A MACRO-ELEMENT MODEL FOR THE NONLINEAR ANALYSIS OF MASONRY MEMBERS INCLUDING SECOND ORDER EFFECTS

2014 ◽  
Author(s):  
A. Penna ◽  
A. Galasco
Keyword(s):  
Nonlinear Analysis ◽  
Element Model ◽  
Second Order ◽  
Order Effects ◽  
Macro Element ◽  
Second Order Effects

Estimation of Second-Order Effects for Pole-Type Structures

2000 ◽  
Vol 1740 (1) ◽  
pp. 151-156 ◽  
Author(s):  
Edgar Nunez ◽  
Fouad H. Fouad
Keyword(s):  
Nonlinear Analysis ◽  
Traffic Signals ◽  
Second Order ◽  
Order Effects ◽  
Simplified Approach ◽  
Bending Stresses ◽  
Pole Type ◽  
Second Order Effects ◽  
Factor C ◽  
Highway Signs

The design of pole-type structures for highway supports requires computation of second-order effects induced by the interaction of vertical gravitational and transverse wind loads. The 1994 Standard Specifications for Structural Supports for Highway Signs, Luminaires, and Traffic Signals provides two methods to account for those second-order effects. The first method uses a simplified approach by introducing a factor, CA, into the combined stress ratio equation. The second method requires the computation of the exact bending stresses by means of a nonlinear analysis. Most structural design codes specify simplified methods for the evaluation of second-order effects to facilitate the design of structural members by using the forces obtained in a first-order static analysis. Therefore, simplified methods must be accurate to be considered an adequate alternative to a more sophisticated analysis. The purpose of this study was to determine the accuracy of the simplified method by using the CA factor to estimate the second-order effects for pole-type structures. An analytical study that included 241 pole configurations was conducted to evaluate the CA factor. Exact solutions were computed by using a computer program capable of performing second-order analysis. The study indicated that for typical pole-type structures, the results obtained with the CA factor were highly conservative. On the basis of the results, a modified expression for the CA factor is proposed. Results obtained by use of the modified expression for the CA factor were within 10 percent of those obtained by use of the “exact” nonlinear analysis.

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

Second-order effects in proton solution endor

1984 ◽  
Vol 109 (4) ◽  
pp. 398-403 ◽  
Author(s):  
J.C. Evans ◽  
A.Y. Obaid ◽  
C.C. Rowlands
Keyword(s):  
Second Order ◽  
Order Effects ◽  
Second Order Effects

scholarly journals Statistical analysis of second order effects variation with the stories height of reinforced concrete buildings

2017 ◽  
Vol 10 (2) ◽  
pp. 333-357
Author(s):  
D.M. OLIVEIRA ◽  
N.A. SILVA ◽  
C.C. RIBEIRO ◽  
S.E.C. RIBEIRO
Keyword(s):  
Reinforced Concrete ◽  
Statistical Analysis ◽  
Second Order ◽  
Order Effects ◽  
Reinforced Concrete Buildings ◽  
First Order ◽  
Concrete Buildings ◽  
Ideal Situation ◽  
Second Order Effects ◽  
The Ideal

Abstract In this paper the simplified method to evaluate final efforts using γ z coefficient is studied considering the variation of the second order effects with the height of the buildings. With this purpose, several reinforced concrete buildings of medium height are analyzed in first and second order using ANSYS software. Initially, it was checked that the (z coefficient should be used as magnifier of first order moments to evaluate final second order moments. Therefore, the study is developed considering the relation (final second order moments/ first order moments), calculated for each story of the structures. This moments relation is called magnifier of first order moments, "γ", and, in the ideal situation, it must coincide with the γ z value. However, it is observed that the reason γ /γ z varies with the height of the buildings. Furthermore, using an statistical analysis, it was checked that γ /γ z relation is generally lower than 1.05 and varies significantly in accordance with the considered building and with the presence or not of symmetry in the structure.

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