珠海大桥的桥面伸缩装置，采用了当时国内堪称先进的BF系列橡胶伸缩装置。鉴于设计时考虑到气温变化、混凝土的收缩徐变、车辆轮压等因素，选用了伸缩量分别为120、160、200mm的装置共370延米。BF装置以独特的结构，改变了前一代板式橡胶伸缩缝仅靠橡胶剪切变形来实现桥面的水 Zhuhai Bridge deck telescopic device, using the country at the time called the BF series of rubber telescopic device. In view of the design taking into account temperature changes, shrinkage and creep of concrete, wheel pressure and other factors, the choice of telescopic amount was 120,160,200 mm, respectively, a total of 370 delay meters. BF device with a unique structure, changing the previous generation of rubber expansion joints only by rubber shear deformation to achieve the deck of the water