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A platform for research: civil engineering, architecture and urbanism
Construction method of ground anchor type steel structure overhanging sidewalk
The invention discloses a construction method of a ground anchor type steel structure overhanging sidewalk. The construction method comprises the following steps: 1) construction preparation; 2) sitecleaning and lofting: cleaning the outer side of a road cantilever, and carrying out raft lofting on an original pavement; 3) manufacturing and mounting: manufacturing and mounting raft bottom-layer reinforcing steel bars, hidden beam reinforcing steel bars, main steel beams and raft upper-layer reinforcing steel bars; 4) mounting an outer template: mounting a raft and a hidden beam outer template; (5) concrete pouring and maintenance: pouring concrete into the raft and the hidden beam outer mold, carrying out vibration, and carrying out joint cutting and maintenance after the concrete is solidified; 6) paving a surface layer of the overhanging gallery road; 7) mounting arc-shaped handrails; and 8) paving an asphalt surface layer. The method has the beneficial effects that: the raft hiddenbeam is used as a fulcrum, high-strength anchor bolts are used for acting on an embedded end main steel beam to meet the anchoring force required by design, the inner raft and an old pavement structure are combined into an integral balance weight to provide a guarantee, and cantilever arrangement is conducted according to the principle that the anchoring force plus the integral balance weight islarger than all effective loads borne by the cantilever side on the premise that safety and stability are guaranteed.
本发明公开了地锚式钢结构悬挑人行道施工方法，包括如下步骤：1)施工准备；2)场地清理、放样：对道路悬挑外侧进行清理，并在原始路面进行筏板放样；3)制作安装：对筏板底层钢筋、暗梁钢筋、主钢梁及筏板上层钢筋制作安装；4)外模板安装：对筏板、暗梁外模进行安装；5)浇筑混凝土及养护：向筏板、暗梁外模内浇筑混凝土，并振捣，混凝土凝固后进行切缝并养护；6)悬挑栈道面层铺装；7)弧形栏杆安装；8)沥青面层铺装；本发明的有益效果是：以筏板暗梁为支点，利用高强锚固螺栓作用在预埋端主钢梁上满足设计要求的锚固力，再结合内侧筏板及老路面结构合为整体的配重作为保障，在保证安全稳定的前提下以锚固力加整体配重大于悬挑侧所承受全部有效荷载为原则进行悬挑布置。
Construction method of ground anchor type steel structure overhanging sidewalk
The invention discloses a construction method of a ground anchor type steel structure overhanging sidewalk. The construction method comprises the following steps: 1) construction preparation; 2) sitecleaning and lofting: cleaning the outer side of a road cantilever, and carrying out raft lofting on an original pavement; 3) manufacturing and mounting: manufacturing and mounting raft bottom-layer reinforcing steel bars, hidden beam reinforcing steel bars, main steel beams and raft upper-layer reinforcing steel bars; 4) mounting an outer template: mounting a raft and a hidden beam outer template; (5) concrete pouring and maintenance: pouring concrete into the raft and the hidden beam outer mold, carrying out vibration, and carrying out joint cutting and maintenance after the concrete is solidified; 6) paving a surface layer of the overhanging gallery road; 7) mounting arc-shaped handrails; and 8) paving an asphalt surface layer. The method has the beneficial effects that: the raft hiddenbeam is used as a fulcrum, high-strength anchor bolts are used for acting on an embedded end main steel beam to meet the anchoring force required by design, the inner raft and an old pavement structure are combined into an integral balance weight to provide a guarantee, and cantilever arrangement is conducted according to the principle that the anchoring force plus the integral balance weight islarger than all effective loads borne by the cantilever side on the premise that safety and stability are guaranteed.
本发明公开了地锚式钢结构悬挑人行道施工方法，包括如下步骤：1)施工准备；2)场地清理、放样：对道路悬挑外侧进行清理，并在原始路面进行筏板放样；3)制作安装：对筏板底层钢筋、暗梁钢筋、主钢梁及筏板上层钢筋制作安装；4)外模板安装：对筏板、暗梁外模进行安装；5)浇筑混凝土及养护：向筏板、暗梁外模内浇筑混凝土，并振捣，混凝土凝固后进行切缝并养护；6)悬挑栈道面层铺装；7)弧形栏杆安装；8)沥青面层铺装；本发明的有益效果是：以筏板暗梁为支点，利用高强锚固螺栓作用在预埋端主钢梁上满足设计要求的锚固力，再结合内侧筏板及老路面结构合为整体的配重作为保障，在保证安全稳定的前提下以锚固力加整体配重大于悬挑侧所承受全部有效荷载为原则进行悬挑布置。
Construction method of ground anchor type steel structure overhanging sidewalk
地锚式钢结构悬挑人行道施工方法
LOU HAILONG (author) / ZHOU SONGGUO (author) / YAO YUXIANG (author) / YANG MING (author) / CHEN TIANPING (author) / ZHU XIAO (author) / NI WEIFANG (author) / TANG HUILONG (author) / HE YINGTAO (author) / GE PEIDONG (author)
2020-07-28
Patent
Electronic Resource
Chinese
IPC:
E01C
Bau von Straßen, Sportplätzen oder dgl., Decken dafür
,
CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE
/
E01D
BRIDGES
,
Brücken
/
E01F
ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
,
Zusätzliche Baumaßnahmen, wie die Ausstattung von Straßen oder die bauliche Ausbildung von Bahnsteigen, Landeplätzen für Hubschrauber, Wegweisern, Schneezäunen oder dgl.
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