Opšta metoda za proračun bočnog i torzionog izvijanja elemenata čeličnih konstukcija

Beside standard procedure for stability design of structural elements in compression, bending, as well in compression and bending, Eurocode 3 offers posibility to make these calculations using finit element method through general method for lateral and lateral torsional buckling of structural elements. In this paper general method for lateral and lateral torsional buckling of structural elements is presented. Also, there is numerical example whose results are compared with results of Eurocodes alternative procedures and JUS

Uporedna analiza proračuna ekscentrično pritisnutih elemenata prema Evrokodu 3 i JUS-u

Evrokod 3 daje dva ravnopravna postupka proračuna interakcionih koeficijenata za proračun ekscentrično pritisnutih elemenata konstantnog jednodelnog poprečnog preseka. U ovom radu je data uporedna analiza rezultata proračuna ekscentrično pritisnutih elemenata prema Evrokodu 3 i važećem domaćem standardu. Interakcioni koeficijenti su sračunati prema alternativnim informativnim aneksima A i B, Evrokoda 3. Analizirani su rezultati šest numeričkih primera u kojima su varirane dužine elementa i vrednosti aksijalne sile pritiska

Opšta metoda za proračun bočnog i torzionog izvijanja elemenata čeličnih konstukcija

Beside standard procedure for stability design of structural elements in compression, bending, as well in compression and bending, Eurocode 3 offers posibility to make these calculations using finit element method through general method for lateral and lateral torsional buckling of structural elements. In this paper general method for lateral and lateral torsional buckling of structural elements is presented. Also, there is numerical example whose results are compared with results of Eurocodes alternative procedures and JUS

Uporedna analiza proračuna ekscentrično pritisnutih elemenata prema Evrokodu 3 i JUS-u

Evrokod 3 daje dva ravnopravna postupka proračuna interakcionih koeficijenata za proračun ekscentrično pritisnutih elemenata konstantnog jednodelnog poprečnog preseka. U ovom radu je data uporedna analiza rezultata proračuna ekscentrično pritisnutih elemenata prema Evrokodu 3 i važećem domaćem standardu. Interakcioni koeficijenti su sračunati prema alternativnim informativnim aneksima A i B, Evrokoda 3. Analizirani su rezultati šest numeričkih primera u kojima su varirane dužine elementa i vrednosti aksijalne sile pritiska

Stainless steel cross-section resistance according to continuous strength method

Continuous strength method is a contemporary approach to calculation of resistance of stainless steel cross-sections which has been recently developed at the Imperial College of London. The basis of the method is the continuous relation between the slenderness and strain capacity of a cross-section, nonlinear relation between the stress and strain and the strengthening effects of cold forming. In the paper are presented the fundamental rules for calculation of cross-section resistance according to continuous strength method; the comparative analysis of design resistance of the compressed cross-section was conducted through a numerical example according to this method and EN 1993-1-4

Stainless steel cross-section resistance according to continuous strength method

Continuous strength method is a contemporary approach to calculation of resistance of stainless steel cross-sections which has been recently developed at the Imperial College of London. The basis of the method is the continuous relation between the slenderness and strain capacity of a cross-section, nonlinear relation between the stress and strain and the strengthening effects of cold forming. In the paper are presented the fundamental rules for calculation of cross-section resistance according to continuous strength method; the comparative analysis of design resistance of the compressed cross-section was conducted through a numerical example according to this method and EN 1993-1-4

Nosivost na smicanje anker ploče sa grupom elastičnih čep moždanika

Joint between concrete structural member and steel or timber structural member can be realized with anchor plate which is being embeded in concrete structure during the erection. Anchor plate can be connected with concrete structural member using any standard anchor, with anchors made of ribbed reinforcement or, with group of standard head stud connectors as it is described in this paper. This paper also describes a procedure for calculation of anchor plate shear capacity with connection to concrete member realized with group of head stud connector

Nosivost na smicanje anker ploče sa grupom elastičnih čep moždanika

Joint between concrete structural member and steel or timber structural member can be realized with anchor plate which is being embeded in concrete structure during the erection. Anchor plate can be connected with concrete structural member using any standard anchor, with anchors made of ribbed reinforcement or, with group of standard head stud connectors as it is described in this paper. This paper also describes a procedure for calculation of anchor plate shear capacity with connection to concrete member realized with group of head stud connector

Novi koncept proračuna aluminijumskih konstrukcija prema Evrokodu

This paper describes the basic philosophy of the design aluminium structures according to the new European standard EN1999: Design of aluminium structures, Part 1-1: General structural rules. Comparison of the properties of aluminium as a material for structural elements is given in relation to the carbon steel. Special attention is given to the buckling effect in compressed parts of the cross section as well as the thermal effects of welding process, resulting in reduction of the mechanical properties in the heat-affected zones. These effects are illustrated through a brief numerical example

Experimental investigation of compressed stainless steel angle columns

This paper presents the experimental programme of an extensive research project that deals with analysing the behaviour of compressed stainless steel columns with equal angle sections. The research focuses on different material and geometrical parameters of pin-ended angle columns produced from austenitic and lean-duplex stainless steel alloys. To assess the influences of initial imperfections on column compressive resistance caused by different manufacturing procedures, three types of angle products are included: cold-formed, hot-rolled and laser-welded sections. In order to obtain both elastic and inelastic ultimate responses, including flexural and torsional-flexural buckling modes, the lengths and cross-section geometries of specimens are selected to cover non-slender sections and slender sections covering the entire wide slenderness range. The experimental programme covers all relevant tests: 15 tensile coupon tests, 15 stub-column tests, 48 overall buckling tests on slender columns and 2 residual stress tests, including measurements of initial geometric imperfections. The purpose of these experiments is to provide a reliable database to determine design rules for angle members and extend the scope of procedures currently codified in EN 1993-1-4 (2015), not only to conventional angle profiles, but also to contemporary products such as laser-welded angles