《梁书·列传·卷五十六》
十二月，侯景建造了各种攻城的器械以及飞楼、橦车、登城车、登堞车、阶道车、火车，都有数丈高，一辆车多到有二十个车轮，全都陈放在皇城前，在多处同时用这些攻具攻城。
十二月，景造诸攻具及飞楼、橦车、登城车、登堞车、阶道车、火车，并高数丈，一车至二十轮，陈于阙前，百道攻城并用焉。
In December, Hou Jing built all kinds of siege equipment such as flying buildings, pile drivers, siege towers, siege ladders, stairs and fire carts, all of which were several feet high, with up to twenty wheels per cart, all of which were placed in front of the imperial city and used simultaneously to besiege the city.