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Visual Inspection Checklist

 

1.     Presence of Critical Columns:

 

a)     Design concrete grade 20

 

b)     Small-size, narrow, or slender columns[1]

 

c)      Columns subjected to bi-axial bending or bending about minor axis

 

d)     Columns unbraced along minor axis

 

e)     Void deck used as car park

 

 

 

 

2.    Signs of structural defects and deterioration:

 

a)   Spalling, cracks, or deformation

 

b)  Signs of damage by external force (eg. vehicular impact)

 

c)   Signs of differential settlement

 

 

 

 

3.    Recommendations:

 

a)     Need for full structural investigation

 

b)     Need for crash barrier around void deck columns

 

c)      Minor structural defects

 

d)     Non-structural defects

 

e)     Recommended remedial actions to be taken

 

 

4.    Termite Attack:

 

a)     Need for inspection by anti-termite specialist

 

b)     Need for termite treatment by anti-termite specialist

 

 

5.     Exposure to Aggressive environment

 

a)     Column immersed in water (eg. ground floor water tank, sea water, lakes, etc.)

 

b)     Aggressive chemical which may accelerate the deterioration of structural elements, particularly in industrial buildings

 

 

6.    Retainer walls and slope protection structures:

 

a)     Defects of retaining wall and other slope protection structures (eg. cracks, tilt, displacement, etc.)

 

b)     Signs of undesirable condition surrounding retaining wall (eg. tension cracks in soil, cracks in soil, weephole chokage, presence of big trees nearby, inadequate surface drainage etc.)

 

 

 

 

 

 

7.     Safety Barriers (i.e. parapets & railings):

 

a)     Any defects

 

b)     Any continuous handrail for full glass barriers

 

 

8.    Record of previous strengthening works done

 

 

9.    Standard Certification on first and last page of report

 

 

 

I, declare that I have addressed in my visual inspection report all the checklist items as checked marked above.

 

 

____________________                      __________________          

Signature                                                                    Date                                                                                                                                                                                                                                                               

 

 

____________________________

           (Name)

 


 

[1] As a guide, small size or narrow columns are defined as having minimum width less than/equal to 300mm.

 

 

 

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