CN209873543U - Foundation support of steel structure bridge - Google Patents
Foundation support of steel structure bridge Download PDFInfo
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- CN209873543U CN209873543U CN201822073461.8U CN201822073461U CN209873543U CN 209873543 U CN209873543 U CN 209873543U CN 201822073461 U CN201822073461 U CN 201822073461U CN 209873543 U CN209873543 U CN 209873543U
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- layer plate
- horizontal rods
- shaped frame
- middle layer
- fixedly connected
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Abstract
The utility model relates to a basic bracket of a steel structure bridge, which comprises a bracket body, wherein the bracket body comprises two E-shaped crossbeams which are arranged in a mirror symmetry manner, and a plurality of horizontal rods which are fixedly connected on the crossbeams are horizontally arranged between the crossbeams at equal intervals; the horizontal rods are fixedly connected to the main body plates directly positioned on the upper layer plate and the middle layer plate; the middle layer plate is provided with auxiliary supporting mechanisms right below the horizontal rods, each auxiliary supporting mechanism comprises a V-shaped frame which is hinged to the corresponding horizontal rod, one end of each V-shaped frame is arranged below the middle layer plate right facing the corresponding horizontal rod, and the other end of each V-shaped frame is arranged below the secondary beams connected with all the horizontal rods. The utility model discloses a change of structure and add of mechanism have improved the steadiness and the security of steel construction bridge floor steel sheet table, improve its holding power.
Description
Technical Field
The utility model relates to a steel structure bridge specifically indicates a foundation support of steel structure bridge.
Background
Steel structures are structures composed of steel materials and are one of the main building structure types. The structure mainly comprises beam steel, steel columns, steel trusses and other members made of section steel, steel plates and the like, and rust removing and preventing processes such as silanization, pure manganese phosphating, washing drying, galvanization and the like are adopted. The components or parts are typically joined by welds, bolts or rivets. Because of its light dead weight, and construction is simple and convenient, widely apply to fields such as large-scale factory building, venue, superelevation layer. The steel has the characteristics of high strength, light dead weight, good integral rigidity and strong deformability, so the steel is particularly suitable for building large-span, ultrahigh and overweight buildings; the material has good homogeneity and isotropy, belongs to an ideal elastomer and most conforms to the basic assumption of general engineering mechanics; the material has good plasticity and toughness, can deform greatly and can bear dynamic load well; the construction period is short; the method has high industrialization degree and can be used for professional production with high mechanization degree.
At present, a lot of road pedestrian overpasses, walking bridges and the like which are made of steel structures are mainly positioned and fixed through bridge supports, horizontal rods are arranged between cross beams on two sides of a bridge deck according to intervals, then bridge deck steel plates are laid on the horizontal rods, and the horizontal rods are fixed on the horizontal rods in a screw and welding mode. The connection, fixing and bearing of the bridge deck are completely concentrated on the beams and horizontal bars fixed around the deck steel plates, and above all, most of all the bearing force is applied to the joints of the horizontal bars and the beams. This places great demands on the rigidity and strength of the horizontal bar. Moreover, the supporting force of the middle position of the bridge deck steel plate is small relative to the periphery, the problems of high danger and high maintenance are caused when the number of the air welding points of the steel plate is too small, and the steel plate is too large and is easy to cause the hazards of sinking and the like because the middle position of the steel plate does not have enough supporting force. Consequently the utility model discloses above-mentioned technical problem is studied and is improved steel structure bridge.
SUMMERY OF THE UTILITY MODEL
To the problem that above-mentioned prior art exists, the utility model provides a steel structure bridge's foundation support can effectively solve the problem that above-mentioned prior art exists.
The technical scheme of the utility model is that:
a foundation support of a steel structure bridge comprises a support body, wherein the support body comprises two E-shaped cross beams which are arranged in a mirror symmetry mode, and a plurality of horizontal rods fixedly connected to the cross beams are horizontally arranged between the cross beams at equal intervals; the horizontal rods are fixedly connected to the main body plates directly positioned on the upper layer plate and the middle layer plate; the middle layer plate is provided with auxiliary supporting mechanisms right below the horizontal rods, each auxiliary supporting mechanism comprises a V-shaped frame which is hinged to the corresponding horizontal rod, one end of each V-shaped frame is arranged below the middle layer plate right facing the corresponding horizontal rod, and the other end of each V-shaped frame is arranged below the secondary beams connected with all the horizontal rods.
The V-shaped frames are hinged to the same cross shaft, and two ends of the cross shaft are fixedly connected to the support body respectively.
And fixing plates for fixing the transverse shafts are respectively arranged on two sides of the V-shaped frame between the middle layer plate and the lower layer plate.
The horizontal rod comprises a main supporting rod with a convex structure, auxiliary supporting strips are symmetrically and fixedly connected to two sides of the convex part of the main supporting rod, and the upper surfaces of the auxiliary supporting strips and the upper surface of the convex part of the main supporting rod are positioned on the same horizontal plane.
The utility model has the advantages that:
the utility model is hinged with the V-shaped frame under the beam supporting the horizontal rod according to the interaction, conversion and decomposition of force, and the downward gravity and the borne pressure of the horizontal rod are converted into the supporting force of the other end through the V-shaped frame to support the middle part of the horizontal rod, thereby avoiding the stress from concentrating at the two ends of the horizontal rod; the main stay bar of the convex structure and the auxiliary stay bars symmetrically fixed on two sides support the steel structure bridge deck steel plate, the stress surface of the steel structure bridge deck steel plate and the area of the fixed position are enlarged, the structure of the traditional bridge deck steel plate which is fixed on the periphery and stressed is changed, the problem that the stress is large and the supporting force is small in the middle of the steel structure bridge deck steel plate is avoided, and the supporting force, the stability and the safety of the installation of the steel structure bridge deck steel plate are improved.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is an enlarged schematic view of the V-shaped frame of the present invention.
