A flexible pedestrian suspension bridge with a wooden bridge deck

Abstract

The present invention discloses a flexible pedestrian suspension bridge with a wooden bridge deck, which includes anchor piers, bridge towers, main cables, a bridge deck system, and side protection systems. Two anchor piers are relatively arranged at two bridgeheads. Two bridge towers are relatively arranged between the two anchor piers. The bridge towers are arranged close to the corresponding anchor piers and protrude from the top surface of the anchor piers. The top protruding section of the bridge tower is provided with suspension cable turning pulleys and cable turning pulleys. The suspension cable turning pulleys are above the cable turning pulleys. The two suspension cable turning pulleys are relatively arranged on the wide sides of the top protruding section. The cable turning pulleys are between the two suspension cable turning pulleys. At least three cable turning pulleys are arranged at intervals along the bridge width direction. The flexible pedestrian suspension bridge with a wooden bridge deck of the present invention, compared with the existing one that only relies on two main cables to bear the load, reduces the load borne by a single main cable, thereby reducing the anchoring requirements of the main cable, and the flexible pedestrian suspension bridge is convenient for installation and maintenance.

Description

Technical Field

[0001] The present invention relates to the technical field of pedestrian suspension bridges, and in particular, to a flexible pedestrian suspension bridge with a wooden bridge deck. Background Art

[0002] A suspension bridge is a bridge with the main cable as the main load-bearing structure. Suspension bridges can be divided into rigid suspension bridges and flexible suspension bridges. Rigid suspension bridges have a powerful stiffening girder and are mostly used for long-span bridges. Flexible suspension bridges can only be provided with a bridge deck system and are generally used for bridges mainly for pedestrians in mountainous areas, small and medium-sized rivers, etc.

[0003] Pedestrian suspension bridges in domestic scenic spots are mainly rigid suspension bridges. Rigid suspension bridges have the advantages of large overall stiffness and strong spanning ability of the bridge, but they also have the following deficiencies: The bridge towers of rigid suspension bridges are generally relatively high, the main cables need to be configured with side spans, the project cost is relatively high, the tall bridge towers look obtrusive and have an adverse impact on the natural landscape; tourists walking on rigid suspension bridges do not have a sense of sway, and the user experience is poor.

[0004] At present, a flexible suspension bridge is provided with two main cables. The stiffening girder is located below the main cables, and the load on the stiffening girder is transmitted to the main cables through suspenders. The main cables of suspension bridges are usually relatively thick, and the anchoring systems at both ends are very complex. A main cable saddle needs to be set at the position of the bridge tower, and a cable dispersion saddle needs to be set at the position of the anchor. The production and installation of the cable saddles are cumbersome and the construction is complex.

[0005] In view of this, it is necessary to propose a flexible pedestrian suspension bridge with a wooden bridge deck to solve or at least alleviate the above defects while improving the user experience. Summary of the Invention

[0006] The flexible pedestrian suspension bridge with a wooden bridge deck provided by the present invention solves the technical problem that the existing suspension bridge has a complex construction of the anchoring system at both ends of the main cable due to only two main cables bearing the load.

[0007] To achieve the above object, the technical solution adopted by the present invention is as follows:

