Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
FRP-concrete-steel double-wall hollow stiffening arch and construction method thereof
The invention relates to an FRP (Fiber Reinforced Plastic)-concrete-steel double-wall hollow stiffening arch and a construction method thereof. The double-wall hollow stiffening arch comprises an FRP outer pipe, a steel inner pipe with stiffening ribs and a concrete layer between the FRP outer pipe and the steel inner pipe. A series of longitudinal stiffening ribs are additionally arranged on the outer side of the steel inner pipe in the arch axis direction; the cross sections of the longitudinal stiffening ribs are one or more of T shapes, linear shapes and L shapes, and the outer edges of the longitudinal stiffening ribs are generally close to the inner wall of the FRP pipe; the longitudinal stiffening ribs provide the following function improvements for the arch structure: the section bearing capacity of the double-wall hollow component is improved; the joint action between the steel pipe and the concrete is strengthened as a shear connecting piece; as additional constraint, the local buckling resistance of the steel inner pipe is improved; in the construction process, positioning of the FRP outer pipe is assisted, concrete pouring is facilitated, and connection of the main arch rib and components such as a shoulder column or a suspender is facilitated. The arch-shaped structure has the advantages of being good in corrosion resistance, excellent in anti-seismic property, light in self weight, convenient to construct and the like.
本发明涉及一种FRP‑混凝土‑钢双壁空心加劲拱及其建造方法。双壁空心加劲拱包括FRP外管，带加劲肋的钢内管，以及两管之间的混凝土层。钢内管的外侧沿拱轴线方向增设了一系列纵向加劲肋；纵向加劲肋的截面形式为“T”形、“一”形、“L”形中的一种或多种，其外边缘通常靠近FRP管内壁；纵向加劲肋将对拱结构提供如下功能提升：提高双壁空心构件的截面承载力；作为剪力连接件强化钢管与混凝土之间的共同作用；作为附加约束提升钢内管的抗局部屈曲能力；在施工过程中辅助FRP外管的定位，方便浇筑混凝土，方便主拱肋与拱肩柱或吊杆等构件的连接。本发明的拱状结构，具有良好的耐腐蚀性能、优越的抗震性能，具有自重轻、建造方便等优点。
FRP-concrete-steel double-wall hollow stiffening arch and construction method thereof
The invention relates to an FRP (Fiber Reinforced Plastic)-concrete-steel double-wall hollow stiffening arch and a construction method thereof. The double-wall hollow stiffening arch comprises an FRP outer pipe, a steel inner pipe with stiffening ribs and a concrete layer between the FRP outer pipe and the steel inner pipe. A series of longitudinal stiffening ribs are additionally arranged on the outer side of the steel inner pipe in the arch axis direction; the cross sections of the longitudinal stiffening ribs are one or more of T shapes, linear shapes and L shapes, and the outer edges of the longitudinal stiffening ribs are generally close to the inner wall of the FRP pipe; the longitudinal stiffening ribs provide the following function improvements for the arch structure: the section bearing capacity of the double-wall hollow component is improved; the joint action between the steel pipe and the concrete is strengthened as a shear connecting piece; as additional constraint, the local buckling resistance of the steel inner pipe is improved; in the construction process, positioning of the FRP outer pipe is assisted, concrete pouring is facilitated, and connection of the main arch rib and components such as a shoulder column or a suspender is facilitated. The arch-shaped structure has the advantages of being good in corrosion resistance, excellent in anti-seismic property, light in self weight, convenient to construct and the like.
本发明涉及一种FRP‑混凝土‑钢双壁空心加劲拱及其建造方法。双壁空心加劲拱包括FRP外管，带加劲肋的钢内管，以及两管之间的混凝土层。钢内管的外侧沿拱轴线方向增设了一系列纵向加劲肋；纵向加劲肋的截面形式为“T”形、“一”形、“L”形中的一种或多种，其外边缘通常靠近FRP管内壁；纵向加劲肋将对拱结构提供如下功能提升：提高双壁空心构件的截面承载力；作为剪力连接件强化钢管与混凝土之间的共同作用；作为附加约束提升钢内管的抗局部屈曲能力；在施工过程中辅助FRP外管的定位，方便浇筑混凝土，方便主拱肋与拱肩柱或吊杆等构件的连接。本发明的拱状结构，具有良好的耐腐蚀性能、优越的抗震性能，具有自重轻、建造方便等优点。
FRP-concrete-steel double-wall hollow stiffening arch and construction method thereof
一种FRP-混凝土-钢双壁空心加劲拱及其建造方法
TENG JINGUANG (Autor:in) / CHEN GUANGMING (Autor:in) / LIN GUAN (Autor:in) / LAI JIANGTAO (Autor:in)
07.03.2023
Patent
Elektronische Ressource
Chinesisch
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