A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Construction method of super-long-span special-shaped large-section dense rib beam
The invention provides a construction method for an ultra-long-span special-shaped large-section dense rib beam, and belongs to the technical field of large-scale building engineering.The construction method for the ultra-long-span special-shaped large-section dense rib beam comprises the following steps that prestressed tendons are blanked according to the structural size and the number on a construction drawing; common steel bars are welded into a prestress support; corrugated pipes are arranged in the prestressed supports; the prestressed tendons penetrate into the corrugated pipe and are bound by pulling hooks to form the prestressed tendons, fixing anchorage devices are installed at the fixed ends of the prestressed tendons, and tensioning anchorage devices are installed at the tensioning ends of the prestressed tendons; an exhaust hole is reserved in the prestressed support; concrete is poured into the prestressed support; the prestressed tendons are tensioned along the tensioning ends; grouting is conducted in the exhaust holes; the parts, exposed out of the concrete, of the tensioning ends and the fixed ends of the prestressed tendons are cut; sealing and anchoring the tensioning ends of the prestressed tendons to form a dense rib beam; the problem that a dense rib beam component is prone to cracking and deformation can be solved.
本发明提供了一种超长跨度异形大截面密肋梁施工方法，属于大型建筑工程技术领域，该超长跨度异形大截面密肋梁施工方法包括以下步骤：按施工图上的结构尺寸和数量，进行预应力筋下料；将普通钢筋焊接为预应力支架；在预应力支架内布设波纹管；将预应力筋穿入波纹管内，并拉钩绑扎，形成预应力筋，并在预应力筋的固定端安装固定锚具，在预应力筋的张拉端安装张拉锚具；在预应力支架中留置排气孔；向预应力支架内浇筑混凝土；沿张拉端进行预应力筋张拉；向排气孔内灌浆；切割预应力筋的张拉端、固定端露于混凝土外的部分；对预应力筋的张拉端封锚，形成密肋梁；本发明可以解决密肋梁构件易出现裂缝和变形的问题。
Construction method of super-long-span special-shaped large-section dense rib beam
The invention provides a construction method for an ultra-long-span special-shaped large-section dense rib beam, and belongs to the technical field of large-scale building engineering.The construction method for the ultra-long-span special-shaped large-section dense rib beam comprises the following steps that prestressed tendons are blanked according to the structural size and the number on a construction drawing; common steel bars are welded into a prestress support; corrugated pipes are arranged in the prestressed supports; the prestressed tendons penetrate into the corrugated pipe and are bound by pulling hooks to form the prestressed tendons, fixing anchorage devices are installed at the fixed ends of the prestressed tendons, and tensioning anchorage devices are installed at the tensioning ends of the prestressed tendons; an exhaust hole is reserved in the prestressed support; concrete is poured into the prestressed support; the prestressed tendons are tensioned along the tensioning ends; grouting is conducted in the exhaust holes; the parts, exposed out of the concrete, of the tensioning ends and the fixed ends of the prestressed tendons are cut; sealing and anchoring the tensioning ends of the prestressed tendons to form a dense rib beam; the problem that a dense rib beam component is prone to cracking and deformation can be solved.
本发明提供了一种超长跨度异形大截面密肋梁施工方法，属于大型建筑工程技术领域，该超长跨度异形大截面密肋梁施工方法包括以下步骤：按施工图上的结构尺寸和数量，进行预应力筋下料；将普通钢筋焊接为预应力支架；在预应力支架内布设波纹管；将预应力筋穿入波纹管内，并拉钩绑扎，形成预应力筋，并在预应力筋的固定端安装固定锚具，在预应力筋的张拉端安装张拉锚具；在预应力支架中留置排气孔；向预应力支架内浇筑混凝土；沿张拉端进行预应力筋张拉；向排气孔内灌浆；切割预应力筋的张拉端、固定端露于混凝土外的部分；对预应力筋的张拉端封锚，形成密肋梁；本发明可以解决密肋梁构件易出现裂缝和变形的问题。
Construction method of super-long-span special-shaped large-section dense rib beam
一种超长跨度异形大截面密肋梁施工方法
LI XIANGLONG (author) / SUN HAO (author) / LI BAOCHENG (author) / ZHANG XINYU (author) / YUAN ZHENG (author) / TAN YUPING (author) / ZHOU JIAN (author) / GUO CHAOWEI (author) / QIN CHENRAN (author) / WANG MINGXIN (author)
2023-05-12
Patent
Electronic Resource
Chinese
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