CN112095436A

CN112095436A - High-efficiency fast-assembly pedestrian bridge

Info

Publication number: CN112095436A
Application number: CN202011121847.7A
Authority: CN
Inventors: 杜柏松; 罗玲; 吴国栋; 张锡祥
Original assignee: Chongqing Jiaotong University
Current assignee: Chongqing Jiaotong University
Priority date: 2020-10-19
Filing date: 2020-10-19
Publication date: 2020-12-18

Abstract

The invention provides an efficient and fast-spliced pedestrian bridge, and relates to the technical field of pedestrian bridges. The high-efficiency quick-assembly pedestrian bridge comprises a cross beam, a longitudinal beam, a bridge deck and a fixing strip; a transverse and longitudinal beam connecting plate used for being connected with the cross beam is fixedly arranged on the longitudinal beam and is connected with the cross beam through a threaded piece; the fixing strip presses the bridge deck plate on the cross beam and the longitudinal beam, the two sides of the longitudinal beam are provided with the plug sockets, and the fixing strip is provided with the plug connectors matched with the plug sockets. The technical effect of high construction speed is achieved.

Description

High-efficiency fast-assembly pedestrian bridge

Technical Field

The invention relates to the technical field of footbridge, in particular to an efficient and quick-splicing footbridge.

Background

The pedestrian bridge is generally built in a section with large traffic flow and dense pedestrians, or on intersections, squares and railways. The pedestrian bridge only allows pedestrians to pass through, and is used for avoiding conflict when traffic flow and pedestrian flow planes are intersected, ensuring safe crossing of people, improving the speed of the vehicle and reducing traffic accidents.

At present, the I-steel pedestrian bridge usually adopts a form mainly comprising longitudinal beams, transverse beams, channel steel and anti-corrosion wood plates. The longitudinal beam and the transverse beam form an integral beam type structure through welding, the channel steel is welded on the beam type structure, and the anti-corrosion wood plate is fixed on the longitudinal beam and the transverse beam through bolts. However, the main body frame is heavy, the transportation is difficult, and the construction site needs to be welded, so that the construction period on the site is long, and the construction speed is slow.

Therefore, it is an important technical problem to be solved by those skilled in the art to provide an efficient and fast-spliced pedestrian bridge with a high construction speed.

Disclosure of Invention

The invention aims to provide an efficient and fast-spliced pedestrian bridge to solve the technical problem of low construction speed in the prior art.

In a first aspect, an embodiment of the invention provides an efficient and fast-spliced pedestrian bridge, which comprises a cross beam, a longitudinal beam, a bridge deck and a fixing strip;

a transverse and longitudinal beam connecting plate used for being connected with the cross beam is fixedly arranged on the longitudinal beam, and the transverse and longitudinal beam connecting plate is connected with the cross beam through a threaded piece;

the fixing strip presses the bridge deck plate on the cross beam and the longitudinal beam, inserting seats are arranged on two sides of the longitudinal beam, and inserting pieces matched with the inserting seats are arranged on the fixing strip.

With reference to the first aspect, an embodiment of the present invention provides a possible implementation manner of the first aspect, wherein the cross beam is made of T-shaped steel, and the longitudinal beam is made of i-shaped steel.

With reference to the first aspect, an embodiment of the present invention provides a possible implementation manner of the first aspect, wherein reinforcing ribs are disposed on two sides of the longitudinal beam, and the reinforcing ribs and a top plate of the longitudinal beam form the socket.

With reference to the first aspect, an embodiment of the present invention provides a possible implementation manner of the first aspect, wherein a cross section of the fixing strip is T-shaped, and the plug connector is disposed at a bottom of the fixing strip.

With reference to the first aspect, an embodiment of the present invention provides a possible implementation manner of the first aspect, wherein the plug connector employs a gear, and the gear can be inserted into the reinforcing rib.

With reference to the first aspect, an embodiment of the present invention provides a possible implementation manner of the first aspect, wherein the bridge deck is in a shape of a "convex", and the fixing strip can be embedded between two adjacent bridge decks.

With reference to the first aspect, an embodiment of the present invention provides a possible implementation manner of the first aspect, wherein the efficient quick-splicing footbridge further includes a clamping seat, the clamping seat is inserted into the reinforcing ribs on the two longitudinal beams on the outermost side, the clamping seat is provided with a slot portion for being inserted into the reinforcing ribs, and the slot portion is connected with the reinforcing ribs through a threaded part;

the bridge deck is characterized in that a socket part is further arranged on the clamping seat, and the end parts of the bridge deck and the fixing strip can be inserted into the socket part.

