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CN-122013653-A - Assembled air bearing floating bridge and quick construction method thereof

CN122013653ACN 122013653 ACN122013653 ACN 122013653ACN-122013653-A

Abstract

The invention relates to an assembled air bearing floating bridge and a quick construction method thereof, belonging to the technical field of bridge engineering, wherein the assembled air bearing floating bridge comprises two wharf bridge decks, a bridge frame, a cover plate, a plurality of flexible air cylinders and two air supply mechanisms, wherein the inside of the bridge frame is provided with a plurality of fixed channels which are distributed at intervals and penetrate through two ends of the bridge frame in the length direction; the cover plate is fixed at the top end of the bridge in parallel, the flexible air cylinders are respectively arranged in the fixed channels in a penetrating mode and float on the river surface of the river, high-pressure air is filled in the flexible air cylinders, air inlet and outlet holes are formed in the cylinder walls of the flexible air cylinders, and the air supply ports of the two air supply mechanisms are respectively communicated with the air inlet and outlet holes of the corresponding flexible air cylinders. According to the invention, the inside of the bridge frame is provided with the plurality of fixed channels which are distributed at intervals, and then the plurality of flexible air cylinders are arranged in the plurality of fixed channels in a penetrating way, and meanwhile, the air supply mechanism always supplies high-pressure air for the plurality of flexible air cylinders, so that the suspension capacity of the floating bridge can be ensured, the bridge body is ensured to have certain rigidity, and the bearing capacity and the deformation resistance of the floating bridge are enhanced.

Inventors

  • WANG TONGXING
  • LIU LI
  • Yuan Yingqiang
  • DAI ZEYU
  • LV YANPENG
  • Xu Shuaibo
  • SONG HONGYU

Assignees

  • 铁科院(北京)工程咨询有限公司
  • 中国铁道科学研究院集团有限公司城市轨道交通中心
  • 中国铁道科学研究院集团有限公司

Dates

Publication Date
20260512
Application Date
20260410

Claims (10)

  1. 1. An assembled air bearing floating bridge, comprising: The two wharf bridge decks (1) are respectively fixed on two sides of a river channel; the two ends of the bridge frame (2) in the length direction are respectively fixed on two wharf bridge platforms (1), and a plurality of fixed channels which are distributed at intervals in the width direction and penetrate through the two ends of the bridge frame (2) in the length direction are arranged in the bridge frame; the cover plate (3) is fixed at the top end of the bridge frame (2) in parallel; The flexible air cylinders (4) are respectively arranged in the fixed channels in a penetrating way and float on the river surface of the river, two ends of each flexible air cylinder (4) are closed ends, two closed ends of each flexible air cylinder respectively penetrate out of two ends of the corresponding fixed channel, high-pressure gas is filled in each flexible air cylinder (4), and the cylinder walls of the flexible air cylinders are respectively provided with air inlet and outlet holes; The two air supply mechanisms (5), two air supply mechanisms (5) are respectively fixed on the two wharf bridge platforms (1) and are respectively provided with a plurality of air supply ports, and the plurality of air supply ports of the two air supply mechanisms (5) are respectively communicated with the corresponding air inlet and outlet holes of the flexible air cylinders (4) so as to provide high-pressure air for the flexible air cylinders (4) and assist the bridge frame (2) to support heavy objects to pass through.
  2. 2. The assembled air bearing floating bridge according to claim 1, wherein the bridge frame (2) comprises a plurality of truss units (21), the truss units (21) are distributed in an array and detachably connected through bolts, hollow structures penetrating through two ends are arranged inside the truss units (21), and the fixed channels are of the hollow structures in the same row.
  3. 3. The assembled air bearing floating bridge according to claim 2, wherein the bridge frame (2) further comprises a plurality of supporting members (22), the plurality of supporting members (22) are of a 'man' type structure or an 'X' type structure, three supporting members (22) are in one group, and three supporting members (22) of each group are respectively fixed at the top end and two sides of the truss unit (21).
  4. 4. An assembled air bearing floating bridge according to claim 1, wherein the cover plate (3) comprises a plurality of cover single plates (31), and the plurality of cover single plates (31) are sequentially spliced and fixed at the top end of the bridge frame (2) in parallel.
  5. 5. The assembled air bearing floating bridge according to claim 1, further comprising a plurality of anchoring members (6) and a plurality of anchoring wires (7), wherein the plurality of anchoring members (6) are fixed on the two dock bridges (1) at intervals, one ends of the plurality of anchoring wires (7) are fixed on one closed ends of the plurality of flexible air cylinders (4) respectively, and the other ends of the plurality of anchoring wires are fixed on the plurality of anchoring members (6) respectively.
  6. 6. An assembled air bearing floating bridge according to claim 1, wherein a plurality of the anchor ropes (7) are made of carbon fiber material.
  7. 7. An assembled air bearing floating bridge according to claim 1, further comprising a plurality of connecting ropes (8), wherein two ends of the connecting ropes (8) are respectively fixed on the cylinder walls of two adjacent flexible air cylinders (4).
  8. 8. An assembled air bearing floating bridge according to claim 7, wherein a plurality of said connecting cables (8) are each made of carbon fiber material.
  9. 9. An assembled air bearing floating bridge according to claim 1, further comprising two guardrails (9), wherein the two guardrails (9) are distributed on both sides of the web and are fixed on both sides of the bridge (2) respectively.
  10. 10. A method for quickly constructing an assembled air bearing floating bridge, which is characterized by comprising the following specific steps of: S1, respectively building wharf bridge decks (1) on two sides of a river channel; S2, firstly, crossing the bridge frame (2) on a river channel, and then respectively fixing two ends of the bridge frame (2) on two wharf bridge platforms (1); S3, a plurality of flexible air cylinders (4) are respectively arranged in a plurality of fixed channels of the bridge frame (2) in a penetrating way; S4, parallelly fixing the cover plate (3) at the top end of the bridge frame (2); S5, a plurality of air supply ports of the two air supply mechanisms (5) quantitatively fill high-pressure air into the plurality of flexible air cylinders (4) through air inlet and air outlet ports of the plurality of flexible air cylinders (4).

