JP3676442B2 - Filled coated steel pipe concrete structure - Google Patents

Filled coated steel pipe concrete structure Download PDF

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Publication number
JP3676442B2
JP3676442B2 JP21462695A JP21462695A JP3676442B2 JP 3676442 B2 JP3676442 B2 JP 3676442B2 JP 21462695 A JP21462695 A JP 21462695A JP 21462695 A JP21462695 A JP 21462695A JP 3676442 B2 JP3676442 B2 JP 3676442B2
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JP
Japan
Prior art keywords
concrete
steel
steel pipe
walls
filled
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
JP21462695A
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Japanese (ja)
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JPH0959933A (en
Inventor
東明 紙屋
平昌 青景
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株式会社フジタ
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Publication date
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Priority to JP21462695A priority Critical patent/JP3676442B2/en
Publication of JPH0959933A publication Critical patent/JPH0959933A/en
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Publication of JP3676442B2 publication Critical patent/JP3676442B2/en
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Expired - Fee Related legal-status Critical Current

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Description

【0001】
【発明の属する技術分野】
本発明は橋脚、煙突等塔状構造物に適用される充填被覆形鋼管コンクリート構造に係るものである。
【0002】
【従来の技術】
従来の橋脚の構造は直径32mm、あるいは51mmの主筋を150mm間隔で、ダブル配筋した鉄筋コンクリート構造で主体を構成し、また直径16〜25mmの帯鉄筋が150mm間隔で配筋されている。
一部、H鋼を鉄筋の断面に換算して鉄筋と組合せたSRC構造の橋脚がみられるが、この場合も帯筋が必要となる。
【0003】
【発明が解決しようとする課題】
前記従来構造においては、太径の主筋が150mm間隔でダブルに配筋されるため、継手の施工に多くの時間を要し、また主筋の間隔が狭いとコンクリートの施工に多大の手間を要する。また帯筋が必要であり、この帯筋の組立に多くの時間を要する。
【0004】
更に橋脚の施工において工程的に時間がかかり、特に鉄筋組立作業に工程的に多大の時間と手間を要す。
本発明は前記従来技術の有する問題点に鑑みて提案されたもので、その目的とするところは、鉄筋組立の省力化が図られ、工程が短縮化され、構造的には耐震性に優れた、四辺の側壁部により画成される中空矩形状の水平断面形状を有する塔状コンクリート構造物に適用される充填被覆形鋼管コンクリート構造を提供する点にある。
【0005】
【課題を解決するための手段】
前記の目的を達成するため、本発明に係る充填被覆形鋼管コンクリート構造は、四辺の側壁部により画成される中空矩形状の水平断面形状を有するコンクリート構造物に適用される充填被覆形鋼管コンクリート構造であって、前記四辺の側壁部の壁内に列設されて基礎部に建込まれた鉛直方向に延在する複数の鋼管と、横方向に相隣る前記鋼管どうしを接合するトラス状鋼製部材とで構成された、前記コンクリート構造物の前記四辺の側壁部を一周する補強骨組構造体を備えており、前記複数の鋼管の各々に高強度、高流動コンクリートが充填されており、前記補強骨組構造体が鉄筋コンクリート構造で被覆されることで前記四辺の側壁部が構成されている
【0006】
【発明の実施の形態】
図面は本発明の好ましい実施の形態を示すもので、この実施の形態に係るコンクリート構造物は、図1から明らかなように、四辺の側壁部により画成される中空矩形状の水平断面形状を有する。基礎部より所要位置毎に鋼管1を建て込んであり、それら複数の鋼管1 は、図1に示すように四辺の側壁部の壁内に列設されており、また図2に示すように鉛直方向に延在している。横方向に相隣る同鋼管1どうしを等辺山型鋼より構成されたトラス状鋼製部材2で互いに継接してあり、それによって、図1に示すようにコンクリート構造物の四辺の側壁部を一周する補強骨組構造体が構成されている。図中3はトラス状鋼製部材2のボルト継手を示す。次いで前記鋼管1群の周囲に鉄筋4を配筋したのち、前記鋼管1に高強度、高流動コンクリート5を充填し、前記トラス状鋼製部材2で継接された鋼管1群及び鉄筋4を囲繞する型枠を組立て被覆コンクリート6を打設する。これにより、鋼管1とトラス状鋼製部材2とで構成された補強骨組構造体が鉄筋コンクリート構造で被覆され、コンクリート構造物の四辺の側壁部が構成されている。
【0007】
なお前記鋼管1は溶接継手7を介して継接される。
【0008】
【発明の効果】
本発明に係る充填被覆形鋼管コンクリート構造によれば前記したように、基礎部に建込まれた鋼管に高強度、高流動コンクリートが充填されて、同各鋼管が鋼製部材で接続されているので、終局耐力と靱性が確保され、更にまた鋼製部材で接続された同鋼管群が鉄筋コンクリートで被覆されているので、水平剛性が確保され、振動特性が改善され、地震時の安全性が確保される。また前記コンクリート充填鋼管群によって鉄筋量が低減され、配筋作業等の省力化が図られる。
【図面の簡単な説明】
【図1】 本発明に係る充填被覆形鋼管コンクリート構造の一実施例を示す平断面図である。
【図2】 図1の矢視イ−イ図である。
【符号の説明】
1 鋼管
2 トラス状鋼製部材
3 ボルト継手
4 鉄筋
5 高強度、高流動コンクリート
6 被覆コンクリート
7 溶接継手
[0001]
BACKGROUND OF THE INVENTION
The present invention according to the load coated shaped steel concrete structure applied pier, chimney, etc. tower-like structure.
[0002]
[Prior art]
The structure of a conventional pier is mainly composed of a reinforced concrete structure in which main bars having a diameter of 32 mm or 51 mm are doubled at intervals of 150 mm, and reinforcing bars having a diameter of 16 to 25 mm are arranged at intervals of 150 mm.
In some cases, bridge piers with an SRC structure in which H steel is converted into a cross section of a reinforcing bar and combined with the reinforcing bar are seen, but in this case also a band is required.
[0003]
[Problems to be solved by the invention]
In the conventional structure, since the main reinforcing bar with a large diameter is doubled at intervals of 150 mm, it takes a lot of time for the construction of the joint, and when the distance between the main reinforcing bars is narrow, a great deal of labor is required for the construction of the concrete. In addition, a strap is required, and it takes a lot of time to assemble the strap.
