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A platform for research: civil engineering, architecture and urbanism
Structure for preventing concrete-filled steel tube arch bridge arch foot steel tube outer wrapped concrete from cracking
The invention discloses a structure for preventing concrete-filled steel tube arch bridge arch foot steel tube outer wrapped concrete from cracking. An exposed arch rib section (D) is composed of a conventional exposed arch rib section (B), chord member shear nails (15), a bearing plate (16), chord member inner side stiffening rings (17), bearing plate stiffening rib plates (18), an annular sealing steel belt (19) and a rubber water stop strip (20). Shear nails (15) are welded to the lowermost ends of arch rib upper chords (1) and arch rib lower chords (2) in the exposed arch rib sections (D)and the outer surfaces of the bearing plate (16), embedded section upper chords (3) and embedded section lower chords (4). The defect that in the prior art, due to the fact that the side resistance between the outer pipe wall of an arch rib steel tube and concrete is too large, arch foot steel outer wrapped concrete cracks is overcome, and the advantages that it can be guaranteed that an arch footof an arch bridge made of concrete-filled steel tubes has enough durability and safety and the service life are achieved.
本发明公布了避免钢管混凝土拱桥拱脚钢管外包混凝土开裂的结构；外露拱肋段(D)由常规外露拱肋段(B)、弦杆剪力钉(15)、承压板(16)、弦杆内侧加劲环(17)、承压板加劲肋板(18)、环装密封钢带(19)和橡胶止水条(20)组成；所述的外露拱肋段(D)中的拱肋上弦杆(1)和拱肋下弦杆(2)的最下端与承压板(16)、预埋段上弦杆(3)和预埋段下弦杆(4)的外表面均焊接有剪力钉(15)；本发明克服了现有技术中由于拱肋钢管外管壁与混凝土之间的侧阻力过大引起拱脚钢管外包混凝土开裂的缺点，具有能保证钢管混凝土这一类拱桥拱脚处具有足够的耐久性、安全性和使用寿命的优点。
Structure for preventing concrete-filled steel tube arch bridge arch foot steel tube outer wrapped concrete from cracking
The invention discloses a structure for preventing concrete-filled steel tube arch bridge arch foot steel tube outer wrapped concrete from cracking. An exposed arch rib section (D) is composed of a conventional exposed arch rib section (B), chord member shear nails (15), a bearing plate (16), chord member inner side stiffening rings (17), bearing plate stiffening rib plates (18), an annular sealing steel belt (19) and a rubber water stop strip (20). Shear nails (15) are welded to the lowermost ends of arch rib upper chords (1) and arch rib lower chords (2) in the exposed arch rib sections (D)and the outer surfaces of the bearing plate (16), embedded section upper chords (3) and embedded section lower chords (4). The defect that in the prior art, due to the fact that the side resistance between the outer pipe wall of an arch rib steel tube and concrete is too large, arch foot steel outer wrapped concrete cracks is overcome, and the advantages that it can be guaranteed that an arch footof an arch bridge made of concrete-filled steel tubes has enough durability and safety and the service life are achieved.
本发明公布了避免钢管混凝土拱桥拱脚钢管外包混凝土开裂的结构；外露拱肋段(D)由常规外露拱肋段(B)、弦杆剪力钉(15)、承压板(16)、弦杆内侧加劲环(17)、承压板加劲肋板(18)、环装密封钢带(19)和橡胶止水条(20)组成；所述的外露拱肋段(D)中的拱肋上弦杆(1)和拱肋下弦杆(2)的最下端与承压板(16)、预埋段上弦杆(3)和预埋段下弦杆(4)的外表面均焊接有剪力钉(15)；本发明克服了现有技术中由于拱肋钢管外管壁与混凝土之间的侧阻力过大引起拱脚钢管外包混凝土开裂的缺点，具有能保证钢管混凝土这一类拱桥拱脚处具有足够的耐久性、安全性和使用寿命的优点。
Structure for preventing concrete-filled steel tube arch bridge arch foot steel tube outer wrapped concrete from cracking
避免钢管混凝土拱桥拱脚钢管外包混凝土开裂的结构
ZHAO YINRU (author) / YAN HAIQING (author) / TIAN QING (author) / YOU LING (author) / ZHOU TAO (author)
2021-01-08
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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