[0008] A flexible pedestrian suspension bridge with a wooden bridge deck includes anchor piers, bridge towers, main cables, a bridge deck system, and a side protection system. The two anchor piers are relatively arranged at the two bridge ends. The two bridge towers are relatively arranged between the two anchor piers. The bridge towers are arranged close to the corresponding anchor piers and protrude above the top surface of the anchor piers. The top protruding section of the bridge tower is provided with suspension cable turning pulleys and cable turning pulleys. The suspension cable turning pulleys are above the cable turning pulleys. The two suspension cable turning pulleys are relatively arranged on the wide sides of the top protruding section. The cable turning pulleys are between the two suspension cable turning pulleys. At least three cable turning pulleys are arranged at intervals along the bridge width direction. The anchor piers are provided with suspension cable anchoring pulleys and cable anchoring pulleys. The suspension cable anchoring pulleys are above the cable anchoring pulleys. The cable anchoring pulleys and the cable turning pulleys are arranged in one-to-one correspondence. The suspension cable anchoring pulleys and the suspension cable turning pulleys are arranged in one-to-one correspondence. The main cables are arranged in one-to-one correspondence with the cable turning pulleys. The end of the main cable passes through the corresponding cable turning pulley and cable anchoring pulley and then bends and overlaps on the cable body of the main cable. The side protection system and the suspension cable anchoring pulleys are arranged in one-to-one correspondence. The side protection system is arranged on the side of the bridge deck system. The bridge deck system includes splicing wooden board units laid on the main cables along the bridge transverse direction. A plurality of splicing wooden board units are arranged at intervals along the longitudinal bridge direction. The upper end of the side protection system passes through the corresponding suspension cable anchoring pulley and is fixed at the position of the suspension cable anchoring pulley. The lower part of the side protection system extends downward and is connected to the splicing wooden board unit.

[0009] Further, the splicing wooden board unit includes square timbers, pedestrian wooden boards, U-shaped fasteners, and connecting pins. The pedestrian wooden boards are laid along the bridge transverse direction. The U-shaped fasteners pass through the pedestrian wooden boards and the corresponding main cables from the top surface of the pedestrian wooden boards and are locked by the connecting pins. The square timbers are filled between the bottom surface of the pedestrian wooden boards and the main cables. The upper surface of the U-shaped fasteners is flush with the upper surface of the pedestrian wooden boards.

[0010] Further, a plurality of U-shaped fasteners are arranged at intervals along the bridge transverse direction.

[0011] Further, the side protection system includes a rigid protection unit and a flexible protection unit. The flexible protection unit is arranged outside the rigid protection unit. A plurality of rigid protection units are arranged at intervals along the longitudinal bridge direction. The rigid protection unit includes an inverted T-shaped connecting piece, a connecting base, and a pedestrian railing column. The inverted T-shaped connecting piece is laid along the bridge transverse direction. The vertical side of the inverted T-shaped connecting piece is arranged between two adjacent pedestrian wooden boards. The horizontal side of the inverted T-shaped connecting piece is inserted into the corresponding side of the pedestrian wooden board and the square timber along the longitudinal bridge direction and is locked by a U-shaped fastener. The two bases are arranged relatively along the bridge transverse direction. The bases are arranged on the surface of the corresponding pedestrian wooden board and are welded to the vertical plate of the inverted T-shaped connecting piece. The pedestrian railing columns are arranged in one-to-one correspondence with the bases. The pedestrian railing columns are fixedly arranged on the bases in the direction perpendicular to the surface of the bottom plates.

[0012] Furthermore, the flexible protection unit includes protection suspension cables and protection sling cables. The end of the protection suspension cable passes through the corresponding suspension cable turning pulley and suspension cable anchoring pulley and then bends and overlaps on the cable body of the protection suspension cable. Multiple protection sling cables are arranged at intervals along the longitudinal direction of the bridge. The upper part of the protection sling cable is connected to the corresponding side of the protection suspension cable, and the lower part of the protection sling cable is connected to the inverted T-shaped connecting piece on the corresponding side.

[0013] Furthermore, the suspension cable turning pulley includes a suspension cable pulley frame embedded in the top protruding section of the bridge tower and a suspension cable rotating pulley rotatably arranged on the suspension cable pulley frame. The main cable turning pulley includes a cable pulley frame embedded in the top protruding section of the bridge tower and a cable rotating pulley rotatably arranged on the cable pulley frame. The number of main cables is 5 to 9.

[0014] Furthermore, the width of the pedestrian plank is 20 - 30 cm, the distance between two adjacent pedestrian planks along the longitudinal direction of the bridge is 1 - 3 cm, and the distance between two adjacent rigid protection units along the longitudinal direction of the bridge is 1 - 2 m.

