A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Rapid pushing and transverse moving construction method adjacent to existing line frame bridge
The invention belongs to the technical field of bridge engineering construction, and particularly relates to a rapid pushing and transverse moving construction method adjacent to an existing line frame bridge. After the frame bridge is prefabricated, a top beam is placed in the middle behind the initial jacking position of the frame bridge; anchor columns are installed on the left side and the right side of a jacking area of the frame bridge, the anchor columns are implanted into preformed holes of bearing platform concrete, each side comprises two anchor columns, and anchor beams are placed in front of the anchor columns; the top beam is connected with the anchor beams on the two sides through finish rolling deformed steel bars, matched steel base plates and matched nuts. Jacks are symmetrically arranged on two sides of the bottom of the frame bridge by taking a slideway center line as an axis; by means of the counter-acting force of the top beam, the jack pushes the frame bridge to move forwards, after the frame bridge moves forwards by a step pitch, the pickaxe returns to enable the jack to recover, the top beam moves forwards to make contact with the jack, finish rolling deformed steel bars are fastened, and the steps are repeated till the bridge body is in place; according to the method, back pushing in a traditional construction method is replaced, pushing counter-force is provided through the back beam, the system can be recycled, and the construction cost is greatly reduced.
本发明属于桥梁工程施工技术领域，具体涉及一种紧邻既有线框架桥快速顶推横移施工方法；框架桥预制完成后在框架桥初始顶进位置后方居中放置顶梁；框架桥顶进区域左右两侧安装锚柱，锚柱植入承台混凝土的预留孔中，每侧包括两根锚柱，锚柱前方放置锚梁；顶梁通过精轧螺纹钢及配套钢垫板、螺帽与两侧的锚梁连接；框架桥底部两侧以滑道中线为轴线对称布置千斤顶；借助于顶梁的反作用力，千斤顶推动框架桥前进，框架桥前进一个步距后，回镐使千斤顶复原，顶梁向前移动与千斤顶接触，紧固精轧螺纹钢，如此循环往复，直至桥体就位；该方法取代传统施工方法中的顶推后背，顶推反力通过后背梁提供，该系统可循环重复利用，极大降低了工程造价。
Rapid pushing and transverse moving construction method adjacent to existing line frame bridge
The invention belongs to the technical field of bridge engineering construction, and particularly relates to a rapid pushing and transverse moving construction method adjacent to an existing line frame bridge. After the frame bridge is prefabricated, a top beam is placed in the middle behind the initial jacking position of the frame bridge; anchor columns are installed on the left side and the right side of a jacking area of the frame bridge, the anchor columns are implanted into preformed holes of bearing platform concrete, each side comprises two anchor columns, and anchor beams are placed in front of the anchor columns; the top beam is connected with the anchor beams on the two sides through finish rolling deformed steel bars, matched steel base plates and matched nuts. Jacks are symmetrically arranged on two sides of the bottom of the frame bridge by taking a slideway center line as an axis; by means of the counter-acting force of the top beam, the jack pushes the frame bridge to move forwards, after the frame bridge moves forwards by a step pitch, the pickaxe returns to enable the jack to recover, the top beam moves forwards to make contact with the jack, finish rolling deformed steel bars are fastened, and the steps are repeated till the bridge body is in place; according to the method, back pushing in a traditional construction method is replaced, pushing counter-force is provided through the back beam, the system can be recycled, and the construction cost is greatly reduced.
本发明属于桥梁工程施工技术领域，具体涉及一种紧邻既有线框架桥快速顶推横移施工方法；框架桥预制完成后在框架桥初始顶进位置后方居中放置顶梁；框架桥顶进区域左右两侧安装锚柱，锚柱植入承台混凝土的预留孔中，每侧包括两根锚柱，锚柱前方放置锚梁；顶梁通过精轧螺纹钢及配套钢垫板、螺帽与两侧的锚梁连接；框架桥底部两侧以滑道中线为轴线对称布置千斤顶；借助于顶梁的反作用力，千斤顶推动框架桥前进，框架桥前进一个步距后，回镐使千斤顶复原，顶梁向前移动与千斤顶接触，紧固精轧螺纹钢，如此循环往复，直至桥体就位；该方法取代传统施工方法中的顶推后背，顶推反力通过后背梁提供，该系统可循环重复利用，极大降低了工程造价。
Rapid pushing and transverse moving construction method adjacent to existing line frame bridge
一种紧邻既有线框架桥快速顶推横移施工方法
WANG SHAOJUN (author) / HAO JUNJIE (author) / HAN XUELIANG (author) / LIU JUNHUA (author) / WANG BAOBAO (author) / ZHAO JUNTAO (author) / HOU XINLONG (author) / LIU YIHAO (author) / LIU RUNJUN (author) / LI ZHANGJIE (author)
2023-07-28
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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