Method and system for monitoring building structure collapse vibration when fire hazard occurs

A technology for building structures and monitoring systems, used in vibration testing, machine/structural component testing, measuring devices, etc.

Inactive Publication Date: 2009-01-28
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But so far, there is no precedent for testing the vibration characteristics of obje...

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  • Method and system for monitoring building structure collapse vibration when fire hazard occurs
  • Method and system for monitoring building structure collapse vibration when fire hazard occurs
  • Method and system for monitoring building structure collapse vibration when fire hazard occurs

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Embodiment Construction

[0032] The present invention will be further described below in conjunction with accompanying drawing and specific embodiment:

[0033] combine figure 1 , we can know the working process of the building structure collapse monitoring system in case of fire. The vibration sensor 1 is set on the floor 2, and it measures the original data of the vibration characteristics. After passing through the signal amplifier, signal filter and signal acquisition and processing system, the real-time vibration characteristic parameters of the building structure are obtained, and finally the vibration characteristic parameters are input into the monitoring software for safety monitoring. determination.

[0034] 1, the present invention is implemented according to the following steps:

[0035] (1) Measuring point layout. The points with large displacement and deformation in the structural components of the building are used as the characteristic points of the vibration test, such as figure ...

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Abstract

The invention provides a system and a method for monitoring the collapse vibration of a building structure in a fire. The monitoring system essentially consists of a system for testing vibration characters and relevant software for monitoring the collapse. The system for testing the vibration characters consists of a high-temperature-resistance vibration sensor, a matched signal amplifier and a matched smart signal collecting and processing analyzer. The monitoring software is utility software independently researched and developed and based on C++ Language, which can forecast the functional mode of the building structure according to the parameters of the vibration characters input to the system for testing the vibration characters. Therefore, when a fire happens, the functional mode of the building structure can be know well so that fire-fighting time can be accurately seized for avoiding heavy casualties and property losses. The development of the system can help to know well of the vibration characters of the building structure, caused by the fire, forecast and monitor the collapse of the building and provide important bases for fire-fighting.

Description

(1) Technical field [0001] The invention relates to the technical field of disaster prevention and mitigation of building structures, in particular to a monitoring system for monitoring the collapse and vibration of building structures during a fire. (2) Background technology [0002] With the development of science and technology, engineers and technicians can carry out the vibration characteristics test and data collection and processing caused by wind, earthquake and other excitations. Vibration testing mainly uses sensors, amplifiers, and display or recording instruments to measure the displacement, velocity, acceleration and other movements of important parts of the engineering structure under excitation, so as to understand the working state of the structure. Through the measurement of the amount of movement, the dynamic characteristics of the structure can be understood, such as natural frequency, natural mode shape, damping and dynamic stiffness and other characteris...

Claims

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Application Information

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IPC IPC(8): G01M7/02
Inventor 董毓利张大山房圆圆
Owner HARBIN INST OF TECH
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