[0015] Furthermore, the flexible pedestrian suspension bridge with a wooden bridge deck also includes a wind resistance device arranged corresponding to the anchor. The wind resistance device includes a wind resistance anchoring pile and a wind resistance cable arranged in one-to-one correspondence. Wind resistance anchoring piles are respectively arranged on both sides of the anchor. A wind cable anchoring pulley is arranged at the top of the wind resistance anchoring pile. The first end of the wind resistance cable is connected to the inverted T-shaped connecting piece at the end of the bridge deck system. The second end of the wind resistance cable passes through the wind cable anchoring pulley and then crosses the first end of the wind resistance cable. The second end of the wind resistance cable is connected to the inverted T-shaped connecting piece in the middle of the bridge deck system.

[0016] Furthermore, the wind cable anchoring pulley includes a wind cable wheel frame embedded in the top of the wind resistance anchoring pile and a wind cable rotating wheel rotatably arranged on the wind cable wheel frame.

[0017] Furthermore, the wind cable anchoring pulley and the cable anchoring pulley are arranged horizontally flush.

[0018] The present invention has the following beneficial effects:

[0019] The flexible pedestrian suspension bridge with a wooden bridge deck of the present invention includes anchor piers, bridge towers, main cables, a bridge deck system, and side protection systems 5. By arranging two anchor piers longitudinally opposite each other at two bridgeheads, and two bridge towers longitudinally opposite each other between the two anchor piers, the bridge towers and anchor piers are arranged in one-to-one correspondence, the anchor piers are anchored at the corresponding bridgeheads, and by arranging the bridge towers and anchor piers in one-to-one correspondence, the bridge towers are arranged close to the corresponding anchor piers, and the two anchor piers and the two bridge towers are on the same straight line, which is convenient for tensioning the main cables between the two anchor piers and bearing the bridge deck system; by arranging at least three cable turning pulleys at intervals in the bridge width direction, and splicing wooden board units are laid transversely on all the main cables, compared with the existing one that only relies on two main cables to bear the load, the load borne by a single main cable is reduced, and thus the anchoring requirements of the main cables are reduced; by providing cable turning pulleys corresponding to the main cables on the protruding sections of the top surfaces of the bridge towers, and cable anchoring pulleys corresponding to the main cables are arranged on the tops of the anchor piers, and the ends of the main cables are lapped and locked after passing around the cable turning pulleys and cable anchoring pulleys embedded in the bridge towers, which is beneficial to prevent the middle area of the bridge deck system from flowing into the water, and at the same time the pulleys are simple in structure, economical and practical, and the flexible pedestrian suspension bridge is convenient for installation and maintenance; by arranging two side protections opposite each other on both sides of the bridge deck system, while ensuring the experience of pedestrians, the safety of pedestrians is improved.

[0020] In addition to the purposes, features and advantages described above, the present invention has other purposes, features and advantages. The following will refer to the drawings to further elaborate on the present invention in detail. Brief Description of the Drawings

[0021] The drawings forming a part of this application are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention. In the drawings:

[0022] Figure 1 is the bridge type layout diagram of the flexible pedestrian suspension bridge with a wooden bridge deck according to a preferred embodiment of the present invention;

[0023] Figure 2 is Figure 1 the top view of the flexible pedestrian suspension bridge with a wooden bridge deck in;

[0024] Figure 3 is the partial plan view of the flexible pedestrian suspension bridge with a wooden bridge deck according to a preferred embodiment of the present invention;

[0025] Figure 4 is the cross-sectional view of the flexible pedestrian suspension bridge with a wooden bridge deck according to a preferred embodiment of the present invention;

[0026] Figure 5 is Figure 1 the partial structural schematic diagram of the bridge tower in;

[0027] Figure 6 is a partial sectional view of a flexible pedestrian suspension bridge with a wooden bridge deck according to a preferred embodiment of the present invention;

[0028] Figure 7 is Figure 1 a schematic structural view of the cable steering pulley in

[0029] wherein, the arrow indicates the transverse direction of the bridge.

