Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Tension stress dispersion method for post-tensioned prestressed steel strand anchor cable
The invention discloses a method for dispersing the tension stress of a post-tensioned prestressed steel strand anchor cable. The method comprises the following construction steps that S1, anchor holes of the anchor cable are drilled in a retaining wall to a moderately weathered rock stratum; s2, an anchor cable is drilled into an anchor hole; s3, grouting an anchoring section of the anchor rod; s4, steel sleeves and lattice beam steel bars are installed on the retaining wall; s5, flat steel grids are installed on the lattice beam steel bars; s6, a lattice frame formwork is installed, lattice frame concrete is poured to form a lattice frame, and then the formwork is removed; s7, an anchorage device is installed, and an anchor cable is tensioned; s8, grouting the free section of the anchor rod; and S9, an anchor head is poured. According to the construction method, the higher bearing capacity of the flat steel grating net is utilized, the flat steel grating is filled with the concrete, the bearing capacity of the grating is further improved, the tensile stress is more effectively transmitted in the lattice frame, the anchor cable node is prevented from damaging the bearing face, meanwhile, the bearing capacity of the anchor cable node is improved without adding a reinforcing mesh, and the construction cost is reduced. And the steel bar consumption at the anchor cable node can be saved.
本发明公开了一种后张法预应力钢绞线锚索张拉应力分散方法，包括以下施工步骤：S1：在挡墙上进行锚索钻锚孔至中风化岩层；S2：将锚索打进锚孔；S3：锚杆锚固段注浆；S4：在挡墙上安装钢套管和格构梁钢筋；S5：在格构梁钢筋上安装扁钢格栅；S6：安装格构框架模板并浇筑格构框架混凝土形成格构框架，然后拆除模板；S7：安装锚具并张拉锚索；S8：锚杆自由段注浆；S9：浇筑锚头。本发明的施工方法利用扁钢格栅网更高的承载能力，在扁钢格栅中填充混凝土，进一步提升格栅的承载能力，使在格构框架中更有效的传递张拉应力，防止锚索节点对承受面产生破坏，同时，不用再添加钢筋网片提升锚索节点承载能力，可在锚索节点处节省钢筋用量。
Tension stress dispersion method for post-tensioned prestressed steel strand anchor cable
The invention discloses a method for dispersing the tension stress of a post-tensioned prestressed steel strand anchor cable. The method comprises the following construction steps that S1, anchor holes of the anchor cable are drilled in a retaining wall to a moderately weathered rock stratum; s2, an anchor cable is drilled into an anchor hole; s3, grouting an anchoring section of the anchor rod; s4, steel sleeves and lattice beam steel bars are installed on the retaining wall; s5, flat steel grids are installed on the lattice beam steel bars; s6, a lattice frame formwork is installed, lattice frame concrete is poured to form a lattice frame, and then the formwork is removed; s7, an anchorage device is installed, and an anchor cable is tensioned; s8, grouting the free section of the anchor rod; and S9, an anchor head is poured. According to the construction method, the higher bearing capacity of the flat steel grating net is utilized, the flat steel grating is filled with the concrete, the bearing capacity of the grating is further improved, the tensile stress is more effectively transmitted in the lattice frame, the anchor cable node is prevented from damaging the bearing face, meanwhile, the bearing capacity of the anchor cable node is improved without adding a reinforcing mesh, and the construction cost is reduced. And the steel bar consumption at the anchor cable node can be saved.
本发明公开了一种后张法预应力钢绞线锚索张拉应力分散方法，包括以下施工步骤：S1：在挡墙上进行锚索钻锚孔至中风化岩层；S2：将锚索打进锚孔；S3：锚杆锚固段注浆；S4：在挡墙上安装钢套管和格构梁钢筋；S5：在格构梁钢筋上安装扁钢格栅；S6：安装格构框架模板并浇筑格构框架混凝土形成格构框架，然后拆除模板；S7：安装锚具并张拉锚索；S8：锚杆自由段注浆；S9：浇筑锚头。本发明的施工方法利用扁钢格栅网更高的承载能力，在扁钢格栅中填充混凝土，进一步提升格栅的承载能力，使在格构框架中更有效的传递张拉应力，防止锚索节点对承受面产生破坏，同时，不用再添加钢筋网片提升锚索节点承载能力，可在锚索节点处节省钢筋用量。
Tension stress dispersion method for post-tensioned prestressed steel strand anchor cable
后张法预应力钢绞线锚索张拉应力分散方法
YE XIN (Autor:in) / LIU HUI (Autor:in) / YONG ZHILIN (Autor:in) / XUE JIAQUAN (Autor:in)
06.09.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
PRESTRESSED-POST-TENSIONED CONCRETE - Headed Studs in Anchor Zones of Post-Tensioned Slabs
| Online Contents | 2005
Steel strand anchoring structure and application thereof in post-tensioned prestressed bent cap
| Europäisches Patentamt | 2024
Post-tensioned prestressed Concrete
| TIBKAT | 1981