Suspension bridge main tower structure integrating bridge and travel

Abstract

The invention relates to the technical field of suspension bridges, and particularly discloses a bridge-travel integrated suspension bridge main tower structure which comprises a tower bottom foundation, tower columns are arranged on the tower bottom foundation and comprise first supporting columns and second supporting columns, and cross beams with hollow box-shaped sections are arranged between the first supporting columns and the second supporting columns. The cross beam comprises an upper cross beam and a lower cross beam, a vertical shaft is formed in the top surface of the upper cross beam, the vertical shaft is communicated with a hollow box-shaped cavity in the upper cross beam, an inlet channel penetrating through the first supporting column is formed in the first supporting column, and the inlet channel is communicated with the hollow box-shaped cavity in the upper cross beam; the inlet channel is communicated with the vertical shaft through a hollow box-shaped hollow structure in the upper cross beam, and the technical problem that in the prior art, a cable bent tower structure of a high suspension bridge only considers the supporting function of the cable bent tower structure serving as a supporting structure, and the height and space of the cable bent tower structure are not used for developing high-altitude tourism resources of the cable bent tower structure is solved.

Description

Technical Field

[0001] The invention relates to the field of suspension bridges, and in particular to a bridge-trail integrated suspension bridge main tower structure. Background Art

[0002] A suspension bridge is a bridge that uses suspended cables as the main load-bearing member. The load-bearing method is to use cables to pull up the weight of the bridge. From the perspective of force, the cables are subjected to axial tension to resist external loads. Therefore, the strength of the cable steel can be fully utilized. The cables are composed of multiple high-strength steel wires with extremely high tensile strength. They can withstand huge tensile forces, which enables suspension bridges to span long distances. Therefore, suspension bridges occupy an important position in modern bridge engineering with their unique structure and advantages. In order to suspend the cables, cable towers are set at both ends of the bridge. In traditional technology, the main function of the cable tower is to support the main cable of the suspension bridge and transfer the tension in the main cable to the foundation. Since suspension bridges have the characteristics of large spans and simple structures, they are the best choice of bridge structure in mountainous and canyon areas. Secondly, mountainous and canyon areas have rich natural scenery resources, and the suspension bridges built in mountainous and canyon areas are often super projects, which are also rare tourism resources. Bridge construction not only solves the traffic problems in mountainous and canyon areas, but also creates conditions for the development of tourism resources. It can be said that the combination of bridge super projects and natural scenery is a two-way empowerment of two tourism resources. How to make good use of bridge structures to develop tourism projects to attract tourists is of great significance to the development of tourism resources, and it can also reduce the damage to natural scenery. Suspension bridges are mainly composed of main towers, bridge decks, anchors and other parts. The main tower is usually the tallest building in mountainous and canyon areas, providing a unique perspective for appreciating natural scenery. Therefore, developing tourism projects around the main tower structure is conducive to attracting traffic. If only the traffic function of the bridge is considered, the characteristic resources of its high bridge culture will be wasted.

[0003] In the prior art, most cable towers have dull structures and boring shapes; they only consider their supporting role as a supporting structure, but do not utilize the high-altitude tourism resources of the cable towers, or only set up sightseeing lanes under the bridge body, but the sightseeing lanes under the bridge body are not high enough compared to the cable towers, and do not fully reflect the high bridge culture. The prior art lacks a cable tower structure that utilizes the height and space of the cable tower to develop high-altitude tourism resources. Summary of the invention

[0004] The purpose of the present invention is to provide a main tower structure of a suspension bridge integrating bridge and tourism, so as to solve the technical problem that the tower structure of the high suspension bridge in the prior art mentioned above only considers its supporting role as a supporting structure, but does not utilize its height and space to develop its high-altitude tourism resources.

[0005] In order to solve the above problems, the technical solution adopted by the present invention is as follows: it includes a tower bottom foundation, the tower bottom foundation is provided with a tower column, the tower column includes a first pillar and a second pillar, a cross beam with a hollow box-shaped cross section is provided between the first pillar and the second pillar, the cross beam includes an upper cross beam and a lower cross beam, a vertical shaft is opened on the top surface of the upper cross beam, the vertical shaft is connected with the hollow box-shaped hollow inside the upper cross beam, and the first pillar is provided with an entrance passage that penetrates from the outside through the first pillar and connects the hollow inside the upper cross beam.

