Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Novel bamboo fiber reinforced prestressed concrete sleeper and performance enhancing method
The invention belongs to the technical field of rail transit concrete products, and discloses a novel bamboo fiber reinforced prestressed concrete sleeper and a performance reinforcing method. Bamboofibers are added into concrete, so that the bending resistance and the tensile strength of the sleeper are improved. The bamboo fibers are uniformly mixed in the concrete; the bamboo fiber concrete isfilled between prestressed reinforcement frameworks; the length of the bamboo fibers is 2cm to 4cm; and the diameter is 0.2 to 0.4mm. The problem that cracks are easily generated due to weak tensilestrength of a common prestressed concrete sleeper is solved. On the premise of meeting the requirements of the railway sleeper, the performance of the sleeper is optimized, and the bending strength, tensile strength and ductility of the sleeper are enhanced; the generation of early cracks of the concrete sleeper and the expansion of the cracks under the action of external force are inhibited; theelasticity of the sleeper is enhanced, the impact resistance is improved, and the effects of vibration reduction and noise reduction are achieved; and environmental protection is facilitated.
本发明属于轨道交通混凝土制品技术领域，公开了一种新型竹纤维增强的预应力混凝土轨枕及性能增强方法，通过在混凝土中加入竹纤维，增加轨枕的抗弯抗拉性能。竹纤维均匀掺合在混凝土中；竹纤维混凝土填充于预应力钢筋骨架间；竹纤维长度2cm‑4cm；直径0.2‑0.4mm。本发明克服普通预应力混凝土轨枕由于抗拉强度弱易产生裂纹的问题。在满足铁路轨枕要求的前提下，优化轨枕的性能，增强轨枕的抗弯抗拉强度、延性；抑制混凝土轨枕早期裂纹的产生及在外力作用下裂纹的扩展；增强轨枕的弹性，提高抗冲击性能，起减振降噪的作用；有助于环境保护。
Novel bamboo fiber reinforced prestressed concrete sleeper and performance enhancing method
The invention belongs to the technical field of rail transit concrete products, and discloses a novel bamboo fiber reinforced prestressed concrete sleeper and a performance reinforcing method. Bamboofibers are added into concrete, so that the bending resistance and the tensile strength of the sleeper are improved. The bamboo fibers are uniformly mixed in the concrete; the bamboo fiber concrete isfilled between prestressed reinforcement frameworks; the length of the bamboo fibers is 2cm to 4cm; and the diameter is 0.2 to 0.4mm. The problem that cracks are easily generated due to weak tensilestrength of a common prestressed concrete sleeper is solved. On the premise of meeting the requirements of the railway sleeper, the performance of the sleeper is optimized, and the bending strength, tensile strength and ductility of the sleeper are enhanced; the generation of early cracks of the concrete sleeper and the expansion of the cracks under the action of external force are inhibited; theelasticity of the sleeper is enhanced, the impact resistance is improved, and the effects of vibration reduction and noise reduction are achieved; and environmental protection is facilitated.
本发明属于轨道交通混凝土制品技术领域，公开了一种新型竹纤维增强的预应力混凝土轨枕及性能增强方法，通过在混凝土中加入竹纤维，增加轨枕的抗弯抗拉性能。竹纤维均匀掺合在混凝土中；竹纤维混凝土填充于预应力钢筋骨架间；竹纤维长度2cm‑4cm；直径0.2‑0.4mm。本发明克服普通预应力混凝土轨枕由于抗拉强度弱易产生裂纹的问题。在满足铁路轨枕要求的前提下，优化轨枕的性能，增强轨枕的抗弯抗拉强度、延性；抑制混凝土轨枕早期裂纹的产生及在外力作用下裂纹的扩展；增强轨枕的弹性，提高抗冲击性能，起减振降噪的作用；有助于环境保护。
Novel bamboo fiber reinforced prestressed concrete sleeper and performance enhancing method
一种新型竹纤维增强的预应力混凝土轨枕及性能增强方法
JING GUOQING (Autor:in) / YAO LI (Autor:in) / WU JIANG (Autor:in) / PANG LING (Autor:in) / DU WENBO (Autor:in) / JIANG WANHONG (Autor:in) / DU YUNCHANG (Autor:in) / WANG CHUANG (Autor:in) / CHEN BIN (Autor:in) / CHEN XINGFENG (Autor:in)
26.02.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
E01B
PERMANENT WAY
,
Gleisoberbau
FIBER-REINFORCED PRESTRESSED REINFORCED CONCRETE SLEEPER
| Europäisches Patentamt | 2021
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