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KR-102961321-B1 - Lightweight pedestrian bridge with truss structure, structural safety, and drainage system

KR102961321B1KR 102961321 B1KR102961321 B1KR 102961321B1KR-102961321-B1

Abstract

The present invention relates to a lightweight pedestrian bridge of a truss structure equipped with structural safety and a drainage system, wherein the pedestrian bridge is installed as an extension on a bridge, the pedestrian bridge comprises: an upper beam extending horizontally including an anchor plate fastened to the side of the bridge; a lower beam extending horizontally including an anchor plate fastened to the side of the bridge and spaced apart from the upper beam to have a profile height; and a brace inclinedly positioned along the longitudinal direction between the upper beam and the lower beam to provide reinforcing performance. The present invention relates to a lightweight pedestrian bridge with a truss structure equipped with structural safety and a drainage system, which is provided on the upper part of an upper beam for pedestrian passage and includes a deck plate comprising a plurality of continuous deck materials, support square tubes, and filler materials, and has a drainage square tube with a water drainage hole provided on the outer side of the wooden deck near the bridge or opposite side, and a finishing square tube provided on the opposite side of the wooden deck corresponding to the drainage square tube to prevent the wooden deck from detaching, thereby resolving inconvenience for pedestrian passage with wide expandability compared to existing structures, minimizing sagging (deformation) caused by pedestrian passage, ensuring safety through effective drainage of surface water, and reducing installation and labor costs.

Inventors

  • 임철환

Assignees

  • (주)애니우드

Dates

Publication Date
20260508
Application Date
20250609

Claims (9)

  1. In a pedestrian bridge (200) that is extended and installed on a bridge (100), The above pedestrian bridge (200) is, An upper beam (220a) extending horizontally, including an anchor plate (210) fastened to the side of the above bridge (100); A lower beam (220b) extending horizontally, including an anchor plate (210) that is spaced apart from the upper beam (220a) to have a profile height and is fastened to the side of the bridge (100); A brace (240) having reinforcing performance, arranged at an angle along the longitudinal direction between the upper beam (220a) and the lower beam (220b); A top plate (230) comprising a wooden deck (232) having a plurality of continuous deck materials (231) provided on the upper part of the upper beam (220a) for pedestrian passage, supporting square tubes (233) arranged at a predetermined interval along the length direction of the upper beam (220a) to support the wooden deck (232), and a filler material (234) that seals the gaps between the deck materials (231) to prevent the penetration of road surface water and the slipping of pedestrians. A drainage square pipe (235) having a drainage hole (235a) is provided on the outer side of the wooden deck (232) near the bridge (100) or on the outer side of the pedestrian bridge, and the upper surface of the drainage square pipe (235) coincides with the upper surface of the wooden deck (232). On the opposite side of the wooden deck (232) corresponding to the drainage square pipe (235), a finishing square pipe (236) of the same size as the drainage square pipe (235) is provided, and the upper surface of the finishing square pipe (236) coincides with the upper surface of the wooden deck (232). The upper beam (220a) and lower beam (220b) are, The above brace (240) is formed as a T-shaped beam including a horizontal flange portion (221) and a vertical web portion (223) so that they can be joined together in a corresponding manner. A lightweight pedestrian bridge with a truss structure having structural safety and a drainage system, characterized in that a reinforcing rib (227) with a curved shape having a fastening hole (225) concentrically formed in the web portion (223) is further formed, and the center of the fastening hole (225) is located at the end line of the web portion (223).
  2. In claim 1, The above wooden deck (232) is constructed to have a planar slope toward the drainage square pipe (235) so that road surface water is guided toward the drainage square pipe (235) with a slope of a height difference (h) toward the finishing square pipe (236), which has a relatively higher upper surface compared to the upper surface of the drainage square pipe (235), and the drainage square pipe (235) and the finishing square pipe (236) are provided on both sides of the wooden deck (232) to prevent the wooden deck (232) from coming off, characterized by a lightweight pedestrian bridge with a truss structure having structural safety and a drainage system.
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  5. In claim 1, The above brace (240) is, A circular steel rod (241) having a predetermined length that can be adjusted in length by processing one end with a right-hand thread and the other end with a left-hand thread; The above steel rod (241) is integrally formed by including an eyebolt-shaped connecting ring (243) having a nut structure that can be fastened to correspond to a right-hand screw and a left-hand screw at both ends. A lightweight pedestrian bridge with a truss structure having structural safety and a drainage system, characterized by being fastened to the coupling ring (243) through bolt fastening in correspondence with the fastening hole (225) formed in the web portion (223).
  6. In claim 5, A lightweight pedestrian bridge with a truss structure having structural safety and a drainage system, characterized in that the bolt connecting the above-mentioned coupling ring (243) and the fastening hole (225) is a high-strength bolt (250) having a higher tensile strength than a general bolt.
  7. In claim 1, A lightweight pedestrian bridge with a truss structure having structural safety and a drainage system, characterized in that vertical drainage pipes (237) are installed at predetermined intervals at the lower part of the above drainage angle pipe (235) to discharge incoming water.
  8. In claim 1, A lightweight pedestrian bridge with a truss structure having structural safety and a drainage system, characterized in that the filler material (234) is composed of either a protruding or non-protruding type with a non-slip surface treatment.
  9. In claim 1, A lightweight pedestrian bridge with a truss structure having structural safety and a drainage system, characterized in that an L-shaped or I-shaped water barrier plate (239) is attached to the end of the upper surface of the above drainage square pipe (235).