With reference to the first aspect, an embodiment of the present invention provides a possible implementation manner of the first aspect, wherein the efficient fast-splicing pedestrian bridge further includes a guardrail, and the clamping seat is further provided with an installation groove for installing the guardrail.

With reference to the first aspect, an embodiment of the present invention provides a possible implementation manner of the first aspect, wherein a longitudinal beam connecting plate is disposed at one end of each longitudinal beam, and the two longitudinal beams are connected through the longitudinal beam connecting plate;

the two longitudinal beam connecting plates are connected through a threaded part.

With reference to the first aspect, an embodiment of the present invention provides a possible implementation manner of the first aspect, wherein an oblong hole for connecting an abutment is formed in a bottom of the longitudinal beam.

Has the advantages that:

the invention provides an efficient fast-spliced pedestrian bridge, which comprises cross beams, longitudinal beams, bridge decks and fixing strips, wherein the cross beams are arranged on the longitudinal beams; a transverse and longitudinal beam connecting plate used for being connected with the cross beam is fixedly arranged on the longitudinal beam and is connected with the cross beam through a threaded piece; the fixing strip presses the bridge deck plate on the cross beam and the longitudinal beam, the two sides of the longitudinal beam are provided with the plug sockets, and the fixing strip is provided with the plug connectors matched with the plug sockets.

Specifically, when splicing is carried out, a worker hoists a plurality of longitudinal beams to preset positions on an abutment, then lays a bridge deck on the longitudinal beams through fixing strips, inserts a cross beam between two adjacent longitudinal beams when laying to the preset positions where cross beams need to be installed along with the laying of the bridge deck, enables the cross beam to correspond to a cross-longitudinal beam connecting plate on the longitudinal beams, and connects the longitudinal beams and the cross beams together through threaded pieces; the plug connectors on the fixing strips can be inserted into the plug sockets on the side parts of the longitudinal beams, and after the fixing strips are inserted into the plug sockets, the fixing strips can tightly press the bridge deck on the cross beams and the longitudinal beams; through such setting for the staff can make things convenient for, the equipment of quick completion people's bridge, improves construction speed.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic view of the overall structure of an efficient fast-assembly pedestrian bridge provided by an embodiment of the invention;

FIG. 2 is a schematic connection diagram of a cross beam and a longitudinal beam in the efficient fast-spliced pedestrian bridge provided by the embodiment of the invention;

FIG. 3 is an enlarged view of a portion of FIG. 2 at A;

FIG. 4 is an enlarged view of a portion of FIG. 2 at B;

FIG. 5 is an enlarged view of a portion of FIG. 2 at C;

FIG. 6 is a schematic connection diagram of a longitudinal beam, a fixing strip and a bridge deck in the efficient fast-assembly pedestrian bridge provided by the embodiment of the invention;

FIG. 7 is an oblique view of a longitudinal beam, a fixing strip and a bridge deck in the high-efficiency quick-assembly pedestrian bridge provided by the embodiment of the invention;

FIG. 8 is a schematic view of a bridge deck in the high-efficiency fast-assembly pedestrian bridge according to the embodiment of the present invention;

FIG. 9 is a schematic diagram of a first implementation of a fixing strip in an efficient fast-assembly pedestrian bridge according to an embodiment of the present invention;

FIG. 10 is a schematic diagram of a second implementation of a fixing strip in an efficient fast-assembly pedestrian bridge according to an embodiment of the present invention;

fig. 11 is a schematic diagram of a first implementation manner of a card seat in an efficient fast-assembly foot bridge according to an embodiment of the present invention;

fig. 12 is a schematic diagram of a second implementation manner of a card seat in an efficient fast-assembly foot bridge according to an embodiment of the present invention.

Icon:

100-a cross beam;

200-longitudinal beams; 201-transverse and longitudinal beam connecting plates; 202-longitudinal beam web; 203-long circular hole; 210-reinforcing ribs;

300-a bridge deck;

400-fixing strip; 410-plug connector;

500-a card holder; 510-a socket portion; 520-a socket portion; 530-mounting groove;

600-guardrail.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

The present invention will be described in further detail below with reference to specific embodiments and with reference to the attached drawings.

