Partially-filled simply-supported high-strength steel pipe truss girder structure and manufacturing method thereof

• Main Authors: HUANG WENJIN, CHEN YIJUN, KE LIWEI, WENG YIHAN, LIN BENQING
• Format: Patent
• Language: Chinese; English
• Published: 04.07.2023
• Subjects: ASSEMBLY OF BRIDGES; CONSTRUCTION OF BRIDGES; CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES; FIXED CONSTRUCTIONS; OR VIADUCTS

The invention relates to a partially-filled simply-supported high-strength steel pipe truss girder structure which comprises a pressed chord member, a pulled chord member, a web member and a lower end parallel connection, perforated steel plate stiffening ribs are fixedly arranged in the pressed chord member and the pulled chord member in a full-length mode, a pipe of the pressed chord member is filled with an HSC in a full-length mode, and a fulcrum section in the pipe of the pulled chord member is filled with common concrete. And common concrete is also filled in the web member pipe of the lower end parallel connection and fulcrum section. By means of the structure and the measures, the strength, rigidity and bearing capacity of the truss girder can be greatly improved, the section height and the rod piece size are reduced, and the spanning capacity of the truss girder is improved. 本发明涉及一种部分填充的简支高强钢管桁梁结构，包括受压弦杆、受拉弦杆、腹杆、下端平联，所述受压弦杆与受拉弦杆内部通长固设有开孔钢板加劲肋，所述受压弦杆的管内通长填充有HSC，所述受拉弦杆的管内在支点区段填充有普通混凝土，且下端平联及支点区段的腹杆管内也填