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A platform for research: civil engineering, architecture and urbanism
Concrete filled steel tube truss structure bridge chord member and web member connecting node structure
The invention relates to a concrete filled steel tube truss structure bridge chord member and web member connecting node structure, which comprises a chord member and a plurality of web members, the end parts of the web members are connected with the chord member in a welding manner, an eccentric value e formed by connecting two adjacent web members and the chord member meets the condition that e/d0 is more than 0.25 and less than or equal to 0.5, and a web member gap g between two adjacent web members is more than 50mm. The eccentric value e of the steel pipe concrete joint is increased, so that the gap g of the web members is widened, mutual superposition of adverse effects of close-distance welding of the ends of the two web members can be avoided, the welding quality is guaranteed, enough operation space is provided for weld joint grinding at the joint position, and the fatigue strength of the intersecting welding joint is improved. After the web member gap g is enlarged, the web member gap g serving as a unit segment division point can also meet the requirement of specifications for the clear spacing of welding seams, only chord member segmented joints are generated in the division mode, web member segmented joints are avoided, and therefore 360-degree penetration welding work with the maximum difficulty is avoided from being carried out at high altitude on site, the connection number of field joints and the construction difficulty are reduced. The construction quality is ensured.
本发明涉及一种钢管混凝土桁式结构桥梁弦杆与腹杆连接节点构造，包括弦杆和多根腹杆，腹杆的端部与弦杆焊接连接，相邻两腹杆与弦杆连接形成的偏心值e满足0.25＜e/d0≤0.5，相邻两腹杆之间的腹杆间隙g大于50mm。通过加大钢管混凝土节点偏心值e，从而放宽腹杆间隙g，可以避免两腹杆端头近距离焊接的不利影响的相互叠加，保证焊接质量，在节点位置有足够的操作空间进行焊缝修磨，提高相贯焊接节点疲劳强度。加大腹杆间隙g后，在腹杆间隙g中作为单元节段划分点也能够满足规范对焊缝净间距的要求，该划分方式只产生弦杆分段接头，避免了腹杆分段接头，从而避免了现场高空进行难度最大的360°熔透焊接工作，减小现场接头连接数量和施工难度，保证施工质量。
Concrete filled steel tube truss structure bridge chord member and web member connecting node structure
The invention relates to a concrete filled steel tube truss structure bridge chord member and web member connecting node structure, which comprises a chord member and a plurality of web members, the end parts of the web members are connected with the chord member in a welding manner, an eccentric value e formed by connecting two adjacent web members and the chord member meets the condition that e/d0 is more than 0.25 and less than or equal to 0.5, and a web member gap g between two adjacent web members is more than 50mm. The eccentric value e of the steel pipe concrete joint is increased, so that the gap g of the web members is widened, mutual superposition of adverse effects of close-distance welding of the ends of the two web members can be avoided, the welding quality is guaranteed, enough operation space is provided for weld joint grinding at the joint position, and the fatigue strength of the intersecting welding joint is improved. After the web member gap g is enlarged, the web member gap g serving as a unit segment division point can also meet the requirement of specifications for the clear spacing of welding seams, only chord member segmented joints are generated in the division mode, web member segmented joints are avoided, and therefore 360-degree penetration welding work with the maximum difficulty is avoided from being carried out at high altitude on site, the connection number of field joints and the construction difficulty are reduced. The construction quality is ensured.
本发明涉及一种钢管混凝土桁式结构桥梁弦杆与腹杆连接节点构造，包括弦杆和多根腹杆，腹杆的端部与弦杆焊接连接，相邻两腹杆与弦杆连接形成的偏心值e满足0.25＜e/d0≤0.5，相邻两腹杆之间的腹杆间隙g大于50mm。通过加大钢管混凝土节点偏心值e，从而放宽腹杆间隙g，可以避免两腹杆端头近距离焊接的不利影响的相互叠加，保证焊接质量，在节点位置有足够的操作空间进行焊缝修磨，提高相贯焊接节点疲劳强度。加大腹杆间隙g后，在腹杆间隙g中作为单元节段划分点也能够满足规范对焊缝净间距的要求，该划分方式只产生弦杆分段接头，避免了腹杆分段接头，从而避免了现场高空进行难度最大的360°熔透焊接工作，减小现场接头连接数量和施工难度，保证施工质量。
Concrete filled steel tube truss structure bridge chord member and web member connecting node structure
一种钢管混凝土桁式结构桥梁弦杆与腹杆连接节点构造
MOU TINGMIN (author) / KANG LING (author) / ZHAO YICHENG (author) / FAN BIKUN (author) / SUN CAIZHI (author) / DI BINGZHEN (author) / NI CHUNMEI (author) / XU NUO (author) / LI CHENGJUN (author) / LI CHANG (author)
2021-09-17
Patent
Electronic Resource
Chinese
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