Referring to fig. 1 to 12, an embodiment of the present invention provides an efficient quick-splicing pedestrian bridge, including a cross beam 100, a longitudinal beam 200, a bridge deck 300, and a fixing strip 400; a transverse and longitudinal beam connecting plate 201 used for being connected with the cross beam 100 is fixedly arranged on the longitudinal beam 200, and the transverse and longitudinal beam connecting plate 201 is connected with the cross beam 100 through a threaded piece; the fixing strip 400 presses the bridge deck 300 on the cross beam 100 and the longitudinal beam 200, the two sides of the longitudinal beam 200 are provided with plug sockets, and the fixing strip 400 is provided with plug connectors 410 matched with the plug sockets.

Specifically, during splicing, a worker hoists a plurality of longitudinal beams 200 to preset positions on an abutment, then lays a bridge deck 300 on the longitudinal beams 200 through fixing strips 400, inserts a cross beam 100 between two adjacent longitudinal beams 200 along with the laying of the bridge deck 300 when the bridge deck 300 is laid to the preset position where the cross beam 100 needs to be installed, enables the cross beam 100 to correspond to a cross-longitudinal beam connecting plate 201 on the longitudinal beams 200, and connects the longitudinal beams 200 and the cross beam 100 together through threaded parts; the plug-in connectors 410 on the fixing strips 400 can be inserted into plug-in sockets on the side portions of the longitudinal beams 200, and after the fixing strips 400 are inserted into the plug-in sockets, the fixing strips 400 can press the bridge deck 300 onto the cross beams 100 and the longitudinal beams 200; through such setting for the staff can make things convenient for, the equipment of quick completion people's bridge, improves construction speed.

Specifically, after the plug-in units 410 on the fixing strip 400 are inserted into the plug sockets of the longitudinal beam 200, the top plate of the longitudinal beam 200 may limit the plug-in units 410, so that the plug-in units 410 cannot be lifted upwards, and the fixing strip 400 may press the bridge deck 300 against the longitudinal beam 200 and the cross beam 100.

When the fixing strip 400 is installed, a worker places the fixing strip 400 on the longitudinal beam 200, the fixing strip 400 is perpendicular to the longitudinal beam 200, then the worker places the fixing strip 400 close to the bridge deck 300, presses the fixing strip 400 against the bridge deck 300, and finally pushes the fixing strip 400 in the direction of the cross beam 100 of the worker, so that the plug connector 410 on the fixing strip 400 can be plugged into the plug connector seat on the longitudinal beam 200, and the fixing of the fixing strip 400 is completed.

Wherein, crossbeam 100 and longeron 200 are both linked together through the screw thread spare, and the production of crossbeam 100 and longeron 200 can be gone on in the mill, then crossbeam 100 and longeron 200 can splice through the screw thread spare on the construction site, need not to weld on the construction site, very big improvement construction speed.

It should be noted that the fixing strips 400 are disposed on both sides of the bridge deck 300 of each row, and the bridge deck 300 is fixed by the fixing strips 400.

It should be noted that the screw member may be a bolt, and those skilled in the art may select the screw member according to actual requirements.

It should also be noted that the number of the cross beams 100, the longitudinal beams 200, the bridge deck 300, and the fixing bars 400 is plural.

Referring to fig. 1 and 2, in an alternative embodiment, the cross beam 100 is made of T-shaped steel, and the longitudinal beam 200 is made of i-shaped steel.

Specifically, the cross beam 100 is made of T-shaped steel, and the longitudinal beam 200 is made of i-shaped steel, so that the bearing capacity of the pedestrian bridge is improved.

Referring to fig. 1 and 2, in an alternative of the present embodiment, reinforcing ribs 210 are provided on both sides of the longitudinal beam 200, and the reinforcing ribs 210 form sockets with the top plate of the longitudinal beam 200.

Specifically, the both sides of longeron 200 all are provided with strengthening rib 210, through setting up strengthening rib 210, improve longeron 200's stability, and strengthening rib 210 is connected with the roof of longeron 200 and can forms the plug socket, when concatenation fixed strip 400, plug connector 410 on the fixed strip 400 can be inserted on strengthening rib 210, and the roof of longeron 200 can form the restraint to plug connector 410, make fixed strip 400 can not be followed vertical direction and pulled up, thereby guarantee that the decking 300 that is pushed down by fixed strip 400 can be stable lay on crossbeam 100 and longeron 200.

The number and type of the reinforcing ribs 210 can be selected by those skilled in the art according to actual needs, and are not described herein again.

