Malé testy pro návrh spřažených plechobetonových desek

Small-Scale Test for Composite Steel-Concrete Slab Design

conference paper

Czech

Load bearing capacity of composite slab is very often governed by their shear bearing capacity. Design of new types of sheeting according to nowadays building codes is burdened by necessity of performing full-scale laboratory bending tests which is expensive and time consuming. Usage of small-scale shear tests presents a less-expensive alternative; however shear tests do not include all the aspects affecting the bearing capacity of bended slab. A recalculation procedure is therefore needed. Slip-block test procedure uses test arrangement which enables to obtain coefficient of friction and effect of mechanical interlock separately. This results in relatively simple method which enables to calculate load bearing capacity of composite slab for different load arrangements. Small-scale tests are not normalized therefore it is necessary to be performed in proper way in order to obtain correct results. Test results from two different laboratories are being compared in this paper.

Load bearing capacity of composite slab is very often governed by their shear bearing capacity. Design of new types of sheeting according to nowadays building codes is burdened by necessity of performing full-scale laboratory bending tests which is expensive and time consuming. Usage of small-scale shear tests presents a less-expensive alternative; however shear tests do not include all the aspects affecting the bearing capacity of bended slab. A recalculation procedure is therefore needed. Slip-block test procedure uses test arrangement which enables to obtain coefficient of friction and effect of mechanical interlock separately. This results in relatively simple method which enables to calculate load bearing capacity of composite slab for different load arrangements. Small-scale tests are not normalized therefore it is necessary to be performed in proper way in order to obtain correct results. Test results from two different laboratories are being compared in this paper.

Composite slab, prepressed embossment, small-scale test, slip-block test, mechanical interlock, friction.

Composite slab, prepressed embossment, small-scale test, slip-block test, mechanical interlock, friction.

HOLOMEK, J.

2014

30. 1. 2014

Vysoké učení technické v Brně

Brno

978-80-214-4851-3

16. odborná konference doktorského studia JUNIORSTAV 2014

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6

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