scholarly journals ANALYSIS OF SECOND-ORDER EFFECTS EVALUATION OF STEEL FRAMES BEHAVIOUR

2020 ◽  
Vol 12 (1) ◽  
pp. 8-14
Author(s):  
Raminta Venslavavičiūtė ◽  
Kęstutis Urbonas ◽  
Vaidotas Šapalas
Keyword(s):  
Structural Engineering ◽  
Steel Frame ◽  
Second Order ◽  
Order Effects ◽  
Rotational Stiffness ◽  
Framed Structures ◽  
Calculation Results ◽  
Steel Frame Structures ◽  
Second Order Effects ◽  
Rigid Joints

The evaluation of second-order effects of steel framed structures can provide different analysis results than using linear analysis methods. In various structural engineering literature were distinguished different methods of analysis: taking or without taking into account second-order effects. It depends on the sensitivity to the horizontal actions. The slenderer the structure, the more sensitive it is to horizontal actions. Using nonlinear methods, the sensitivity of steel frame to second-order impact is considered. This paper shows the importance of evaluations of the second-order effects in behaviour of steel frame structures. Performed investigations reveal the influence of the rotational stiffness of the joints to the behaviour of whole framed structure. Calculation results show that decreased flexibility of the semi-rigid joints increase sensitivity of the framed structure to the second-order effects and vice versa. The identified interdependence between the sensitivity to the second-order effects and the flexibility of the semi-rigid joints highlights the importance of evaluation of such dependencies.

scholarly journals Analysis of second-order effects of constructions behaviour

2019 ◽  
Author(s):  
Raminta Venslavavičiūtė ◽  
Kęstutis Urbonas
Keyword(s):  
Steel Frame ◽  
Second Order ◽  
Frame Structure ◽  
Frame Structures ◽  
Order Effects ◽  
Rotational Stiffness ◽  
Frame Building ◽  
Steel Frame Structures ◽  
Second Order Effects ◽  
Rigid Joints

This paper presents the importance of the second-order effects in behaviour of steel frame structures. EN 1993-1-1 were distinguished three main methods: taking / without taking into account second order effects depending on the sensitivity of horizontal design effects and tolerance. Using these methods, the susceptibility of steel frame structures to second-order impacts is considered in accordance with EN 1993-1-1. The study was performed taking into account also the rotational stiffness of the joints of the frame structure. In this way, trying to determine the effect of the joint on the rotational rigidity makes the frame structure more sensitive to second order impacts. It is also considered a semi-rigid joints effects the general frame-tailed P-Δ and the second row stress. This establishes the link between the effects of the second-order and the semi-rigid joints in the overall (general) analysis. Frame-building sensitivity makes it possible to compare and measure the importance of such dependencies.

scholarly journals The effects of large displacements on the earthquake response of tall concrete frame structures

1980 ◽  
Vol 13 (4) ◽  
pp. 317-328 ◽  
Author(s):  
Peter J. Moss ◽  
Athol J. Carr
Keyword(s):  
Analytical Techniques ◽  
Second Order ◽  
Order Effects ◽  
Large Displacements ◽  
Framed Structures ◽  
Concrete Frame ◽  
Inelastic Analysis ◽  
Second Order Effects ◽  
Lateral Displacements ◽  
Geometric Effects

Many analytical techniques have been developed for the inelastic analysis of multi-storey framed structures subjected to earthquake excitations. Most of these analyses have ignored the influence of the geometric effects due to the large lateral displacements on the response of the structure. However, there has been an increasing interest recently in these second order effects and, in particular, their consequences for the design of the column members in the frame. This paper describes the modification of an inelastic frame analysis to include the effects of large displacements and then the application
to three typical New Zealand concrete structures subjected to a variety of earthquake excitations. Comparisons are then made with results obtained from analyses ignoring these effects. The results are then reviewed in order to determine the nature of the problems, to determine when these second order effects should be considered and discusses methods of limiting these displacements.

Resistive switching kinetics and second-order effects in parylene-based memristors

2020 ◽  
Vol 117 (24) ◽  
pp. 243501
Author(s):  
Anna N. Matsukatova ◽  
Andrey V. Emelyanov ◽  
Anton A. Minnekhanov ◽  
Aleksandr A. Nesmelov ◽  
Artem Yu. Vdovichenko ◽  
...  
Keyword(s):  
Resistive Switching ◽  
Second Order ◽  
Order Effects ◽  
Second Order Effects

Study of Second‐order Effects of Steel Posts Supporting Rockfall Flexible Barriers

ce/papers ◽  
2021 ◽  
Vol 4 (2-4) ◽  
pp. 2249-2254
Author(s):  
Jian‐Wei He ◽  
Lei Zhao ◽  
Yao‐Peng Liu ◽  
Siu‐Lai Chan
Keyword(s):  
Second Order ◽  
Order Effects ◽  
Second Order Effects ◽  
Flexible Barriers

Pavlovian conditioning of sexual arousal: First- and second-order effects.

1985 ◽  
Vol 11 (4) ◽  
pp. 598-610 ◽  
Author(s):  
Edward Zamble ◽  
G. Marilyn Hadad ◽  
John B. Mitchell ◽  
Tim R. H. Cutmore
Keyword(s):  
Pavlovian Conditioning ◽  
Sexual Arousal ◽  
Second Order ◽  
Order Effects ◽  
Second Order Effects

On second order effects in a glavanic cell

1979 ◽  
Vol 100 (1-2) ◽  
pp. 607-624 ◽  
Author(s):  
M. Sluyters-Rehbach ◽  
J. Struys ◽  
J.H. Sluyters
Keyword(s):  
Second Order ◽  
Order Effects ◽  
Second Order Effects
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