Study of carrying capacity of compound girders made of logs with boundings on deaf cylindrical nog embeded in steel plates

Abstract

This article is devoted to the research developed at the Department of bridge span structures with composite girders made of logs, united to work together through the deaf cylindrical pegs embedded in steel plates as well as the development of methods of their calculation and perfection of structural and technological forms of superstructures. The peculiarity of the considered nog compounds is rigid clamping nogs in the coupled steel linings. By virtue of tough embedment of nogs in the seam coupling should expect an increase in carrying capacity of the connection due to the bending stiffness of the nog and due to local buckling under the wood nog. To account for the compliance of the considered nog connection a new method of calculation is developed. Offered research shows effectiveness of the decisions.

Keywords

• составные прогоны из бревен
• глухие цилиндрические нагели
• упругая податливость
• напряжения смятия нагельного гнезда
• несущая способность соединения