The development and verification of seismic performance possible role as moment resisting frames connection is needed because rigidly-connected and assembled lightweight steel frame system is not easy to obtain the seismic performance at the same time.

Long span structures like space-structures have instability phenomenon, jump buckling or bifurcation. And these instability phenomenon responds very sensitivity, depend on the initial condition. In this study, define the 1-degree of freedom space structure and when model has beating load, analysis critical load of model using 3D contour map for load, variable , displacement in the axial. The analysis results, when  is 1.0, is able to see the lowest critical load and the resonance phenomenon.

From the past, space structure have been widely used as sports arenas, religious facilities. And the demand and research for retractable structure is increasing recently. Therefore, we classify the retractable mechanism which is divided according to the retractable method of structures and survey the present condition of retractable structures built around the world.

Using trapezoidal corrugated plates in shear reinforcing systems improves stiffness and flexibility in the deformation along the corrugation. However, shear buckling behaviors is difficult to predict the relationship between the corrugated shape. In this study, a cyclic loading test of the trapezoidal corrugated plate was performed to evaluate the effects of energy dissipation capacity were compared according to the test results.

The purpose of this study is to get analytic solution of space truss using homotopy perturbation. A homotopy perturbation was derived by formulating a governing equation for a space truss, and a semi analytical solution was obtained by homotopy perturbation. In conclusion, the analytical solution of the simple nonlinear model using the homotopy perturbation was compared with the numerical analysis result.

This study is to solve the structural optimization problem by a quantum-inspired harmony search algorithm. For the optimization, we suggest the mathematical modeling of the plane truss which is possible to minimum weight design. In its model, the cost function is minimum weight and constraint function consists of the stress.

In this study, trapezoidal corrugate plate were subjected to cyclic loading under displacement control. And then, results from the experiment, the behavioral characteristics and mechanism of energy dissipation were investigated. This result were different to the cumulative size of energy dissipation capacity in load-displacement curve. Based on these results, Influence of the shape is very large and it is determined the define an appropriate shape for the size.

This study aims to apply homotopy method to space truss composed of discrete members to obtain a semi-analytical solution. For the purpose of this research, a nonlinear governing equation of the structures is formulated in consideration of geometrical nonlinearity, and homotopy equation is derived. The result of carring out dynamic analysis on a simple model is compared to a numerical method of 4th order Runge-Kutta method(RK4).

The purpose of this study is to investigate the applicability of multi-stage homotopy perturbation method to shallow arches in order to obtain a semi-analytical solution. For this research purpose, a nonlinear governing equation of the arches was formulated and a homotopy equation was derived using the formulated differential equation. The result of a dynamic analysis on a symmetric mode and an asymmetric one was compared with the classical homotopy perturbation method and the 4th order Runge-Kutta method.

In this study, the shear buckling strengths of the trapezoidal and sinusoidal corrugated plates with the same self-load were compared, and their characteristics and tendencies were analyzed. In the preceding comparative study of corrugation shapes, the corrugation wave depth and the corrugation wave angle were the same. As these target, A linear buckling analysis was conducted, and the differences in the shear buckling mode and the buckling stress were analyzed.

This study aims to apply multistage homotopy perturbation method (MHPM) to SDOF space truss to obtain a semi-analytical solution. For the purpose, a nonlinear governing equation is derived in consideration of geometrical nonlinearity, and homotopy equation is formulated. The result of carrying out dynamic analysis on a simple model is compared to a numerical method of 4th order Runge-Kutta method (RK4), and the dynamic response by MHPM concurs with the numerical result.

This study analyze the buckling characteristics of trapezoidal and sinusoidal corrugation shapes with same weight. To do this, analyze the shear buckling characteristics through linear buckling analysis and on its theory.

This study conducted the minimum weight optimum design using the differential evolution and genetic algorithm of simple structure. And then, the optimization program was verified with the numerical analysis examples of fixed beams. As a result, the graphs of these two optimization programs increased similarly.

This study investigates the geodesic dome based on an icosahedron and development of joint modules that make up a dome structure in order to model the modular dome using the wood-plastic composite member with 70% of wooden fiber contests. The purpose of this work is used as a basis for verification of structural performance of WPC in the real structures.

Corrugated steel plates have been used in civil engineering applications such as buildings and bridges, and many studies. These corrugated plate has geometrical characteristic – accordion effect. This study analyzed the elastic shear buckling about geometric parameters of sinusoidal and trapezoidal corrugated plate.

Corrugated plate is occurrence that the local buckling, global buckling and interactive buckling because of the geometric properties. However, It was difficult to predict the shear buckling behavior. This study analyzed the elastic shear buckling about geometric parameters of sinusoidal and trapezoidal corrugated plate.

The development of QEA(Quantum-inspired Evolution Algorithm) and their engineering-problem applications have emerged as one of the most interesting research topics. These algorithms find optimal values with the operators such as quantum-gate by using quantum-bit superposed basically by zero and one. In this process, the balance between the two features of exploration and exploitation can be kept easily. So, this paper is to propose an optimum design program for truss system based on QEA and 17 bar plane truss model is adopted as numerical example.

The objective of this study is to analyse the dynamic stable and unstable behaviours of a space truss using an accurate solution obtained by the high-order Taylor method. Because numerical solutions can lead to incorrect analyses in the case of a space truss model due to the being parameters large, we analyse the solution’s behaviour using essentially an analytical solution obtained by the multi-step high-order Taylor method. In detail, the dynamic instability and buckling characteristics of the SDOF model under step, sinusoidal and beating excitations are investigated.

Large span roof structures require an analysis of their static and dynamic behavior depending on the physical parameters defining the structures. Therefore, it is highly desirable to estimate the parameters from observations of the system. However, the study of the behavior of such structures shows the existence of critical parameters. A small change in such parameters causes a significant change in the motion behavior. In this paper we study the parameter identification problem for shallow sinusoidal arches considering damping effect.

Corrugated plate is made that the local buckling, global buckling and interactive buckling occurs because of the geometric properties such as the accordion effect.Corrugated steel having such characteristics is shows a buckling characteristic different from the plate. However, It was a design by the basis of the shear buckling equation of plate. Therefore, this study was investigate the characteristics of the shear buckling mode and shear buckling stress of sinusoidal corrugated plate through a parametric study using the finite element method.