Composite members have become popular for medium and high rise buildings. This paper presents the results of an experimental and analytical investigation of the partially-encased composite steel beams with and without web openings. The constant parameters included in this study are the cross-sectional area of the specimen. the distribution of web openings in the encased steel beam. https://smokeysmountainfurnitureoutlets.shop/product-category/formal-seating-set/