PURPOSE OF CRACKMETER MONITORING
The monitoring will be performed to monitor opening or closing of cracks of the neighboring existing buildings. On the basic of crack values and situation, the Consultant and Contractor can evaluate the stability of the neighboring buildings.
METHOD OF CRACKMETER MONITORING
The electromic gauges with accuracy of 0.01mm will be used for crack monitoring.
The crackmeter shall be installed at location of concern (existing cracks or susceptible spots) – the crackmeter shall be secured to the structure at both ends using anchor bolts in pre-drilled holes. The crackmeter shall be placed perpendicularly to the possible crack direction.
APPLIED STANDARD
- TCVN 9381:2012 “Guidelines for the evaluation of dangerous levels of building structures”.