Description

Lightweight pedestrian bridge with truss structure, structural safety, and drainage system The present invention relates to an expandable pedestrian bridge, and more specifically, to a lightweight pedestrian bridge of a truss structure equipped with structural safety and a drainage system, which includes a road surface water drainage system on the deck of a pedestrian bridge installed on an existing bridge, and includes vertically spaced beams and steel rods to provide a safe passage environment for pedestrians, resolves inconvenience for multiple pedestrians due to wide expandability compared to existing bridges, minimizes sagging (deformation) caused by pedestrian traffic, ensures safety by reducing installation load and increasing load resistance performance compared to existing bridges, and reduces installation and labor costs. Generally, a bridge refers to a structure installed across a stream, lake, river, creek, or valley to allow vehicles to travel, and it can be constructed using various methods depending on the use and characteristics of the installation site. These bridges can be equipped with sidewalks for general pedestrian traffic as well as vehicle traffic; the sidewalks on the bridges are utilized by constructing handrails along the edges while ensuring the width of the roadway is maintained. On bridges with sidewalks, if the width of the roadway is wide, construction can be carried out to separate the roadway and the sidewalk for safety; however, if the width of the roadway is insufficient, railings are installed along the edges of the roadway, which results in unclear distinction between the roadway and the sidewalk and poses a problem that may lead to safety accidents. To solve these problems, it is necessary to demolish existing bridges that lack a distinction between the roadway and the sidewalk and rebuild them, but this would result in excessive costs and time, making it inefficient. Accordingly, a method has recently been proposed to construct lightweight pedestrian bridges with truss structures equipped with structural safety and drainage systems by installing separate sidewalks on the sides of existing bridges. Patent Document 1 (KR 10-2057323 B1) relates to an expandable pedestrian bridge, wherein an asymmetrical sub-girder is used to enable selective use as an attached or installed structure, the negative moment of the sub-girder is reduced through a reinforcing member to maintain a stable connection structure, and vibration and shock can be reduced by applying a rubber coating agent to the surface of the joists. However, Patent Document 1 has the problem that even if the main girder is supported by a sub-girder, the width is too narrow for two or more pedestrians to pass through, causing inconvenience to pedestrians using the bridge, and the cantilever structure increases the risk of cracking or detachment from the bridge due to increased stress caused by the load resulting from the force acting on the end portion, and creates anxiety for pedestrians due to vertical vibrations as one moves toward the end of the deck plate. In addition, Patent Document 2 (KR 10-1083314 B1) relates to a non-slip surface for a deck and presents a configuration comprising a main body having connecting grooves and connecting steps formed on both sides for connecting paving blocks and an anti-slip member insertion part provided at the top, and a plate-shaped anti-slip member inserted and coupled to the anti-slip member insertion part of the main body. However, although Patent Document 2 allows for the simple and sturdy connection of paving blocks and provides an anti-slip function, it does not provide a solution related to the problem of handling surface water during rainfall. In particular, in pedestrian bridges with wooden decks, surface water may seep into the gaps between the decks, causing inconvenience to vehicles or pedestrians using the road below, and in winter, the surface water may freeze and form icicles, which can cause safety accidents. As such, existing wide-type pedestrian bridges had problems such as being narrow, making it difficult for multiple pedestrians to pass at the same time, lacking structural stability, and not having effective measures for handling surface water, which posed a risk of safety accidents. FIG. 1 is a front view showing a lightweight pedestrian bridge with a truss structure equipped with structural safety and a drainage system according to the present invention. FIGS. 2a and 2b are perspective views showing a lightweight pedestrian bridge with a truss structure having structural safety and a drainage system according to the present invention. FIG. 3 is a cross-sectional view showing the combined structure of upper and lower beams and braces of a lightweight pedestrian bridge with a truss structure equipped with structural safety and a drainage system according to the present invention. FIG. 4 is a cross-sectional view showing a road surface drainage system of a