Experimental research of slab cast over precast joists with prestressed reinforcement

• Main Authors: Koyankin Aleksandr Aleksandrovich, Topakova Aleksandrovna Topakova
• Format: Article
• Language: English
• Published: Moscow State University of Civil Engineering (MGSU) 2016-03-01
• Series: Vestnik MGSU
• Subjects: cast-in-place and precast beam floor; load-bearing ability; stiffness; crack resistance; prestressed reinforcement
• Online Access: http://vestnikmgsu.ru/index.php/archive/article/download/3102

At the present time reinforced concrete is the main construction material in civil and industrial construction. Cast-in-place and precast construction is gradually becoming a more widespread type of house-building, but still there is a lack of data, including experimental data, which allows evaluating the stress and strain state of a construction of a slab cast over precast joists. Experimental research of stress and strain state of slab cast over precast joists with prestressed reinforcement was carried out. An experimental model of a fragment of a hybrid precast/cast-in-place building was produced and tested (reduction scale 1:6). The experimental investigations of slab cast over precast joists with prestressed reinforcement proved that the construction solution of the framework offered in the previous works of the authors possess good stiffness, crack-resistance and bearing capacity. It well fits for constructing the slabs of long spans in residential and public buildings.