[0004]
Furthermore, it takes time in the process of construction of the pier, and in particular, a great deal of time and labor is required in the process of assembling the reinforcing bars.
The present invention has been proposed in view of the above-mentioned problems of the prior art. The purpose of the present invention is to save labor in rebar assembly, shorten the process, and have excellent earthquake resistance structurally. that it provides a filling coated shaped steel concrete structure which is applied to the tower-like concrete structure having a hollow rectangular horizontal cross section defined by side wall portions of the four sides.
[0005]
[Means for Solving the Problems]
In order to achieve the above object, the filled-clad steel pipe concrete structure according to the present invention is applied to a concrete structure having a hollow rectangular horizontal cross-sectional shape defined by four side walls. A truss-like structure for joining a plurality of vertically extending steel pipes arranged in the walls of the side walls of the four sides and extending in the vertical direction, and the steel pipes adjacent to each other in the lateral direction. The steel structure is provided with a reinforcing frame structure that goes around the side walls of the four sides of the concrete structure, and each of the plurality of steel pipes is filled with high-strength, high-fluidity concrete , The side walls of the four sides are configured by covering the reinforcing frame structure with a reinforced concrete structure.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
The drawings show a preferred embodiment of the present invention . As is clear from FIG. 1, the concrete structure according to this embodiment has a hollow rectangular horizontal cross-sectional shape defined by four side walls. Have. There Nde write built steel pipe 1 for each predetermined position from the base portion, the plurality of steel pipe 1 is arrayed in the wall of the side wall portion of the four sides as shown in FIG. 1, also vertically as shown in FIG. 2 Extends in the direction. Yes and Tsugise' each other laterally phases Tonariru were if the steel pipe 1 in equilateral mountain-steel truss-like steel member 2, which is composed of, thereby, the side wall portions of the four sides of the concrete structure as shown in FIG. 1 A reinforcing frame structure that goes around is formed. In the figure, 3 indicates a bolt joint of the truss-like steel member 2. Next, after reinforcing bars 4 are arranged around the steel pipe 1 group, the steel pipe 1 is filled with high-strength, high-fluidity concrete 5, and the steel pipe 1 group and the reinforcing bars 4 joined by the truss-like steel member 2 are connected. The surrounding formwork is assembled and coated concrete 6 is placed. Thereby, the reinforcement frame structure comprised by the steel pipe 1 and the truss-shaped steel member 2 is coat | covered with the reinforced concrete structure, and the side wall part of the four sides of a concrete structure is comprised.
[0007]
The steel pipe 1 is connected through a welded joint 7.
[0008]
【The invention's effect】
According to the filled coated steel pipe concrete structure according to the present invention, as described above, the steel pipe built in the foundation is filled with high-strength, high-fluidity concrete, and each steel pipe is connected by a steel member. As a result, ultimate strength and toughness are ensured, and the steel pipe group connected by steel members is covered with reinforced concrete, ensuring horizontal rigidity, improving vibration characteristics, and ensuring safety during earthquakes. Is done. Moreover, the amount of reinforcing bars is reduced by the concrete-filled steel pipe group, and labor saving such as reinforcing work is achieved.
[Brief description of the drawings]
FIG. 1 is a plan sectional view showing an embodiment of a filled-clad steel pipe concrete structure according to the present invention.
FIG. 2 is a view as seen from the arrow in FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Steel pipe 2 Truss-like steel member 3 Bolt joint 4 Reinforcement 5 High strength, high fluidity concrete 6 Coated concrete 7 Welded joint

