简支梁就是两端支座仅提供竖向约束，而不提供转角约束的支撑结构。简支梁仅在两端受铰支座约束，主要承受正弯矩，一般为静定结构。体系温变、混凝土收缩徐变、张拉预应力、支座移动等都不会在梁中产生附加内力，受力简单，简支梁为力学简化模型。
通过实例，介绍简支梁(板)桥改造的实施方式。
It also introduces implementation of simple supported beam (slab) bridge reforming via practical instances.
并用此方法讨论了简支梁和悬臂梁的塑性动力响应问题。
In this way, the response of simply supported beams and cantilever beams is discussed.
同时对部分预应力简支梁与全预应力简支梁作了经济比较和分析。
Economical comparison and analysis are also conducted between partial prestressed and full prestressed simple-supported girders.
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