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Structural monitoring system

  • US 5,421,204 A
  • Filed: 06/08/1993
  • Issued: 06/06/1995
  • Est. Priority Date: 06/08/1993
  • Status: Expired due to Term
First Claim
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1. The method of monitoring a structure, a bridge or building for determining the condition of the structure over time comprising the steps of:

  • Step a;

    analyzing mathematically the structure to determine a point of a substantial structural loading action;

    Step b;

    attaching a strain gauge to said analyzed point;

    Step c;

    establishing a baseline of strain gauge frequency output and amplitude output in response to said structural action as a result of an applied load;

    Step d;

    monitoring said action of the structure during use;

    Step e;

    recording strain gauge frequency output and amplitude output produced in response to said structural action detected by said strain gauge as a result of structure use;

    Step f;

    comparing said recorded frequency and amplitude output with said baseline output in order to determine the structural condition of said structure with the passage of time, andStep g;

    repeating steps d-f.

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