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A platform for research: civil engineering, architecture and urbanism
Prestressed concrete steel bar truss prefabricated slab
The invention relates to a prestressed concrete steel bar truss precast slab, and belongs to the technical field of civil engineering. The prestressed concrete steel bar truss prefabricated slab comprises a concrete bottom plate, prestressed tendons, transverse steel bars and a steel bar truss, wherein the prestressed tendons are parallel to the long edge of the concrete bottom plate and arranged at equal intervals in the short edge direction of the concrete bottom plate, the transverse steel bars are parallel to the short edge of the concrete bottom plate and arranged at equal intervals in the long edge direction of the concrete bottom plate, and the steel bar truss is parallel to the long edge of the concrete bottom plate. By arranging the prestressed tendons, the crack resistance of the truss prefabricated slab is improved, the thickness of the concrete bottom plate is reduced, the span of the truss prefabricated slab is increased, the design is more flexible and variable by changing the sectional area of upper chord tendons of the steel bar trusses and controlling the bending rigidity of the prestressed truss prefabricated slab, the applicability of the prestressed truss prefabricated slab is enhanced, and finally, the purposes of improving the production, transportation and construction efficiency and reducing the cost are achieved.
本发明涉及一种预应力混凝土钢筋桁架预制板，属于土木工程技术领域。该预应力混凝土钢筋桁架预制板，包括混凝土底板、预应力筋、横向钢筋和钢筋桁架，预应力筋平行于混凝土底板的长边并沿混凝土底板的短边方向等间距布置，横向钢筋平行于混凝土底板的短边并沿混凝土底板的长边方向等间距布置，钢筋桁架平行于与混凝土底板的长边。本发明通过设置预应力筋，提高了桁架预制板抗裂性能，降低了混凝土底板厚度，增加了桁架预制板跨度，通过改变钢筋桁架上弦筋截面积，控制预应力桁架预制板弯曲刚度，使其设计更加灵活、多变，增强了预应力桁架预制板的适用性，最终实现了提高生产、运输、施工效率，降低成本的目的。
Prestressed concrete steel bar truss prefabricated slab
The invention relates to a prestressed concrete steel bar truss precast slab, and belongs to the technical field of civil engineering. The prestressed concrete steel bar truss prefabricated slab comprises a concrete bottom plate, prestressed tendons, transverse steel bars and a steel bar truss, wherein the prestressed tendons are parallel to the long edge of the concrete bottom plate and arranged at equal intervals in the short edge direction of the concrete bottom plate, the transverse steel bars are parallel to the short edge of the concrete bottom plate and arranged at equal intervals in the long edge direction of the concrete bottom plate, and the steel bar truss is parallel to the long edge of the concrete bottom plate. By arranging the prestressed tendons, the crack resistance of the truss prefabricated slab is improved, the thickness of the concrete bottom plate is reduced, the span of the truss prefabricated slab is increased, the design is more flexible and variable by changing the sectional area of upper chord tendons of the steel bar trusses and controlling the bending rigidity of the prestressed truss prefabricated slab, the applicability of the prestressed truss prefabricated slab is enhanced, and finally, the purposes of improving the production, transportation and construction efficiency and reducing the cost are achieved.
本发明涉及一种预应力混凝土钢筋桁架预制板，属于土木工程技术领域。该预应力混凝土钢筋桁架预制板，包括混凝土底板、预应力筋、横向钢筋和钢筋桁架，预应力筋平行于混凝土底板的长边并沿混凝土底板的短边方向等间距布置，横向钢筋平行于混凝土底板的短边并沿混凝土底板的长边方向等间距布置，钢筋桁架平行于与混凝土底板的长边。本发明通过设置预应力筋，提高了桁架预制板抗裂性能，降低了混凝土底板厚度，增加了桁架预制板跨度，通过改变钢筋桁架上弦筋截面积，控制预应力桁架预制板弯曲刚度，使其设计更加灵活、多变，增强了预应力桁架预制板的适用性，最终实现了提高生产、运输、施工效率，降低成本的目的。
Prestressed concrete steel bar truss prefabricated slab
一种预应力混凝土钢筋桁架预制板
CHENG ZHIJUN (author) / ZHAO YONG (author) / MA ZHIZHOU (author) / HU JIE (author) / REN CHAOYANG (author) / DONG WEIQUN (author)
2021-12-17
Patent
Electronic Resource
Chinese
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