Complex stress state in prestressed hollow core slabs = Złożony stan naprężenia w sprężonych stropowych płytach kanałowych / Wit Derkowski, Mateusz Surma // W: Recent advances in civil engineering ... więcej

Complex stress state in prestressed hollow core slabs = Złożony stan naprężenia w sprężonych stropowych płytach kanałowych / Wit Derkowski, Mateusz Surma // W: Recent advances in civil engineering : building structures / ed. by Jacek Śliwiński ; Politechnika Krakowska im. Tadeusza Kościuszki. – Kraków : Wydaw. PK, 2015. – (Monografia / Politechnika Krakowska im. Tadeusza Kościuszki. Inżynieria Lądowa). – S. 11-27 : rys., tab. – Bibliogr. 18 poz., Abstr., Streszcz. – Seria gł.: Monografia / Politechnika Krakowska im. Tadeusza Kościuszki, ISSN 0860-097X ; 478

The paper presents the principles for design capacity verification of prestressed hollow core slab cross-sections working in a complex stress state. Since the specificity of this type of structure is the ... więcej

The paper presents the principles for design capacity verification of prestressed hollow core slab cross-sections working in a complex stress state. Since the specificity of this type of structure is the lack of any transverse reinforcement, the primary criterion for the capacity remains shear. The study presents the cases in which an element’s ribs are subjected to a bi-directional shear or combined action of shear and torsion or shear and bending, and relevant formulas are given. The paper also includes a new proposal for estimating unintended "negative" moment at the support, induced by partial fixing of HC slabs at ring beams.