首页> 外国专利> CONTINUATION METHOD OF A PSC BEAM USING A TEMPORARY PRESTRESSING APPARATUS CAPABLE OF PREVENTING THE DAMAGE BY SELF-WEIGHT OF A CONCRETE BEAM BY REINFORCING BY PRESTRESSING TEMPORARILY ON EACH CONCRETE BEAM MANUFACTURED WITH A SINGLE SPAN AND CONTINUING THE WHOLE SPAN COMPLETELY BY PLACING TENDONS CONTINUOUSLY OVER THE WHOLE SPAN AND PRESTRESSING AFTER PLACING MANY CONCRETE BEAMS ON A PIER, AND THE PRESTRESSING APPARATUS THEREFOR

CONTINUATION METHOD OF A PSC BEAM USING A TEMPORARY PRESTRESSING APPARATUS CAPABLE OF PREVENTING THE DAMAGE BY SELF-WEIGHT OF A CONCRETE BEAM BY REINFORCING BY PRESTRESSING TEMPORARILY ON EACH CONCRETE BEAM MANUFACTURED WITH A SINGLE SPAN AND CONTINUING THE WHOLE SPAN COMPLETELY BY PLACING TENDONS CONTINUOUSLY OVER THE WHOLE SPAN AND PRESTRESSING AFTER PLACING MANY CONCRETE BEAMS ON A PIER, AND THE PRESTRESSING APPARATUS THEREFOR

机译：使用临时预压设备的PSC梁的连续方法，该临时预压设备可通过对每个由单个截面和整个圆锥形连续的混凝土制成的混凝土梁进行临时预应力来加强预应力，以防止混凝土梁自重损坏将许多混凝土梁放置在码头上后进行全跨度和预压，以及预压装置

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摘要

PURPOSE: A continuation method of a PSC beam using a temporary prestressing apparatus is provided to install and dismantle a prestressing apparatus simply and to improve the efficiency on prestressing by installing a prestressing apparatus on a beam temporarily, to reduce the waste of materials and the cost required by recycling a prestressing apparatus, to secure the stiffness and durability of a bridge by continuing completely by prestressing on a spot joint of a negative moment section and to prevent the damage of a concrete beam by prestressing temporarily using a prestressing apparatus. CONSTITUTION: The continuation method of a PSC beam using a temporary prestressing apparatus comprises the steps of: applying prestress temporarily by installing an external tendon(40) on a concrete beam(2) with a sheathe pipe(4); pulling up the prestressed concrete beams(2), then placing on a pier in order; completing a field joint(60) by connecting the pre-laid sheathe pipes(4) of adjacent concrete beams(2) mutually and placing concrete on a spot joint of the placed concrete beam(2); installing crossbeams(70) on the connected concrete beams(2); placing prestress all over the span by inserting continuous tendons(80) to the concrete beams(2) to be continuous on the whole span, then tensioning and anchoring; and removing prestress by an external tendon(40) by un-anchoring the external tendon(40) installed on the outside of each concrete beam(2) and removing a prestressing apparatus.

机译：目的：提供一种使用临时预应力装置的PSC梁的延续方法，该方法可简单地安装和拆卸预应力装置，并通过在梁上临时安装预应力装置来提高预应力的效率，从而减少了材料浪费和成本通过循环使用一个预应力设备，来确保桥梁的刚度和耐久性，方法是通过在负弯矩部分的点缝上进行预应力来完全连续地进行，从而确保桥梁的刚度和耐久性，并通过使用预应力设备进行预应力来防止混凝土梁的损坏。构成：使用临时预应力设备的PSC梁的延续方法包括以下步骤：通过在带有护套管（4）的混凝土梁（2）上安装外部钢筋（40）来临时施加预应力;拉起预应力混凝土梁（2），然后按顺序放在码头上;通过将相邻的混凝土梁（2）的预制套管（4）相互连接，并将混凝土放置在已放置的混凝土梁（2）的点缝处，完成现场接合（60）;在连接的混凝土梁（2）上安装横梁（70）;通过在混凝土梁（2）上插入连续的钢筋束（80）以在整个跨度上连续，然后在张紧和锚固的过程中对整个跨度施加预应力。通过解开安装在每个混凝土梁（2）外侧的外部筋（40）并去除预应力装置，来消除外部筋（40）的预应力。

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公开/公告号KR20050015572A

专利类型
公开/公告日2005-02-21

原文格式PDF
申请/专利权人 NA HYUN GEUN;
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申请/专利号KR20030054454
发明设计人 NA HYUN GEUN;
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申请日2003-08-06
分类号E01D2/00;
国家 KR
入库时间 2022-08-21 22:05:49

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