Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Steel box girder step pitch type multi-point incremental launching installation method
The invention discloses a steel box girder step pitch type multi-point incremental launching installation method. According to the installation method, a steel box girder is integrally manufactured ina factory, and a site assembly scheme is prefabricated, so strength of hoisting operation is reduced, the construction efficiency, the operation precision and the safety coefficient are improved, andthe safety is high; incremental launching construction is carried out by adopting a step pitch type multi-point incremental launching method, an incremental launching system, a temporary support system and a guide beam are used for guiding, so large-span box girder spanning type integral installation is achieved, large-scale mechanical investment is avoided, high-altitude hoisting potential safety hazards of ultra-long heavy-load components are reduced, a displacement sensor, a static leveling instrument and a stress sensor are arranged in the construction process, transverse displacement, longitudinal displacement, stress, sedimentation and other data of temporary buttresses are monitored in real time, and omnibearing monitoring and early warning are conducted on the construction process; and by the adoption of the beam falling scheme of alternate falling support supporting and abutment supporting, the construction cost is reduced, the construction safety is improved, and the construction site can be fully saved.
本发明公开了一种钢箱梁步距式多点顶推安装方法，在该安装方法中钢箱梁采用工厂整体制作、预制场地现场组装方案，降低了吊装作业强度，提高了施工效率、作业精度及安全系数，安全性高，采用步距式多点顶推法进行顶推施工，利用顶推系统、临时支架体系、导梁引导，实现大跨度箱梁跨越式整体安装，避免大型机械投入，减少超长重载构件的高空吊装安全隐患，在施工过程中设置位移传感器、静力水准仪及应力传感器，实时监测临时支墩的横、纵向位移、应力及沉降等数据，对施工过程全方位监控预警；采用交替降落支架支撑及桥台支撑的落梁方案，降低了施工成本，提高施工安全性高，并能充分节省施工场地。
Steel box girder step pitch type multi-point incremental launching installation method
The invention discloses a steel box girder step pitch type multi-point incremental launching installation method. According to the installation method, a steel box girder is integrally manufactured ina factory, and a site assembly scheme is prefabricated, so strength of hoisting operation is reduced, the construction efficiency, the operation precision and the safety coefficient are improved, andthe safety is high; incremental launching construction is carried out by adopting a step pitch type multi-point incremental launching method, an incremental launching system, a temporary support system and a guide beam are used for guiding, so large-span box girder spanning type integral installation is achieved, large-scale mechanical investment is avoided, high-altitude hoisting potential safety hazards of ultra-long heavy-load components are reduced, a displacement sensor, a static leveling instrument and a stress sensor are arranged in the construction process, transverse displacement, longitudinal displacement, stress, sedimentation and other data of temporary buttresses are monitored in real time, and omnibearing monitoring and early warning are conducted on the construction process; and by the adoption of the beam falling scheme of alternate falling support supporting and abutment supporting, the construction cost is reduced, the construction safety is improved, and the construction site can be fully saved.
本发明公开了一种钢箱梁步距式多点顶推安装方法，在该安装方法中钢箱梁采用工厂整体制作、预制场地现场组装方案，降低了吊装作业强度，提高了施工效率、作业精度及安全系数，安全性高，采用步距式多点顶推法进行顶推施工，利用顶推系统、临时支架体系、导梁引导，实现大跨度箱梁跨越式整体安装，避免大型机械投入，减少超长重载构件的高空吊装安全隐患，在施工过程中设置位移传感器、静力水准仪及应力传感器，实时监测临时支墩的横、纵向位移、应力及沉降等数据，对施工过程全方位监控预警；采用交替降落支架支撑及桥台支撑的落梁方案，降低了施工成本，提高施工安全性高，并能充分节省施工场地。
Steel box girder step pitch type multi-point incremental launching installation method
一种钢箱梁步距式多点顶推安装方法
NA MINGYAN (Autor:in) / LI JIE (Autor:in) / LI FU (Autor:in) / WANG TIEZHU (Autor:in) / LIANG JUN (Autor:in) / WANG MIN (Autor:in)
22.09.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
E01D
BRIDGES
,
Brücken
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