Timber as structural material in national and european building codes

Abstract

Summary. Structures of solid and glued timber have high popularity in the world. To provide the competitiveness of national building industry on the international market there is ongoing process of implementation of European design standards in Ukraine. The very first step on this direction was an acceptance of current state document on timber structures design [1], on which replacement the new ДСТУ-Н Б В.2.6-184:2012 «Structures of solid and glued timber. Design Guide» was prepared with included rules according to European code called Eurocode 5 [2]. Implementation of European standard in national design practice foresees harmonization of provisions of this standard with national codes. Ft the same time harmonization foresees not only transfer eurostandard rules into national but gradual replacement national codes by European. Objective. To analize the approaches to phisical and mechanical characteristics of structural timber determination according to national Ukrainian and European standards  of timber structures design. Results. There is the rsults of analize of the approaches to phisical and mechanical characteristics of structural timber determination according to national Ukrainian and European standards of timber structures design called Eurocode 5, which now is being implementated in Ukraine. The impossibility of momentary transfer in timber structures design to Eurocode 5 without classification of timber growing on Ukraine territory by strength according to its volumetric weight is proved. There are given position-finding data on quality and strength assessment of timber growing on Ukraine territory considering average width and quantity of annual zones. Practical value. Given data will profurther harmonization of normative regulations of Eurocode 5 with national building code.