간행물
한국구조물진단유지관리공학회 학술발표대회 논문집
- 발행기관 한국구조물진단유지관리공학회
- 자료유형 학술대회
- 간기 반년간
- 수록기간 2012 ~ 2019
- 주제분류 공학 > 안전공학 공학 분류의 다른 간행물
- 십진분류KDC 531DDC 624
권호리스트/논문검색
2014 한국구조물진단유지관리공학회 봄 학술발표 논문집 (2014년 4월) 276건
141.
2014.04
서비스 종료(열람 제한)
Among Non-destructive tests Ultrasonic Pulse Velocity Method is identified as an efficient and simple method to estimate the mechanical characteristics of the material. In this study, Ultrasonic Pulse Velocity Method for Normal concrete were applied to geopolymer concrete specimens. Pressure waves, ultrasonic velocity and maximum frequency in these specimens were measured. similar to normal concrete, Initial ultrasonic velocity of geopolymer concretes reflected stress of geopolymer concretes, but maximum frequency bandwidth did not.
142.
2014.04
서비스 종료(열람 제한)
The dissipation capacity of wall to foundation connection for tilt-up conrete wall is investigated in this study. To evaluate the effects of addition steel bar, specimen was made and tested under cycle loading. Test results showed that connection details had the energy dissipation capacity at the using vertical reinforcement steel bar.
143.
2014.04
서비스 종료(열람 제한)
산업부산물인 폐유황의 재활용을 목적으로 개질 처리된 유황을 대상으로 콘크리트용 혼화재료로서의 개질 처리된 유황 액체와 분말을 콘크리트에 0%, 5%, 10%, 15% 외할 첨가하여 개질유황 액체와 분말의 첨가별 물리적 특성 및 내구성능을 평가한 결과를 고찰하였다.
144.
2014.04
서비스 종료(열람 제한)
This study is performed structural analysis by boundary condition of pile head. At result, proposed reinforcement length and calculation formula in Super Pretensioned and Reinforced Spun High Strength Concrete Pile
145.
2014.04
서비스 종료(열람 제한)
Besides its exceptional resistance to corrosion, Fiber Reinforced Polymers (FRP) present the advantage to develop high strength compared to its self-weight which highlighted it recently as a material that can replace fairly classical construction materials like steel and concrete. The emergence of glass fiber and the development of resin fabrication technology made it possible to reduce significantly the costs of FRP material and the emphasis given on the importance of life cycle cost (LCC) for structures after the 1980s opened its exploitation in the construction domain. In this paper, research trends of structural member development which is related to FRP material are briefly suggested.
146.
2014.04
서비스 종료(열람 제한)
In this study, pull-out tests were performed for evaluating tensile behavior of chemical anchors. Diameter and embedment length were considered as test variables. During the test, uplift load and vertical displacement of chemical anchors were measured. Maximum uplift load of 16kN was measured in chemical anchor having 21mm diameter and 300mm embedment length.
147.
2014.04
서비스 종료(열람 제한)
For friction-type anchor general, pull-out resistance is exhibited by only fixing length frictional resistance. In order to ensure sufficient pull-out resistance excessive length and number of anchor is required. Thereby, including pressure-type and hybrid-type anchor is required. However, the standards for friction-type anchor are established in most of the national standards but specific design method for pressure-type and hybrid-type anchor is not been established. In this paper, we review behavioral characteristics of the hybrid-anchor body expanded in two stages using finite element analysis under the underground condition.
148.
2014.04
서비스 종료(열람 제한)
Based on the study of pore structure of cement-free mortar, it was found that cement-free mortar mixed with Ca(OH)2 type alkali-activator had the lowest transmissivity on the mercury intrusion porosimetery and had the lowest chloride penetration rate on the rapid chloride penetration test.
149.
2014.04
서비스 종료(열람 제한)
This paper deals with an experimental study on the tensile performance of recently developed “FRP Hybrid Bars” by authors. The objective of this study is to investigate tensile strength of FRP Hybrid Bars. FRP Hybrid Bar uses the concept of material hybridization to increase elastic modulus to be used in concrete structures, especially for marine and port concrete structures. The effect of hybridization on tensile properties of FRP Hybrid Bars was evaluated by comparing the results of tensile test with those of non-hybrid FRP bars. The results of this study indicated that the elastic modulus of the hybrid GFRP bar was increased by up to approximately 5 to 204 percent by the material hybridization.
