (1) assembly and is fixedly connected with two main truss girder segments (1) through the node connecting mechanism (6), the other side edge of the large cross beam piece (2) is located on the other group of two main truss beam pieces (1) in the main truss beam piece assembly, the main truss beam pieces (1) are arranged between the main truss beam pieces (1) and are respectively fixedly connected with the two main truss beam pieces (1) through the node connecting mechanism (6), and the small cross beam piece (3) is fixedly connected with the main truss beam pieces (1) in the main truss beam piece assembly through the first connecting sleeve core assembly (7).
3. The assembled aluminum alloy prestressed truss bridge of claim 2, wherein the main truss girder segment (1) comprises an upper chord member (11), a lower chord member (12), a first straight web member (13) and diagonal web members (14), the upper chord member (11) and the lower chord member (12) are horizontally arranged, the upper chord member (11) is arranged vertically above the lower chord member (12), the first straight web member (13) is vertically arranged between the upper chord member (11) and the lower chord member (12), the top end of the first straight web member (13) is fixedly connected with the middle part of the upper chord member (11), the bottom end of the first straight web member (13) is fixedly connected with the middle part of the lower chord member (12), the diagonal web members (14) are arranged on two sides of the first straight web member (13), and the top ends of the two diagonal web members (14) are fixedly connected with the middle part of the upper chord member (11), the bottom ends of the two inclined web members (14) are respectively fixedly connected with the two ends of the lower chord member (12); be equipped with on the both ends of lower chord (12) and be used for through node coupling mechanism (6) with the bottom fixed connection's of the side of big beam piece (2) first fixed orifices (15), the both ends of going up chord (11) are equipped with and are used for passing through node coupling mechanism (6) with the top fixed connection second fixed orifices (16) of the side of big beam piece (2), the lower extreme of first straight-time web member (13) is equipped with and is used for passing through first connecting sleeve core subassembly (7) with little beam piece (3) fixed connection's third fixed orifices (17).
4. An assembled aluminum alloy pre-stressed truss bridge as defined in any one of claims 1 to 3, it is characterized in that the large beam piece (2) comprises two second straight web members (21) which are vertically arranged at intervals, two horizontal first beams (22) which are vertically arranged at intervals are arranged between the two second straight web members (21), a first vertical beam (24) which is vertically arranged is arranged between the two first beams (22), two ends of the first vertical beam (24) are respectively fixedly connected with the middle parts of the two first cross beams (22), first oblique cross beams (23) are arranged on two sides of the first vertical beam (24), the top ends of the two first oblique cross beams (23) are fixedly connected with two ends of the first cross beam (22) located above respectively, and the bottom ends of the two first oblique cross beams (23) are fixedly connected with the middle part of the first cross beam (22) located below respectively; two the top and bottom both ends of the straight web member of second (21) all are equipped with and are used for passing through node coupling mechanism (6) are connected fourth fixed orifices (27), two of main truss girder piece (1) subassembly the bottom of the straight web member of second (21) still is equipped with and is used for connecting prestressing force cable penetrating hole (25) of prestressing force cable subassembly (5) and be used for passing through node coupling mechanism (6) are connected fifth fixed orifices (26) of main truss girder piece (1) subassembly are located the top the middle part of first crossbeam (22) is equipped with and is used for passing through second coupling sleeve subassembly (8) fixed connection sixth fixed orifices (28) of longeron (4).
5. The fabricated aluminum alloy prestressed truss bridge as claimed in any one of claims 1 to 3, wherein the small beam piece (3) comprises two horizontal second beams (31) arranged at an interval from top to bottom, a vertically arranged second vertical beam (33) is arranged between the two second beams (31), both ends of the top and bottom of the second vertical beam (33) are respectively fixedly connected with the middle parts of the two second beams (31), both sides of the second vertical beam (33) are respectively provided with a second oblique beam (32), the top ends of the two second oblique beams (32) are respectively fixedly connected with both ends of the second beam (31) located above, and the bottom ends of the two second oblique beams (32) are respectively fixedly connected with the middle part of the second beam (31) located below; two the both ends of second crossbeam (31) all are equipped with and are used for passing through first connecting sleeve core subassembly (7) with main truss roof beam piece (1) subassembly fixed connection's seventh fixed orifices (35), are located the top the middle part of second crossbeam (31) is equipped with and is used for passing through second connecting sleeve core subassembly (8) with longeron (4) fixed connection's eighth fixed orifices (34).
