The utility model provides a cantilever anti-overturning anchorage device for steel truss arch bridge without bracket assembly side span, which has a group of high-strength anchors, steel anchor beams, connection adjustment converters, pre-stressed anchor cables, steel anchor corbels, anchor P anchors, anchor group positioning devices, steel pin hinges, 500t integral tension anchor jacks; the upper end of the group of high-strength anchors is connected with steel anchor beams, and the top end of the group of high-strength anchor rods is connected with steel anchor beams, and the high-strength anchor rods are connected with The upper end of the group is fixed by anchor group positioning device. The connection adjustment converter is located above the steel anchor beam and connected with the steel anchor beam through the steel pin hinge. The connection adjustment converter is connected with the steel anchor bracket through the prestressing anchor cable. The 500 t integral tension anchor jack is located above the steel anchor bracket. This patent mainly solves the problem that steel truss arch bridge needs to be weighted at side span during cantilever assembly without bracket to ensure that the whole structure does not overturn during cantilever assembly without bracket. The weight of the object is replaced by side span anchorage by installing anchorage device with permanent cap structure.
【技术实现步骤摘要】
钢桁拱桥无支架悬臂拼装边跨抗倾覆锚固装置
本技术涉及一种锚固装置,具体来讲是一种钢桁拱桥无支架悬臂拼装边跨抗倾覆锚固装置。
技术介绍
目前钢桁拱桥采用无支架悬臂拼装施工,由于跨中倾覆力矩一般都非常巨大,扣锚系统无法抵抗该倾覆力矩,为确保大悬臂拼装过程中结构部发生整体倾覆,主要采用在边跨进行重物配重的方式抵抗该倾覆力矩。该方法需要大量高密度铅块或重砼块,跨中拱肋合龙后,拆除的配重块二次利用率极低,材料消耗巨大。此外,配重块的安装拆除需要大量的人力及大型机械设备配合,施工成本极高,同时配重块的安装拆除施工周期较长,影响主体工程施工效率,吊装安装及拆除不确定安全风险因素较多。
技术实现思路
因此,为了解决上述不足,本技术在此提供一种钢桁拱桥无支架悬臂拼装边跨抗倾覆锚固装置;本专利主要解决钢桁拱桥在无支架悬臂拼装期间,需在边跨进行配重,以保证无支架大悬臂拼装过程中结构整体不发生倾覆,通过利用永久承台结构设置锚固装置,以边跨锚固替代物体配重。本技术是这样实现的,构造一种钢桁拱桥无支架悬臂拼装边跨抗倾覆锚固装置,其特征在于:该锚固装置具有φ42高强锚杆群、钢锚梁、连接调节转换器、预应 ...
【技术保护点】
1. 一种钢桁拱桥无支架悬臂拼装边跨抗倾覆锚固装置,其特征在于:该锚固装置具有φ42高强锚杆群(1)、钢锚梁(2)、连接调节转换器(3)、预应力锚索(4)、钢锚固牛腿(5)、锚索P锚(6)、锚杆群定位装置(7)、钢销铰(8)、 500t整体张拉锚固千斤顶(9);φ42高强锚杆群(1)的上端部与钢锚梁(2)连接,φ42高强锚杆群(1)的上端部通过锚杆群定位装置(7)固定,连接调节转换器(3)位于钢锚梁(2)的上方且通过钢销铰(8)与钢锚梁(2)连接,连接调节转换器(3)通过预应力锚索(4)与钢锚固牛腿(5)连接,500t整体张拉锚固千斤顶(9)位于钢锚固牛腿(5)的上方。
【技术特征摘要】
1.一种钢桁拱桥无支架悬臂拼装边跨抗倾覆锚固装置,其特征在于:该锚固装置具有φ42高强锚杆群(1)、钢锚梁(2)、连接调节转换器(3)、预应力锚索(4)、钢锚固牛腿(5)、锚索P锚(6)、锚杆群定位装置(7)、钢销铰(8)、500t整体张拉锚固千斤顶(9);φ42高强锚杆群(1)的上端...
【专利技术属性】
技术研发人员:边疆,叶昌勇,陈伟,肖安斌,周长宪,
申请(专利权)人:四川路桥华东建设有限责任公司,
类型:新型
国别省市:四川,51
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