Experimental investigation for improving the performance of thin-walled tubular steel columns using CFRP strips

الملخص EN

The use of carbon fiber reinforced plastic (CFRP) strips to enhance the behavior of local stability for thin-walled tubular steel columns has been investigated experimentally.

Tubular steel columns specimens are made from welding thin plates at their edges.

The type of strengthen carbon fiber is a unidirectional woven fiber mat of mid strength which is a product of Sika coded as Sika Wrap -230C.

The CFRP is fixed using a resin Sikadure-330.

The study is focusing on the local stability of such members.

Many pattern of wrapping are suggested herein.

Recommendations have been drawn for the best pattern chosen to obtain the most efficient and economic strengthen pattern.