[0030] Legend:

[0031] 100. Flexible pedestrian suspension bridge with a wooden bridge deck; 10. Anchor; 11. Suspension cable anchoring pulley; 12. Cable anchoring pulley; 20. Bridge tower; 21. Suspension cable steering pulley; 22. Cable steering pulley; 30. Main cable; 40. Bridge deck system; 41. Spliced wooden board unit; 411. Square timber; 412. Pedestrian wooden board; 413. U-shaped buckle; 414. Connecting pin; 50. Side protection system; 51. Rigid protection unit; 511. Inverted T-shaped connecting piece; 512. Connecting base; 513. Pedestrian railing column; 52. Flexible protection unit; 521. Protection suspension cable; 522. Protection sling; 60. Wind resistance device; 61. Wind resistance anchoring pile; 62. Wind resistance cable. Detailed implementation manners

[0032] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0033] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0034] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the drawings). If the specific posture changes, the directional indications will also change accordingly.

[0035] In addition, the descriptions involving "first", "second", etc. in the present invention are for descriptive purposes only, and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between various embodiments may be combined with each other, but it must be based on the fact that those skilled in the art can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0036] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 , a flexible pedestrian suspension bridge 100 with a wooden bridge deck provided in a preferred embodiment of the present invention includes anchor piers 10, bridge towers 20, main cables 30, a bridge deck system 40 and side protection systems 50. The two anchor piers 10 are relatively arranged in the longitudinal bridge direction at the two bridge ends. The two bridge towers 20 are relatively arranged in the longitudinal bridge direction between the two anchor piers 10. The bridge towers 20 and the anchor piers 10 are arranged in one-to-one correspondence. The bridge towers 20 are arranged close to the corresponding anchor piers 10. The bridge towers 20 protrude from the top surface of the anchor piers 10. A suspension cable turning pulley 21 and a cable turning pulley 22 are provided on the top protruding section of the bridge tower 20. The suspension cable turning pulley 21 is above the cable turning pulley 22. The two suspension cable turning pulleys 21 are relatively arranged on the two sides in the width direction of the top protruding section. The cable turning pulley 22 is between the two suspension cable turning pulleys 21. At least three cable turning pulleys 22 are arranged at intervals in the bridge width direction. A suspension cable anchoring pulley 11 and a cable anchoring pulley 12 are provided on the anchor pier 10. The suspension cable anchoring pulley 11 is above the cable anchoring pulley 12. The cable anchoring pulley 12 and the cable turning pulley 22 are arranged in one-to-one correspondence. The suspension cable anchoring pulley 11 and the suspension cable turning pulley 21 are arranged in one-to-one correspondence. The main cable 30 and the cable turning pulley 22 are arranged in one-to-one correspondence. The end of the main cable 30 passes through the corresponding cable turning pulley 22 and the cable anchoring pulley 12 and then bends and overlaps on the cable body of the main cable 30. The side protection system 50 and the suspension cable anchoring pulley 11 are arranged in one-to-one correspondence. The bridge deck system 40 includes splicing wooden board units 41 laid on the main cable 30 in the transverse bridge direction. A plurality of splicing wooden board units 41 are arranged at intervals in the longitudinal bridge direction. The upper end of the side protection system 50 passes through the corresponding suspension cable anchoring pulley 11 and is fixed at the position of the suspension cable anchoring pulley 11. The lower part of the side protection system 50 extends downward and is connected to the splicing wooden board unit 41.