Detailed Description
To facilitate understanding of those skilled in the art, the structure of the present invention will now be described in further detail with reference to the following examples:
referring to fig. 1-2, a foundation support of a steel structure bridge comprises a support body, wherein the support body comprises two E-shaped cross beams 1 which are arranged in a mirror symmetry manner, and a plurality of horizontal rods 2 fixedly connected to the cross beams 1 are horizontally arranged between the cross beams 1 at equal intervals; the beam 1 comprises an upper plate 11, a middle plate 12 and a lower plate 13 which are arranged in parallel and connected by a main plate 14, and the horizontal rod 2 is fixedly connected on the main plate 14 which is positioned directly on the upper plate 11 and the middle plate 12; the middle layer plate 12 is provided with auxiliary supporting mechanisms right below the horizontal rods 2, each auxiliary supporting mechanism comprises a V-shaped frame 3 which is hinged, one end of each V-shaped frame 3 is arranged below the middle layer plate 12 which is right opposite to the horizontal rods 2, and the other end of each V-shaped frame 3 is arranged below the secondary beam 4 which is connected with all the horizontal rods 2; the V-shaped frames 3 are hinged on the same transverse shaft 5, and two ends of the transverse shaft 5 are fixedly connected to the support body respectively; fixing plates 15 for fixing the transverse shafts 5 are respectively arranged on two sides of the V-shaped frame 3 between the middle layer plate 12 and the lower layer plate 13; the horizontal rod 2 comprises a main stay bar 21 with a convex structure, auxiliary stay bars 22 are symmetrically and fixedly connected to two sides of the convex part of the main stay bar 21, the upper surfaces of the auxiliary stay bars 22 and the upper surface of the convex part of the main stay bar 21 are positioned on the same horizontal plane, and the main stay bar 21 and the auxiliary stay bars 22 on the two sides are of an integral structure. The bridge deck steel plate is placed and fixed on the horizontal rods 2 and is supported and fixed through the three upper surfaces of the convex parts of the main supporting rods 21 and the auxiliary supporting rods 22.
The utility model sets the traditional beam 1 as an E-shaped structure for the structure addition and installation, carries out auxiliary support to the part stressed in the middle through the added auxiliary support mechanism, and adopts the V-shaped frame 3 which is hinged to turn one end of the V-shaped frame to the upward supporting force of the other end by the downward gravity according to the interaction, conversion and decomposition of the force, so as to support the position of the front end of the end point of the horizontal rod 2 upwards and further disperse the stress concentrated at the two ends of the horizontal rod 2; and through a plurality of auxiliary stay mechanisms to 4 effects of a secondary beam, rethread secondary beam 4 is to many horizontal poles 2 effects, also improves the steadiness of basic unit's support. And then the traditional horizontal rods 2 are set into a structure that the main supporting rods 21 of the convex-shaped structure and the auxiliary supporting rods 22 symmetrically fixed on two sides are combined to be arranged, the stressed surface and the fixed position are enlarged, the structure that the periphery of the traditional bridge deck steel plate is fixed and stressed is changed, the problems that the stress is large and the supporting force is small in the middle of the bridge deck steel plate are solved, and the supporting force, the stability and the safety of the installation of the bridge deck steel plate are improved.
The above is only the preferred embodiment of the present invention, and all the equivalent changes and modifications made within the scope of the claims of the present invention should belong to the scope of the present invention.
Claims (4)
1. The utility model provides a steel structure bridge's foundation support, includes the support body, its characterized in that: the bracket body comprises two E-shaped cross beams which are arranged in a mirror symmetry manner, and a plurality of horizontal rods which are fixedly connected to the cross beams are horizontally arranged between the cross beams at equal intervals; the horizontal rods are fixedly connected to the main body plates directly positioned on the upper layer plate and the middle layer plate; the middle layer plate is provided with auxiliary supporting mechanisms under the horizontal rods, each auxiliary supporting mechanism comprises a V-shaped frame which is hinged, one end of each V-shaped frame is arranged under the middle layer plate opposite to the horizontal rods, and the other end of each V-shaped frame is arranged under the secondary beams connected with all the horizontal rods.
2. The foundation support of a steel structure bridge of claim 1, wherein: the V-shaped frames are hinged to the same cross shaft, and two ends of the cross shaft are fixedly connected to the support body respectively.
3. The foundation support of a steel structure bridge of claim 2, wherein: and fixing plates for fixing the transverse shafts are respectively arranged on two sides of the V-shaped frame between the middle layer plate and the lower layer plate.
4. The foundation support of a steel structural bridge of claim 1 or 3, wherein: the horizontal rod comprises a main supporting rod with a convex structure, auxiliary supporting strips are symmetrically and fixedly connected to two sides of the convex part of the main supporting rod, and the upper surfaces of the auxiliary supporting strips and the upper surface of the convex part of the main supporting rod are positioned on the same horizontal plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822073461.8U CN209873543U (en) | 2018-12-11 | 2018-12-11 | Foundation support of steel structure bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822073461.8U CN209873543U (en) | 2018-12-11 | 2018-12-11 | Foundation support of steel structure bridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209873543U true CN209873543U (en) | 2019-12-31 |
Family
ID=68946431
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822073461.8U Active CN209873543U (en) | 2018-12-11 | 2018-12-11 | Foundation support of steel structure bridge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209873543U (en) |
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2018
- 2018-12-11 CN CN201822073461.8U patent/CN209873543U/en active Active
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