DSpace コレクション: 1999-03
http://hdl.handle.net/11133/122
1999-032024-03-29T13:08:04Z多曲線近似履歴モデル
http://hdl.handle.net/11133/1090
タイトル: 多曲線近似履歴モデル
著者: 青木, 徹彦; 鈴木, 森晶; 田中, 智宏
抄録: A multi-curve fitting model for a steel pier hysteretic curve is developed The scheme of the curve fitting is separated for the phase before and after the ultimate strength An quadratic equation is defined in the local coordinate at the hysteretic curve having the largest curvature in each cycle By using this model, saving the cost for the computer calculation using elasto-plastic finite displacement program is expected and also simple treatment in the hybrid test is considered.1999-03-30T15:00:00Z鋼管を用いたねじりダンパーの開発および性能に関する実験的研究
http://hdl.handle.net/11133/1091
タイトル: 鋼管を用いたねじりダンパーの開発および性能に関する実験的研究
著者: 青木, 徹彦; 鈴木, 森晶; 遠藤, 輝好
抄録: Constructing the structure antiseismic experiment center in Aichi Institute of Technology is to introduce the seismically isolated device the seismic isolation bearing of rubber and the damper of torsion make used of steel tube. In the results of experiment, we gave a cyclic experiment of the damping part of the seismically isolated device. In result, we obtained large the deformation ability and the wave damping ability.1999-03-30T15:00:00Z各種溶液浸漬下におけるコンクリートのアルカリ骨材反応に関する研究
http://hdl.handle.net/11133/1092
タイトル: 各種溶液浸漬下におけるコンクリートのアルカリ骨材反応に関する研究
著者: 皿井, 剛典; 森野, 奎二; 岩月, 栄治
抄録: The damage of concrete structure due to alkali-aggregate reaction (AAR) has been occurring in each place. Especially, it newly increases by the use of the de-icing salts such as sodium chloride. In this paper, AAR concrete prisms were made with reactive cherty aggregate. Total alkali contents of the concrete were adjusted in the quantity of 3,6,9kg/m^3 alkali as Na_2O eq. by the addition of NaOH reagent. Concrete prisms were stored at 40℃ and not lower than 95% RH, in various kinds of solution such as 1M NaCl, 1M CaCl_2,1M NaOH, 1M KOH, 1M Na_2SO_4 and 1M MgSO_4 solution, artificial sea water and city water. Expansion behavior of the AAR concrete prisms was investigated, and effects of NaCl and other solutions on AAR were discussed on the basis of experimental results. The expansion of the AAR concrete prism was accelerated by 1M NaCl solution and 1M Na_2SO_4 solution.1999-03-30T15:00:00Z円形断面を有するRC部材のせん断挙動
http://hdl.handle.net/11133/1093
タイトル: 円形断面を有するRC部材のせん断挙動
著者: 邱, 洪興; 山田, 和夫; 酒向, 靖二
抄録: The theory of shear behavior for RC circular members proposed in this paper is based on the diagonal compression field theory. The aggregate interlock of cracked section and the dowel action of longitudinal steel are ignored in the model. The influence of non-uniform of stirrup strain is discussed and it is thought that the influence is negligible. According the model, the shear stress-shear strain relationship for circular members can be predicted. For ascending branch, predicted curves show a good agreement with test curves. For specimens with light stirrups, there is difference between theoretical curve and test curve in descending branch. The theory predicts that the angle of diagonal compression will vary with shear stress. Before the yield of stirrup, the inclined angle will increase as stress increase; and will decrease after the stirrup have yielded. While concrete strain has reached peak strain, the inclined angle will increase once again. The shear strength equation proposed in this paper which includes the effect of axial force is expressed in a simple form which is convenient to use, and is consistent with one which does not include axial force.1999-03-30T15:00:00Z