JPS6412982U

JPS6412982U -

Info

Publication number: JPS6412982U
Application number: JP10428587U
Authority: JP
Priority date: 1987-07-07
Filing date: 1987-07-07
Publication date: 1989-01-24

Description

[Brief explanation of the drawing]

第１図は、本考案鋼管を成形するのに使用する
床用鋼板の一例を示すもので、そのａは平面図、
そのｂは断面図、第２図は前記鋼板を用いて形成
した本考案外面凸条付鋼管の一実施例斜視図、第
３図は前記鋼管を芯にしてコンクリート材を外周
に施した複合柱材の一実施例の断面図、第４図は
、他の実施例断面図である。１……鋼管、２……凸条、３……コンクリート
部材。 Figure 1 shows an example of a floor steel plate used to form the steel pipe of the present invention, in which a is a plan view;
Fig. 2 is a perspective view of an embodiment of the steel pipe with convex outer surfaces of the present invention formed using the steel plate, and Fig. 3 is a composite column with the steel pipe as the core and concrete material applied to the outer periphery. FIG. 4 is a cross-sectional view of one embodiment of the material, and FIG. 4 is a cross-sectional view of another embodiment. 1... Steel pipe, 2... Convex strip, 3... Concrete member.

Claims

[Claims for Utility Model Registration] (1) A steel pipe having a closed curve cross section is formed by bending a floor steel plate, and the projecting stripes provided on the surface of the steel plate are arranged on the outer peripheral surface of the steel pipe. A steel pipe with convex grooves on the outside. (2) The steel pipe with convex grooves on its outer surface as set forth in claim (1) of the utility model registration, wherein the entire outer circumferential wall is integrally lined with substantially uniform thick concrete. (3) The steel pipe with convex outer surface striations as set forth in claim (1) of the utility model registration, wherein the lining concrete outer peripheral wall has a substantially rectangular cross-sectional shape. (4) A steel pipe with convex grooves on its outer surface as set forth in claim (2) or (3) of the utility model registration claim, which is formed by integrally applying a thick concrete lining to the entire inner circumferential wall.