Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
FRP-rebar-reinforced concrete beam with high ductility in compressive zone
The invention discloses an FRP-rebar-reinforced concrete beam with high ductility in a compressive zone, and belongs to the technical field of structures. The FRP-rebar-reinforced concrete beam comprises a beam body. An FRP rebar framework is arranged in the beam body. High-ductility concrete is poured into the compressive zone on the top of the beam body. Ordinary concrete or high-ductility concrete is adopted in a tensile zone at the bottom of the beam body. The thickness of the high-ductility concrete of the compressive zone on the top of the beam body is not smaller than 20 mm and not larger than half of the thickness of the beam body. A high-ductility concrete layer is overlapped on a compressive zone on the top of a traditional FRP-rebar-reinforced concrete beam, so that the mechanical property of the concrete beam can be brought into full play, the damage of the beam is not sudden fragile damage, but ductile damage with signs, the ductility of the FRP-rebar-reinforced concrete beam is improved, the durability of the combined beam can be sufficiently improved, the crack width of the beam in the stress process can be effectively controlled, early-stage plastic cracks of concrete are effectively restrained, and the tenacity of concrete can be improved.
本发明公开了一种受压区具有高延性性能的FRP筋混凝土梁，属于结构技术领域，包括梁本体，在梁本体内设置有FRP筋骨架，在梁本体顶部受压区浇筑有高延性混凝土，所述梁本体底部受拉区采用普通混凝土或高延性混凝土,梁本体顶部受压区的高延性混凝土厚度不小于20mm，且不大于梁本体厚度的一半；本发明在传统FRP筋混凝土梁顶部受压区叠合了高延性混凝土层，能够有效发挥其力学性能，使梁的破坏不是突然发生的脆性破坏，而是一种延性的有征兆的破坏过程，提高了FRP筋混凝土梁的延性，还可以充分提高组合梁的耐久性能，能够有效控制梁在受力过程中的裂缝宽度，有效抑制混凝土早期塑性裂缝,并且可以提高混凝土的韧性。
FRP-rebar-reinforced concrete beam with high ductility in compressive zone
The invention discloses an FRP-rebar-reinforced concrete beam with high ductility in a compressive zone, and belongs to the technical field of structures. The FRP-rebar-reinforced concrete beam comprises a beam body. An FRP rebar framework is arranged in the beam body. High-ductility concrete is poured into the compressive zone on the top of the beam body. Ordinary concrete or high-ductility concrete is adopted in a tensile zone at the bottom of the beam body. The thickness of the high-ductility concrete of the compressive zone on the top of the beam body is not smaller than 20 mm and not larger than half of the thickness of the beam body. A high-ductility concrete layer is overlapped on a compressive zone on the top of a traditional FRP-rebar-reinforced concrete beam, so that the mechanical property of the concrete beam can be brought into full play, the damage of the beam is not sudden fragile damage, but ductile damage with signs, the ductility of the FRP-rebar-reinforced concrete beam is improved, the durability of the combined beam can be sufficiently improved, the crack width of the beam in the stress process can be effectively controlled, early-stage plastic cracks of concrete are effectively restrained, and the tenacity of concrete can be improved.
本发明公开了一种受压区具有高延性性能的FRP筋混凝土梁，属于结构技术领域，包括梁本体，在梁本体内设置有FRP筋骨架，在梁本体顶部受压区浇筑有高延性混凝土，所述梁本体底部受拉区采用普通混凝土或高延性混凝土,梁本体顶部受压区的高延性混凝土厚度不小于20mm，且不大于梁本体厚度的一半；本发明在传统FRP筋混凝土梁顶部受压区叠合了高延性混凝土层，能够有效发挥其力学性能，使梁的破坏不是突然发生的脆性破坏，而是一种延性的有征兆的破坏过程，提高了FRP筋混凝土梁的延性，还可以充分提高组合梁的耐久性能，能够有效控制梁在受力过程中的裂缝宽度，有效抑制混凝土早期塑性裂缝,并且可以提高混凝土的韧性。
FRP-rebar-reinforced concrete beam with high ductility in compressive zone
一种受压区具有高延性能的FRP筋混凝土梁
ZHANG PU (Autor:in) / SU YANLI (Autor:in) / LIU YE (Autor:in) / ZHAO JUN (Autor:in) / GAO DANYING (Autor:in)
28.07.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
E04C
STRUCTURAL ELEMENTS
,
Bauelemente
| British Library Conference Proceedings | 2005
Oversized reinforced concrete beam fixed rebar support structure and rebar binding method thereof
| Europäisches Patentamt | 2015