CN215518321U - Bamboo arch bridge arch foot and arch base embedding structure - Google Patents
Bamboo arch bridge arch foot and arch base embedding structure Download PDFInfo
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- CN215518321U CN215518321U CN202121457208.8U CN202121457208U CN215518321U CN 215518321 U CN215518321 U CN 215518321U CN 202121457208 U CN202121457208 U CN 202121457208U CN 215518321 U CN215518321 U CN 215518321U
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Abstract
The utility model discloses a bamboo arch bridge arch springing and arch abutment embedding structure, which comprises an arch abutment and an arch springing, wherein an arch springing connecting mechanism is embedded in the arch abutment, and the embedding angle of the arch springing connecting mechanism corresponds to the orientation of the arch springing; the arch springing connecting mechanism comprises a bottom plate, an arch springing connecting seat is fixedly arranged in the middle of the top surface of the bottom plate, the arch springing connecting seat is a hollow rectangular structure formed by splicing four steel plates perpendicular to the bottom plate, an opening of the hollow rectangular structure is formed in the surface of an arch support, the size of the hollow rectangular structure is matched with the size of an arch springing, and the arch springing is inserted into the hollow rectangular structure of the arch springing connecting seat. The bamboo arch bridge arch foot and the abutment are connected firmly, the problem of difficulty in connection of the bamboo arch bridge arch foot and the reinforced concrete arch foot is solved, and the thrust generated by the bamboo arch bridge arch foot when an arch rib is pressed is favorably transmitted to the arch foot and the abutment.
Description
Technical Field
The utility model relates to the technical field of bridge engineering, in particular to a bamboo arch bridge arch foot and arch support embedded structure.
Background
Most of the materials adopted by the existing bridges are reinforced concrete and steel, and in consideration of regionality, ecology and characteristic features, the bridges mainly dominated by human behaviors are made of wood and bamboo (such as remote mountainous areas and scenic areas), the wood and bamboo are ecological natural materials which are easy to obtain nearby materials, the materials are good in environmental protection in the whole life cycle, and the wood and bamboo bridges have more humanity features and regional features. Compared with wood, bamboo has the advantages of short growth period, tensile strength, elasticity and toughness, but the characteristics of hollow bamboo section and uneven diameter enable the connection mode to have greater difficulty and be difficult to utilize on the structural level. Therefore, the bamboo needs to be processed into the heavy bamboo which is a new bamboo material formed by reorganizing and strengthening the bamboo, namely, the bamboo strips or bamboo strips (raw bamboo) are rolled and loosened, and then are glued, assembled along the grain and pressed into a section bar, and the section bar has the advantages of small density, high strength, good toughness, good earthquake resistance and the like.
A bamboo arch bridge is composed of a bridge span structure and a lower part structure. The bamboo arch bridge has a bridge span structure comprising an arch and an arch-on building, wherein the arch is composed of a main arch and arch ribs positioned at two sides of the main arch, and the main arch or the arch ribs are respectively composed of a plurality of mutually connected arch rings and arch feet positioned at two ends of the arch rings. The lower structure of the bamboo arch bridge comprises an abutment which is formed by pouring a stone concrete foundation, a stone concrete abutment body and a reinforced concrete arch base from bottom to top in sequence. When the bamboo guardrail is installed, the arch ribs are connected with arch seats on the abutment through arch feet at two ends, after the arch ribs are installed, the main arch is installed between the two arch ribs, the tie beams between the ribs are installed and fixed between the main arch and the arch ribs, the bamboo plates are laid on the arch, the arch ribs are fixedly installed with a plurality of bamboo stand columns, and the bamboo guardrails are installed between the adjacent stand columns. Although the heavy bamboo has the advantages of small density, good toughness, good anti-seismic performance and the like, the connection between the arch ribs and the abutment of the bamboo arch bridge is a problem to be solved, on one hand, the bearing pressure of the bridge deck is finally transmitted to the arch ribs and then transmitted to the abutments at two ends by the arch ribs, and therefore the connection relationship between the arch ribs and the abutment is very important. On the other hand, the arch support and the arch springing can not be integrally cast and molded through reinforced concrete like a reinforced concrete bridge, so that the arch support and the arch springing keep good stability, and the transmission of the thrust can be better realized. Just because the bamboo bridge can not pour the shaping through concrete an organic whole, the arch springing at arch rib both ends is the stress concentration point, and the connected mode is handled not well, can make the arch springing become hidden danger place, not only influences power transmission, influences bridge structure safety when serious.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects of the prior art, the technical problems to be solved by the utility model are as follows: how to provide a simple structure, bamboo matter arched bridge hunch foot and hunch seat built-in structure who connects firmly, more do benefit to thrust transfer with hunch seat.
