TecKnow of the day
Building Structural audit process
The Structural Audit is a process of assessing the present health of structure, identifying the loads & forces acting on the structure, identifying the effects of these loads and forces and finally assessing the stability & safety of the structure to withstand for its remaining life.
If the structural audits are carried out on regular intervals of @ 5 years, it helps to identify the problems in the initial stage. After structural audit, If the required repairs / Rehabilitation and preventive maintenance is carried out regularly, it substantially reduces the overall maintenance / repair cost of the structure.
The Structural Audit is carried out mainly for –
As a statutory requirement –
After every 5 years as per Inspector of factoriesAfter 30 years at every 5 years as per Municipal ActAfter 15 years at every 5 years and after 30 years at every 3 years as per Co-operative society ActForInsuranceFor Bank – MortgageForValuationStructure showing DistressProposed Additions, Alterations, Extensions in building / structureFor Damage assessment due to earthquake, fire, blast, vibration, corrosion etc.
Structural Audit survey includes following
Part A – Visual Survey –
Visual inspection of individual building / structures from inside and outside and to study present status of different structural members.Study of Architectural / RCC / Structural drawings Photographic SurveyNoting various observations such asLoad transfer system,Structural framing system,StructuraldeficienciesSettlement if any,Cracks in RCC members,Cracks in masonry / plaster,Leakages,Loads on structure,Defects in non structural elements etc.Identification of broad areas / locations in the structure requiring further detail investigation and for conducting various ND Tests
Part B – Non Destructive Evaluation –Conduct Non Destructive tests as required in detail visual surveyPart C – Repair & Rehabilitation Consultancy prepare detail report of visual inspection & various ND testsInterpretation of ND test results.Diagnosis& Root cause analysis of the problems / observationsprepare Repair & Rehabilitation scheme to make structure durable , healthy and to stand for a long life.Prepare technical specifications & draft tender document for repair and rehabilitation.Prepare detail estimate for the same.Scrutinize the tender documents.Periodically visits to inspect the workIssue Structural Stability Certification after completion of entire job.