A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Construction method of post-tensioning prestressed seamless concrete terrace
The invention discloses a post-tensioning prestress seamless concrete terrace construction method. The method comprises the following steps that corrugated pipes are laid; node installation of the tensioning end and the fixed end; the prestressed tendons penetrate into the corrugated pipes; a strain induction assembly is installed, the strain induction assembly comprises a stress transmission steel bar and a strain induction sensor, the stress transmission steel bar comprises a first steel bar and a second steel bar which are coaxially arranged, and the two main steel bars are connected through a connecting steel bar; an installation gap is reserved between the end faces of the opposite ends of the first steel bar and the second steel bar, and the strain induction sensor is installed in the installation gap. Concrete is poured, and the strain sensing assembly is poured and wrapped in the concrete; and in the pre-stressed tendon tensioning process, the pre-compressive stress is controlled mainly based on the tensioning force, the measured tensioning elongation value is used for checking, and meanwhile, the strain value of the concrete is referred to. By arranging the strain sensing assembly, a worker can know the strain condition of concrete in the construction process of the prestressed seamless terrace.
本申请公开了后张拉预应力无缝混凝土地坪施工方法，包括如下步骤：铺设波纹管；张拉端和固定端节点安装；将预应力筋穿入波纹管内；安装应变感应组件，应变感应组件包括应力传递钢筋和应变感应传感器，应力传递钢筋包括同轴设置的第一钢筋和第二钢筋，两个主筋之间通过连接筋连接；第一钢筋和第二钢筋的相对端的端面之间留有安装间隙，应变感应传感器安装于安装间隙内；浇筑混凝土，应变感应组件浇筑包裹于混凝土内部；预应力筋张拉，预应力筋张拉过程中，预压应力的控制，以张拉力为主，测量张拉伸长值作为校核，同时参考混凝土的应变值。本申请通过设置应变感应组件，使工作人员能够了解预应力无缝地坪施工过程中的混凝土的应变情况。
Construction method of post-tensioning prestressed seamless concrete terrace
The invention discloses a post-tensioning prestress seamless concrete terrace construction method. The method comprises the following steps that corrugated pipes are laid; node installation of the tensioning end and the fixed end; the prestressed tendons penetrate into the corrugated pipes; a strain induction assembly is installed, the strain induction assembly comprises a stress transmission steel bar and a strain induction sensor, the stress transmission steel bar comprises a first steel bar and a second steel bar which are coaxially arranged, and the two main steel bars are connected through a connecting steel bar; an installation gap is reserved between the end faces of the opposite ends of the first steel bar and the second steel bar, and the strain induction sensor is installed in the installation gap. Concrete is poured, and the strain sensing assembly is poured and wrapped in the concrete; and in the pre-stressed tendon tensioning process, the pre-compressive stress is controlled mainly based on the tensioning force, the measured tensioning elongation value is used for checking, and meanwhile, the strain value of the concrete is referred to. By arranging the strain sensing assembly, a worker can know the strain condition of concrete in the construction process of the prestressed seamless terrace.
本申请公开了后张拉预应力无缝混凝土地坪施工方法，包括如下步骤：铺设波纹管；张拉端和固定端节点安装；将预应力筋穿入波纹管内；安装应变感应组件，应变感应组件包括应力传递钢筋和应变感应传感器，应力传递钢筋包括同轴设置的第一钢筋和第二钢筋，两个主筋之间通过连接筋连接；第一钢筋和第二钢筋的相对端的端面之间留有安装间隙，应变感应传感器安装于安装间隙内；浇筑混凝土，应变感应组件浇筑包裹于混凝土内部；预应力筋张拉，预应力筋张拉过程中，预压应力的控制，以张拉力为主，测量张拉伸长值作为校核，同时参考混凝土的应变值。本申请通过设置应变感应组件，使工作人员能够了解预应力无缝地坪施工过程中的混凝土的应变情况。
Construction method of post-tensioning prestressed seamless concrete terrace
后张拉预应力无缝混凝土地坪施工方法
LU RONGZHI (author) / SU LONGHUI (author) / HE ZEYAO (author) / CHEN RUIYUAN (author) / CHEN PINGYANG (author) / LU HONGYAO (author) / JI QINGTANG (author) / CAI FANGCHUN (author) / YANG LUSEN (author) / CAI XUEYU (author)
2023-12-15
Patent
Electronic Resource
Chinese
IPC:
E04F
FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
,
Ausbau von Bauwerken, z.B. Treppen, Fußböden
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