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钢筋混凝土预制梁广泛用于单层工业厂房的屋而结构,梁与柱一般通过预埋件予以连接。梁端预埋件除承受支座反力和排架横梁的水平力外,由于梁端预埋件与柱子焊接,使梁与柱子的连接节点产生约束作用,对梁端预埋件产生附加弯矩。梁的温度变形,混凝土的收缩以及预应力的徐变作用也会使梁端预埋件产生附加拉力。柱基的不均匀沉陷或意外事故等都有可能使梁端预埋件产生附加拉力或弯矩。因此在美国预应力
Reinforced concrete prefabricated beams are widely used in the structure of single-story industrial buildings and beams and columns are generally connected through embedded parts. In addition to the bearing force of the beam end and the horizontal force of the truss beam, the beam end embedded part is welded to the column end, so that the connection node between the beam and the column is restrained, and additional bending occurs on the beam end embedded part. Moments. The temperature deformation of the beam, the shrinkage of the concrete and the creep of the prestress will also cause the beam end embedded part to generate additional tension. Non-uniform subsidence or accidents of the column base may cause the beam end embedded part to generate additional tensile or bending moments. So prestressed in the United States