scholarly journals A Study on Establishing the Basic Direction for the Development of Korea's Highway Joint Area-Focused on the Hangdam-do Case

2020 ◽  
Vol 10 (1) ◽  
pp. 1-6
Author(s):  
Yongkyung Cho ◽  
◽  
Jaehwan Kim* ◽  
Keyword(s):  
Basic Direction ◽  
Joint Area

scholarly journals Anglistics as a Dialogic Discipline

2006 ◽  
Vol 3 (1-2) ◽  
pp. 233-244
Author(s):  
Werner Delanoy
Keyword(s):  
Final Section ◽  
The Other ◽  
Basic Direction ◽  
General Terms ◽  
Dialogic Approach

In my article; dialogue is suggested as a basic direction for Anglistics. Such a perspective results from a normative notion of dialogue based on a set of particular criteria. In general terms; a case is made for (self)-critical and respectful confrontation with other viewpoints within and beyond Anglistics to further develop existing positions and to create new forms of co-operation. While in the first two sections this concept is introduced and applied to the discipline of Anglistics; the final section is focussed on an area of major conflict in contemporary ELT debates. In fact; a dialogic approach will be suggested for dealing with two opposite tendencies; one aiming for standardization and the other for a humanistic form of education.

scholarly journals Perspectives of the contemporary usage of circular locomotive depot buildings

Vestnik MGSU ◽  
2016 ◽  
pp. 9-19
Author(s):  
Irina Vasil’evna Aksenova ◽  
Yuliya Igorevna Naumova ◽  
Vladimir Valentinovich Gridyushko
Keyword(s):  
Transport Infrastructure ◽  
Present Moment ◽  
Short Term ◽  
Basic Direction ◽  
Historical Building ◽  
Railway Stations ◽  
Industrial Heritage ◽  
Industrial Architecture ◽  
The City ◽  
Hotel Chain

Variants of reshaping the objects of the industrial heritage, including the buildings of transport infrastructure located in central districts of historical towns are analyzed in the article. The evolution of the development of depots for maintaining and repairing the locomotives is represented. The uniqueness of the complex of buildings of Nikolaevskaya Railway in Moscow, an integrated historical and architectural ensemble, is noted. At the present moment one of few preserved buildings is a circular depot in the center of Moscow. The loss of this unique specimen of industrial architecture of the middle of 19th century would be an irreplaceable loss for the cultural heritage of the nation. The only way of its rescue from full destruction is its restoration and inclusion in the contemporary life of the city. The method of possible variants of the contemporary usage of historical building-monuments of the industrial heritage is proposed, which secures their safety on the basis of self-repayment. The preferable variants for reshaping the building of circular depot in Moscow are considered on the basis of qualitative criteria. Keeping in mind the location of the depot near railway stations - the sources of the main contingent being in need of short-term rent - the variant of placing a hotel-touristic center in the depot was chosen. This corresponds to the basic direction of the State Program of the City of Moscow for the period of 2012-2016, which provides the development of the hotel chain at the expense of the reconstruction and the creation of the touristic infrastructure. The authors considered in the article the variant of usage of the depot as a multifunctional hotel complex gives the possibility to solve the problem of shortage of two-stars hotels in the center of Moscow and, what is very important, to preserve the monument in an undistorted appearance.

scholarly journals Management of enterprise economic security: sinergistical approach

2019 ◽  
pp. 30-33
Author(s):  
Liudmyla PETRENKO ◽  
Larysa IVANOVA
Keyword(s):  
Economic Theory ◽  
Control System ◽  
Dynamic Equilibrium ◽  
Modern Society ◽  
Economic Security ◽  
Economic Systems ◽  
Basic Direction ◽  
Exchange Information ◽  
Nonlinear Character ◽  
Dynamic Cooperation

