A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention discloses a construction method of retard-bonded prestress. The method comprises the following steps that the arrangement of prestressed tendons is deepened according to a design drawing, numbering is carried out, material falling is carried out, a beam plate bottom die is mounted, plate bottom common steel bars and prestressed tendons are laid and transported to a construction siteand hoisted to the position of one end of a penetrating bundle of a working surface, a positioning rib is mounted according to a deepened vector height diagram, a prestressed rib applied and mounted,each joint of a tensioning end and an anchoring end is mounted and adjusted, hidden acceptance check is carried out on the prestressed rib, concrete pouring is carried out, and tensioning is carried out on the prestressed rib and the tensioning end part of the prestressed rib is treated when the strength of the concrete meets the design requirements. The construction method of the retard-bonded prestress has the beneficial effects that the structural performance is excellent, the anti-seismic property is excellent, the construction process is simple, and the quality is easy to control; the retard-bonded prestress technology overcomes the defects of bonded prestress and unbonded prestress, integrates the advantages of the bonded prestress and the unbonded prestress, is a novel prestress technology developed on the basis of the bonded prestress technology and the unbonded prestress technology, is good in comprehensive economic benefit, and has wide development prospects in modern structures.
本发明公开了一种缓粘结预应力的施工工法，包括根据设计图纸对预应力筋排布深化、编号、下料、安装梁板底模，铺放板底普通钢筋、预应力筋运输至施工现场，吊运至工作面穿束一端位置、根据深化的矢高图安装定位筋、敷穿安装预应力筋、张拉端、锚固端各节点的安装调整、预应力筋的隐蔽验收、浇筑混凝土、混凝土强度达到设计要求进行预应力筋的张拉、预应力筋张拉端部处理。本发明的有益效果是：结构性能优异、抗震性能优、施工工艺简单、质量易于控制，缓粘结预应力技术克服了有粘结预应力与无粘结预应力的缺点，综合了二者的优点，是在有粘结与无粘结预应力技术基础上发展而来的预应力新技术，综合经济效益好，在现代结构中具有广阔的发展前景。
The invention discloses a construction method of retard-bonded prestress. The method comprises the following steps that the arrangement of prestressed tendons is deepened according to a design drawing, numbering is carried out, material falling is carried out, a beam plate bottom die is mounted, plate bottom common steel bars and prestressed tendons are laid and transported to a construction siteand hoisted to the position of one end of a penetrating bundle of a working surface, a positioning rib is mounted according to a deepened vector height diagram, a prestressed rib applied and mounted,each joint of a tensioning end and an anchoring end is mounted and adjusted, hidden acceptance check is carried out on the prestressed rib, concrete pouring is carried out, and tensioning is carried out on the prestressed rib and the tensioning end part of the prestressed rib is treated when the strength of the concrete meets the design requirements. The construction method of the retard-bonded prestress has the beneficial effects that the structural performance is excellent, the anti-seismic property is excellent, the construction process is simple, and the quality is easy to control; the retard-bonded prestress technology overcomes the defects of bonded prestress and unbonded prestress, integrates the advantages of the bonded prestress and the unbonded prestress, is a novel prestress technology developed on the basis of the bonded prestress technology and the unbonded prestress technology, is good in comprehensive economic benefit, and has wide development prospects in modern structures.
本发明公开了一种缓粘结预应力的施工工法，包括根据设计图纸对预应力筋排布深化、编号、下料、安装梁板底模，铺放板底普通钢筋、预应力筋运输至施工现场，吊运至工作面穿束一端位置、根据深化的矢高图安装定位筋、敷穿安装预应力筋、张拉端、锚固端各节点的安装调整、预应力筋的隐蔽验收、浇筑混凝土、混凝土强度达到设计要求进行预应力筋的张拉、预应力筋张拉端部处理。本发明的有益效果是：结构性能优异、抗震性能优、施工工艺简单、质量易于控制，缓粘结预应力技术克服了有粘结预应力与无粘结预应力的缺点，综合了二者的优点，是在有粘结与无粘结预应力技术基础上发展而来的预应力新技术，综合经济效益好，在现代结构中具有广阔的发展前景。
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