150.
2014.04
서비스 종료(열람 제한)
In this study, an equivalent circuit model of CNT-filled cement composites is proposed. Both the polarization effect of electrode/composite interface and the complex resistance effect due to dielectric property of CNT cement composite are considered in the proposed model. Effective of the proposed model will be experimentally validated.
151.
2014.04
서비스 종료(열람 제한)
In this study, AC/DC responses of CNT-filled cement composites are measured and compared. Based on the results, it is found that AC measurement method is more reliable to measure the electrical resistance of CNT-filled cement composites.
152.
2014.04
서비스 종료(열람 제한)
On this study, a compressive strength with variation of oxide aluminum contents on calcium aluminate cement used for particular purpose due to good properties is analyzed. Thus, the results propose future research direction.
153.
2014.04
서비스 종료(열람 제한)
When the prestress is introduced to a typical steel beam with wide flanges, the introduction efficiency of prestress is significantly low due to its large axial stiffness. In this study, the steel beam with discontinuous webs is developed to improve the efficiency of prestress introduced into top and bottom flanges by utilizing the accordion effect. The experiment and FE analysis are performed to verify the introduction efficiency of the prestress on the steel beam with discontinuous webs.
154.
2014.04
서비스 종료(열람 제한)
This paper describes the evaluate adhesion area effects on structural performance of structural sealants. In this experimental, glass panel thickness and initial construction depth of sealant are 12 and 5mm. Principle variable is addition of sealants : 5, 10, 15mm. Prior to add sealant, adhesion part carried out cover with primer. Test method is based on the bending test. Loading method is to put sand on the center of the glass panel in order to the wind load applied to the actual condition. Test results indicated that addition of sealants is not improve the peak load.
155.
2014.04
서비스 종료(열람 제한)
This research investigated analytically the effect of micromechanical properties on the fiber bridging behavior. Analysis results showed that the peak bridging stress and comprementary energy increase with decreasing chemical bonding and increasing frictional bonding and fiber length.
156.
2014.04
서비스 종료(열람 제한)
The purpose of this paper is to establish specifications, to provide design database for the construction of the sea pools(30m x60m x 1.5m). In case of water overflows by high waves, 3D-analysis by SAP2000 software is required for designing of sea pools in order to settle the problems that the degradation of the concrete durability.
157.
2014.04
서비스 종료(열람 제한)
A Study on Analysis of High Thermal Conductivity Concrete with Magnetite Aggregates and Steel Powder
This study is for development of high thermal conductive concrete and its mechanical and thermal properties are evaluated. Magnetite aggregates with volume ratio of 42.9%(max.) and steel powder of 1.5% are replaced with normal aggregate and their are evaluated. Several models for thermal conduction like ACI, DEMM, and MEM are compared with the test results and they are verified to reasonably predict the thermal conductivity with increasing addition of magnetite aggregates and steel powder.
158.
2014.04
서비스 종료(열람 제한)
On this study, carbonation rate and W/C ratio were estimated by collecting actual data of each carbonation depth and compression strength from inner wall, outer wall, stair hall, and balcony floor of certain remodeling apartments. Through above tests, this study can be reference data of the method of life time prediction for the apartments that subject to remodeling.
159.
2014.04
서비스 종료(열람 제한)
this study is experiment result of steel fiber reinforced concrete(SFRC) panel with flexural and impact resistance performance. The variables are the fiber volume fraction and aggregate size. The height and width of SFRC panels are 200 mm. The experimental results showed that flexural and impact resistant performance is improved by increased in steel fiber volume fraction.
160.
2014.04
서비스 종료(열람 제한)
This paper describes the structure performance of glass fiber-reinforced polymer (GFRP) shear connectors for insulated concrete sandwich panels (CSP). In this study, experiments are conducted to investigate the physical features of insulated CSP with GFRP shear connectors with varying shape and specification of GFRP shear connectors, and types of insulations. Test results indicate that developed GFRP shear connector has a significant effect on structure performance of insulated CSP.
