Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
High-ductility self-recovery cement-based composite column
The invention discloses a high-ductility self-recovery cement-based composite column, which comprises a steel pipe and a self-recovery cement-based material poured in the steel pipe, wherein the self-recovery cement-based material comprises cement mortar, SMA fibers and carbon black, and the mass ratio of the SMA fibers to the carbon black is 32:5-96:10. The high-ductility self-recovery cement-based composite column can bear large deformation and is excellent in ductility and anti-seismic property; and carbon black is doped into a matrix and is combined with conductive SMA fibers, so that theconductivity of the matrix is improved, and the cracking condition can be sensitively detected by analyzing the change of resistivity after the material is cracked and recovered.
本发明公开了一种高延性自恢复水泥基组合柱，包括钢管和浇筑于钢管内的自恢复水泥基材料，所述自恢复水泥基材料包括水泥砂浆、SMA纤维和炭黑，所述SMA纤维与炭黑的质量比为32:5～96:10。本发明能够承受较大变形，延性和抗震性能优异；将炭黑掺入基体中，结合可导电的SMA纤维，既提高了基体的导电性能，也能够通过分析材料开裂后和恢复后电阻率的变化能够灵敏检测开裂情况。
High-ductility self-recovery cement-based composite column
The invention discloses a high-ductility self-recovery cement-based composite column, which comprises a steel pipe and a self-recovery cement-based material poured in the steel pipe, wherein the self-recovery cement-based material comprises cement mortar, SMA fibers and carbon black, and the mass ratio of the SMA fibers to the carbon black is 32:5-96:10. The high-ductility self-recovery cement-based composite column can bear large deformation and is excellent in ductility and anti-seismic property; and carbon black is doped into a matrix and is combined with conductive SMA fibers, so that theconductivity of the matrix is improved, and the cracking condition can be sensitively detected by analyzing the change of resistivity after the material is cracked and recovered.
本发明公开了一种高延性自恢复水泥基组合柱，包括钢管和浇筑于钢管内的自恢复水泥基材料，所述自恢复水泥基材料包括水泥砂浆、SMA纤维和炭黑，所述SMA纤维与炭黑的质量比为32:5～96:10。本发明能够承受较大变形，延性和抗震性能优异；将炭黑掺入基体中，结合可导电的SMA纤维，既提高了基体的导电性能，也能够通过分析材料开裂后和恢复后电阻率的变化能够灵敏检测开裂情况。
High-ductility self-recovery cement-based composite column
一种高延性自恢复水泥基组合柱
PAN JINLONG (Autor:in) / CAI JINGMING (Autor:in) / HAN JINSHENG (Autor:in) / XU LI (Autor:in)
17.11.2020
Patent
Elektronische Ressource
Chinesisch
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