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Anchor-Bolt-Yield-Type Exposed Column-Base under Variable Axial-Force and Bending
Get PDFapplication/pdfAn experimental study on non-slip-type exposed column bases proposed by the authors, subjected both to cyclic horizontal loadings and to variable axial forces in the limits of compression, was made to make clear bending moment characteristics of the column bases and to propose models of restoring force characteristics. In addition, the same experiments on conventional exposed column bases were conducted to show the effectiveness of the proposed column bases. The following conclusions were drawn from the experimental results: 1)The restoring force characteristics of the non-slip-type column bases become linearfrom-origin-type under variable axial forces, 2)The column bases sustain the self-centering performance reducing residual deformation of a building after an earthquake.departmental bulletin pape
Managemant and Making Experience Typed Educational Tools for Basic Structure Engineering
Get PDFapplication/pdfA lot of students of our department don’t fully study physics and mathematics in the high school. Therefore, some problems occure, one of which is for them to be unable to understand mechanics in education of civil engineering. They are not able to image the concrete mechanics. We try to make and operate the experience-typed educational tools for the basic structure engineering as one of the methods of solving the problem. Four kinds of tools are made and are used in “Practice of Urban Engineering”, which is given the fourth semestar. These are as follows: (1)the stress and the strain, (2)the section shape and the deflection, (3)the three dimensional image for the bridge, and (4)the structure of the supporting point. A lot of students feel the necessity of the experience-typed learning tools according to the results of the questionnaire conducted after they studied it.departmental bulletin pape
An Expedient Evaluation Method for Warp Deformation Behavior of Laminated Beam Consisting of Viscoelastic Materials in Cooling Process
Get PDFapplication/pdfThis paper is intended as a proposal for a simplified evaluation equation that simply predicts the warp deformation behavior arising when the thermal load was given to a viscoelastic laminated beam consisting of epoxy resin and FR-4 substrate. The validity of the equation was verified by comparing its solution with the exact solution based on linear viscoelastic theory and the experimental values. The proposed simplified evaluation equation is composed of the glass transition temperature, the rubber transition temperature, the elastic modulus and the linear thermal expansion coefficient of the component material. In this study, it was clarified that the warp deformation behavior of the viscoelastic laminated beam could be simply predicted by using the proposed simplified evaluation equation where the elastic modulus is divided into three regions such as glassy state, leathery state and rubbery state.departmental bulletin pape
Surveillance Study on Traffic Convenience of Public Traffic in Housing Complex
Get PDFapplication/pdfPeople have selected their transportation matched with the transportation condition in the region in daily life. And the demand for traffic varies with the city size of Japan, thetis, the scale of a metropolitan area, a sphere of the regional central city, a local metropolitan area, and the city. It is roughly divided into an automobile traffic and public traffic. In addition, the central area of Hiroshima City located in the sphere of the regional central city has a geographical feature that is surrounded by hills, and consists of the delta, and the proportion of a smooth part is small. Therefore, a lot of slope residential quarters where hills were cut open exist in the suburb. However, it is clear in the public transportation facility in an inside advanced by aging and the present slope residential quarter that local populace’s traffic circumstance will become inconvenient in the future. In this research, the convenience of public traffic in a slope housing complex is investigated from two about a public, traffic side and the user side. The target region has about 11000 people and a very large-scale slope residential quarter, where we made the questionnaire survey concerning traffic for the hill housing complex Misuzugaoka. Misuzugaoka understands the traffic realities of the resident of the hill housing complex, and consideration concerning resident’s traffic is understood by this questionnaire survey. The purpose of our research is to show what the residents at Misuzugaoka showed do for the present traffic of the hill housing complex and what traffic showed be appropriate for the region, based on the questionnaire survey. Moreover, the present public transportation facility easy for senior citizen to use. Then, Misuzugaoka objectively shows whether the service level of the public transportation facility in the hill housing complex is appropriate according “Arc View GIS”.departmental bulletin pape
Traffic Awareness Investigation by Questionary Survey in Housing Complexs
Get PDFapplication/pdfPeople have to drive their own cars in the suburban area of a regional hub city, because the service level of the public transportation is lower than that of the central area of the city. However all most all one people there can not drive their private cars as they please there. And the traffic service for private cars, is not satisfactory in transportation to children, students, senior citizens, handicapped persons and people who do not have their private cars or driver’s license. The aim of this paper is to evaluate the service level of public transportation in Itsukaichi district of Hiroshima City, which is a commuter town. We evaluated the service level of public transportation in Itsukaichi district the sight and quantitatively by using Arc View GIS and the model of an existing research, by the overall index that contains fare, time, frequency, transfer resistance and punctuality, regurding the total performance as “Movement” including not only traffic performance but also on foot.departmental bulletin pape
Analysis of Two-Wheel Inverted Model and Its Application to the Education of Electronic Control
Get PDFapplication/pdfHiroshima Institute of Technology has been teaching integrated circuit designs and semiconductor processes since 1989. We made the lecture system about the fabrication of pMOS and CMOS FET using semiconductor processing and testing apparatus at Kitakyushu Science and Research Park for students. To instruct an application of electron device, analysis of Two-wheel inverted model was applied to the education of the electronic control.departmental bulletin pape
Legenden einer Reise (1)
Get PDFapplication/pdf翻訳：「ある旅の伝説」オイゲン・ゴットロープ・ヴィンクラー著departmental bulletin pape
Experimental Study on Shear Strength for Joint of the Floor Slab in Existing RC School Buildings with Low-strength Concrete
Get PDFapplication/pdfThe investigation on seismic evaluation of existing reinforced concrete school building made it clear that the earthquake performance in this building is scarce. Therefore, A plan was made to construct the seismic retrofit for this building. In this research, we experimented with joint of the floor slab in an actual reinforced concrete school building to verify the validity of the seismic retrofit. From the test result, Shear strength for joint has been understood.departmental bulletin pape
Restoring Force Characteristics of Braced Frame
Get PDFapplication/pdfA conventional brace member buckles in compression and shows slip behavior in tension. The authors proposed a non-compression brace without buckling and slip. Experimental studies were carried out on non-compression braced frames to clarify restoring force characteristics of X-type or K type of braces. In this paper, an experimental study was performed on portal frames with exposed column bases to verify influence of an axial force of the brace on performance of the column basedepartmental bulletin pape
Method of Schoolchildren’s Experiencing the Gear Creation in Engineering Curriculum
Get PDFapplication/pdfThis paper describes a method of making the involute gear for primary schoolchildren. In the industrial course of the university, the students learn the gear creation. But, all students may not understand the principle of the gear generation. The reason is because movement of the rack cutter and the gear material is complicated. Therefore in this study, we developed a method that even primary schoolchildren could understand the principle. And using this present method, the primary schoolchildren can easily produce a gear. This method was applied to primary schoolchildren, then it was confirmed that they could produce a gear easily.departmental bulletin pape