Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Construction method for reinforcing and repairing concrete cover beam through external prestressing
The invention relates to a construction method for reinforcing and repairing a concrete cover beam through external prestress. The construction method comprises the steps of bridge reinforcing construction, hanging type construction platform installation, anchoring steel plate fixing, upper steel strand installation, transverse prestress installation and construction platform dismantling. The method has the beneficial effects that the original bridge is reinforced by adopting the newly added foundation and the reinforced steel pipe columns, and the overall stability of the bridge is improved through a temporary support span reduction technology; the hanging type construction platform is adopted to provide a construction platform for reinforcing the bent cap, so that the safety of the construction operation is improved; local transverse prestress and longitudinal prestress are combined to reinforce the cover beam, and the overall strength of the cover beam structure is improved.
本发明涉及一种体外预应力加固修复混凝土盖梁的施工方法，包括步骤：桥梁加固施工、吊挂式施工平台安装、锚固钢板固定、上部钢绞线安装、横向预应力安装、施工平台拆除。本发明的有益效果是：采用新增基础和加固钢管柱对原有桥梁进行加固处理，通过临时支撑减跨技术提高桥梁的整体稳定性；采用吊挂式施工平台提供盖梁加固作业的施工平台，提高施工作业安全性；采用局部横向预应力与纵向预应力组合对盖梁进行加固，提高盖梁结构的整体强度。
Construction method for reinforcing and repairing concrete cover beam through external prestressing
The invention relates to a construction method for reinforcing and repairing a concrete cover beam through external prestress. The construction method comprises the steps of bridge reinforcing construction, hanging type construction platform installation, anchoring steel plate fixing, upper steel strand installation, transverse prestress installation and construction platform dismantling. The method has the beneficial effects that the original bridge is reinforced by adopting the newly added foundation and the reinforced steel pipe columns, and the overall stability of the bridge is improved through a temporary support span reduction technology; the hanging type construction platform is adopted to provide a construction platform for reinforcing the bent cap, so that the safety of the construction operation is improved; local transverse prestress and longitudinal prestress are combined to reinforce the cover beam, and the overall strength of the cover beam structure is improved.
本发明涉及一种体外预应力加固修复混凝土盖梁的施工方法，包括步骤：桥梁加固施工、吊挂式施工平台安装、锚固钢板固定、上部钢绞线安装、横向预应力安装、施工平台拆除。本发明的有益效果是：采用新增基础和加固钢管柱对原有桥梁进行加固处理，通过临时支撑减跨技术提高桥梁的整体稳定性；采用吊挂式施工平台提供盖梁加固作业的施工平台，提高施工作业安全性；采用局部横向预应力与纵向预应力组合对盖梁进行加固，提高盖梁结构的整体强度。
Construction method for reinforcing and repairing concrete cover beam through external prestressing
体外预应力加固修复混凝土盖梁的施工方法
WAN LIN (Autor:in) / WANG HAO (Autor:in) / REN WULING (Autor:in) / ZHU MINZHI (Autor:in) / BING QIUYING (Autor:in)
30.06.2023
Patent
Elektronische Ressource
Chinesisch
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