In order to solve the technical problems, the utility model adopts the following technical scheme:
a bamboo arch bridge arch foot and arch base embedding structure comprises an arch base and an arch foot, wherein an arch foot connecting mechanism is embedded in the arch base, and the embedding angle of the arch foot connecting mechanism corresponds to the orientation of the arch foot; the arch springing connecting mechanism comprises a bottom plate, an arch springing connecting seat is fixedly arranged in the middle of the top surface of the bottom plate, the arch springing connecting seat is a hollow rectangular structure formed by splicing four steel plates perpendicular to the bottom plate, an opening of the hollow rectangular structure is formed in the surface of an arch support, the size of the hollow rectangular structure is matched with the size of an arch springing, and the arch springing is inserted into the hollow rectangular structure of the arch springing connecting seat.
Further, the even fixedly connected with many reinforcing bars of bottom plate bottom surface left and right symmetry interval, every reinforcing bar is perpendicular with the bottom plate, every reinforcing bar and the crossing fixed connection of the pre-buried vertical reinforcement in the hunch seat, every reinforcing bar and the crossing fixed connection of the pre-buried horizontal reinforcement in the hunch seat.
Furthermore, the left and right sides of the bottom surface of the bottom plate are bent towards each other to form a hook part, and the hook part is used for increasing the adhesive force of the steel bars in the concrete.
Furthermore, the reinforcing steel bars on the left side and the right side of the bottom surface of the bottom plate are respectively and uniformly provided with a plurality of lacing wires at intervals, wherein each lacing wire is parallel to the bottom surface of the bottom plate and is fixed with the reinforcing steel bars on the two sides in a binding or welding mode.
Furthermore, the upper end of the inner wall of the arch foot connecting seat is provided with a fillet.
Furthermore, epoxy resin is filled in a gap between the arch springing connecting seat and the arch springing.
In conclusion, the beneficial effects of the utility model are as follows:
1. the arch foot connecting mechanism and the arch support are integrally poured and fixed, and the arch foot and the arch support are fixed in a splicing mode, so that the arch foot and the arch support are stably connected, and the problem of difficulty in connection of the arch foot of the bamboo arch bridge and the reinforced concrete arch support is solved. Meanwhile, when the arch rib is pressed, the thrust generated to the arch foot is better transmitted to the arch base and the abutment.
2. The arch springing connecting seat is used as a protective cover for connecting the arch springing and the arch springing, so that the arch springing is prevented from being damped, the deformation of the arch springing can be restrained, and the problem of damp deformation is further solved.
3. A plurality of tie bars are uniformly fixed at intervals on each side of the reinforcing steel bar of the bottom plate to form a whole, so that the deformation of the reinforcing steel bar is effectively restrained, and the rigidity and the stability of the reinforcing steel bar are increased.
Drawings
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail with reference to the accompanying drawings, in which:
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a cross-sectional view taken at "A-A" in FIG. 1;
FIG. 3 is a schematic structural view of the arch springing connecting mechanism of the present invention;
fig. 4 is a side view of fig. 3.
In the figure: the arch springing comprises an arch springing 1, an arch support 2, an arch springing connecting mechanism 3, a tie bar 4, a steel bar 5, an arch springing connecting seat 31, a bottom plate 32 and a hook part 51.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1, 2 and 3, the bamboo arch bridge arch springing and arch abutment embedding structure in the present embodiment includes an arch abutment 2 and an arch springing 1, an arch springing connecting mechanism 3 is embedded in the arch abutment 2, and an embedded angle of the arch springing connecting mechanism 3 corresponds to an orientation of the arch springing 1; the arch springing connecting mechanism 3 comprises a bottom plate 32, an arch springing connecting seat 31 is fixedly arranged in the middle of the top surface of the bottom plate 32, the arch springing connecting seat 31 is a hollow rectangular structure formed by splicing four steel plates perpendicular to the bottom plate, an opening of the hollow rectangular structure is formed in the surface of the arch springing, the size of the hollow rectangular structure is matched with that of an arch springing 1, and the arch springing 1 is inserted into the hollow rectangular structure of the arch springing connecting seat 31.
In this scheme, pour fixedly through with hunch foot coupling mechanism 3 and hunch seat 2 an organic whole to as the tie point of hunch foot 1 and hunch seat 2, it is fixed with hunch foot and hunch seat through the grafting mode, make hunch foot and hunch seat be connected firmly, solved bamboo matter arch bridge hunch foot and reinforced concrete hunch seat and connected the degree of difficulty problem. Meanwhile, when the arch rib is pressed, the thrust generated to the arch springing is concentrated and transmitted to the arch base 2 and the abutment in sequence through the arch springing connecting base 31 for decomposition. The arch springing connecting seat 31 is used as a protective cover for connecting the arch springing 1 and the arch springing 2, so that the arch springing is prevented from being damped, and meanwhile, the deformation of the arch springing can be restrained, and the problem of damp deformation is further solved.