[0037] The flexible pedestrian suspension bridge 100 with a wooden bridge deck according to the present invention includes anchor piers 10, bridge towers 20, main cables 30, a bridge deck system 40, and side protection systems 50. It adopts a structural system combining rigidity and flexibility, with rigid supports and flexible connections. The two anchor piers 10 are arranged relatively along the longitudinal bridge direction at the two bridge ends, and the two bridge towers 20 are arranged relatively along the longitudinal bridge direction between the two anchor piers 10. The bridge towers 20 and the anchor piers 10 are arranged in one-to-one correspondence, and the anchor piers 10 are anchored at the corresponding bridge ends. By arranging the bridge towers 20 and the anchor piers 10 in one-to-one correspondence, the bridge towers 20 are arranged close to the corresponding anchor piers 10, and the two anchor piers 10 and the two bridge towers 20 are on the same straight line, which is convenient for tensioning the main cable 30 between the two anchor piers 10 and bearing the bridge deck system 40; by arranging at least three cable turning pulleys 22 at intervals along the bridge width direction, the spliced wooden board units 41 are laid transversely on all the main cables 30. Compared with the existing one that only relies on two main cables to bear the load, the bearing load of a single main cable 30 is reduced, and thus the anchoring requirement of the main cable 30 is reduced; by providing cable turning pulleys 22 corresponding to the main cable 30 on the protruding section of the top surface of the bridge tower 20 and providing cable anchoring pulleys 12 corresponding to the main cable 30 at the top of the anchor pier 10, the end of the main cable 30 is bypassed around the cable turning pulley 22 and the cable anchoring pulley 12 embedded in the bridge tower 20 and then lapped and locked, which is beneficial to preventing the middle area of the bridge deck system 40 from flowing into the water. At the same time, the pulley structure is simple, economical and practical, the anchoring system at both ends of the main cable 30 is simple, and the installation and maintenance of the pedestrian suspension bridge are convenient; by arranging two side protections relatively on both sides of the bridge deck system 40, the safety of pedestrians is improved while ensuring the experience of pedestrians.

[0038] It can be understood that in the present invention, the side protection system 50 includes a corresponding flexible protection unit 52 and a rigid protection unit 51. The rigid protection unit 51 is rigidly supported on the bridge deck system 40 for pedestrians to hold, so as to provide rigid support for pedestrians to avoid falling when the vibration of the bridge deck system 40 is large; the flexible protection unit 52 is arranged outside the rigid protection unit 51 to prevent pedestrians from falling outward. Double-layer protection is carried out while setting the flexible pedestrian bridge deck system 40 to improve the user experience and ensure the safety of pedestrians. Optionally, the flexible protection unit 52 may include a flexible protection net.

[0039] Please refer to Figure 3 and Figure 4, Further, the spliced wooden board unit 41 includes square timbers 411, pedestrian wooden boards 412, U-shaped fasteners 413, and connecting pins 414. The pedestrian wooden boards 412 are laid along the transverse direction of the bridge. The U-shaped fasteners 413 pass through the pedestrian wooden boards 412 and the corresponding main cables 30 from the top surface of the pedestrian wooden boards 412 and are locked by the connecting pins 414. The square timbers 411 are filled between the bottom surface of the pedestrian wooden boards 412 and the main cables 30. The upper surface of the U-shaped fasteners 413 is flush with the upper surface of the pedestrian wooden boards 412. Optionally, the width of the pedestrian wooden boards 412 can be 20 to 30 cm, and a gap of about 1 to 3 cm is left between each board to ensure that the bridge deck system 40 fully adapts to the linear change of the main cables 30. In specific implementation, in order to ensure the firmness of the connection, square timbers 411 are placed between the U-shaped fasteners 413 and the main cables 30 to fill the gap between the U-shaped fasteners 413 and the main cables 30, and the bottom open end of the U-shaped fasteners 413 is tightened by using nuts.

[0040] Further, in order to facilitate the stable connection of the pedestrian wooden boards 412 through the protection and the U-shaped fasteners 413, a plurality of the U-shaped fasteners 413 are arranged at intervals along the transverse direction of the bridge.