[0006] The beneficial effects of this embodiment are:

[0007] 1. In the prior art, the tower structure of the suspension tower usually only considers its supporting role as a supporting structure, and the high-altitude tourism resources of the tower are not utilized. However, the present application utilizes the box beam structure of the upper crossbeam, arranges a passage inside it, utilizes the passage to reach the top surface of the upper crossbeam, and arranges a leisure building on the top surface of the upper crossbeam of the tower. The high-altitude tourism resources of the tower are fully developed by utilizing the passage and the leisure building, so that the tower is not only a supporting component of the suspension bridge. After being put into use, it forms a high-altitude tourism resource, such as being built into tourist facilities such as high-altitude hotels, high-altitude water bars, and high-altitude viewing platforms, which greatly increases the economic value of its later investment. Compared with the prior art, the tower structure of the present application can generate greater economic value after being put into use.

[0008] 2. If you want to use the high altitude at the top of the tower as a tourist resource and set up a leisure building on the top surface of the upper beam of the suspension bridge tower, the biggest problem is how to enter the leisure building: if passengers want to reach the top of the tower from the bottom of the tower, they need to use lifting equipment, such as elevators, etc., but the construction of high-altitude elevators requires a supporting structure. Obviously, you can use the tower column as the supporting structure of the elevator to build an attached elevator, but the suspension tower is a door frame structure. In order to be more stable, its tower column is tilted inward, making the front and rear surfaces of the tower column inclined, while the elevator should be vertically upward. The projections of the two do not overlap, and there is a misalignment when attaching, so it cannot be built; and the inner side between the two tower columns, although its projection is vertically upward, it is tilted inward, and when attached, it will squeeze the space of the elevator, making the elevator also tilted inward, and there are upper and lower beams, so it cannot be used; the outer side of the tower column becomes the best choice. However, when the elevator is built on the outer side of the tower column, the core problem of how to enter the top surface of the upper beam from the outer side of the tower column arises. In the prior art, in order to protect the main body of the building, an attachment structure is usually built around the tower column to form a cantilevered attachment channel. However, since the cable tower is too high, the externally attached channel is affected by horizontal winds, and its construction cost is too high. The present application directly uses the hollow structure in the upper beam to set up the channel, and uses the upper beam to protect the channel, so that the channel is not affected by horizontal winds. Therefore, its construction cost is lower and it is safer.

[0009] Furthermore, a protective steel ring surrounding the entrance channel is provided on the first column. The protective steel ring surrounds the entrance channel and forms a frame after pouring, so as to transfer the concrete load above the entrance channel to the bottom of the entrance channel and protect the entrance channel.

[0010] Furthermore, the upper end of the protective steel bar ring is a semicircular upper arch structure, and the lower end is a semicircular reverse arch structure. The arch structure can transfer the load to both ends of the arch very well. Therefore, the arch structure is set at the upper end of the entrance channel, so that the entrance channel is subjected to very little load from the upper concrete. Compared with other arches, the semicircular arch structure can change the load transfer direction from downward and to both ends to vertically downward, so it will not generate horizontal force on the first pillar in the horizontal direction. The reverse arch structure at the lower end can evenly distribute the loads at both ends to the first pillar to avoid uneven load distribution.

[0011] Furthermore, a fixed frame beam is provided between the protective steel bar ring and the entrance passage, and the entrance passage and the first pillar are further reinforced by the fixed frame beam.

[0012] Furthermore, a steel beam connection point is provided on the upper crossbeam, and the steel beam connection point is connected to a building column of the leisure building, and a building floating board is provided above the building column. The steel beam connection point can facilitate the later re-planning and layout according to the design of the water bar, restaurant and other buildings.

[0013] Furthermore, the building floating board is a concave arc surface structure, which can reduce the wind resistance of the leisure building and improve the effect of resisting horizontal wind resistance.

[0014] Furthermore, the building floating board is provided with a plurality of protrusions, and a plurality of wind-resistant clips are provided between the protrusions.

[0015] Furthermore, the wind-resistant clips are arc-shaped structures that fit the building floating panels and are arranged in groups. The wind-resistant clips on the same axis form a group, and several groups are arranged. Each group of wind-resistant clips forms an inverted arch structure that presses against the building floating panels.

[0016] Furthermore, a step structure having a diameter greater than that of the upper crossbeam is provided at the connection between the upper crossbeam and the tower column. The step structure can strengthen the first pillar for setting the entrance passage, and also use its design to reflect the layered beauty.

[0017] Furthermore, the step structure is provided with three layers, and the thickness thereof gradually increases toward the center of the beam. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the present invention,

[0019] Figure 2 It is a partial structural schematic diagram of the present invention,

[0020] Figure 3 This is a schematic diagram of the structure of the inlet channel during casting of the present invention.

