Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Construction method for dismantling hollow slab girder of approach bridge superstructure
The invention relates to the technical field of bridge construction, and provides an approach bridge superstructure hollow slab girder dismantling construction method which comprises the following operation steps: Step 1, determining a dismantling sequence: numbering each span of hollow slab girders, and determining the dismantling sequence of the hollow slab girders to be a middle girder, a secondary boundary girder and a final boundary girder; 2, preparation before dismantling is carried out, wherein a core drilling machine is matched with a rotary saw and a wire saw to cut hinge joints between the hollow plate beam plates; and Step 3, dismantling: dismantling the hollow slab girders span by span by using a bridge girder erection machine, and directly hoisting the hollow slab girders to a girder transporting gun carrier after dismantling to be transported to a breaking site for breaking. According to the dismantling method, the core drilling machine is matched with the rotary saw and the rope saw to cut the hinge joints between the hollow plate girders according to the dismantling sequence, the hollow plate girders are dismantled in a span-by-span dismantling mode in cooperation with the bridge erecting machine, the dismantling speed is high, segmentation according to the hinge joints is more convenient and rapid, ruins and large pollution cannot be generated compared with a blasting mode, and the construction efficiency is improved. And the tonnage of the bridge girder erection machine is relatively small, so that the safety is higher when hollow slab girders are hoisted.
本发明涉桥梁施工技术领域，提出一种引桥上部结构空心板梁拆除施工方法，包括以下操作步骤：Step1、确定拆除顺序：对每跨空心板梁进行编号，确定其拆除顺序为先中梁、后次边梁，最后边梁；Step2、拆除前的准备：采用钻芯机配合盘锯、绳锯切割空心板梁板之间的铰缝；Step3、拆除的过程：空心板梁利用架桥机逐跨拆除，拆除后直接吊至运梁炮车运至破除场地破除。本发明按照拆除顺序采用钻芯机配合盘锯、绳锯切割空心板梁板之间的铰缝，并配合架桥机采用逐跨拆除的方式来实现空心板梁的拆除施工，拆除速度快，按铰缝分割更为方便快捷，相对于采用爆破的方式不会产生废墟及较大的污染，且架桥机的吨位相对较小，在吊运空心板梁时安全性更高。
Construction method for dismantling hollow slab girder of approach bridge superstructure
The invention relates to the technical field of bridge construction, and provides an approach bridge superstructure hollow slab girder dismantling construction method which comprises the following operation steps: Step 1, determining a dismantling sequence: numbering each span of hollow slab girders, and determining the dismantling sequence of the hollow slab girders to be a middle girder, a secondary boundary girder and a final boundary girder; 2, preparation before dismantling is carried out, wherein a core drilling machine is matched with a rotary saw and a wire saw to cut hinge joints between the hollow plate beam plates; and Step 3, dismantling: dismantling the hollow slab girders span by span by using a bridge girder erection machine, and directly hoisting the hollow slab girders to a girder transporting gun carrier after dismantling to be transported to a breaking site for breaking. According to the dismantling method, the core drilling machine is matched with the rotary saw and the rope saw to cut the hinge joints between the hollow plate girders according to the dismantling sequence, the hollow plate girders are dismantled in a span-by-span dismantling mode in cooperation with the bridge erecting machine, the dismantling speed is high, segmentation according to the hinge joints is more convenient and rapid, ruins and large pollution cannot be generated compared with a blasting mode, and the construction efficiency is improved. And the tonnage of the bridge girder erection machine is relatively small, so that the safety is higher when hollow slab girders are hoisted.
本发明涉桥梁施工技术领域，提出一种引桥上部结构空心板梁拆除施工方法，包括以下操作步骤：Step1、确定拆除顺序：对每跨空心板梁进行编号，确定其拆除顺序为先中梁、后次边梁，最后边梁；Step2、拆除前的准备：采用钻芯机配合盘锯、绳锯切割空心板梁板之间的铰缝；Step3、拆除的过程：空心板梁利用架桥机逐跨拆除，拆除后直接吊至运梁炮车运至破除场地破除。本发明按照拆除顺序采用钻芯机配合盘锯、绳锯切割空心板梁板之间的铰缝，并配合架桥机采用逐跨拆除的方式来实现空心板梁的拆除施工，拆除速度快，按铰缝分割更为方便快捷，相对于采用爆破的方式不会产生废墟及较大的污染，且架桥机的吨位相对较小，在吊运空心板梁时安全性更高。
Construction method for dismantling hollow slab girder of approach bridge superstructure
一种引桥上部结构空心板梁拆除施工方法
DONG ZHENGXIONG (Autor:in) / LI XIANGYANG (Autor:in) / QIN LEI (Autor:in) / HU SHAOYONG (Autor:in) / LI ZHAOHUI (Autor:in) / XIA JIANBO (Autor:in) / WANG FEIYUN (Autor:in) / ZHAO GUOXIANG (Autor:in) / TAO LIANG (Autor:in)
22.11.2024
Patent
Elektronische Ressource
Chinesisch
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