[0041] Please refer to Figure 3 、 Figure 4 and Figure 6 , Further, the side protection system 50 includes a rigid protection unit 51 and a flexible protection unit 52. The flexible protection unit 52 is arranged outside the rigid protection unit 51. A plurality of the rigid protection units 51 are arranged at intervals along the longitudinal direction of the bridge. The rigid protection unit 51 includes an inverted T-shaped connecting member 511, a connecting base 512, and a pedestrian railing column 513. The inverted T-shaped connecting member 511 is laid along the transverse direction of the bridge. The vertical side of the inverted T-shaped connecting member 511 is arranged between two adjacent pedestrian wooden boards 412. The horizontal side of the inverted T-shaped connecting member 511 is inserted into the corresponding side between the pedestrian wooden boards 412 and the square timbers 411 along the longitudinal direction of the bridge and is locked by the U-shaped fasteners 413. The two bases are arranged opposite to each other along the transverse direction of the bridge. The bases are arranged on the surface of the corresponding pedestrian wooden boards 412 and are welded to the vertical plate of the inverted T-shaped connecting member 511. The pedestrian railing columns 513 are arranged in one-to-one correspondence with the bases. The pedestrian railing columns 513 are fixedly arranged on the base plate in a direction perpendicular to the surface of the base plate. Optionally, the T-shaped connecting member is spliced by two double-angled steels. The connecting base 512 uses a connecting steel plate. The pedestrian railing columns 513 use steel pipe columns. The bottom end of the steel pipe column is welded to the connecting steel plate, and the top end of the steel pipe column extends vertically upward.

[0042] Furthermore, the flexible protection unit 52 includes a protection suspension cable 521 and protection suspension ropes 522. The end of the protection suspension cable 521 passes through the corresponding suspension cable deflection pulley 21 and the suspension cable anchorage pulley 11 and then bends and laps on the cable body of the protection suspension cable. A plurality of the protection suspension ropes 522 are arranged at intervals along the longitudinal bridge direction. The upper part of the protection suspension rope 522 is connected to the protection suspension cable 521 on the corresponding side, and the lower part of the protection suspension rope 522 is connected to the inverted T-shaped connecting member 511 on the corresponding side. In the present invention, the protection suspension cable 521, the protection suspension rods, the bridge deck system 40, and the main cable 30 form a spatial system, which is beneficial to improving the stiffness of the flexible pedestrian suspension bridge 100 with a wooden bridge deck and increasing the safety factor of the flexible pedestrian suspension bridge 100 with a wooden bridge deck. Specifically, when the protection suspension cable 521 passes through the bridge tower 20, it uses pulleys for deflection and force transmission like the main cable 30. When anchoring, it bypasses the pulley embedded above the anchor block 10 and is locked with a wire clip.

[0043] Optionally, the distance between two adjacent rigid protection units 51 along the longitudinal bridge direction is 1-2 meters. The protection suspension ropes 522 are arranged at intervals of one pedestrian railing column 513, that is, a protection suspension rope 522 is arranged every 2 to 4m, ensuring pedestrian safety while saving consumables.

[0044] Furthermore, the suspension cable deflection pulley 21 includes a suspension cable pulley frame embedded in the top protruding section of the bridge tower 20 and a suspension cable rotating pulley rotatably arranged on the suspension cable pulley frame. The cable deflection pulley includes a cable pulley frame embedded in the top protruding section of the bridge tower 20 and a main cable 30 rotating pulley rotatably arranged on the cable pulley frame. The number of the main cables 30 is 5 to 9.

[0045] Furthermore, the flexible pedestrian suspension bridge 100 with a wooden bridge deck further includes a wind resistance device 60 arranged corresponding to the anchor block 10. The wind resistance device 60 includes a wind resistance anchor pile 61 and a wind resistance cable 62 arranged in one-to-one correspondence. The wind resistance anchor piles 61 are respectively arranged on both sides of the anchor block 10. A wind cable anchor pulley is arranged at the top of the wind resistance anchor pile 61. The first end of the wind resistance cable 62 is connected to the inverted T-shaped connecting piece 511 at the end of the bridge deck system 40. The second end of the wind resistance cable 62 passes through the wind cable anchor pulley and then crosses the first end of the wind resistance cable 62. The second end of the wind resistance cable 62 is connected to the inverted T-shaped connecting piece 511 in the middle of the bridge deck system 40. In the present invention, by arranging the wind resistance anchor piles 61 at the four corner positions of the bridge deck system 40, connecting the wind resistance anchor piles 61 to the bridge deck system 40 through the corresponding wind resistance cables 62, connecting the wind resistance cables 62 to the inverted T-shaped connecting pieces 511, connecting the connecting base plate to the inverted T-shaped connecting pieces 511, and fixedly arranging the pedestrian railing columns 513 on the connecting base plate, the mechanical properties and safety performance of the flexible pedestrian suspension bridge 100 with a wooden bridge deck are satisfied, ensuring that the bridge displacement under wind load meets the specification limits, improving the wind resistance stability. At the same time, the wind resistance cables 62 are arranged through the wind cable anchor pulleys, which is convenient for maintenance and installation.