Referring to fig. 1, 6, 9 and 10, in an alternative embodiment, a fixing strip 400 is T-shaped in cross section, and a plug 410 is disposed at the bottom of the fixing strip 400.

Specifically, the cross section of the fixing bar 400 is provided in a T shape, so that the fixing bar 400 can fix the bridge deck 300 at both sides.

Referring to fig. 10, in an alternative embodiment, the plug-in unit 410 is a gear-shaped unit, and the gear-shaped unit can be inserted into the reinforcing bar 210.

Specifically, the plug-in unit 410 is provided as a gear, and the gear can be inserted into the reinforcing rib 210 when the fixing bar 400 is assembled.

Referring to fig. 8, in an alternative embodiment, the bridge deck 300 is in a "convex" shape, and the fixing bar 400 can be inserted between two adjacent bridge decks 300.

Specifically, the bridge deck 300 is set to be convex, and the bridge deck 300 can be adapted to the fixing strips 400, so that no protrusion is formed on the bridge deck 300, and a smooth road surface is provided for pedestrians.

Wherein, when the fixed strip 400 is set up on two decking 300, the fixed strip 400 can be embedded between two decking 300 to the roof of fixed strip 400 can with decking 300's sunken department adaptation, thereby makes fixed strip 400 can fix decking 300, thereby through the restriction of fixed strip 400, can avoid decking 300 to rock at will.

Referring to fig. 1, 11 and 12, in an alternative of this embodiment, the efficient quick-splicing footbridge further includes a clamping seat 500, the clamping seat 500 is inserted into the reinforcing ribs 210 on the two outermost longitudinal beams 200, a slot portion 510 for inserting the reinforcing ribs 210 is provided on the clamping seat 500, and the slot portion 510 is connected with the reinforcing ribs 210 through a threaded member; the card socket 500 is further provided with a socket part 520, and the ends of both the bridge deck 300 and the fixing bar 400 can be inserted into the socket part 520.

Specifically, after the crossbeam 100 is spliced with the longeron 200, the laying of the decking 300 is carried out, after the decking 300 is laid, assemble the cassette 500 on the longeron 200 again, the slot part 510 on the cassette 500 can be inserted on the strengthening rib 210 of establishing in the longeron 200 outside, and the staff passes through bolt reinforcement slot part 510 and strengthening rib 210, wherein when installing the cassette 500, make the socket part 520 of cassette 500 correspond with both fixed strip 400 and decking 300, after the slot part of cassette 500 is connected with the strengthening rib 210 of longeron 200, the tip of both fixed strip 400 and decking 300 can be inserted in the socket part 520 of cassette 500, thereby retrain the tip of fixed strip 400 and decking 300, avoid fixed strip 400 and decking 300 to slide at will.

Wherein, the fixed strip 400 of each row of decking 300 both sides can be set to two, two fixed strips 400 are respectively from the both ends of each row of decking 300 to the interpolation set up to longeron 200, then set up cassette 500 on outermost longeron 200 and pass through cassette 500 restraint fixed strip 400 for fixed strip 400 can be pegged graft with the plug socket of longeron 200, avoids fixed strip 400 not hard up, and then guarantees the stability of decking 300.

Referring to fig. 1, in an alternative of this embodiment, the high-efficiency quick-splicing footbridge further includes a guardrail 600, and the clamping seat 500 is further provided with a mounting groove 530 for mounting the guardrail 600.

Specifically, the clamping seat 500 further includes a mounting groove 530, and after the clamping seat 500 is fixed on the longitudinal beam 200, a worker can insert the guardrail 600 into the mounting groove 530.

Wherein, the staff can strengthen the mounting groove 530 and the guardrail 600 through the bolt, improve the stability of the guardrail 600.

Wherein, all seted up the through-hole on mounting groove 530 and the guardrail 600 both, after guardrail 600 inserts and establishes in mounting groove 530, the through-hole on mounting groove 530 and the guardrail 600 both is adjusted well, then the staff inserts the bolt to consolidate both mounting groove 530 and guardrail 600.

Referring to fig. 1, 2 and 3, in an alternative of the present embodiment, a longitudinal beam web 202 is disposed at one end of a longitudinal beam 200, and the two longitudinal beams 200 are connected by the longitudinal beam web 202; the two stringer webs 202 are connected by screws.