6. The assembled aluminum alloy prestressed truss bridge of claim 5, wherein the two second beams (31) are square pipes, the first connecting bushing assembly (7) comprises a first fixed steel plate (74) and two first steel pipes (72) respectively inserted into the ends of the two second beams (31), the two first steel pipes (72) are arranged in parallel, and one end of each first steel pipe is fixedly connected with one surface of the first fixed steel plate (74), the first fixed steel plate (74) is provided with a plurality of ninth fixing holes (71) for fixedly connecting the main truss girder piece (1) assembly through screw assemblies, the two first steel pipes (72) are provided with tenth fixing holes (73), and the tenth fixing holes (73) are fixedly connected with the seventh fixing holes (35) through screw assemblies.
7. The assembled aluminum alloy prestressed truss bridge of any one of claims 1-3, wherein the prestressed guy cable assembly (5) comprises an anchor plate (51), an anchor (52) and a steel strand (53), one end of the steel strand (53) is fixedly connected with the large cross beam piece (2) through the anchor (52), and the anchor plate (51) is locked and attached to the large cross beam piece (2) through the anchor (52).
8. The fabricated aluminum alloy prestressed truss bridge as defined in any one of claims 1-3, wherein said node connecting mechanism (6) comprises a node plate, said node plate is provided with a plurality of mounting holes for said screw assembly to pass through, said node plate is fixedly connected with said main truss beam piece (1) assembly and said large beam piece (2) through the screw assembly.
9. An assembled aluminum alloy prestressed truss bridge as defined in any one of claims 1-3, wherein said longitudinal beams (4) are aluminum alloy square pipes, and both ends of said longitudinal beams (4) are provided with eleventh fixing holes (41) for fixedly connecting with said second connecting sleeve assembly (8).
10. The fabricated aluminum alloy prestressed truss bridge as claimed in claim 9, wherein the second connecting sleeve assembly (8) comprises a second fixing steel plate (81) and a second steel pipe (82) inserted into the end of the longitudinal beam (4), one end of the second steel pipe (82) is fixedly connected with one surface of the second fixing steel plate (81), a twelfth fixing hole (84) for fixedly connecting with the large beam piece (2) or the small beam piece (3) through a screw assembly is arranged on the second fixing steel plate (81), a thirteenth fixing hole (83) is arranged on the second steel pipe (82), and the thirteenth fixing hole (83) is fixedly connected with the eleventh fixing hole (41) through a screw assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010355496.XA CN111501521A (en) | 2020-04-29 | 2020-04-29 | Assembled aluminum alloy prestress truss bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010355496.XA CN111501521A (en) | 2020-04-29 | 2020-04-29 | Assembled aluminum alloy prestress truss bridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111501521A true CN111501521A (en) | 2020-08-07 |
Family
ID=71868430
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010355496.XA Pending CN111501521A (en) | 2020-04-29 | 2020-04-29 | Assembled aluminum alloy prestress truss bridge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111501521A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111945545A (en) * | 2020-08-12 | 2020-11-17 | 董礼 | Bridge facility that modularization was assembled |
| KR102452970B1 (en) * | 2021-11-18 | 2022-10-07 | 김의헌 | Truss structure in which tendon is arranged in inside and the multipurpose modular truss bridge including the same |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4282978A (en) * | 1980-01-28 | 1981-08-11 | Antonio Zambon | Bridge crane for the emplacement of elongate prefabricated members of structures spanning a multiplicity of spaced-apart supports |
| SU1216273A1 (en) * | 1984-09-19 | 1986-03-07 | Сибирский Ордена Трудового Красного Знамени Автомобильно-Дорожный Институт Им.В.В.Куйбышева | Reinforcement structure for steel-ferroconcrete bridge span |
| JP2005188022A (en) * | 2003-12-24 | 2005-07-14 | Mitsubishi Heavy Ind Ltd | Earthquake-proof bridge |
| CN103981799A (en) * | 2014-05-29 | 2014-08-13 | 福州大学 | Steel tube concrete string stiffness beam and construction method thereof |
