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Web member structure of concrete-filled steel tube truss type main arch and bridge
The invention discloses a web member structure of a concrete-filled steel tube truss type main arch and a bridge. The web member structure comprises a plurality of sets of web member assemblies. Eachweb member assembly comprises a transverse web member and two inclined web members, the transverse web member and the two inclined web members form a triangular unit, the two ends of the transverse web member are used for being connected with the upper chord and the lower chord of the main arch on the same side respectively, one end of one inclined web member is used for being connected with the upper chord, and the other side of the inclined web member is connected with the middle of the transverse web member in the adjacent web member assembly; one end of the other inclined web member is used for being connected with the lower chord, and the other side of the inclined web member is connected with the middle of the transverse web member in the adjacent web member assembly. The free lengths of the inclined web members and the transverse web members are smaller than or equal to the height of the section of the main arch, the free lengths and slenderness ratios of the web members are reduced, if cutting is conducted in the direction of the cross section of the main arch, at least two intersection points exist between the tangential direction and the web member assemblies, compressiverigidity and shear rigidity of the web members are improved, and local instability of the main arch web members is effectively avoided.
本发明公开了一种钢管混凝土桁式主拱的腹杆结构及桥梁，包括若干组腹杆组件；腹杆组件包括横腹杆和两根斜腹杆，横腹杆和两根斜腹杆围成三角单元，横腹杆的两端分别用于连接同侧主拱的上弦杆和下弦杆，其中一根斜腹杆的一端用于与上弦杆相连接，该斜腹杆的另一侧与相邻腹杆组件中的横腹杆中部相连接；另一根斜腹杆的一端用于与下弦杆相连接，该斜腹杆的另一侧与相邻腹杆组件中的横腹杆中部相连接。斜腹杆和横腹杆的自由长度均小于等于主拱截面高度，减小腹杆的自由长度和长细比，且若沿主拱横截面方向进行切割，其切线方向与腹杆组件至少有两个交点，提高了腹杆的抗压刚度和抗剪刚度，有效避免了主拱腹杆局部失稳现象。
Web member structure of concrete-filled steel tube truss type main arch and bridge
The invention discloses a web member structure of a concrete-filled steel tube truss type main arch and a bridge. The web member structure comprises a plurality of sets of web member assemblies. Eachweb member assembly comprises a transverse web member and two inclined web members, the transverse web member and the two inclined web members form a triangular unit, the two ends of the transverse web member are used for being connected with the upper chord and the lower chord of the main arch on the same side respectively, one end of one inclined web member is used for being connected with the upper chord, and the other side of the inclined web member is connected with the middle of the transverse web member in the adjacent web member assembly; one end of the other inclined web member is used for being connected with the lower chord, and the other side of the inclined web member is connected with the middle of the transverse web member in the adjacent web member assembly. The free lengths of the inclined web members and the transverse web members are smaller than or equal to the height of the section of the main arch, the free lengths and slenderness ratios of the web members are reduced, if cutting is conducted in the direction of the cross section of the main arch, at least two intersection points exist between the tangential direction and the web member assemblies, compressiverigidity and shear rigidity of the web members are improved, and local instability of the main arch web members is effectively avoided.
本发明公开了一种钢管混凝土桁式主拱的腹杆结构及桥梁，包括若干组腹杆组件；腹杆组件包括横腹杆和两根斜腹杆，横腹杆和两根斜腹杆围成三角单元，横腹杆的两端分别用于连接同侧主拱的上弦杆和下弦杆，其中一根斜腹杆的一端用于与上弦杆相连接，该斜腹杆的另一侧与相邻腹杆组件中的横腹杆中部相连接；另一根斜腹杆的一端用于与下弦杆相连接，该斜腹杆的另一侧与相邻腹杆组件中的横腹杆中部相连接。斜腹杆和横腹杆的自由长度均小于等于主拱截面高度，减小腹杆的自由长度和长细比，且若沿主拱横截面方向进行切割，其切线方向与腹杆组件至少有两个交点，提高了腹杆的抗压刚度和抗剪刚度，有效避免了主拱腹杆局部失稳现象。
Web member structure of concrete-filled steel tube truss type main arch and bridge
一种钢管混凝土桁式主拱的腹杆结构及桥梁
ZHAO YICHENG (author) / MOU TINGMIN (author) / FAN BIKUN (author) / NI CHUNMEI (author) / LIANG JIAN (author) / LI SHENG (author) / XU NUO (author) / SUN CAIZHI (author) / ZOU QI (author) / LI CHENGJUN (author)
2021-03-12
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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