Specifically, when the length of the longitudinal beam 200 of the high-efficiency quick-assembly pedestrian bridge provided by the embodiment is large, the longitudinal beams 200 can be connected together, the longitudinal beam connecting plates 202 are arranged at one end or two ends of the longitudinal beam 200, two adjacent longitudinal beams 200 can be connected together through the longitudinal beam connecting plates 202, and the longitudinal beam connecting plates 202 of the two longitudinal beams 200 can be connected together through bolts.

Referring to fig. 1, 2 and 5, in an alternative of the present embodiment, a bottom of the longitudinal beam 200 is provided with an oblong hole 203 for connecting an abutment.

Specifically, the bottom of the longitudinal beam 200 is provided with an oblong hole 203, and the longitudinal beam 200 can be connected with a bolt embedded in an abutment through the oblong hole 203.

Wherein, set up longeron 200 and the bridge on pre-buried bolted connection's connecting hole and grow up round hole 203, after connecting the completion, can guarantee that longeron 200 is in permanent use, when taking place expend with heat and contract with cold according to weather temperature, longeron 200 still can with bridge on pre-buried bolted connection, can not destroy the bolt or destroy longeron 200.

In conclusion, the cross beam 100 and the longitudinal beam 200 in the high-efficiency quick-assembly pedestrian bridge provided by the embodiment are both processed in a segmented mode in a factory, and transportation is facilitated.

In addition, the deck slab 300 in the high-efficiency quick-splicing pedestrian bridge provided by the embodiment adopts a GFRP (glass fiber reinforced polymer) deck slab, which has high strength, small self weight, good durability, no less than 50 years of normal service life and can be carried by only manual work during construction.

In addition, the high-efficient fast assembly pedestrian bridge that this embodiment provided can combine together decking 300 and girder steel effectively through the setting of fixed strip 400 with cassette 500, atress jointly to reserve the mounting groove 530 that is used for installing guardrail 600 on cassette 500.

Moreover, the high-efficiency quick-assembly pedestrian bridge provided by the embodiment does not need to be welded in site construction, is connected by bolts, can be assembled and formed quickly, and improves the construction speed.

The high-efficiency quick-assembly pedestrian bridge provided by the embodiment is simple in structure and convenient to transport, all components are produced in a factory, assembly construction is carried out, any construction support does not need to be erected, direct installation is carried out on the bridge floor, welding is changed into bolting, the construction difficulty is greatly reduced, the construction period is shortened, and the construction cost is reduced.

The concatenation process of the high-efficient fast assembly foot bridge that this embodiment provided does: a worker sequentially arranges a plurality of segments of the connected single-piece longitudinal beam 200 on the ground, assembles the longitudinal beam 200 into a whole through a longitudinal beam connecting plate 202, hoists the assembled single-piece longitudinal beam to a pre-marked designed installation position on an abutment through a crane, and connects the longitudinal beam 200 with the abutment through a bolt at a long circular hole 203 of the longitudinal beam 200; then, a row of bridge decks 300 is laid, the fixing strips 400 and the clamping seats 500 are installed to fix the bridge decks 300, and the bridge decks 300 are installed in the same manner; when the cross beam 100 is installed to a place where the cross beam 100 needs to be installed, the cross beam 100 is installed, the bridge deck 300 is installed, and the guardrail 600 is installed after the bridge deck 300 of one guardrail 600 section on the bridge deck is paved. By analogy, when the bridge deck 300 is laid to the position of the cross beam 100, the cross beam 100 is preferably assembled, wherein the cross beam 100 is made of T-shaped steel, the cross beam 100 can be inserted into a clamping groove fixed on the longitudinal beam 200 from the upper part downwards after the longitudinal beam 200 is laid in place, the longitudinal beam 200 and the cross beam 100 can be easily placed in place, the longitudinal beam 200 and the cross beam 100 are connected through bolts, and the cross beam 100 and the bridge deck 300 can be simultaneously constructed from two ends of a bridge; after the bridge deck 300 is assembled, bridge deck pavement is carried out, and the bridge deck pavement adopts 1 cm-thick quartz sand.

Wherein, guardrail 600 goes on simultaneously when laying decking 300, treats that cassette 500 assembles the back that targets in place, installs corresponding guardrail 600, has like this to face frontier defense when the construction for the construction is safer.

The bridge deck 300 is not laid after the installation of the cross beam 100, but the bridge deck 300 is laid once, the cross beam is preferentially installed when the cross beam needs to be installed, namely the longitudinal beam 200 is installed, the bridge deck 300 is laid from two ends of a bridge floor, the cross beam 100 needs to be preferentially installed, otherwise, the bridge deck 300 is installed, the cross beam 100 can be more easily assembled due to the existence of the bridge deck 300, the guardrail 600 is installed when the bridge deck 300 is laid to the length of a section of the guardrail 600, and the cross beam 100 and the bridge deck 300 are installed after the guardrail 600 is installed.

