日本建築学会技術報告集
Online ISSN : 1881-8188
Print ISSN : 1341-9463
ISSN-L : 1341-9463
13 巻 , 26 号
選択された号の論文の90件中1~50を表示しています
材料施工
  • ―保護塗装の効果と耐久性に関する20年のモニタリング試験結果―
    御手洗 泰文, 稲冨 敬, 大池 武, 守屋 正裕, 小山 智幸
    2007 年 13 巻 26 号 p. 389-394
    発行日: 2007/12/20
    公開日: 2008/08/01
    ジャーナル フリー
    In this paper, we describe the study of the monitoring test using the full-size simulated models related to durability of coating and effect of surface coating of concrete for preventing penetration of the salts transported by sea breezes. First we study the effects of factors influencing durability against the concrete which coated and uncoated. Next, we have the result of the concrete properties, chloride contents and carbonated thickness. Finally we conduct the properties of concrete durability (chloride contents and carbonated thickness etc.) up to 20 years age and the method of monitoring test using the full-size members simulating general part of the real structures.
  • 環境配慮型セメントを用いたコンクリート充填鋼管造 に関する施工技術の開発コンソーシアム
    2007 年 13 巻 26 号 p. 395-400
    発行日: 2007/12/20
    公開日: 2008/08/01
    ジャーナル フリー
    Applicability of high-strength/high fluidity concrete using eco cement to environment-conscious CFT was examined. As a result, the following conclusions were obtained. (1) The high-strength/high fluidity concrete can be made by using eco cement. (2) The amount of the chlorine ion of this concrete can be measured by the bleeding water gathered at 60 min. after mixing. (3) Core strength of high-strength/high-fluidity concrete using eco cement is almost the same as the case to use ordinary Portland cement. (4) Elastic modulus of concrete using eco cement can be estimated by the expression of JASS5.
  • 高巣 幸二, 松藤 泰典
    2007 年 13 巻 26 号 p. 401-404
    発行日: 2007/12/20
    公開日: 2008/08/01
    ジャーナル フリー
    The dry brick masonry method has been limited to a simple wall plan that is the straight line and rectangular, etc. In this study, the layout logic of a curved wall and a bay window wall for the dry brick masonry method was examined. And the construction experiment of a special formed wall was done, and the feasibility of a curved wall and a bay window wall was examined. The conclusions are as follows. The layout logic of a curved wall is that the bolt hole is allocated on the circular arc by 120mm pitch, the starting point and the terminal are on the grid center, circular arc length becomes the multiple of 120, and the number of bolt holes at intervals becomes an even number. It was able to be confirmed that a curved wall and a bay window wall of the dry brick masonry method were good at the masonry by the construction experiment.
  • 稲井 栄一, 高橋 和雄, 山本 大介, 石井 克侑
    2007 年 13 巻 26 号 p. 405-410
    発行日: 2007/12/20
    公開日: 2008/08/01
    ジャーナル フリー
    The authors have been developing low-rise reinforced concrete masonry buildings with the wall thickness of 150mm, for the purpose of the increase of inner space of buildings, the decrease of building weight, and the usage of the standard building module of 300mm. In order to realize the buildings, compressive behaviors of fully grouted concrete masonry prisms, using newly developed small-size units with the strength of 40N/mm2 class and grout concrete of the strength of 40-60N/mm2, were investigated. Special pre-mixed cement mortal was used for the joints to obtain high out-of-plane bending performance.
  • 手塚 基広, 松井 勇, 逸見 義男, 守屋 哲夫
    2007 年 13 巻 26 号 p. 411-414
    発行日: 2007/12/20
    公開日: 2008/08/01
    ジャーナル フリー
    The water-proof test method of placing joint and cracking parts of concrete under high water pressure is proposed for evaluating the under ground concrete structure. The shape and size of concrete specimen, the high water pressure test apparatus and the leading crack apparatus are developed. The effects of the period of placing joint, the type of water stop material, the kind of waterproofing membrane with cracking at its behind on the water proof performance ware tested under the high pressure.
    The test results are shown clearly differences in type of material and kind of construction specification. The proposed test method can evaluate the water proof performance of under ground concrete structure under high water pressure.
  • 高梨 成次, 安達 洋, 中西 三和
    2007 年 13 巻 26 号 p. 415-420
    発行日: 2007/12/20
    公開日: 2008/08/01
    ジャーナル フリー
    Many tower cranes were damaged by the Hyogo-ken Nanbu earthquake in 1995. There were two kinds of serious damage types. But the strength of those damaged tower cranes corresponded to the design code. The causes of these damages were examined by the numerical analysis simulation. The reason for the cause that damage grew up was that the seismic force amplified with the building was input to the tower crane. Therefore, the damage of tower cranes connected with the building was serious. However, the seismic performance of the tower cranes improves by the friction dampers installed in the stays.
  • 長谷川 哲也, 畑中 重光, 谷川 恭雄, 長谷川 直司
    2007 年 13 巻 26 号 p. 421-426
    発行日: 2007/12/20
    公開日: 2008/08/01
    ジャーナル フリー
    As for historic structures, aged deterioration such as weathering is conspicuous on the surface of brick and stone structures.
    The purpose of this study is to devise a tester which can measure surface strength distribution of structures by slight-destructive inspection. As the first step, a tester has been devised experimentally, and the material and the form of the drill bit have been determined by the basic experiments. As a result, we found that the most suitable quality of the meterial for a bit tip was a diamond, and column type one was desirable judging from the stability of the drill speed. A surface strength test using this diamond bit on an actual terra cotta has demonstrated the possibility of definite evaluation of the relative strength and thickness of the glaze, and the relative strength of the foundation. Evaluation of the absolute strength of materials will be discussed in the following steps.
  • 長谷川 寿夫, 加茂 雄宇太, 北村 奈津子
    2007 年 13 巻 26 号 p. 427-430
    発行日: 2007/12/20
    公開日: 2008/08/01
    ジャーナル フリー
    In recent years, external insulation building is chiefly constructured to the cold district. But it is easy to be deteriorated variously about siding materials. One of the main causes is thought that temperature change of siding materials by being exposed to the sun. State of dry and wet of siding materials changes by the season and weather is also the main cause. This research clarified that relation between wall composition and expansion and shrinkage of the siding materials in external insulation building.
構造
環境工学
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