| CN203834340U (en) * | 2013-11-23 | 2014-09-17 | 上海市政工程设计研究总院（集团）有限公司 | Open type bond beam truss bridge |
| CN204530426U (en) * | 2015-04-14 | 2015-08-05 | 招商局重庆交通科研设计院有限公司 | Public rail dual-purpose pair of purlin sheet plate girder compound beam |
| CN204530425U (en) * | 2015-01-29 | 2015-08-05 | 四川路航建设工程有限责任公司 | Prestressed steel truss bridge |
| CN107059593A (en) * | 2017-04-25 | 2017-08-18 | 桑大勇 | A kind of interior suspension cable compound section bridge and its construction method |
| CN108004906A (en) * | 2017-12-30 | 2018-05-08 | 贵阳铝镁设计研究院有限公司 | A kind of cross aluminum alloy pedestrian bridge |
-
2020
- 2020-04-29 CN CN202010355496.XA patent/CN111501521A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4282978A (en) * | 1980-01-28 | 1981-08-11 | Antonio Zambon | Bridge crane for the emplacement of elongate prefabricated members of structures spanning a multiplicity of spaced-apart supports |
| SU1216273A1 (en) * | 1984-09-19 | 1986-03-07 | Сибирский Ордена Трудового Красного Знамени Автомобильно-Дорожный Институт Им.В.В.Куйбышева | Reinforcement structure for steel-ferroconcrete bridge span |
| JP2005188022A (en) * | 2003-12-24 | 2005-07-14 | Mitsubishi Heavy Ind Ltd | Earthquake-proof bridge |
| CN203834340U (en) * | 2013-11-23 | 2014-09-17 | 上海市政工程设计研究总院（集团）有限公司 | Open type bond beam truss bridge |
| CN103981799A (en) * | 2014-05-29 | 2014-08-13 | 福州大学 | Steel tube concrete string stiffness beam and construction method thereof |
| CN204530425U (en) * | 2015-01-29 | 2015-08-05 | 四川路航建设工程有限责任公司 | Prestressed steel truss bridge |
| CN204530426U (en) * | 2015-04-14 | 2015-08-05 | 招商局重庆交通科研设计院有限公司 | Public rail dual-purpose pair of purlin sheet plate girder compound beam |
| CN107059593A (en) * | 2017-04-25 | 2017-08-18 | 桑大勇 | A kind of interior suspension cable compound section bridge and its construction method |
| CN108004906A (en) * | 2017-12-30 | 2018-05-08 | 贵阳铝镁设计研究院有限公司 | A kind of cross aluminum alloy pedestrian bridge |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111945545A (en) * | 2020-08-12 | 2020-11-17 | 董礼 | Bridge facility that modularization was assembled |
| KR102452970B1 (en) * | 2021-11-18 | 2022-10-07 | 김의헌 | Truss structure in which tendon is arranged in inside and the multipurpose modular truss bridge including the same |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108086127B (en) | Assembled aluminum alloy emergency bridge | |
| CN108193607B (en) | Fabricated prestressed truss for reinforcement and construction method thereof | |
| CN201826251U (en) | Quickly-assembled sectional type composite material truss bridge | |
| CN111501521A (en) | Assembled aluminum alloy prestress truss bridge | |
| CN110630014A (en) | Detachable beam-string type temporary supporting structure for floor bearing plate | |
| CN1249305C (en) | Lattice panel structures | |
| CN110748063B (en) | Assembled steel bar truss floor support plate with support | |
| CN114016379B (en) | Assembled emergency combined bridge | |
| CN104775572A (en) | Pre-stressed precast canopy plate for railway platform | |
| CN110284589B (en) | Hub type precast concrete beam column assembly type self-resetting system and construction method | |
| CN217027740U (en) | Quick-mounting low-level prestress rigid frame beam | |
| CN216740025U (en) | High-stability portal steel frame | |
| CN203144882U (en) | Assembly type composite material metal truss bridge | |
| CN215758853U (en) | Large-span assembly type cable truss structure for covering channel | |
| CN216141987U (en) | Multi-span counterweight type cable truss structure for covering channel | |
| CN212103625U (en) | Detachable beam type bridge girder structure | |
| CN210658671U (en) | Hub type precast concrete beam column assembly type self-resetting system | |
| CN114250909A (en) | Quick-mounting low-level prestressed rigid frame beam | |
| CN209722687U (en) | A kind of cable-stayed bridge concrete pylon anchor structure | |
| CN220413980U (en) | Push construction double-purpose prestressing force holds formula Bei Leigang landing stage down | |
| CN218815194U (en) | Assembled light-duty bearing structure | |
| CN218667155U (en) | Supporting platform structure | |
| CN216765545U (en) | Bridge plate cable structure | |
| CN219280447U (en) | Flat cable bridge with hollowed bridge deck | |
| CN211922991U (en) | Laminated wood latticed shell structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200807 |
|
| RJ01 | Rejection of invention patent application after publication |