DIN EN 1738-1998 蒸气淬火气孔混凝土制非承重加强部件钢应力测定

标准号：DIN EN 1738-1998
中文标准名称：蒸气淬火气孔混凝土制非承重加强部件钢应力测定
英文标准名称：Determination of steel stresses in unloaded reinforced components made of autoclaved aerated concrete; German version EN 1738:1998
标准类型：Q72
发布日期：1999/12/31 12:00:00
实施日期：1999/12/31 12:00:00
中国标准分类号：Q72
国际标准分类号：91.100.30
适用范围：The document specifies a method of determining the steel stresses in longitudinal bars at midspan of unloaded reinforced components made of autoclaved aerated concrete. At midspan of an unloaded reinforced component the concrete cover, the corrosion protective coating and part of the sourrounding AAC are removed from at least three longitudinal bars, taking care to disturb the internal stresses as little as possible. Then strain gauges are glued to the surface of the bars. The steel stress is calculated from the difference of the strain gauge readings taken a) when the bar is under stress while still being embedded in the component and b) when the bar is free from external stresses after it has been separated from the component.