Anti-pulling support capable of being used for fabricated highway steel bridge: Fid-Bau Portal

Anti-pulling support capable of being used for fabricated highway steel bridge

GE WENHAO / LI KAIQIONG / XIAO XING / WANG RUIJUN / SONG ZHIMIN

The invention provides an anti-pulling support for an assembled highway steel bridge, which is characterized by comprising an upper support plate assembly, a pin shaft, a lower support plate assembly, a sliding clamping plate assembly and an anchor rod assembly, the upper end of the upper support plate assembly is detachably connected with a lower chord of the fabricated highway steel bridge; the lower end of the upper support plate assembly is connected with the upper end of the lower support plate assembly through the pin shaft, and the upper support plate assembly and the lower support plate assembly can rotate relatively; the lower end of the lower supporting plate assembly is installed in the sliding clamping plate assembly and can slide relative to the sliding clamping plate assembly. The upper end of the anchor rod assembly penetrates through the sliding clamping plate assembly and is detachably connected with the sliding clamping plate assembly, and the lower end of the anchor rod assembly is fixed in an abutment; the anchor rod assembly extrudes the sliding clamping plate assembly through detachable connection, so that pressure is sequentially transmitted to the lower support assembly, the pin shaft and the upper support assembly, and then the anti-pulling support plays an anti-pulling role.

本发明提供了一种可用于装配式公路钢桥的抗拔支座，其特征在于，该抗拔支座包括上支座板组件、销轴、下支座板组件、滑动卡板组件及锚棒组件；所述上支座板组件上端与装配式公路钢桥的下弦杆可拆卸连接；所述上支座板组件下端与所述下支座板组件上端通过所述销轴连接，所述上支座板组件与所述下支座板组件可相对转动；所述下支板组件下端安装于所述滑动卡板组件内部，与所述滑动卡板可相对滑动；所述锚棒组件上端穿过所述滑动卡板组件与所述滑动卡板组件可拆卸连接，所述锚棒组件下端固定在墩台中；所述锚棒组件通过可拆卸连接挤压所述滑动卡板组件，使压力依次传递至所述下支座组件、所述销轴、所述上支座组件，进而使所述抗拔支座起到抗拔作用。

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