This study focused on the ultimate strength and curling effect on the strength of single shear bolted connection with austenitic sainless steel (STS201) using finite element analysis. The validation of finite element analysis was verified through the comparisons of ultimate strength and fracture mode between existing test results and numerical predictions. Curling (out-of-plane deformation) was observed in both test and analysis and it reduced the ultimate strength of single shear bolted connections with relatively long end distances. Strength reduction ratio caused by curling was estimated quantitatively by maximum 19%, 32%, respectively for specimens with edge distance, 48mm and 60mm compared with strengths of uncurled connections with restrained out-of-plane deformation.

Based on the study of considering thickness and diameter of the panel it was found that bigger the diameter of panel more efficient for support the water pressure and less displacement. It was found that rise depth had little influence for stress and displacement at small embossed panel. Also the biggest stress occured along the side of the embossed panel.

This study tested two RC columns with 500 mm square section under the constant axial loading and cyclic lateral loadings to examine the effectiveness of supplementary V-ties in enhancing the ductility of columns. The displacement ductility ratio of V-tie column was 1.5 times higher than that of the companion cross-tie columns.

Temporary structures are essential elements in the high-rise structures. They are various and one of them, prefabricated shoring system is very useful. Because it is easy to install prefabricated shoring system. But collapse disaster of prefabricated shoring system occurs every year. In most situations, design deficiency and lacking in strength of vertical member give rise to the collapse. In this study, buckling stability of prefabricated shoring system was analyzed in the design phase.

In this study, We evaluated the impact resistance of structural member using high performance fiber reinforced cementitous composite according to compressive strength. As the compressive strength of structural member using HPFRCC increased, the deflection of the structural member decreased. The highest resistance of deflection occurred at 180 MPa HPFRCC.

3 tests are performed to analyze the specific performance and pullout strength of an anchor bolt which has a greater contact area with the concrete. In the case of connecting bar which connect the non-symmetric nuts together, the pullout strength greatly increased than the normal bolt cases.

The minimum reinforced in RC flexural members is prescribed to avoid sudden and brittle in overload. The minimum reinforced depends on the geometrical and materials parameter of RC members. In this paper ,the influence of the geometrical and materials parameter on the minimum reinforcing steel beam has been investigated.

This paper presents the optimized design of Coal Silo structure using 2,400MPa PS strand and their economic benefits. Original structural design on the Coal Silo structure using 1,860MPa PS strand was reviewed in order to compare the values from the design with the optimization results.

In the case of railway bridges through the downtown section is required for noise reduction performance is excellent bridge type. According to this request, the bridge of the noise barrier installation is not required and low vibration is under development. This railway bridge is corrugated steel plates composite lower route bridge. Because the bridge cross-section wraps a train, noise is reduced. In this study, Using a commercial finite element analysis program, the dynamic stability evaluation is performed.

Based on the experiment, characteristic of local stresses and deformation in the anchorhead and wedges with prestressing of PSC slab was investigated in this study. As a result, local stresses exceeded yeild stress in the contacts of anchorhead and wedges and in the lower sides of anchorhead

Shell structure that is best used for the long span structure is a structure which can effectively resist against the external load. But these structure has instability like snap-through and bifurcation buckling, and it has a characteristic sensitive to the initial conditions. Therefore, to determine the analysis model of DDOF Space Truss and when the beating load was applied in model, we confirmed the changing results for height and load.

Steel pipe pile, which is used for the base of structures, need the reinforcing head method to prove enough dynamic performance. Currently there are various reinforcing head methods are used, but most of them have problems of structural complications and heavy charges. Thus, this study is to develop a reinforcing head method for steel pipe piles using hook type bending reinforcement, which can fix piles using nuts, and experimentally prove structural performances.

This paper presents an experimental study investigating the bond characteristic of steel bars (D13, D16) on fluidity concrete mixed with recycled marble powder under tensile loads. Experimental results showed that average bond strengths of D13 series specimens and D13 series specimens were 18.00MPa and 15.67MPa respectively, and that specimen with the larger diameter of rebar that adhesion strength had the lower bond strength.

The purpose of this paper is to evaluate the flexural strength and deflections developed of FRC beam with tensile bars composed of two layers combinations of steel bar, GFRP bar, and CFRP bar. As a test result, specimen with CFRP bars had the greatest maximum flexural strength. Specimens with FRP bars had more brittle failure behavior than only steel bars.

According to social needs, eco-friendly material for concrete structures has been developed in recent years. Hwang-toh is one of the eco-friendly architectural material and hwang-toh has been used by partial or complete replacement of portland cement. Pullout tests on deformed steel reinforcing bars with non-activated hwangtoh concrete are conducted in this paper. Experimental results, average bond strength of non-activated hwangtoh concrete was appeared to 7.3 MPa.

The goal of this experimental works is to evaluate the influence of shear strength according to shear span to depth ratio of RC deep beam with high-strength hooked bars. A total of 3 specimens were constructed and tested in three-point bending up to failure. The test variables included the shear span to depth ratio (0.75, 1.0, 1.25). Specimens had a failure mode of shear fracture. For specimen with shorter shear span to depth ratio, it showed that maximum shear strength was higher and that more brittle behavior occurred.

To calculate back the soil pressure acting on culverts, a technique for estimating the actual soil pressure has been established. The comparison between the design soil pressure and the real soil pressure is included.

Recently, wind turbine industry have received more attention than before. Many countries including South Korea focus on the offshore wind turbine because of its geographical advantage. However, domestic technique level is much lower than that of advanced countries such as Europe. In this study, analysis on development trend of offshore wind turbine and design standard in Europe is carried out to develop the original design standard.

The smart strand built-in with core wire were fabricated and submitted to test. The results showed that the application of smart strand at pier structures.

In this study, sensitivity analyses on the blast response of the steel-plate concrete(SC) walls subjected to explosive blast loads were carried out. In order to evaluate various cases effectively we set up the blast response evaluation procedure of SC walls, and developed the blast response evaluation program of SC walls using equivalent SDOF method. Finally, the effects of the various design parameters on the blast response of SC walls were investigated using the developed program.