標準號：DIN EN 1738-1998
中文標準名稱：蒸氣淬火氣孔混凝土制非承重加強部件鋼應力測定
英文標準名稱：Determination of steel stresses in unloaded reinforced components made of autoclaved aerated concrete; German version EN 1738:1998
標準類型：Q72
發(fā)布日期：1999/12/31 12:00:00
實施日期：1999/12/31 12:00:00
中國標準分類號：Q72
國際標準分類號：91.100.30
適用范圍：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.