One of main problems of modern society there is complex safety of the difficult systems of different nature. Today the problems of creation of the difficult nonlinear dynamic reliable systems go out on the first plan. It stipulates exceptional theoretical and practical meaningfulness of the use of methods of synergetics in a management the systems. An improvement of the existent theoretical and methodological going is near organization of control system by economic security of enterprise from position of sinergistical approach. An increase of multi-variant approach of development of the economic systems is reason of change of methodology of economic researches and a nonlinear economic theory comes on changing to the traditional economic theory. Invariants, non-linearity, coherentness and factorable synthesis, are the base concepts of sinergistical theory of management. Any socio-economic system presents by a soba complex of functional subsystems, that is bound by inter se the processes of intensive dynamic cooperation, exchange information. Application of synergetics showed in researches of economy, that most cases have an evolution direction of that through nonlinear character of connections in the system is determined by the action of insignificant factors basic direction of motion of the socio-economic systems, as a rule, informative, that prove in bifurcational processes. The condition of development and viability of any enterprise are maintenances of dynamic equilibrium, that are the aim of the system of economic security of enterprise — it’s attractor. By principles of management of enterprise economic security from positions sinergistical approaches are: complication, non-linearity, dynamic. The system of economic security of enterprise is base on principle of feed-back. Leaning on sinergistical approach, set forth raising of sinergistical synthesis of nonlinear control system by economic security. Exactly sinergistical effects that are characterized as management results in the systems cause the change of quality, and are the adequate instrument of providing of economic security.

scholarly journals Load carrying capacity of the eccentric joint in the truss made of open cross-sections

2018 ◽  
Vol 219 ◽  
pp. 02002
Author(s):  
Małgorzata Gordziej-Zagórowska ◽  
Elżbieta Urbańska-Galewska
Keyword(s):  
Numerical Analysis ◽  
Cross Section ◽  
Experimental Research ◽  
Cross Sections ◽  
Carrying Capacity ◽  
Load Carrying Capacity ◽  
Main Achievement ◽  
Joint Area ◽  
Load Carrying ◽  
Open Cross Section

The influence of eccentricity at intersections of truss members on the load carrying capacity of the truss joint is presented in the paper. The research truss elements were designed as cold-formed open cross section. Analytical calculations, numerical analysis and experimental research were conducted to reveal how the eccentricity affects the effort of material in the joint area. The results of analysis and investigations are compared and discussed. The main achievement of the tests carried out is statement that slender plane members of the compression chords are safe compared with the results of analytical calculations.

Microstructure and Impact Load Performance of Friction Stir Welded Joint of AZ31B Magnesium Alloy

2020 ◽  
Vol 866 ◽  
pp. 54-62
Author(s):  
Hong Feng Wang ◽  
Sheng Rong Liu ◽  
Xiao Le Ge ◽  
Jia Fei Pu ◽  
Lei Bao ◽  
...  
Keyword(s):  
Friction Stir Welding ◽  
Magnesium Alloy ◽  
Impact Load ◽  
Base Material ◽  
Welding Parameters ◽  
Loading Test ◽  
Az31b Magnesium Alloy ◽  
Friction Stir ◽  
Joint Area ◽  
The Impact

10mm thickness AZ31B magnesium alloy was used as the friction stir welding object in this study. Different welding joints were obtained by setting different friction stir welding parameters. Metallographic analysis and impact loading test were carried out on the joint area. The experiment results show that (i) when the rotational speed of the stirring head is 600rpm and the welding speed is 120mm/min, the microstructure of the joint has the characteristics of compactness, thinning, and large-area twinning, which is beneficial to improve the plasticity of the joint area; (ii) the impact load of the joint is the highest, but lower than that of the base material, which is 95.5% of the base material; (iii) the fracture of impact specimen presents ductile fracture.

An experimental study of the effects of moisture variations and gradients in the joint area in steel-timber dowel joints

Holzforschung ◽  
2008 ◽  
Vol 62 (2) ◽  
pp. 243-247 ◽  
Author(s):  
Johan Sjödin ◽  
Erik Serrano
Keyword(s):  
Experimental Study ◽  
Bearing Capacity ◽  
Climate Changes ◽  
Mechanical Load ◽  
Load Bearing Capacity ◽  
Load Bearing ◽  
Moisture Effect ◽  
Joint Area ◽  
Moisture Effects ◽  
Induced Stresses

Abstract This experimental study examines the influence of moisture variations on the load-bearing capacity of steel-timber dowel joints. The glulam specimens used to manufacture the joints were first exposed to controlled climate changes. After being stored in the climate chambers, holes were drilled and dowels were inserted. Then, the joints were loaded to failure. The main aim of this study was to investigate how and to what extent moisture variations and gradients in the joint area affects the load-bearing capacity in tension parallel to the grain. The load-bearing capacity was found to be reduced under these conditions when compared to reference joints. Moreover, the brittleness of the joints increased with the time the joints had been exposed to drying. Moisture-induced stresses and cracks in the joint area were found to be a possible explanation of the results. A similar interpretation was given in other studies where other structural timber elements have been studied. This raises an important question of how such moisture effects should be considered in design codes. One possibility is to include the influence of moisture-induced stresses in the k mod factor used in Eurocode 5. Another way could be to consider this type of moisture effect as an equivalent mechanical load case.