[0046] Furthermore, the wind cable anchor pulley includes a wind cable wheel frame embedded at the top of the wind resistance anchor pile 61 and a wind cable rotating wheel rotatably arranged on the wind cable wheel frame.

[0047] Furthermore, the wind cable anchor pulley is arranged horizontally flush with the cable anchor pulley 12.

[0048] A specific implementation manner provided by the present invention is as follows:

[0049] A flexible pedestrian suspension bridge 100 with a wooden bridge deck is set above a specific river course. The number of main cables 30 is 5 to 9. The wind cable anchor pulley is arranged horizontally flush with the cable anchor pulley 12. The protective suspension cable 521 is arranged above the main cable 30. While improving the experience of tourists, it ensures that the bridge deck is at a certain height from the water area, preventing the water surface from flooding the bridge deck during high water. The bridge span arrangement is 8 + 80 + 8m, and the main span rise-span ratio is 1 / 40; the bridge deck width is 2.5m, and the bridge design line is located at the center line of the bridge, without setting a cross slope.

[0050] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A flexible pedestrian suspension bridge with a wooden bridge deck, characterized in that it includes anchor piers, bridge towers, main cables, a bridge deck system and side protection systems. The two anchor piers are relatively arranged at the two bridge ends. The two bridge towers are relatively arranged between the two anchor piers. The bridge towers are arranged close to the corresponding anchor piers, and the bridge towers protrude from the top surface of the anchor piers. The top protruding section of the bridge tower is provided with suspension cable turning pulleys and cable turning pulleys. The suspension cable turning pulleys are above the cable turning pulleys. The two suspension cable turning pulleys are relatively arranged on the two wide sides of the top protruding section. The cable turning pulleys are between the two suspension cable turning pulleys. At least three cable turning pulleys are arranged at intervals along the bridge width direction. The anchor piers are provided with suspension cable anchoring pulleys and cable anchoring pulleys. The suspension cable anchoring pulleys are above the cable anchoring pulleys. The cable anchoring pulleys and the cable turning pulleys are arranged in one-to-one correspondence. The suspension cable anchoring pulleys and the suspension cable turning pulleys are arranged in one-to-one correspondence. The main cables are arranged in one-to-one correspondence with the cable turning pulleys. The end of the main cable passes through the corresponding cable turning pulley and cable anchoring pulley and then bends and overlaps on the cable body of the main cable. The side protection systems and the suspension cable anchoring pulleys are arranged in one-to-one correspondence. The side protection systems are arranged on the sides of the bridge deck system. The bridge deck system includes splicing wooden board units laid on the main cables along the transverse direction of the bridge. A plurality of splicing wooden board units are arranged at intervals along the longitudinal direction of the bridge. The upper end of the side protection system passes through the corresponding suspension cable anchoring pulley and is fixed at the position of the suspension cable anchoring pulley. The lower part of the side protection system extends downward and is connected to the splicing wooden board unit. The side protection system includes a rigid protection unit and a flexible protection unit. The flexible protection unit is arranged outside the rigid protection unit. The flexible protection unit includes a protection suspension cable and protection sling ropes. The end of the protection suspension cable passes through the corresponding suspension cable turning pulley and suspension cable anchoring pulley and then bends and overlaps on the cable body of the protection suspension cable. A plurality of protection sling ropes are arranged at intervals along the longitudinal direction of the bridge. The upper part of the protection sling rope is connected to the protection suspension cable on the corresponding side. The lower part of the protection sling rope is connected to the inverted T-shaped connecting piece of the side protection system on the corresponding side.

