Secondly, the least length of pretensioned prestressed concrete slab is defined to make the full use of steel strand strength and avoid flexural crack occurs within the development length.

其次为使构件破坏时充分发挥预应力钢绞线的强度，防止弯曲裂缝出现在延伸长度之内，提出了先张预应力混凝土板在均布荷载作用下的最小板长。

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Secondly, the least length of pretensioned prestressed concrete slab is defined to make the full use of steel strand strength and avoid flexural crack occurs within the development length.

其次为使构件破坏时充分发挥预应力钢绞线的强度，防止弯曲裂缝出现在延伸长度之内，提出了先张预应力混凝土板在均布荷载作用下的最小板长。

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