• Earthquakes and Structures
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• 제3권3_4호
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• pp.271-295
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• 2012

This paper presents the solution scheme of using the continuous formulation of 1-D linear member for the dynamic analysis of structures consisting of axially loaded members. The context describes specific applications of such scheme to the verification of experimental data obtained from field test of bridges carried out by a microwave interferometer system and velocimeters. Attention is focused on analysis outlines that may be applicable to in-situ assessment for cable-stayed bridges. The derivation of the dynamic stiffness matrix of a prismatic member with distributed properties is briefly reviewed. A back calculation formula using frequencies of two arbitrary modes of vibration is next proposed to compute the tension force in cables. Derivation of the proposed formula is based on the formulation of an axially loaded flexural member. The applications of the formulation and the proposed formula are illustrated with a series of realistic examples.

• 한국건축시공학회지
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• 제8권2호
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• pp.113-119
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• 2008

Recently, fiber reinforced polymers(FRP) composite materials are used extensively in the rehabilitation of concrete structural members. A main application is to wrap beams and columns using the continuous fibers sheets to improve their strength and ductility. The corner chamfering affects significantly the performance of the continuous fibers sheets, and could lead to environmental problem with waste and dust. The main purpose of this paper is to verify the effect of corner conditions on the strength of the continuous fiber sheets, and to introduce new attached components which can avoid environmental problem. A total of 15 specimens were tested and carefully checked for three types of continuous fiber sheets(carbon, glass, and aramid) and three types of corner conditions(non-chamfering, chamfering, and device attaching). It is proved that the devices proposed in this research have some capabilities to use for RC member. But additional research will be needed for commercializing.

• Structural Engineering and Mechanics
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• 제6권2호
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• pp.185-200
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• 1998

Space truss design usually involves two main assumptions: that truss members are pin-ended, and compression members possess brittle post-buckling characteristics. The validity of these assumptions in the design of a new group of space trusses with continuous chords and eccentric joints is questionable. With chord member continuity and the consequent improvement in compression member behaviour, current design practice might be too conservative. In this paper, it is shown that substantial improvements in overall truss strength have resulted when the true member end conditions are considered, thus indicating potential savings in truss weight with considerable magnitudes.

• Architectural research
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• 제2권1호
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• pp.47-54
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• 2000

The critical load of a continuous compression member was determined by the beam-analogy method. The proposed method utilizes the stress-analysis results of the analogous continuous beam, where imaginary concentrated lateral load changing its direction is applied at each midspan. The proposed method gives a lower bound error of critical load and can predict the span that buckles first. The effective length factors for braced frame columns can be easily determined by the present method, but result in the upper bound errors in all cases, which can lead to a conservative structural design.

• 한국안전학회지
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• 제28권2호
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• pp.55-59
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• 2013

The analytical model was constituted to evaluate the flexural strength of UHPFRC(ultra high performance fiber reinforced concrete) member. The analytical approach was attemped to study the effect of the joint and the result compared with the experimental study to verify the analytical model. The calculated value tends to underestimate about 23%~25% in comparison with the experimental result of the jointed test member because the bond stress between precast UHPFRC and cast-in-place UHPFRC surface is not considered in the analytical model. But in the case of the continuous test member, the analytical model provides reasonable results for the flexural strength of UHPFRC member.

• 한국정보시스템학회지:정보시스템연구
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• 제29권2호
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• pp.197-220
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• 2020

Purpose Cloud computing that provides a new paradigm for a firm's use of information technology is getting a lot of attentions by practitioners. However, the empirical investigation on members of organizations using cloud computing are insufficient. Therefore, this study aims to examine the capabilities and perceptions of organizational members that should be considered important for successful cloud computing implementation. Design/methodology/approach This study proposed factors related to the capabilities and perceptions of members of the organization, and examined the relationship between these factors and successful cloud computing implementation and performance. In addition, this study tested the moderating effect of leadership and continuous supports through empirical analysis. The proposed hypotheses were verified through structural equation modeling using SmartPLS3.0 with the collected data. Findings The results showed that four factors except 'member behavior control' had a positive effect on successful cloud computing implementation, which had a positive effect on performance. In addition, leadership and organizational continuous support have been shown to strengthen the relationship among factors.

• 한국식생활문화학회지
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• 제31권2호
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• pp.141-148
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• 2016

The purpose of this study was to understand the influence of employees' commitment (affective, normative, continuous) in the food & beverage departments of deluxe hotels upon job satisfaction and analyze the moderating effects of the leader-member exchange on the relationship between organizational commitment and job satisfaction. Based on a total of 403 food & beverage employees, this study reviewed the reliability and fitness of the research model and verified two hypotheses. The hypothesized relationships in the model were tested simultaneously by using SEM. The proposed model provided an adequate fit to the data, ${\chi}^2=635.160$ (p< .001), df=112, GFI= .845, NFI= .851, CFI= .874. SEM showed that organizational commitment (affective: ${\beta}=428$; normative: ${\beta}= .293$; continuous: ${\beta}= .342$) showed a positive significant influence on job satisfaction. However, the findings demonstrate that the leader-member exchange did not moderate the relationship between organizational commitment and job satisfaction. Limitations and future research directions are also discussed.

• 한국건축시공학회지
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• 제2권4호
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• pp.99-104
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• 2002

Recently, the continuous fiber materials has become more important materials to repair and to reinforce concrete structural members. Continuous fiber meshes are effective for shear and confining reinforcement and provide excellent durability when combined with high strength mortar The purpose of this study is to verify the relationship between concrete strength and the ductility of inner concrete confined laterally by continuous fiber meshes. For this study, Experimental studies were conducted by compressive members using the cast frame of high strength mortar and continuous fiber meshes. Therefore, the result shows that compressive strength and ductility has improved according to the amount of the fiber meshes, and that the lateral confined effect of members with 3- or 4-axis mesh arrangement is bigger than that of members with 2-axis mesh. These data have to be used to verify the characteristic of concrete structure members reinforced continuous fiber mesh.

• Asian Journal of Business Environment
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• 제5권4호
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• pp.73-81
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• 2015

Purpose - This study investigated the effects of leaders of national universities on faculty creativity. The study examined transformational leadership and creativity theories and investigated self-efficacy, the parameter between transformational leadership and creativity, to examine its moderating effect and provide policy implications for national universities. Research design, data, and methodology - This study built four hypotheses based on the literature review, and tested these using a survey methodology. The collected data were analyzed using SPSS 15.0. Result - At the national universities, the results were as follows: charisma of leaders had a positive influence on member creativity; intellectual stimulus of leaders had a positive influence on member creativity; and, individual consideration of leaders had a positive influence on member creativity. Therefore, leaders' transformational leadership had a positive influence on member creativity. Conclusion - Creativity is thought to be important for organizational survival and continuous development at rapidly changing education administrations. Educational administration leaders should exercise transformational leadership to develop member creativity. Member self-efficacy, which had a mediating effect on creativity, requires leadership to develop it.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2023년도 봄 학술논문 발표대회
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• pp.233-234
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• 2023

This paper confirms the application sites of dry coupler technology, which is a direct connection method using screw threads, and Unlike wet couplers, this method can stand on its own without proof support and continuous work on the upper part. Furthermore, concludes with personal considerations to improve constructability.