It should also be pointed out that the high-efficient fast assembly pedestrian bridge that this embodiment provided is simple easily to piece together, except that the installation of large-span pedestrian bridge longeron 200, does not need any large-scale hoisting equipment, and two people of members such as crossbeam 100, decking 300 can easily be moved and install, and ordinary workman who does not know the bridge technique can be pieced together within three or five days, need not to break the traffic. For example, a single 25m long side member 200 weighs about 6.5 tons, a single cross member 100 weighs about 60kg, and a single deck plate 300 weighs about 20kg, and thus, the side member 200 can be manually transported during construction, except for a small crane. During assembly, only one 10-ton crane, 2 workers and 1 technician are needed, the time for installing and hoisting the longitudinal beam 200 is 1 day, the time for installing the bridge deck 300, the fixing strips 400, the clamping seats 500 and the cross beam 100 is 2.5 days, and the time for paving the guardrail 600 and the bridge deck is 0.5 day. And, the installation of crossbeam 100 and decking 300 can follow the both ends synchronization of people's bridge and go on, and emergency can increase personnel and drop into, compresses the construction cycle to 2 days or even shorter.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. The utility model provides a high-efficient fast pedestrian bridge of piecing together which characterized in that includes: the bridge deck comprises cross beams (100), longitudinal beams (200), bridge decks (300) and fixing strips (400);

a transverse and longitudinal beam connecting plate (201) used for being connected with the transverse beam (100) is fixedly arranged on the longitudinal beam (200), and the transverse and longitudinal beam connecting plate (201) is connected with the transverse beam (100) through a threaded piece;

the fixing strip (400) presses the bridge deck (300) on the cross beam (100) and the longitudinal beam (200), plug sockets are arranged on two sides of the longitudinal beam (200), and plug connectors (410) matched with the plug sockets are arranged on the fixing strip (400).

2. The efficient quick-assembly pedestrian bridge according to claim 1, characterized in that the cross beams (100) are made of T-shaped steel, and the longitudinal beams (200) are made of I-shaped steel.

3. The efficient quick-assembly pedestrian bridge according to claim 2, characterized in that reinforcing ribs (210) are arranged on two sides of the longitudinal beam (200), and the reinforcing ribs (210) and a top plate of the longitudinal beam (200) form the plug sockets.

4. The efficient quick-assembly pedestrian bridge according to claim 3, characterized in that the cross section of the fixing strip (400) is T-shaped, and the plug connectors (410) are arranged at the bottom of the fixing strip (400).

5. The efficient quick-assembly pedestrian bridge according to claim 4, characterized in that the plug connectors (410) are gear-shaped, and the gear-shaped can be inserted on the reinforcing ribs (210).

6. The efficient quick-assembly pedestrian bridge according to claim 4, characterized in that the bridge deck (300) is in a shape of a Chinese character 'tu', and the fixing strip (400) can be embedded between two adjacent bridge decks (300).

7. The efficient quick-assembly pedestrian bridge according to claim 6, further comprising a clamping seat (500), wherein the clamping seat (500) is inserted into the reinforcing ribs (210) on the two outermost longitudinal beams (200), the clamping seat (500) is provided with slot portions (510) for being inserted into the reinforcing ribs (210), and the slot portions (510) are connected with the reinforcing ribs (210) through screws;

the clamping seat (500) is further provided with a socket part (520), and the end parts of the bridge deck (300) and the fixing strip (400) can be inserted into the socket part (520).

8. The efficient quick-assembly pedestrian bridge according to claim 7, further comprising a guardrail (600), wherein the clamping seat (500) is further provided with a mounting groove (530) for mounting the guardrail (600).

9. The efficient quick-assembly pedestrian bridge according to any one of claims 1-8, characterized in that one end of the longitudinal beam (200) is provided with a longitudinal beam connecting plate (202), and the two longitudinal beams (200) are connected through the longitudinal beam connecting plate (202);

the two longitudinal beam connecting plates (202) are connected through a threaded piece.

10. The efficient quick-splicing footbridge according to claim 9, characterized in that the bottom of the longitudinal beam (200) is provided with a slotted hole (203) for connecting an abutment.