Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Large-span steel tube concrete arch bridge suspender replacement monitoring method
A large-span steel tube concrete arch bridge suspender replacement monitoring method comprises the steps of full-bridge suspender length measurement, full-bridge elevation initial value measurement, temporary suspender system installation, temporary suspender system step-by-step tensioning, original suspender steel wire step-by-step cutting, chambering, old suspender dismantling, new suspender installation, new suspender step-by-step tensioning to a design value, and temporary suspender system tensioning force step-by-step removing. Tightening a nut at the tensioning end of the new suspender, installing a damper and a waterproof cover of the suspender on the bridge floor, and remeasuring the elevation of the bridge floor. By means of the method, the bearing capacity of the temporary suspender system meets the safety requirement of a temporary structure in the bridge suspender replacement process, tensioning of the temporary suspender system meets the requirement that bridge deck deformation is controlled within 5 mm, and temporary facilities and structures are always in a safe state in the suspender replacement process; the elevation and tension of the cross beam before and after the suspender is replaced meet the requirements of design regulations.
大跨度钢管砼拱桥吊杆更换监测方法，包括对全桥吊杆长度测量，全桥标高初值测定，临时吊杆体系安装，逐级张拉临时吊杆体系，逐级切割原吊杆钢丝，扩孔，旧吊杆拆除，安装新吊杆，逐级张拉新吊杆至设计值，逐级卸除临时吊杆体系的张拉力，拧紧新吊杆张紧端螺母，安装吊杆位于桥面的减震器和防水罩，对桥面标高进行复测。通过上述方法，临时吊杆体系的承载能力满足本桥吊杆更换过程中临时结构的安全性要求，临时吊杆体系的张拉满足桥面变形控制在5mm以内的要求，吊杆更换过程中临时设施、结构始终处于安全状态，吊杆更换前后的横梁标高、张力满足设计规定的要求。
Large-span steel tube concrete arch bridge suspender replacement monitoring method
A large-span steel tube concrete arch bridge suspender replacement monitoring method comprises the steps of full-bridge suspender length measurement, full-bridge elevation initial value measurement, temporary suspender system installation, temporary suspender system step-by-step tensioning, original suspender steel wire step-by-step cutting, chambering, old suspender dismantling, new suspender installation, new suspender step-by-step tensioning to a design value, and temporary suspender system tensioning force step-by-step removing. Tightening a nut at the tensioning end of the new suspender, installing a damper and a waterproof cover of the suspender on the bridge floor, and remeasuring the elevation of the bridge floor. By means of the method, the bearing capacity of the temporary suspender system meets the safety requirement of a temporary structure in the bridge suspender replacement process, tensioning of the temporary suspender system meets the requirement that bridge deck deformation is controlled within 5 mm, and temporary facilities and structures are always in a safe state in the suspender replacement process; the elevation and tension of the cross beam before and after the suspender is replaced meet the requirements of design regulations.
大跨度钢管砼拱桥吊杆更换监测方法，包括对全桥吊杆长度测量，全桥标高初值测定，临时吊杆体系安装，逐级张拉临时吊杆体系，逐级切割原吊杆钢丝，扩孔，旧吊杆拆除，安装新吊杆，逐级张拉新吊杆至设计值，逐级卸除临时吊杆体系的张拉力，拧紧新吊杆张紧端螺母，安装吊杆位于桥面的减震器和防水罩，对桥面标高进行复测。通过上述方法，临时吊杆体系的承载能力满足本桥吊杆更换过程中临时结构的安全性要求，临时吊杆体系的张拉满足桥面变形控制在5mm以内的要求，吊杆更换过程中临时设施、结构始终处于安全状态，吊杆更换前后的横梁标高、张力满足设计规定的要求。
Large-span steel tube concrete arch bridge suspender replacement monitoring method
大跨度钢管砼拱桥吊杆更换监测方法
GUAN WENHAI (Autor:in) / LU WEIBING (Autor:in) / JING HUI (Autor:in)
29.08.2023
Patent
Elektronische Ressource
Chinesisch
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