Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Prefabricated bridge pier anti-seismic damage controllable connecting device
A main body structure is composed of an upper UHPC connection transition section, a lower UHPC connection transition section and an ECC core energy consumption section, a splicing coupler is arranged in the UHPC connection transition section, a shape memory alloy bar is arranged in the core energy consumption section, the upper end of the shape memory alloy bar is inserted into the splicing coupler of the upper UHPC connection transition section, and the lower end of the shape memory alloy bar is inserted into the ECC core energy consumption section. The lower end of the upper UHPC connecting transition section is inserted into the splicing coupler of the lower UHPC connecting transition section, and connecting steel bars in the prefabricated cover beam and the prefabricated pier are fixedly connected with the shape memory alloy bars in the splicing coupler of the upper UHPC connecting transition section and the splicing coupler of the lower UHPC connecting transition section respectively. According to the device, the superelasticity and reset performance of SMA, the high ductility of the ECC composite material and the high-strength performance of the UHPC material are utilized, the self-reset effect is good under the action of strong shock, the anti-seismic damage degree, the damage part and the damage form of the structure are controllable, and main stress components such as the prefabricated pier and the prefabricated cover beam are effectively protected.
本发明公开了预制桥墩抗震损伤可控型连接装置，主体结构由上、下UHPC连接过渡段和ECC核心耗能段组成，UHPC连接过渡段内设置拼接耦合器，所述核心耗能段内设置形状记忆合金棒，所述形状记忆合金棒上端插入上UHPC连接过渡段的拼接耦合器内，下端插入下UHPC连接过渡段的拼接耦合器内，预制盖梁、预制桥墩中连接钢筋分别上UHPC连接过渡段和下UHPC连接过渡段的拼接耦合器内与形状记忆合金棒实现固接。本发明装置利用SMA的超弹性和复位性能，ECC复合材料的高延性及UHPC材料的高强性能，在强震作用下自复位效果良好，并使结构抗震损伤程度、破坏部位及破坏形式可控，有效保护预制桥墩和预制盖梁等主要受力构件。
Prefabricated bridge pier anti-seismic damage controllable connecting device
A main body structure is composed of an upper UHPC connection transition section, a lower UHPC connection transition section and an ECC core energy consumption section, a splicing coupler is arranged in the UHPC connection transition section, a shape memory alloy bar is arranged in the core energy consumption section, the upper end of the shape memory alloy bar is inserted into the splicing coupler of the upper UHPC connection transition section, and the lower end of the shape memory alloy bar is inserted into the ECC core energy consumption section. The lower end of the upper UHPC connecting transition section is inserted into the splicing coupler of the lower UHPC connecting transition section, and connecting steel bars in the prefabricated cover beam and the prefabricated pier are fixedly connected with the shape memory alloy bars in the splicing coupler of the upper UHPC connecting transition section and the splicing coupler of the lower UHPC connecting transition section respectively. According to the device, the superelasticity and reset performance of SMA, the high ductility of the ECC composite material and the high-strength performance of the UHPC material are utilized, the self-reset effect is good under the action of strong shock, the anti-seismic damage degree, the damage part and the damage form of the structure are controllable, and main stress components such as the prefabricated pier and the prefabricated cover beam are effectively protected.
本发明公开了预制桥墩抗震损伤可控型连接装置，主体结构由上、下UHPC连接过渡段和ECC核心耗能段组成，UHPC连接过渡段内设置拼接耦合器，所述核心耗能段内设置形状记忆合金棒，所述形状记忆合金棒上端插入上UHPC连接过渡段的拼接耦合器内，下端插入下UHPC连接过渡段的拼接耦合器内，预制盖梁、预制桥墩中连接钢筋分别上UHPC连接过渡段和下UHPC连接过渡段的拼接耦合器内与形状记忆合金棒实现固接。本发明装置利用SMA的超弹性和复位性能，ECC复合材料的高延性及UHPC材料的高强性能，在强震作用下自复位效果良好，并使结构抗震损伤程度、破坏部位及破坏形式可控，有效保护预制桥墩和预制盖梁等主要受力构件。
Prefabricated bridge pier anti-seismic damage controllable connecting device
预制桥墩抗震损伤可控型连接装置
YANG DAHAI (Autor:in) / WANG ZHITIAN (Autor:in) / WU ZHIGANG (Autor:in) / YANG KAI (Autor:in) / BAO SHIHUI (Autor:in) / FANG ZHENGDONG (Autor:in) / WEI QINGQING (Autor:in) / XIE YUMENG (Autor:in) / WANG QIAN (Autor:in) / SHI CHUAN (Autor:in)
30.01.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
E01D
BRIDGES
,
Brücken
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