Referring to fig. 3 and 4, in this embodiment, a plurality of steel bars 5 are uniformly and fixedly connected to the bottom surface of the bottom plate 32 at left and right symmetrical intervals, each steel bar 5 is perpendicular to the bottom plate 32, the intersection of each steel bar 5 and the pre-embedded longitudinal steel bar in the arch support is fixedly connected, and the intersection of each steel bar 5 and the pre-embedded transverse steel bar in the arch support is fixedly connected.
Like this, through set up many reinforcing bars 5 in the bottom plate bottom surface to crossing fixed connection of department with the reinforcing bar and the pre-buried vertical reinforcing bar in the hunch seat 2 or horizontal reinforcing bar, increase hunch foot connecting seat 31 and 2 steadiness of hunch seat.
Referring to fig. 4, in the present embodiment, the ends of the left and right reinforcing bars 5 away from the bottom plate of the bottom plate 32 are bent towards each other to form a hook 51 for increasing the adhesion of the reinforcing bars 5 in the concrete.
Like this, through setting up 5 one ends of reinforcing bar into hook 51, when hunch foot connecting seat 31 and hunch seat 2 pass through concrete placement, increase the adhesion stress of reinforcing bar 5 in the concrete for reinforcing bar 5 can be fine anchor in the concrete, and be unlikely to under the external load effect, produce the phenomenon of sliding, thereby make hunch foot connecting seat 31 and hunch seat 2 keep better steadiness.
Referring to fig. 2, in the present embodiment, a plurality of tie bars 4 are uniformly disposed on the left and right steel bars 5 on the bottom surface of the bottom plate 32 at intervals, wherein each tie bar 4 is parallel to the bottom surface of the bottom plate 32 and is fixed to the steel bars 5 on the two sides by means of binding or welding.
Therefore, the reinforcing steel bars 5 and the tie bars 4 are fixed through binding or welding to form a whole, so that the deformation of the reinforcing steel bars is effectively restrained, and the rigidity and the stability of the reinforcing steel bars are increased. Avoid the load, probably make the reinforcing bar take place displacement and deformation, lead to reinforcing bar size off-position, influence the adhesion stress of reinforcing bar 5 and concrete.
In this embodiment, the upper end of the inner wall of the arch springing connecting seat 31 is provided with a round angle.
Thus, the opening at the upper end of the arch foot connecting seat 31 is enlarged, and the arch foot 1 is convenient to insert into the arch foot connecting seat 31.
In this embodiment, the gap between the arch springing connecting seat 31 and the arch springing 1 is filled with epoxy resin. .
Thus, when the arch springing 1 is inserted into the arch springing connecting seat 31, the insertion joint is firmly filled with the epoxy resin; meanwhile, a protective layer can be formed on the arch springing 1, and the arch springing 1 is prevented from being affected by moisture and being transferred to the arch ring.
During construction, the pouring position and the pouring height of the abutment at the two banks are determined, and the span and the radian of the bamboo arch bridge arch are determined according to the distance between the left abutment and the right abutment. The two bridge abutments are formed by pouring the stone concrete foundation, the stone concrete abutment body and the reinforced concrete arch base from bottom to top in sequence, and after the stone concrete abutment body is poured, the arch springing connecting mechanisms 3 are respectively arranged at the mounting positions and the mounting angles of the reinforced concrete arch base according to the span and the radian of the arch, and are supported and fixed. And then erecting longitudinal steel bars and transverse steel bars on the precast reinforced concrete arch center, wherein the intersection parts of the longitudinal steel bars and the transverse steel bars and the steel bars 5 on the left side and the right side of the bottom surface of the bottom plate 32 are mutually fixed in a binding or welding mode, and a plurality of tie bars 4 are uniformly fixed on each side of the steel bars 5 at intervals respectively so as to increase the rigidity and the stability of the steel bars. And then installing a pouring mold of the reinforced concrete arch support, and pouring concrete after the mold is fixed, so that the arch foot connecting mechanism 3 and the reinforced concrete arch support are poured and fixed together.
