Spatial structure vibration response capturing and monitoring system based on earthquake early warning

Abstract

The invention discloses a spatial structure vibration response capturing and monitoring system based on earthquake early warning. The spatial structure vibration response capturing and monitoring system is composed of an earthquake early warning monitor, a seismometer, a computer working base station and a magnetic type wireless vibration acceleration sensor. The earthquake early warning monitor captures earthquake P-wave signals and sends earthquake triggering information picked up by the seismometer to the working base station, and the base station issues a series of commands such as vibration response data acquisition, recording, compression and return to the wireless vibration acceleration sensor. Finally, the base station uploads site vibration and steel structure response data to the cloud platform, and building safety assessment analysis is carried out. According to the characteristics of different propagation speeds of earthquake P waves and S waves and large span and wide distribution of a large-span building, by combining an earthquake P wave pickup technology and wireless communication, long-term and all-weather monitoring of the ground vibration condition of the position where a large-span space structure is located is functionally realized, and comprehensive capture of the vibration response of the large-span space steel structure after an earthquake is realized.

Description

technical field [0001] The invention relates to the technical field of building steel structure monitoring, in particular to a large-span space steel structure earthquake early warning and vibration response monitoring system. Background technique [0002] Both ordinary people and property owners are very concerned about the damage of buildings under earthquake disasters, especially for large-span spatial structures with dense crowds. Once a strong earthquake occurs and people are not evacuated in time, the consequences will be disastrous. This makes the demand for large-span space steel structure earthquake early warning system more and more intense. In addition, due to the randomness of earthquake motion and the characteristics of communication line obstacles due to the large number of internal components of large-span space steel structures, it is very important to establish a set of earthquake early warning and early warning systems with high seismic identification accur...

AI Technical Summary

Problems solved by technology

[0006] Existing building earthquake monitoring systems rely on the accuracy of P-wave pickup. Threshold triggering is usually used as the trigger condition, and the seismic monitoring points are connected through cables for data aggregation. This working method is only suitable for buildings with convenient wiring.

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