In the H-shaped steel girder filled with concrete in its both concave sides (CFH), the additional filled concrete weight raises the total steel amount of the building structure But in Europe, CFH beams have been applied with concrete reinforced as RC structural member The reason is considered that the following merits' weight is great, fireproofing protection is unnecessary, sub-beams are unnecessary, environmental vibration performance has advantage, etc The object of this study is the CFH beam filled with concrete including only studs and weld-steel-mesh In this paper, the evaluation method for the stiffness and strength of the CFH beam is proposed, based on the experimental results
