Len Hollaway’s scientific contributions

... The present study is carried out to investigate a variety of strengthening approaches based on the available research recommendations and to propose an appropriate strengthening method for built-up steel C channels. The available investigations in the area of strengthening approaches for improving the structural performance of the open cross-section structural steel members are sufficient and the recommendations provided[14][15][16][17][18][19][20][21][22][23][24][25]were used to arrive at an optimal strengthening mechanism for structural steel C channels. The recommendations are: 1. Depending on the accessibility, CFRP strengthening can be provided by partial or by a full wrap of the structural elements. ...

Reference:

Strengthening of unsymmetrical open channel built-up beams using CFRP

... Strengthening steel structures using adhesively bonded fiberreinforced polymer (FRP) plates has been extensively studied in recent years because of the advantages this method offers; primarily the ease and speed of installation, and it is lightweight compared to welded or bolted steel plates. The majority of studies focused on the use of carbon FRP (CFRP) plates because of their higher Young modulus, which can approach or exceed that of steel (Miller et al. 2001;Zhao and Zhang 2007;Harries and El-Tawil 2008;Fam et al. 2009). Conversely, glass fiber-reinforced polymer (GFRP) plates are considerably lower in cost than CFRP plates and their lower elasticity modulus can be compensated for by the fact that GFRP plates are typically thicker ) than CFRP sheets. ...

Reference:

Elastic Analysis of Steel Beams Strengthened with GFRP Plates Including Preexisting Loading Effects