Claims (1)

  1. 四辺の側壁部により画成される中空矩形状の水平断面形状を有するコンクリート構造物に適用される充填被覆形鋼管コンクリート構造において、
    前記四辺の側壁部の壁内に列設されて基礎部に建込まれた鉛直方向に延在する複数の鋼管と、横方向に相隣る前記鋼管どうしを接合するトラス状鋼製部材とで構成された、前記コンクリート構造物の前記四辺の側壁部を一周する補強骨組構造体を備えており、前記複数の鋼管の各々に高強度、高流動コンクリートが充填されており、前記補強骨組構造体が鉄筋コンクリート構造で被覆されることで前記四辺の側壁部が構成されていることを特徴とする充填被覆形鋼管コンクリート構造。
    In a filled coated steel pipe concrete structure applied to a concrete structure having a hollow rectangular horizontal cross section defined by four side walls,
    A plurality of steel pipes extending in the vertical direction arranged in the walls of the side walls of the four sides and built in the foundation, and a truss-like steel member for joining the steel pipes adjacent to each other in the lateral direction A reinforcing frame structure configured to wrap around the side walls of the four sides of the concrete structure, each of the plurality of steel pipes being filled with high-strength, high-fluidity concrete, and the reinforcing frame structure filling coated shaped steel concrete structure but characterized in that the side wall portions of the four sides by being covered with reinforced concrete structure is constructed.
JP21462695A 1995-08-23 1995-08-23 Filled coated steel pipe concrete structure Expired - Fee Related JP3676442B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP21462695A JP3676442B2 (en) 1995-08-23 1995-08-23 Filled coated steel pipe concrete structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21462695A JP3676442B2 (en) 1995-08-23 1995-08-23 Filled coated steel pipe concrete structure

Publications (2)

Publication Number Publication Date
JPH0959933A JPH0959933A (en) 1997-03-04
JP3676442B2 true JP3676442B2 (en) 2005-07-27

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007146636A (en) * 2006-10-31 2007-06-14 Toyo Constr Co Ltd Construction method of concrete structure
CN102758555B (en) * 2012-07-31 2015-03-04 国家电网公司 Safety device for crossing tower and anchor tower of power transmission line
CN106758786B (en) * 2016-11-11 2018-08-21 重庆大学 A kind of prefabricated assembled concrete-filled double skin steel tube lattice bridge pier
CN106639500B (en) * 2016-12-22 2019-01-11 广西建工集团第一建筑工程有限责任公司 Slding form operation method of square variable-section multilayer platform chimney under high wind pressure

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