我公司加工厂生产预应力混凝土构件的长线生产台座是 70年代末建成的。由于台面使用年限较长 ,严重影响了预制构件的质量 ,为此决定对台面进行改造 ,采用预应力混凝土整体滑移台面 ,横向适当设伸缩缝。台面设计依据GBJ10 - 89《混凝土结构设计规范》的有关规定进行。具体改造措 The long-term production pedestal for the production of prestressed concrete components in our company’s processing plant was built in the late 1970s. Due to the long service life of the countertops, which seriously affected the quality of the prefabricated units, the decision was made to renovate the countertops. The prestressed concrete monolithic sliding countertops were adopted and the expansion joints were appropriately positioned transversely. The design of countertops is based on the relevant provisions of GBJ10-89 “Code for Design of Concrete Structures”. Concrete renovation measures