2. The flexible pedestrian suspension bridge with a wooden bridge deck according to claim 1, characterized in that the splicing wooden board unit includes square timbers, pedestrian wooden boards, U-shaped fasteners and connecting pins. The pedestrian wooden boards are laid along the transverse direction of the bridge. The U-shaped fasteners pass through the pedestrian wooden boards and the corresponding main cables from the top surface of the pedestrian wooden boards and are locked by the connecting pins. The square timbers are filled between the bottom surface of the pedestrian wooden boards and the main cables. The upper surface of the U-shaped fasteners is flush with the upper surface of the pedestrian wooden boards.

3. The flexible pedestrian suspension bridge with a wooden bridge deck according to claim 2, characterized in that a plurality of U-shaped fasteners are arranged at intervals along the transverse direction of the bridge.

4. The flexible pedestrian suspension bridge with a wooden bridge deck according to claim 2, characterized in that A plurality of the rigid protection units are arranged at intervals along the longitudinal direction of the bridge. The rigid protection unit includes an inverted T-shaped connecting piece, a connecting base, and a pedestrian railing column. The inverted T-shaped connecting piece is laid along the transverse direction of the bridge. The vertical side of the inverted T-shaped connecting piece is arranged between two adjacent pedestrian wooden boards. The transverse edge of the inverted T-shaped connecting piece is inserted between the corresponding pedestrian wooden board and the square timber along the longitudinal direction of the bridge and locked by the U-shaped buckle. Two of the bases are arranged oppositely along the transverse direction of the bridge. The base is arranged on the surface of the corresponding pedestrian wooden board and welded to the vertical plate of the inverted T-shaped connecting piece. The pedestrian railing columns are arranged in one-to-one correspondence with the bases. The pedestrian railing columns are fixedly arranged on the base along the direction perpendicular to the surface of the base plate.

5. The flexible pedestrian suspension bridge with a wooden bridge deck according to claim 4, wherein The suspension cable turning pulley includes a suspension cable pulley frame embedded on the protruding section at the top of the bridge tower and a suspension cable rotating pulley rotatably arranged on the suspension cable pulley frame. The main cable turning pulley includes a cable pulley frame embedded on the protruding section at the top of the bridge tower and a cable rotating pulley rotatably arranged on the cable pulley frame. The number of the main cables is 5 to 9.

6. The flexible pedestrian suspension bridge with a wooden bridge deck according to claim 5, wherein The width of the pedestrian wooden board is 20 - 30 cm, and the distance between two adjacent pedestrian wooden boards along the longitudinal direction of the bridge is 1 - 3 cm. The distance between two adjacent rigid protection units along the longitudinal direction of the bridge is 1 - 2 m.

7. The flexible pedestrian suspension bridge with a wooden bridge deck according to claim 5, wherein The flexible pedestrian suspension bridge with a wooden bridge deck further includes a wind resistance device arranged corresponding to the anchor block. The wind resistance device includes a wind resistance anchor pile and a wind resistance cable arranged in one-to-one correspondence. The wind resistance anchor piles are respectively arranged on both sides of the anchor block. A wind cable anchor pulley is arranged at the top of the wind resistance anchor pile. The first end of the wind resistance cable is connected to the inverted T-shaped connecting piece at the end of the bridge deck system. The second end of the wind resistance cable passes through the wind cable anchor pulley and then crosses the first end of the wind resistance cable. The second end of the wind resistance cable is connected to the inverted T-shaped connecting piece in the middle of the bridge deck system.

8. The flexible pedestrian suspension bridge with a wooden bridge deck according to claim 7, wherein The wind cable anchor pulley includes a wind cable wheel frame embedded at the top of the wind resistance anchor pile and a wind cable rotating wheel rotatably arranged on the wind cable wheel frame.

9. The flexible pedestrian suspension bridge with a wooden bridge deck according to claim 7, wherein The wind cable anchor pulley and the cable anchor pulley are arranged horizontally flush.

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