某变电站后置夹层结构设计与施工

Structural design and construction of post-built floor for a substation

结合某变电站综合楼后置夹层的设计实例,介绍了后置夹层的可行性、夹层方案确定、原结构构件和地基基础的承载力验算、后置钢与混凝土组合楼盖设计、新老结构和新增钢框架结构连接节点设计以及施工中重点关注的问题等,对同类改建工程具有一定的参考价值。

The design of post-built floor for a main control building in an existing substation is introduced. It is discussed that analyzing of feasibility, determining of structural scheme, calculating of existing structure and foundation, designing of steel-concrete composite floor slab,designing of joint between the old and new frame, designing of hinged connection joint of post-reinforced steel frame and indicating attention problems in construction. All of these can be served as references for similar projects.