摘要:
PURPOSE: A device for fastening tension bars to the top end and the bottom end of an electric pole, and a method for manufacturing an electric pole using the same are provided to prevent residual stress in tension bars by performing an arc welding process instead of a cutting process. CONSTITUTION: A device for fastening tension bars to the top end and the bottom end of an electric pole comprises a top end plate(800A), a bottom end plate(800B), and tension insert bolts(700A). Both ends of tension bars(900) are in contact with the inner surface(840A) of the top end plate and the inner surface(830B) of the bottom end plate. The tension insert bolts are penetrated through insertion holes of the top end plate and the bottom end plate. Spiral parts(920) of the tension bars are coupled to spiral parts of the tension insert bolts.
摘要:
PURPOSE: A manufacturing method of a concrete block for turnout of an automated guideway type light rail transit is provided to reduce construction time and work amount. CONSTITUTION: A manufacturing method of a concrete block for turnout of an automated guideway type light rail transit comprises: a step of installing temporal assembly tables on both sides of the ground; a step of installing a temporal rail on the temporal assembly; a step of installing a lower form(400) on the ground between the temporal assembly tables; a step of installing the side form(420) on the one side and the other side of the top plate; a step of installing inserted nuts(500) on a floor part of the side mold. a step of installing a control pipe in a lateral direction and a sheath pipe in a longitudinal direction on the lower mold; a step of installing and cultivating concrete on the bottom part of the side mold and the lower mold to form a concrete block(100).
摘要:
Method for producing a concrete sleeper, comprising the following steps: inserting pretensioned steel elements into a sleeper mould, simultaneous automated tensioning of the individual pretensioned steel elements, introduction of concrete into the sleeper mould, leaving the concrete to set, removal of the concrete sleeper from the mould, wherein more than four, in particular five to eight, pretensioned steel elements are used for a concrete sleeper and the pretensioned steel elements are tensioned individually but nevertheless simultaneously.
摘要:
프리스트레스트 2축 강화재를 구비한 시멘트 몰타르 패널은, 2 내지 7 cm 범위의 두께를 가지며 2축 강화재를 포함하는 시멘트 몰타르의 슬래브에 의해 형성된다. 상기 슬래브는 패널 조립체의 조작 및/또는 빌딩 구조물에의 고정을 가능케 하는 다용도 조작을 위한 수단을 시멘트 몰타르 덩어리 내에 은닉시키며, 상기 다용도 작동 수단은 일측 편에서는 세팅된 시멘트 몰타르 덩어리에 그것들을 고정하기 위한 수단을 구성하며, 반대편 타측 편에서는 패널 조작 수단을 위한, 또는 상기 빌딩 구조물에 대한 그것의 고정을 위한 부재들을 위한 고정 수단을 구성한다. 시멘트 몰타르 패널, 프리스트레스트 강화재, 다용도, 다목적, 조작 수단
摘要:
PURPOSE: A manufacturing method of band-free type concrete pile is provided to reduce the use of raw materials by manufacturing concrete piles in a separated state instead of attaching a metal band to both ends of the concrete pile, thereby improving the productivity and securing the product competitiveness. CONSTITUTION: A manufacturing method of band-free type concrete pile comprises the following steps: a build-up process for installing a steel bar in a lower molding frame in a state that bands are arranged on both ends of the lower molding frame; an injecting process for injecting a concrete mixture into the lower molding frame; a frame forming process for binding an upper molding frame which forms the upper part of the lower molding frame, and combining the upper molding frame with the lower molding frame; a pulling process for fixing the steel bar in an elongated state; a centrifugal process for molding the frames in a pile form by rotating them; a curing process for making the pile have a fixed strength by curing with vapor; and a demolding process for separating the upper and lower molding frames and separating the pile completed in the lower molding frame. After the demolding process, a band separating process for separating the band placed on the both ends of the completed pile is performed. [Reference numerals] (110) Automatic concrete feeder; (AA) Feed materials; (BB) Material meter; (CC) Organize the arrangement of bar; (DD) Feed and measure concrete; (EE) Install the arrangement of bar; (FF) Combine frames; (GG) Elongate the arrangement of bar; (HH) Room temperature steam cure; (II) Centrifugal cast; (JJ) Separate the frames and extract piles; (KK) Separate bands
摘要:
This cement mortar panel with pretensed biaxial reinforcement, comprises a cement mortar plate that, is between 2 and 7 cm. thick and includes a biaxial reinforcement, with hidden in the cement mortar means for versatile operation of the whole panel enabling handling and/or fastening thereof to a building structure, said means of versatile operation comprise, firstly means of retention in the hardening cement mortar and secondly and conversely, means for any type of securing for manipulation elements for the panel and means for fastening the same to the building structure.