关键词: 无应力计, 套筒, 结构, 受力

Abstract: Current sleeve of non-stress meter has many defects so that it cannot guarantee the concrete unstressed. Calculation and analysis are conducted about the stress of non-stress meter sleeve and concrete using FEM. Calculation and comparative analysis of effects are conducted about stress transfer in concrete under different stress conditions, different depth of sleeve, different shape of sleeve and different direction of sleeve mouth. Then the improvement method is put forward which provides reference for the embedded method of non-stress meter.

Key words: non-stress meter, sleeve, structure, stress