JPH0470314U

JPH0470314U -

Info

Publication number: JPH0470314U
Application number: JP11397990U
Authority: JP
Priority date: 1990-10-30
Filing date: 1990-10-30
Publication date: 1992-06-22
Anticipated expiration: 2005-09-13
Also published as: JPH0739927Y2

Description

[Brief explanation of the drawing]

第１図は本考案の第１実施例を示す中空合成床
版橋の横断面図、第２図は、第１図Ａ−Ａ線にお
ける断面図、第３図は、第１図Ｂ−Ｂ線における
断面図、第４図は本考案の第２実施例を示す中空
合成床版橋の横断面図、第５図は、第４図Ａ−Ａ
線における断面図、第６図は、第４図Ｂ−Ｂ線に
おける断面図、第７図は本考案の第３実施例を示
す中空合成床版橋の横断面図である。１……突起付Ｔ形鋼、１ａ……上部フランジ、
１ｂ……突起、１ｃ……ウエブ、２……底鋼板、
３……上配力鉄筋、４……下配力鉄筋、４ａ……
上方水平部、４ｂ……下方水平部、５……発泡樹
脂板、６……コンクリート、７……支持金具、８
……波形鋼板、９……空間部。 Fig. 1 is a cross-sectional view of a hollow synthetic deck bridge showing the first embodiment of the present invention, Fig. 2 is a sectional view taken along the line A-A in Fig. 1, and Fig. 3 is a cross-sectional view taken along the line A-A in Fig. 1. 4 is a cross-sectional view of a hollow synthetic deck bridge showing the second embodiment of the present invention, and FIG. 5 is a cross-sectional view taken along line A-A of the present invention.
6 is a cross-sectional view taken along the line B--B in FIG. 4, and FIG. 7 is a cross-sectional view of a hollow synthetic deck bridge according to a third embodiment of the present invention. 1... T-shaped steel with protrusion, 1a... Upper flange,
1b...protrusion, 1c...web, 2...bottom steel plate,
3...Upper distribution reinforcing bar, 4...Lower distribution reinforcement, 4a...
Upper horizontal part, 4b... Lower horizontal part, 5... Foamed resin board, 6... Concrete, 7... Supporting metal fittings, 8
... Corrugated steel plate, 9 ... Space section.

Claims

[Claims for Utility Model Registration] (1) T-beams having protrusions on the upper surface of the upper flange are arranged in parallel at required regular intervals, and a bottom steel plate is welded between the lower end surfaces of the webs of the T-beams with protrusions. Then, each upper horizontal part of the lower force distribution reinforcing bar, which is bent into a trapezoidal wave shape so as to have a height of about 1/2 to 1/3 of the web height of the T-shaped steel with protrusions, is connected to each T-shaped steel with protrusions. An upper force distribution reinforcing bar is placed perpendicularly to the upper surface of the upper flange of the section steel, and placed at a position slightly above the upper surface of the upper flange of each T-section steel with projections so as to be orthogonal to each T-section steel with projections. A hollow composite deck bridge constructed by pouring concrete from a position slightly below each lower horizontal part of the distribution reinforcing bars to a position slightly above the upper distribution reinforcing bars. (2) Claim 1, wherein the lower force reinforcing bars are bent into continuous trapezoidal waves of a required length.
Hollow synthetic slab bridge described in . (3) The hollow composite deck bridge according to claim 1, wherein the lower load reinforcing bars are bent into at least two trapezoidal wave shapes. (4) The hollow composite deck bridge according to any one of claims 1 to 3, wherein the terminal end lower horizontal portion and the starting end lower horizontal portion of each of the lower distribution reinforcing bars arranged adjacent to each other are joined by an overlap joint. (5) The hollow composite deck bridge according to any one of claims 1 to 3, wherein the upper horizontal portion of the terminal end and the upper horizontal portion of the starting end of each of the lower distribution reinforcing bars arranged adjacent to each other are joined by a lap joint.