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众所周知,在框架结构中采用预制构件是有许多优点的。例如产品质量较易控制,节省模板的费用,加快施工的进度。设计具有预制混凝土构件的抗震框架的根本问题,就是要找到一个把预制构件连接起来的、经济而又实用的方法。构件之间的连接应能满足抗地震荷载的强度和刚度,使结构在非弹性阶段,在周期性荷载下能具有必要的延性。预制和现浇的钢筋混凝土组合体系,在施工方面有许多优点。预制混凝土构件的优点是质量好,施工速度快,而现浇钢筋混凝土可为地震提供必要的延性和结构整体性。
It is well known that the use of prefabricated components in a frame structure has many advantages. For example, product quality is easier to control, save the cost of the template, and speed up the construction progress. The fundamental problem in designing earthquake-resistant frames with precast concrete elements is to find an economical and practical way to connect the prefabricated elements. The connections between the components should be able to meet the strength and stiffness of the anti-seismic load, so that the structure can have the necessary ductility under cyclic loading in the inelastic stage. Prefabricated and cast-in-place reinforced concrete systems have many advantages in construction. Precast concrete components have the advantages of good quality and quick construction, while cast-in-place reinforced concrete can provide the necessary ductility and structural integrity for earthquakes.