发明名称 Method of manufacturing prestressed concrete culverts
摘要 A method of manufacturing a three-sided culvert includes prestressing tendons in the culvert form. A series of prestressing tendons are secured within a form adapted for casting a concrete culvert having three orthogonal sides. The prestressing tendons are utilized in the top slab of the three-sided culvert and are positioned within the form prior to the pouring of concrete therein. Reinforcing steel can be eliminated along with the costs associated therewith and a culvert configuration can be provided with enhanced strength and improved material properties. Such culverts may thus be provided in modular form for placement upon foundations at remote locations for the creation of bridges, drainage areas and the like.
申请公布号 US4953280(A) 申请公布日期 1990.09.04
申请号 US19900464588 申请日期 1990.01.11
申请人 GIFFORD-HILL & COMPANY, INC. 发明人 KITZMILLER, JAMES K.
分类号 B28B7/00;B28B7/24;B28B23/04;E01F5/00 主分类号 B28B7/00
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