Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Anchor cable prestress nondestructive testing system and testing method
The invention provides an anchor cable prestress nondestructive testing system and testing method, a displacement signal collector is installed on an anchorage device close to the interface of an anchor bearing plate to measure the vibration displacement of the anchorage device, a tangential exciting force is applied to the opposite side of the displacement signal collector through an exciting hammer, and the tangential exciting force is recorded; the tangential contact rigidity between the anchorage device and the anchor bearing plate is calculated by the microprocessor according to the tangential exciting force and the tangential displacement, and then the prestress of the anchor cable is obtained by the microprocessor according to the tangential contact rigidity. The detection method is an anchor cable pre-stress nondestructive detection method, hardly causes adverse effects on an original pre-stress structure, can solve the problems that an existing anchor cable stress detection method is complex in operation procedure, high in detection cost and the like, and meanwhile, due to the fact that tangential excitation and vibration displacement testing are carried out on the outer anchoring section of the pre-stressed anchor cable. Therefore, the detection process is convenient, the detection efficiency is high, the detection cost is low, the method can be suitable for anchor cables in various projects such as geotechnical engineering and bridge engineering, and the application range is wide.
本发明提出了一种锚索预应力无损检测系统及检测方法，在靠近锚垫板界面的锚具上安装位移信号采集器测量锚具的振动位移，在位移信号采集器的对侧使用激振锤施加切向激振力并记录切向激振力，由微处理器根据切向激振力和相切向位移计算出锚具与锚垫板间的切向接触刚度，微处理器再根据前述的切向接触刚度得出锚索预应力。该检测方法为锚索预应力无损检测方法，对原预应力结构几乎不造成不良影响，可以解决现有锚索应力检测方法操作程序复杂、检测成本高等问题，同时由于切向激振和振动位移测试都是在预应力锚索的外锚固段上进行，因而检测过程便捷、检测效率高、检测成本便宜，可适用于岩土工程、桥梁工程等各类工程中的锚索，适用范围广。
Anchor cable prestress nondestructive testing system and testing method
The invention provides an anchor cable prestress nondestructive testing system and testing method, a displacement signal collector is installed on an anchorage device close to the interface of an anchor bearing plate to measure the vibration displacement of the anchorage device, a tangential exciting force is applied to the opposite side of the displacement signal collector through an exciting hammer, and the tangential exciting force is recorded; the tangential contact rigidity between the anchorage device and the anchor bearing plate is calculated by the microprocessor according to the tangential exciting force and the tangential displacement, and then the prestress of the anchor cable is obtained by the microprocessor according to the tangential contact rigidity. The detection method is an anchor cable pre-stress nondestructive detection method, hardly causes adverse effects on an original pre-stress structure, can solve the problems that an existing anchor cable stress detection method is complex in operation procedure, high in detection cost and the like, and meanwhile, due to the fact that tangential excitation and vibration displacement testing are carried out on the outer anchoring section of the pre-stressed anchor cable. Therefore, the detection process is convenient, the detection efficiency is high, the detection cost is low, the method can be suitable for anchor cables in various projects such as geotechnical engineering and bridge engineering, and the application range is wide.
本发明提出了一种锚索预应力无损检测系统及检测方法，在靠近锚垫板界面的锚具上安装位移信号采集器测量锚具的振动位移，在位移信号采集器的对侧使用激振锤施加切向激振力并记录切向激振力，由微处理器根据切向激振力和相切向位移计算出锚具与锚垫板间的切向接触刚度，微处理器再根据前述的切向接触刚度得出锚索预应力。该检测方法为锚索预应力无损检测方法，对原预应力结构几乎不造成不良影响，可以解决现有锚索应力检测方法操作程序复杂、检测成本高等问题，同时由于切向激振和振动位移测试都是在预应力锚索的外锚固段上进行，因而检测过程便捷、检测效率高、检测成本便宜，可适用于岩土工程、桥梁工程等各类工程中的锚索，适用范围广。
Anchor cable prestress nondestructive testing system and testing method
一种锚索预应力无损检测系统及检测方法
PENG CHUANYANG (Autor:in) / CHEN QIANG (Autor:in) / ZHOU ZHIHONG (Autor:in) / CHENG LI (Autor:in) / ZHOU MENGLIN (Autor:in) / SONG ZIYUAN (Autor:in)
18.02.2022
Patent
Elektronische Ressource
Chinesisch
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