The invention relates to a bridge construction gantry crane and an installation technology, and belongs to the technical field of bridge construction, the bridge construction gantry crane comprises a track, a main beam and two supporting leg frames, the supporting leg frames slide relative to the track, the main beam is connected to the ends, away from the track, of the supporting leg frames, one supporting leg frame is a fixed supporting leg, and the other supporting leg frame is an adjustable supporting leg; one end of the main beam is detachably connected with the fixed supporting leg, the other end of the main beam is slidably connected with the adjusting supporting leg, and the sliding direction is consistent with the length direction of the main beam. According to the portal frame, the self-adaptive adjusting capacity is achieved between the main beam and the adjusting supporting leg, when the track gauge of the track deviates, the distance between the adjusting supporting leg and the fixed supporting leg changes, the main beam can also conduct adaptive change through the adjusting allowance of the main beam and the adjusting supporting leg, and therefore the overall stress stability of the portal frame is improved.
本申请涉及一种桥梁施工龙门吊和安装工艺,属于桥梁施工技术的领域,其包括轨道、主梁和两个支腿架,所述支腿架与轨道相对滑动,所述主梁连接于支腿架远离轨道的一端,其中一个支腿架为固定支腿,另一个支腿架为调节支腿,所述主梁的一端与固定支腿可拆卸连接,另一端与调节支腿滑动连接,滑动方向与主梁的长度方向一致。本申请的主梁与调节支腿之间具有自适应调节能力,当轨道的轨距发生偏差变化时,调节支腿和固定支腿的距离发生变化,主梁也可通过自身与调节支腿的调节余量进行适应性变化,从而提高了龙门架整体的受力稳定性。
Bridge construction gantry crane and mounting process
一种桥梁施工龙门吊和安装工艺
2024-08-16
Patent
Electronic Resource
Chinese
IPC: | B66C Krane , CRANES |