Description

Assembled air bearing floating bridge and quick construction method thereof Technical Field The invention relates to the technical field of bridge engineering, in particular to an assembled air bearing floating bridge and a quick construction method thereof. Background The floating bridge is used as a temporary or semi-permanent passage crossing the water area, and has irreplaceable functions in the fields of emergency rescue, military operations, temporary traffic and the like. The traditional pontoon is mainly divided into a boat bridge (adopting a rigid pontoon unit) and a fixed pontoon bridge (such as a pontoon splicing type), and the development of the traditional pontoon bridge aims at improving bearing capacity, maneuverability and environmental adaptability. In the prior art, a floating bridge is designed to be unfolded around a rigid floating body, for example, the patent number is CN2578385Y, the patent name is an air bag floating-assisted bridge, the scheme introduces an air bag as an auxiliary buoyancy unit, but the bridge body is still of a traditional rigid frame structure, the arrangement mode of the air bag and the bridge body is relatively simple, the flexibility and stability adjustment capability of the air bag are limited when the buoyancy is quickly adjusted to cope with load change in a complex water area or the need of quick adjustment, and the emergency floating bridge based on the inflatable floating bag is further disclosed as the patent number is CN111139726A, the scheme uses a plurality of independent inflatable floating bags as main bearing units, the bridge deck is directly paved on the floating bags which are arranged side by side, the modularization and quick unfolding capability are better, but the simple stacking relation between the bridge deck and the floating bags leads the transverse rigidity and the torsion resistance of the integral structure to be weak, and particularly when the bridge body is easy to deform and lose stability when bearing asymmetric loads or transverse water flow forces. Therefore, how to design an assembled air bearing floating bridge with convenient disassembly and assembly, wide application range, good universality and strong bearing capacity is a problem to be solved by the technicians in the field. Disclosure of Invention The invention provides an assembled air bearing floating bridge, which solves the technical problems of inconvenient disassembly and assembly, narrow application range, poor universality and limited bearing capacity of the traditional floating bridge. The technical scheme includes that the assembled air bearing floating bridge comprises two wharf bridge decks, a bridge frame, a cover plate, a plurality of flexible air cylinders and two air supply mechanisms, wherein the two wharf bridge decks are respectively fixed on two banks of a river, two ends of the bridge frame in the length direction are respectively fixed on the two wharf bridge decks, a plurality of fixing channels which are distributed at intervals in the width direction and penetrate through two ends of the bridge frame in the length direction are arranged in the bridge frame, the cover plate is parallelly fixed at the top end of the bridge frame, the flexible air cylinders are respectively arranged in the fixing channels in a penetrating mode and float on the river surface of the river, two ends of the flexible air cylinders are closed ends and respectively penetrate out of two ends of the corresponding fixing channels, high-pressure air is filled in the flexible air cylinders, air inlet holes and outlet holes are respectively formed in the cylinder walls of the flexible air cylinders, the two air supply mechanisms are respectively fixed on the two wharf bridge decks, the two air supply mechanisms are respectively provided with a plurality of openings, the openings of the two air supply mechanisms are respectively communicated with the corresponding flexible air cylinders to support the high-pressure air through the bridge frame. The novel assembled air bearing floating bridge structure has the beneficial effects that the novel assembled air bearing floating bridge structure is designed, a plurality of fixed channels which are distributed at intervals are formed in the bridge frame, and then a plurality of flexible air cylinders are arranged in the fixed channels in a penetrating manner to form an embedded combination mode, and meanwhile, the air supply mechanism always supplies high-pressure air for the plurality of flexible air cylinders, so that the floating capability of the floating bridge can be ensured, the certain rigidity of the bridge body is ensured, and the bearing capacity and the deformation resistance of the floating bridge are greatly enhanced. On the basis of the technical scheme, the invention can be improved as follows. Further, the bridge comprises a plurality of truss units, the truss units are distributed in an array mode and detachably conne