Theoretical Modeling of Steel Strip Reinforced Flexible Pipe With Swaging End Fitting by Taking Into Account Stress Concentration Effect

2019 ◽  
Author(s):  
Yifan Gao ◽  
Wei Chen ◽  
Yong Bai
Keyword(s):  
Stress Concentration ◽  
Internal Pressure ◽  
Steel Strip ◽  
Displacement Discontinuity ◽  
Concentration Effect ◽  
Elastic Model ◽  
Thin Wall ◽  
Burst Strength ◽  
Joint Area ◽  
Stress Concentration Effect

Abstract A new theoretical model was proposed to calculate the burst pressure of steel strip reinforced flexible composite pipes (steel strip PSP) based on the thin wall cylindrical shell theory and the squeeze pressure expression between layers was derived. The radial displacement discontinuity of pipe wall in pipe-end fitting joint area takes in account in this model which could result in Stress Concentration Effect (SCE) in reinforcement layers. The SCE is caused by swaging end fitting clamped tightly at the end of the pipe. The result of the hoop strain in the joint area calculated by this model is greater than the one calculated by the classic elastic model, which leads to relative conservative burst strength of the pipe. The hoop stress variation via internal pressure on innermost reinforcement layer is introduced to predict the burst strength of the pipe. As the stress in the joint area reaches its ultimate strength, the strain on the same layer in the point far away from this area (x→∞) is extracted and the corresponding internal pressure is obtained as the burst strength of the pipe. The calculated data from two models were compared with the experiment results and the proposed new model showed better accuracy than the classic elastic model. Final additional parametric studies were conducted, while the effect of the pipe diameter, the winding angle, the number and thickness of the reinforcement layer on the burst strength of the pipe were studied. Useful conclusions were drawn for the design and application of the steel strip PSP in offshore engineering.

scholarly journals Axial Compressive Behaviour of Square Through-Beam Joints between CFST Columns and RC Beams with Multi-Layers of Steel Meshes

Materials ◽  
2020 ◽  
Vol 13 (11) ◽  
pp. 2482
Author(s):  
Weining Duan ◽  
Jian Cai ◽  
Xu-Lin Tang ◽  
Qing-Jun Chen ◽  
Chun Yang ◽  
...  
Keyword(s):  
Axial Compression ◽  
Mechanical Performance ◽  
Concrete Strength ◽  
Volume Ratio ◽  
Design Criterion ◽  
Design Methods ◽  
Rc Beams ◽  
Compressive Behaviour ◽  
Joint Area ◽  
Cfst Columns

The axial compressive behaviour of an innovative type of square concrete filled steel tube (CFST) column to reinforced concrete (RC) beam joint was experimentally investigated in this paper. The innovative joint was designed such that (i) the steel tubes of the CFST columns were completely interrupted in the joint region, (ii) the longitudinal reinforcements from the RC beams could easily pass through the joint area and (iii) a reinforcement cage, including a series of reinforcement meshes and radial stirrups, was arranged in the joint area to strengthen the mechanical performance of the joint. A two-stage experimental study was conducted to investigate the behaviour of the innovative joint under axial compression loads, where the first stage of the tests included three full-scale innovative joint specimens subjected to axial compression to assess the feasibility of the joint detailing and propose measures to further improve its axial compressive behaviour, and the second stage of the tests involved 14 innovative joint specimens with the improved detailing to study the effect of the geometric size of the joint, concrete strength and volume ratio of the steel meshes on the bearing strengths of the joints. It was generally found from the experiments that (i) the innovative joint is capable of achieving the design criterion of the ‘strong joint-weak member’ with appropriate designs, and (ii) by decreasing the height factor and increasing the volume ratio of the steel meshes, the axial compressive strengths of the joints significantly increased, while the increase of the length factor is advantageous but limited to the resistances of the joint specimens. Because of the lack of existing design methods for the innovative joints, new design expressions were proposed to calculate the axial compression resistances of the innovative joints subjected to bearing loads, with the local compression effect, the confinement effect provided by the multi-layers of steel meshes and the height effect of concrete considered. It was found that the proposed design methods were capable of providing accurate and safe resistance predictions for the innovative joints.

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