A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Method for dismantling old frame bridge below railway operation line
The invention relates to the technical field of bridge engineering construction, and discloses a method for dismantling an old frame bridge below a railway operation line, which comprises the following steps of: S1, erecting a formwork in the middle of the interior of the old frame bridge, pouring concrete to form a plain concrete strip-shaped foundation, hanging a reinforcing mesh on the outer side of the plain concrete strip-shaped foundation, and anchoring the reinforcing mesh into a top plate and a bottom plate of the old frame bridge; and S2, independent buttresses are constructed at the corresponding positions according to the specifications of the D-shaped auxiliary beams, the D-shaped auxiliary beams are erected between a top plate of the frame bridge over the plain concrete strip-shaped foundation and the independent buttresses, and corresponding railway tracks are reinforced. According to the method for dismantling the old frame bridge below the railway operation line, the construction mode of pure rope saw cutting or pure integral ejection in traditional old frame bridge dismantling is abandoned, the problem that the width of the old frame bridge is large, so that a widest D-shaped auxiliary beam cannot be arranged on the upper portion of the old frame bridge in a spanning mode is solved, the advantages of multiple construction methods are complementary, and the construction efficiency is improved. The construction problem is reasonably solved, and operability is high.
本发明涉及桥梁工程施工技术领域，公开了一种铁路运营线下方旧框架桥拆除方法，包括S1、在旧框架桥内部中间支模、浇筑混凝土形成素混凝土条形基础，素混凝土条形基础外侧挂钢筋网片并锚入旧框架桥顶板与底板中。S2、根据D型便梁的规格在相应位置施工独立支墩，使D型便梁架设在素混凝土条形基础正上方框架桥的顶板与独立支墩之间，并加固相应铁路轨道。本发明的铁路运营线下方旧框架桥拆除方法，摈弃了传统旧框架桥拆除中单纯绳锯切割或单纯整体顶出的施工方式，解决了旧框架桥宽度较大、以至于其上部无法跨设最宽型号的D型便梁问题，多种施工方法优势互补，合理的解决了施工难题，可操作性强。
Method for dismantling old frame bridge below railway operation line
The invention relates to the technical field of bridge engineering construction, and discloses a method for dismantling an old frame bridge below a railway operation line, which comprises the following steps of: S1, erecting a formwork in the middle of the interior of the old frame bridge, pouring concrete to form a plain concrete strip-shaped foundation, hanging a reinforcing mesh on the outer side of the plain concrete strip-shaped foundation, and anchoring the reinforcing mesh into a top plate and a bottom plate of the old frame bridge; and S2, independent buttresses are constructed at the corresponding positions according to the specifications of the D-shaped auxiliary beams, the D-shaped auxiliary beams are erected between a top plate of the frame bridge over the plain concrete strip-shaped foundation and the independent buttresses, and corresponding railway tracks are reinforced. According to the method for dismantling the old frame bridge below the railway operation line, the construction mode of pure rope saw cutting or pure integral ejection in traditional old frame bridge dismantling is abandoned, the problem that the width of the old frame bridge is large, so that a widest D-shaped auxiliary beam cannot be arranged on the upper portion of the old frame bridge in a spanning mode is solved, the advantages of multiple construction methods are complementary, and the construction efficiency is improved. The construction problem is reasonably solved, and operability is high.
本发明涉及桥梁工程施工技术领域，公开了一种铁路运营线下方旧框架桥拆除方法，包括S1、在旧框架桥内部中间支模、浇筑混凝土形成素混凝土条形基础，素混凝土条形基础外侧挂钢筋网片并锚入旧框架桥顶板与底板中。S2、根据D型便梁的规格在相应位置施工独立支墩，使D型便梁架设在素混凝土条形基础正上方框架桥的顶板与独立支墩之间，并加固相应铁路轨道。本发明的铁路运营线下方旧框架桥拆除方法，摈弃了传统旧框架桥拆除中单纯绳锯切割或单纯整体顶出的施工方式，解决了旧框架桥宽度较大、以至于其上部无法跨设最宽型号的D型便梁问题，多种施工方法优势互补，合理的解决了施工难题，可操作性强。
Method for dismantling old frame bridge below railway operation line
一种铁路运营线下方旧框架桥拆除方法
CHEN JIANPING (author) / ZHANG MENGWEI (author) / CHEN JIAKANG (author) / YAN YITONG (author) / XIA LEI (author) / CHEN WEI (author) / CAO KUNPENG (author) / ZHOU JING (author) / WANG GUANQUN (author) / HU ZENGMING (author)
2022-11-08
Patent
Electronic Resource
Chinese
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