Metal Roof Fault Diagnosis Method Based on RBF-SVM

Table 1

Main fault and causes of metal roof.

Fault forms	Fault causes	Expression form
Plastic deformation	Alternating loads cause damage accumulation	Deformation and decrease of wind-resistant
Lateral slip	Temperature load	Inner stress and lateral deformation
Longitudinal deformation	Alternating loads, especially the wind	Longitudinal stress and deformation
Bolt looseness	Alternating wind loads	Increase of longitudinal displacement