Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Maintenance and reinforcement method for bridge underwater piers in tidal zone
The invention discloses a low-cost and safe maintenance and reinforcement method for bridge underwater piers in a tidal zone. The method comprises the following steps of steel boxed cofferdam installation, sacrificial anode protection system installation and pier column concrete reinforcement. When the step of installing the steel boxed cofferdam is carried out, a lower inner support is fixed to the top face of a bearing platform in the mode that anchor bolts are implanted, then a side plate of the steel boxed cofferdam is connected with the lower inner support, and then a water stop belt working platform is pushed through a hydraulic jack till a GINA water stop belt is tightly attached to the side face of the bearing platform; when the sacrificial anode protection system installation step is carried out, a zinc block with the potential sequence in the front is arranged on a rusted steel bar of a pier column to serve as a sacrificial anode so as to protect an iron steel bar with the potential sequence in the rear. When the pier column concrete reinforcing step is carried out, a cushion block is arranged between the inner side face of the glass fiber reinforced plastic formwork and the outer surface of the pier column, the outer edge of a bottom opening of the glass fiber reinforced plastic formwork is plugged with mortar, and RPC concrete pouring is carried out after the mortar reaches certain strength.
本发明公开了一种成本低且安全的潮汐区桥梁水中墩的维修加固方法，包括以下步骤：钢套箱围堰安装、牺牲阳极防护系统安装和墩柱混凝土加固。进行钢套箱围堰安装步骤时，先采用植入锚栓的方式将下部内支撑固定在承台的顶面上，再将钢套箱围堰的侧板与下部内支撑连接，然后通过液压千斤顶推动止水带工作平台，直至GINA止水带与承台的侧面紧密贴合；进行牺牲阳极防护系统安装步骤时，采用在墩柱的锈蚀钢筋上设置电位序在前面的锌块作为牺牲阳极，来保护电位序在后面的铁质钢筋；进行墩柱混凝土加固步骤时，在玻璃钢模板的内侧面与墩柱的外表面之间设置垫块，并在玻璃钢模板的底口外边沿用砂浆封堵，在砂浆达到一定强度后进行RPC混凝土灌注。
Maintenance and reinforcement method for bridge underwater piers in tidal zone
The invention discloses a low-cost and safe maintenance and reinforcement method for bridge underwater piers in a tidal zone. The method comprises the following steps of steel boxed cofferdam installation, sacrificial anode protection system installation and pier column concrete reinforcement. When the step of installing the steel boxed cofferdam is carried out, a lower inner support is fixed to the top face of a bearing platform in the mode that anchor bolts are implanted, then a side plate of the steel boxed cofferdam is connected with the lower inner support, and then a water stop belt working platform is pushed through a hydraulic jack till a GINA water stop belt is tightly attached to the side face of the bearing platform; when the sacrificial anode protection system installation step is carried out, a zinc block with the potential sequence in the front is arranged on a rusted steel bar of a pier column to serve as a sacrificial anode so as to protect an iron steel bar with the potential sequence in the rear. When the pier column concrete reinforcing step is carried out, a cushion block is arranged between the inner side face of the glass fiber reinforced plastic formwork and the outer surface of the pier column, the outer edge of a bottom opening of the glass fiber reinforced plastic formwork is plugged with mortar, and RPC concrete pouring is carried out after the mortar reaches certain strength.
本发明公开了一种成本低且安全的潮汐区桥梁水中墩的维修加固方法，包括以下步骤：钢套箱围堰安装、牺牲阳极防护系统安装和墩柱混凝土加固。进行钢套箱围堰安装步骤时，先采用植入锚栓的方式将下部内支撑固定在承台的顶面上，再将钢套箱围堰的侧板与下部内支撑连接，然后通过液压千斤顶推动止水带工作平台，直至GINA止水带与承台的侧面紧密贴合；进行牺牲阳极防护系统安装步骤时，采用在墩柱的锈蚀钢筋上设置电位序在前面的锌块作为牺牲阳极，来保护电位序在后面的铁质钢筋；进行墩柱混凝土加固步骤时，在玻璃钢模板的内侧面与墩柱的外表面之间设置垫块，并在玻璃钢模板的底口外边沿用砂浆封堵，在砂浆达到一定强度后进行RPC混凝土灌注。
Maintenance and reinforcement method for bridge underwater piers in tidal zone
一种潮汐区桥梁水中墩的维修加固方法
LIN LIQIAN (Autor:in) / FU ZHILIN (Autor:in) / ZHUANG GUANSHENG (Autor:in) / CHEN JINDA (Autor:in) / GUO XINJIE (Autor:in)
01.08.2023
Patent
Elektronische Ressource
Chinesisch
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