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发明公开
CN103866794A 一种预应力井盖 无效 - 撤回

一种预应力井盖
摘要：
本发明涉及一种钢筋混凝土结构，特别是涉及到一种预应力混凝土构件中使用的预应力井盖，包括井盖，还包括预应力钢绞线，所述井盖为混凝土制成，所述井盖包裹预应力钢绞线，所述预应力钢绞线呈交叉网状结构分布，所述预应力钢绞线为刻痕预应力钢绞线；本发明的有益效果是：保证井盖的抗弯曲和冲击力强度，提高井盖的使用寿命，保证施工质量，对井盖起到有效的保护作用。
摘要（英）：

The invention relates to a reinforced concrete structure, in particular to a prestressed well lid for a prestressed concrete member. The prestressed well lid comprises a well lid body and prestressed steel strands, the well lid body is made of concrete and wraps the prestressed steel strands, and the prestressed steel strands are distributed in a cross mesh structure and are indented prestressed steel strands. The prestressed well lid has the advantages that the bending resistance and the impact strength of the well lid are ensured, the service life of the well lid is prolonged, construction quality is ensured, and the well lid is effectively protected.

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