A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Fabricated perforated waffle bridge deck slab I-beam structure
The invention belongs to the field of bridge engineering, and particularly relates to an assembly type perforated waffle bridge deck I-shaped beam structure which comprises a UHPC I-shaped main beam, a perforated UHPC waffle bridge deck, a transverse partition plate and a shear connector, a bent steel bar is pre-embedded in the top plate position of the UHPC I-shaped main beam during prefabrication to serve as a shear connector, and the transverse partition plate is embedded in the top plate position of the UHPC I-shaped main beam. Prefabricated UHPC waffle bridge panels with holes are connected with the I-shaped main beams by pouring UHPC materials at the positions of the shear connecting keys, transverse joints and longitudinal joints are reserved between the UHPC waffle bridge panels with the holes, UHPC is poured at the positions of the joints for connection, and in order to guarantee transverse connection between the main beams, an assembly-free type transverse partition plate structure is adopted. The beam height and the self weight of the structure are reduced by utilizing the excellent tensile property and shearing resistance of UHPC, the defect that a traditional common concrete bridge deck slab is prone to cracking is overcome, and the bonding performance between beam and slab interfaces is improved.
本发明属于桥梁工程领域，具体涉及一种装配式开孔华夫桥面板工字梁结构，包括UHPC工字型主梁、带开孔的UHPC华夫桥面板、横隔板和抗剪连接件，UHPC工字型主梁的顶板位置在预制时预埋有弯曲钢筋作为剪力连接键，预制的带开孔UHPC华夫桥面板通过在剪力连接键部位浇筑UHPC材料与工字型主梁相连接，开孔的UHPC华夫桥面板之间留有横向接缝和纵向接缝，在接缝处的位置浇筑UHPC进行连接，为保证各个主梁之间的横向联系，采用免装配式横隔板结构，本发明利用UHPC优异的抗拉性能和抗剪性能减小结构的梁高和自重，克服传统普通混凝土桥面板易开裂并提高了梁板界面间的粘结性能。
Fabricated perforated waffle bridge deck slab I-beam structure
The invention belongs to the field of bridge engineering, and particularly relates to an assembly type perforated waffle bridge deck I-shaped beam structure which comprises a UHPC I-shaped main beam, a perforated UHPC waffle bridge deck, a transverse partition plate and a shear connector, a bent steel bar is pre-embedded in the top plate position of the UHPC I-shaped main beam during prefabrication to serve as a shear connector, and the transverse partition plate is embedded in the top plate position of the UHPC I-shaped main beam. Prefabricated UHPC waffle bridge panels with holes are connected with the I-shaped main beams by pouring UHPC materials at the positions of the shear connecting keys, transverse joints and longitudinal joints are reserved between the UHPC waffle bridge panels with the holes, UHPC is poured at the positions of the joints for connection, and in order to guarantee transverse connection between the main beams, an assembly-free type transverse partition plate structure is adopted. The beam height and the self weight of the structure are reduced by utilizing the excellent tensile property and shearing resistance of UHPC, the defect that a traditional common concrete bridge deck slab is prone to cracking is overcome, and the bonding performance between beam and slab interfaces is improved.
本发明属于桥梁工程领域，具体涉及一种装配式开孔华夫桥面板工字梁结构，包括UHPC工字型主梁、带开孔的UHPC华夫桥面板、横隔板和抗剪连接件，UHPC工字型主梁的顶板位置在预制时预埋有弯曲钢筋作为剪力连接键，预制的带开孔UHPC华夫桥面板通过在剪力连接键部位浇筑UHPC材料与工字型主梁相连接，开孔的UHPC华夫桥面板之间留有横向接缝和纵向接缝，在接缝处的位置浇筑UHPC进行连接，为保证各个主梁之间的横向联系，采用免装配式横隔板结构，本发明利用UHPC优异的抗拉性能和抗剪性能减小结构的梁高和自重，克服传统普通混凝土桥面板易开裂并提高了梁板界面间的粘结性能。
Fabricated perforated waffle bridge deck slab I-beam structure
一种装配式开孔华夫桥面板工字梁结构
DUAN XIAOWEI (author) / AI JIE (author) / CHE JUN (author) / CHEN YANFEI (author) / SHEN HAOHAO (author) / WEI YANGYANG (author)
2022-12-13
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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