[0021] Figure 4 It is a cross-sectional view of the inlet passage of the present invention. DETAILED DESCRIPTION

[0022] The following is further described in detail through specific implementation methods:

[0023] The figure marks in the drawings of the specification include: tower base 1, first pillar 21, second pillar 22, lower beam 31, upper beam 32, step structure 33, entrance passage 41, fixed frame beam 411, protective steel bar ring 412, shaft 42, leisure building 5, column 51, steel beam connection point 511, building floating board 52, wind-resistant protrusion 521, and wind-resistant clamp 522.

[0024] Implementation example Figure 1-2 As shown:

[0025] A main tower structure of a suspension bridge integrating bridge and travel includes a tower bottom foundation 1, which is divided into a cap part and a pile foundation part, both of which are reinforced concrete structures. The cap is used to transfer the load of the cable tower to the pile foundation, and then the pile foundation is used to transfer the weight of the cable tower to the underground rock layer. Therefore, its structure is more stable. In this embodiment, the main tower is a pile group foundation of 24 piles, with a pile foundation diameter of 3.8m, a maximum pile length of 68m, an average pile length of 55m, and the cap is cast with C45 concrete.

[0026] A tower column is provided on the tower base 1, and the tower column includes a first pillar 21 and a second pillar 22. The first pillar 21 and the second pillar 22 are inward-inclined structures. The structures of the first pillar 21 and the second pillar 22 are exactly the same. Both are ordinary reinforced concrete structures, so the tower column is used to describe them uniformly. The tower column is divided into two sections, an upper tower column and a lower tower column. The height of the upper tower column is 3-4 times the height of the lower tower column. In this embodiment, the lower tower column is 46.5m high, the upper tower column is 157.5m high, and the total height of the tower column is 204m. The tower column adopts a box-shaped section. From high altitude to the ground, the longitudinal bridge direction of the upper tower column is a variable-width section, and the transverse bridge is an equal-width section upward. In this embodiment, the longitudinal bridge width of the upper tower column gradually changes from 9m at high altitude to 10.8m and then to 12.3m at the bottom of the tower; the transverse bridge width is 7.5m. The transverse bridge and longitudinal bridge directions of the lower tower column are both variable-width sections, and the width gradually changes from 7.5m to 8.75m.

[0027] A crossbeam is provided between the first support 21 and the second support 22, and the crossbeam includes an upper crossbeam 32 and a lower crossbeam 31, and the cross sections of both of them are hollow box-shaped, so there is a hollow structure inside. In this embodiment, the height of the upper crossbeam 32 is 7.5m and the width is 5m; the height of the lower crossbeam 31 is 10m and the width is 10.1m.

[0028] The top surface of the upper crossbeam 32 is provided with a leisure building 5, which can be later constructed into tourist facilities such as a water bar, a restaurant, and a hotel. Since the upper crossbeam 32 is provided with a hollow structure with a hollow box-shaped cross section, the hollow structure of the upper crossbeam 32 can be used as a section of the passage leading to the leisure building 5; during pouring, a vertical shaft 42 is reserved on the top surface of the upper crossbeam 32, and the vertical shaft 42 is connected to the internal hollow of the upper crossbeam 32. An entrance channel 41 is opened on the outer surface of the first pillar 21, and the entrance channel 41 horizontally penetrates the first column 21 and is connected to the hollow structure inside the upper crossbeam 32, so that one can walk into the hollow channel of the upper crossbeam 32 from the entrance channel 41 and enter the top surface of the upper crossbeam 32 through the vertical shaft.

[0029] The first column 21 is provided with a protective steel ring 412 above the entrance channel 41. The protective steel ring 412 is as shown in FIG. Figure 3 As shown, a ring is formed on the periphery of the entrance channel 41, and its structure includes two semicircular arches at the upper and lower ends and a rectangular structure in the middle. The arched structure at the upper end transfers the concrete load above the entrance channel 41 to the concrete of the rectangular structures at both ends. Its structure is a semicircular arch, so it transfers the concrete load above the entrance channel 41 vertically downward, so that it does not form pressure on the entrance channel 41, and the reverse arched semicircle at the lower end transfers the load of the rectangular structure evenly to the first pillar 21 at the lower end, so that the first pillar 21 at the lower end does not form an uneven distribution of load. Overall, after the protective steel ring 412 is poured into the concrete of the first pillar, an eggshell-like protective structure is formed on the periphery of the entrance channel 41, so that the load of the first pillar 21 does not act on the entrance channel 41, so it is more stable, and the protective steel ring 412 can evenly transfer the concrete load of the first pillar 21 above the entrance channel 42 to the bottom of the entrance channel 42, and use the reverse arched structure to make the load distribution even. A fixed frame beam 411 is also provided between the protective steel bar ring 412 and the outlet channel 41 , and the fixed frame beam 411 is a prestressed reinforced concrete structure.