Then, the arch springing 1 at the two ends of the arch and the arch springing connecting mechanism 3 are fixed, an arch frame is erected between the left abutment and the right abutment and used for installing the arch of the bamboo arch bridge, and arch frame prepressing is carried out according to requirements. Then sufficient epoxy resin is filled in the arch rib connecting seats 31 on the left abutment and the right abutment respectively, the arch springing 1 is inserted into the arch rib connecting seats 31, at the moment, part of the epoxy resin overflows from the insertion seams of the arch springing 1 and the arch rib connecting seats 31, the arch springing 1 is supported by the arch frame, and thus the fixing of the arch springing 1 and the arch springing connecting mechanisms 3 at the two ends of the bamboo arch bridge arch is completed, namely the fixing of the arch springing 1 and the arch springing 2. And then a plurality of arch rings are sequentially connected with each other and are arranged between the two arch feet 1, so that the installation of the bamboo arch bridge arch is completed, and finally, components such as bridge decks, railings and the like are installed, so that the whole construction of the bamboo arch bridge is completed, a load test is carried out, and the completion check and acceptance is completed.
It should be further explained that, under the condition that the span of the bamboo arch bridge is not large, the enough epoxy resin can be filled in the arch foot connecting seat 31, then the arch foot 1 is inserted into the arch foot connecting seat 31, after the epoxy resin is cured, the arch foot 1 and the arch foot connecting mechanism 3 are hoisted to the left arch foot and the right arch foot of the abutment together, then the longitudinal steel bars and the transverse steel bars are laid, the arch foot pouring mold is installed, and finally the concrete is poured to complete the fixation.
Finally, it is noted that the above-mentioned embodiments illustrate rather than limit the utility model, and that, while the utility model has been described with reference to preferred embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the utility model as defined by the appended claims.
Claims (6)
1. A bamboo arch bridge arch foot and arch base embedded structure is characterized in that: the arch support comprises an arch support and arch springing, wherein an arch springing connecting mechanism is pre-embedded in the arch support, and the pre-embedded angle of the arch springing connecting mechanism corresponds to the orientation of the arch springing; the arch springing connecting mechanism comprises a bottom plate, an arch springing connecting seat is fixedly arranged in the middle of the top surface of the bottom plate, the arch springing connecting seat is a hollow rectangular structure formed by splicing four steel plates perpendicular to the bottom plate, an opening of the hollow rectangular structure is formed in the surface of an arch support, the size of the hollow rectangular structure is matched with the size of an arch springing, and the arch springing is inserted into the hollow rectangular structure of the arch springing connecting seat.
2. The bamboo arch bridge arch springing and abutment setting structure as claimed in claim 1, wherein: the even fixedly connected with many reinforcing bars of bottom plate bottom surface left and right symmetry interval, every reinforcing bar is perpendicular with the bottom plate, the crossing fixed connection of department of pre-buried longitudinal reinforcement in every reinforcing bar and the hunch seat, the crossing fixed connection of department of pre-buried transverse reinforcement in every reinforcing bar and the hunch seat.
3. A bamboo arch bridge arch springing and abutment setting structure as claimed in claim 2, wherein: and the left and right sides of the bottom surface of the bottom plate are provided with reinforcing steel bars, one ends of the reinforcing steel bars, which are far away from the bottom plate, are bent oppositely to form hook parts, and the hook parts are used for increasing the adhesive force of the reinforcing steel bars in concrete.
4. A bamboo arch bridge arch springing and abutment setting structure as claimed in claim 2 or 3, wherein: the bottom plate bottom surface left and right sides reinforcing bar is respectively the interval evenly be equipped with many lacing wires, and wherein every lacing wire parallels with the bottom plate bottom surface to it is fixed with both sides reinforcing bar through ligature or welding mode.
5. The bamboo arch bridge arch springing and abutment setting structure as claimed in claim 1, wherein: and the upper end of the inner wall of the arch foot connecting seat is provided with a fillet.
6. The bamboo arch bridge arch springing and abutment setting structure as claimed in claim 5, wherein: and epoxy resin is filled in a gap between the arch foot connecting seat and the arch foot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121457208.8U CN215518321U (en) | 2021-06-29 | 2021-06-29 | Bamboo arch bridge arch foot and arch base embedding structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121457208.8U CN215518321U (en) | 2021-06-29 | 2021-06-29 | Bamboo arch bridge arch foot and arch base embedding structure |
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| Publication Number | Publication Date |
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| CN215518321U true CN215518321U (en) | 2022-01-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202121457208.8U Active CN215518321U (en) | 2021-06-29 | 2021-06-29 | Bamboo arch bridge arch foot and arch base embedding structure |
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| CN (1) | CN215518321U (en) |
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- 2021-06-29 CN CN202121457208.8U patent/CN215518321U/en active Active
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Address after: 518000 Room 601, 6th floor, shenran building, 268 Meiao 1st Road, Futian District, Shenzhen, Guangdong Patentee after: Yunji smart Engineering Co.,Ltd. Address before: 518048 Room 601, 6 / F, shenran building, 268 Meiao 1st Road, Futian District, Shenzhen, Guangdong Patentee before: SHENZHEN EXPRESSWAY ENGINEERING CONSULTANTS CO.,LTD. |
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