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A platform for research: civil engineering, architecture and urbanism
Double-arch-foot steel-concrete combined section
The invention discloses a double-arch-foot steel-concrete combined section which comprises a concrete arch foot, a first steel member, a second steel member and a prestressed rod connecting piece. The roots of the two concrete arch feet are obliquely crossed, and the top ends of the two concrete arch feet are provided with inverted-V-shaped double slopes. The first steel member is in an inverted V shape, and the two ends of the first steel member are buried in the two concrete arch feet respectively. The two second steel members are respectively pressed and fixed on the two inclined surfaces of the double-slope surface; a mortar layer is laid between the second steel member and the inclined plane; and the prestressed rod connecting piece penetrates through and locks the second steel member and the concrete arch springing, and is used for applying precompression to the concrete arch springing. According to the double-arch-foot steel-concrete combined section, the first steel component, the second steel component and the mortar layer can improve the stress characteristic of the concrete arch feet, stable transition of strength and rigidity is achieved, structural force transmission is reliable, the bearing capacity is improved, the concrete arch feet can be prevented from generating tensile stress through the prestressed rod connecting pieces, and the service life of the concrete arch feet is prolonged. Reliable connection is provided for the oblique-crossing special-shaped structure and the concrete skewback.
本申请公开了一种双拱脚钢混结合段，包括混凝土拱脚、第一钢构件、第二钢构件和预应力杆连接件；两个混凝土拱脚的根部斜交，两个混凝土拱脚的顶端设有呈倒V型的双坡面；第一钢构件呈倒V型，其两端分别埋设于两个混凝土拱脚内；两个第二钢构件分别压覆固定于双坡面的两个斜面；第二钢构件和斜面之间铺设有砂浆层；预应力杆连接件穿设并锁紧第二钢构件和与混凝土拱脚，用于向混凝土拱脚施加预压力。该双拱脚钢混结合段利用第一、二钢构件、砂浆层可以改善混凝土拱脚的受力特性，实现强度、刚度的平稳过渡，使结构传力可靠，提高承载能力，利用预应力杆连接件可以避免混凝土拱脚产生拉应力，为斜交的异型结构与混凝土拱座提供可靠连接。
Double-arch-foot steel-concrete combined section
The invention discloses a double-arch-foot steel-concrete combined section which comprises a concrete arch foot, a first steel member, a second steel member and a prestressed rod connecting piece. The roots of the two concrete arch feet are obliquely crossed, and the top ends of the two concrete arch feet are provided with inverted-V-shaped double slopes. The first steel member is in an inverted V shape, and the two ends of the first steel member are buried in the two concrete arch feet respectively. The two second steel members are respectively pressed and fixed on the two inclined surfaces of the double-slope surface; a mortar layer is laid between the second steel member and the inclined plane; and the prestressed rod connecting piece penetrates through and locks the second steel member and the concrete arch springing, and is used for applying precompression to the concrete arch springing. According to the double-arch-foot steel-concrete combined section, the first steel component, the second steel component and the mortar layer can improve the stress characteristic of the concrete arch feet, stable transition of strength and rigidity is achieved, structural force transmission is reliable, the bearing capacity is improved, the concrete arch feet can be prevented from generating tensile stress through the prestressed rod connecting pieces, and the service life of the concrete arch feet is prolonged. Reliable connection is provided for the oblique-crossing special-shaped structure and the concrete skewback.
本申请公开了一种双拱脚钢混结合段，包括混凝土拱脚、第一钢构件、第二钢构件和预应力杆连接件；两个混凝土拱脚的根部斜交，两个混凝土拱脚的顶端设有呈倒V型的双坡面；第一钢构件呈倒V型，其两端分别埋设于两个混凝土拱脚内；两个第二钢构件分别压覆固定于双坡面的两个斜面；第二钢构件和斜面之间铺设有砂浆层；预应力杆连接件穿设并锁紧第二钢构件和与混凝土拱脚，用于向混凝土拱脚施加预压力。该双拱脚钢混结合段利用第一、二钢构件、砂浆层可以改善混凝土拱脚的受力特性，实现强度、刚度的平稳过渡，使结构传力可靠，提高承载能力，利用预应力杆连接件可以避免混凝土拱脚产生拉应力，为斜交的异型结构与混凝土拱座提供可靠连接。
Double-arch-foot steel-concrete combined section
一种双拱脚钢混结合段
SUN QIANG (author) / GUAN QINGJIE (author) / WANG HAO (author) / WANG YANG (author)
2023-06-13
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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