This paper presents a multipurpose set-up system called “test bed” for large shaking table tests. The test bed is composed of multistory box-trusses with concrete mass of inertia supported by linear slider bearings in each layer. It supports self-weight, and gives horizontal inertial force to the specimen frame when they are connected together and placed on the shaking table. In this paper, shaking table tests with a single-story sample frame with beam-end damper are carried out. Their results are compared with the analytical results and the performances of this set-up is discussed.

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本論では、文献から「散歩」に関する研究の拡がりを明らかにするために、都市空間や都市デザインとの関係性の観点から95編の文献を整理した。散歩の定義や目的として、実社会の要請に応えるために「都市活動」が定着した時期が転換期といえる。また、研究の拡がりとしては、人を対象とした研究は蓄積されているものの、空間や文献を対象とした研究、時系列比較や国際比較の研究の蓄積が少ない。目的を持って歩くことが実際の都市空間に適用されることで、「いかに人を（より）歩かせるか」という計画の視点が組み込まれている。しかし、「人はなぜ無目的に歩くのか」という原論が求められた初期の方が、自由で大胆な発想が、散見された傾向がある。

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Ultimate properties of seismic isolation rubber bearings under horizontal biaxial loading are investigated with scaled-model testing.
It was observed that the high-damping rubber bearings was twisted by torque generated by damping factor under biaxial deformation, and showed shear-break in smaller shear strain range than in uniaxial loading.
Additionally, finite element analysis (FEM) was conducted to simulate the twisting deformation and local stress and strain. The results showed good agreement with test results, and indicated the possibility of FEM as an effective tool for prediction of failure strain of isolators in biaxial loading.

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As buildings have become higher, it is likely to find the wind loads that is equal to or even greater than the design seismic loads. Therefore, it is important to estimate responses of high-rise buildings under fluctuating wind force. This paper presents contribution rate of higher mode wind response of multi-mass system for high-rise buildings by using a modal analysis in elasto range. Then, it shows that the wind responses are usually separated into the low and high frequency components, and the wind responses can be expressed as sum of them. The agreement between the predicted value based on coupling of two components and results of time-history analysis was finally confirmed.

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In this paper, a fast numerical procedure to analyze fundamental behaviors of concrete materials by the mesoscopic simulation is proposed. Two improvements make the proposed procedure fast. One of them is a numerical procedure based on the multiscale method in which the microscopic displacement can be calculated from the prescribed macroscopic stress directly. Another one is an effective parallel solver for the linear system derived from the image-based finite element method. The numerical properties and efficiency of the proposed procedure are alsoevaluated on a PC cluster.

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The 2011 off the Pacific coast of Tohoku earthquake generated the main shock with long-duration and long-period and the magnitude 7.0 class aftershocks many times in a wide range of eastern Japan. The horizontal displacement response of the isolated building caused by them was about 0.4 m. They damaged seismic isolated dampers such as steel dampers and lead dampers. This paper presents to evaluate responses of isolated buildings and the damage of seismic isolated dampers by results of response analysis using simple isolated building model under bi-axial horizontal loading in main shock and aftershocks observed at 6 points from Aomori to Tokyo.

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Lyofolic acid was reinvestigated by silica gel column chromatography and it was found to be contaminated with two minor components, one of which was identified as deacetyllyofolic acid. The molecular formula of lyofolic acid was revised as C₃₈H₆₂O₁₁·2H₂O. Alkaline hydrolysis of lyofolic acid gave a deacetylated compound, C₃₆H₆₀O₁₀·3H₂O, which was proved identical with one of the minor components. Hydrolysis of lyofolic acid with methanolic hydrogen chloride yielded lyofoligenic acid, C₃₀H₅₀O₅, and glucose, and the signal of acetoxyl group disappeared in the nuclear magnetic resonance (NMR) spectrum of its aglycone. Genic acid contains one cyclopropane ring which has an isolated methylene group [chemical formula], two secondary and one tertiary alcohols, and one carboxylic acid group. Isopropylidene derivative was formed with acetone and p-toluenesulfonic acid between one secondary and one tertiary hydroxyl groups, [chemical formula].

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This report presents studies on the construction performance of connecting buckling restrained braces in RC frames and the decrease in the tension of anchor PC rods. First, a construction test considering actual building conditions was carried out. From the test result, problems in actual construction were identified and the possible solutions were examined. In addition, long-term measurement of the tension in the anchor PC steel rods was conducted for one year. From the results of the long-term measurement, the decrease in the tension of PC rods was analyzed, and the method for designing anchor PC rods was suggested.

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The PRESTRESSED CONCRETE MILD-PRESS-JOINT method was proposed for controlling earthquake damage to buildings. It is expected to effective in future seismic designs. So far, Experiments were carried out on ┼ -shaped and ├ -shaped frames designed using this method. As a result, it clarifies the mechanical properties such as hysteresis characteristic, behavior of joint rotation prestressing strand for compression beam-column. However, there have been almost no experimental studies about column-foundation on this method. Thus, experiments of beam-column-foundation in frame structure which has foundation part and frame of cruciform using this method were carried out not only to obtain behaviour of joint rotation by prestressing steel bar compressing column-foundation and damege controlled effect against column-foundation, but also to study on the influence mechanical behaviour of the column-foundation to the frame with PRESTRESSED CONCRETE MILD-PRESS-JOINT. In addition, two-dimensional finite element analyses were carried out to investigate the stress state of the beam-column-foundation in frame structure.

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Reduction of the horizontal deformation capacity of elastomeric isolation bearings under bi-directional loading has been one of the major concerns since that such a phenomenon was observed for high-damping rubber bearings. Using a newly constructed loading machine, a series of tests of lead rubber bearings (LRBs) were conducted to investigate their detailed mechanical characteristics under horizontal bi-directional deformation in the paper. The influences of the configurations, such as shape of cross section, diameter of a lead plug and aspect ratio, on the bi-directional behavior were carefully examined. Simulation analyses were also conducted to predict the bi-directional behavior of LRBs.

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The leaves of Lyonia ovalifolia, supplied from Nepal, were extracted successively with haxane, benzene, ethyl acetate, and methanol and each of the extracts was filtered, when a precipitate formed, and separated by silica gel chromatography. Compounds detected were aliphatic higher hydrocarbons, esters, β-sitosterol, ursolic acid, oleanolic acid, maslinic acid, quercetin, eriodictyol, astilbin, β-sitosteryl β-D-glucoside, glucose, and xylose. Distribution of these components are almost the same as that of Lyonia ovalifolia var. elliptica in Japan.

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