Badania strunobetonowych płyt otworowych

• Autorzy: Ajdukiewicz A. , Kliszczewicz A. , Węglorz M.

Warianty tytułu

EN

Tests of pre-tensioned hollow-core slabs

• Konferencja: Konferencja naukowa Komitetu Inżynierii Lądowej i Wodnej PAN i Komitetu Nauki PZITB (52 ; 11-16.09.2006 ; Gdańsk-Krynica, Polska)
• Języki publikacji: PL

Abstrakty

EN

The paper presents the results of the tests of pre-tensioned hollow-core slabs under instantaneous loading. Two types of pre-tensioned HC slabs were tested, i.e. precast 320 mm thick element and the same element but with structural topping of concrete layer 50 mm in depth. The width of tested elements was 1,2 m and their span length was 6,9 m. There was no tie reinforcement applied in composite section, just basic surface cleaning and watering was made before casting of concrete. Each slab was prestressed by twelve seven-wire Y1860 strands, 12,5 mm in diameter. The slabs were tested up to failure in simply supported scheme. The tests proved the high load capacity, cracking resistance and stiffness at bending of prestressed HC slabs. Further improvement in general structural performance was observed for the composite element. The friction and adhesion between precast and topping concrete under external loads were satisfactory. There was no any delamination effect noticed during the test up to failure.

• Wydawca: Wydawnictwo Politechniki Gdańskiej
• Czasopismo: Zeszyty Naukowe Politechniki Gdańskiej. Budownictwo Lądowe
• Rocznik: 2006
• Tom: nr 59
• Strony: 81--88
• Opis fizyczny: Bibliogr. 3 poz., 9 rys., 4 tab.

Twórcy

autor

Ajdukiewicz A.

autor

Kliszczewicz A.

autor

Węglorz M.

• Politechnika Śląska, Wydział Budownictwa

Bibliografia

• [1] Ajdukiewicz A., Mames J.: Konstrukcje z betonu sprężonego. Kraków: Polski Cement Sp. z o.o. 2004, 588 s.
• [2] van Acker A.: Modern precast concrete structures. 5th International Conference. Analitical Models and New Concepts in Concrete and Masonry Structures, Gliwice - Ustroń 2005, 12-14 June, 8 s.
• [3] Tape W., Kennedy J., Madugula M., Collarino L.: Bearing capacity of grouted and ungrouted recessed ends in hollow-core slabs. Journal of the Precast/Prestressed Concrete Institute 2005, No 6, Vol. 50, s. 88-95.