[0030] A step structure 33 is provided at the connection between the upper cross beam 32 and the tower column. The step structure 33 has three layers, and the thickness thereof gradually increases toward the center of the cross beam.

[0031] When pouring the top surface of the upper crossbeam 32, it is necessary to submit the steel beam connection point 511 of the cast reinforced concrete structure protrusion, which will serve as the connection point of the building column 51 when the leisure building 5 is constructed later. The building column 51 and the steel beam connection point 511 can be formed in an integral casting form, or fixed with wind-resistant bolts. A building floating board 52 is set above the building column 51 as the roof of the leisure building 5. It adopts a concave arc structure, and its two ends are fixedly connected to the first column 21 and the second column 22. There are multiple groups of protrusions 521 on the top surface of the building floating board 52. Multiple wind-resistant clips 522 are used to tighten between adjacent protrusions and are fixed with bolts. The wind-resistant clips 522 need to fit the arc structure of the building floating board 52. Therefore, its structure is designed as an arc structure, and its curvature is consistent with that of the building floating board. Figure 2 As shown, the wind-resistant clips 522 between different protrusions need to be arranged along the same axis to form a curve that fits the building floating board 52. The wind-resistant clips 522 on the same axis are a group, and several groups are arranged. After the wind-resistant clips 522 fix the entire building floating board 52, the wind-resistant clips 522 at the outermost edge of the same group are pressed against the sides of the first tower column 21 and the second tower column 22 of the cable tower, and are fixed with high-strength bolts. Therefore, the wind-resistant clips 522 form an inverted arch structure on the top surface of the building floating board 52, which is similar to a reverse arch bridge formed between the two tower columns, pressing the building floating board downward. When encountering strong winds at high altitudes, the surface of the building floating board 52 will be subjected to greater wind pressure, and there is a risk of being lifted by the wind, but the inverted arch structure of the wind-resistant clips 522 can transfer the force generated by the roof wind pressure to the first tower column and the second tower column 22 of the cable tower, so that the wind-resistant lifting ability of the building floating board 52 is enhanced.

[0032] The above is only an embodiment of the present invention, and the common knowledge such as the known specific structure and characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several deformations and improvements can be made without departing from the structure of the present invention, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A main tower structure of a suspension bridge with bridge-trail integration, comprising a tower bottom foundation, a tower column is arranged on the tower bottom foundation, and the tower column comprises a first support column and a second support column, characterized in that: A crossbeam with a hollow box-shaped cross section is provided between the first support and the second support, and the crossbeam includes an upper crossbeam and a lower crossbeam. A vertical shaft is provided on the top surface of the upper crossbeam, and the vertical shaft is connected to the hollow box inside the upper crossbeam. The first support is provided with an entrance passage that passes through the first support and the interior of the upper crossbeam from the outside.

2. The main tower structure of the suspension bridge with bridge-trail integration according to claim 1 is characterized in that: A protective steel bar ring surrounding the entrance passage is provided on the first column.

3. The main tower structure of the suspension bridge with bridge-trail integration according to claim 2 is characterized in that: The upper end of the protective steel bar ring is a semicircular upper arch structure, and the lower end is a semicircular reverse arch structure.

4. The main tower structure of the suspension bridge with bridge-trail integration according to claim 3 is characterized in that: A fixed frame beam is provided between the protective steel bar ring and the entrance passage.

5. The main tower structure of the suspension bridge with bridge-trail integration according to claim 1 is characterized in that: A steel beam connection point is arranged on the upper cross beam, and the steel beam connection point is connected with a building column of the leisure building, and a building floating board is arranged above the building column.

6. The main tower structure of the suspension bridge with bridge-trail integration according to claim 5 is characterized in that: The building floating board is a concave curved surface structure.

7. The main tower structure of the suspension bridge with bridge-trail integration according to claim 6 is characterized by: The building floating board is provided with a plurality of protrusions, and a plurality of wind-resistant clips are provided between the protrusions.

8. The main tower structure of the suspension bridge with bridge-trail integration according to claim 7 is characterized by: The wind-resistant clips are arc-shaped structures that fit the building floating panels and are arranged in groups. The wind-resistant clips on the same axis form a group. Several groups are arranged, and each group of wind-resistant clips forms an inverted arch structure that presses against the building floating panels.

9. The main tower structure of the suspension bridge with bridge-trail integration according to claim 1 is characterized by: A step structure with a diameter larger than that of the upper cross beam is provided at the connection between the upper cross beam and the tower column.

10. The main tower structure of the suspension bridge with bridge-trail integration according to claim 9 is characterized in that: The step structure is provided with three layers, and the thickness thereof gradually increases toward the center of the crossbeam.

Images