研究表明：非预应力高性能混凝土梁具有良好的抗震性能，中等预应力度的高性能混凝土梁也具有较好的抗震性能。
Studies showed that non prestressed high performance concrete (HPC) beams had good seismic performance, and prestressed HPC beams also had better seismic performance.
王艳丽，张云龙，费以原钢筋混凝土井式梁在屋面和非承墙、 板荷载的楼面结构多有出现。
Derrick-type reinforced concrete beam often appears in the framework of house walls and building walls that don't support the weight of walls, boards and so on.
本文从非棱柱形梁的弯曲理论出发，推导出了变截面刚架元的单元刚度矩阵和等效结点载荷。
Based on the theory of the bending of non-prismatic beam, the paper has derived a rigidity matrix and the equivalent node load of the rigid-frame element with variable sections.
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