The position of tensile region of the section at mid-supports goes down as the span-depthratio reduces.
中间支座截面受拉区的位置随着跨高比的减小而下移；
2
It is suggested that the span-depthratio of wall-bearing transfer beam should be less than 8 in seismic design, 10 in static design for SRC structure.
建议一般型钢混凝土托墙转换梁的允许跨高比在抗震设防时不大于8，对非抗震设计工程，跨高比不大于10；
3
It is indicated that apart from stiffness factor of beam to column, the ratio of depth to span and slop of roof greatly affect the stability performance of the portal frame under roof uniform loading.