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A platform for research: civil engineering, architecture and urbanism
Bridge deck structure capable of restraining UHPC in partitioned mode
The invention belongs to the field of bridge structures, and in particular relates to a bridge deck structure capable of restraining UHPC in a partitioned mode. The bridge deck structure comprises anorthotropic plate; the orthotropic plate is provided with a plurality of longitudinal ribs and transverse ribs which are perpendicular to one another in the longitudinal direction and the transverse direction; at least one anti-shearing piece is arranged in any lattice area formed by the transverse ribs and the longitudinal ribs; UHPC thin layers with the expansion rate not smaller than 0.2% are laid on the orthotropic plate, the transverse ribs, the longitudinal ribs and the anti-shearing piece; according to the bridge deck structure, the longitudinal ribs and the transverse ribs which are perpendicular to each other in the longitudinal direction and the transverse direction and the anti-shearing piece are adopted to replace densely-distributed stud groups, so that the shearing force connection degree between the UHPC thin layer and the orthotropic plate is higher, and combination is tighter; lattice areas formed by the longitudinal ribs and the transverse ribs can effectively restrain the UHPC thin layer with the expansion rate not smaller than 0.2%, so that self-prestress is formed on the UHPC thin layer, and then excellent mechanical property of UHPC is brought into full play;the transverse ribs and the longitudinal ribs are perforated plates, and longitudinal steel bars and transverse steel bars which are perpendicular to each other in the longitudinal direction and the transverse direction are arranged at the perforated positions of the transverse ribs and the longitudinal ribs respectively, so that an effective PBL connecting piece can be formed.
本发明属于桥梁结构领域，具体是涉及到一种可分区约束UHPC的桥面结构，包括正交异性板，正交异性板上设置有纵横向互相垂直的若干根纵肋和横肋，横肋和纵肋组成的任一格构区域内至少设置有1个抗剪件，所述正交异性板、横肋、纵肋和抗剪件上铺装有膨胀率不小于0.2％的UHPC薄层，本桥面结构采用纵横向互相垂直的纵肋和横肋与抗剪件代替密集分布的栓钉群，可使UHPC薄层与正交异性板之间剪力连接程度更高、结合更为紧密。纵肋和横肋形成的格构区域可有效约束膨胀率不小于0.2％的UHPC薄层，使UHPC薄层形成自预应力，进而充分发挥UHPC优越的力学性能，所述横肋和纵肋为开孔板，横肋和纵肋的开孔处分别设置有纵横向互相垂直的纵向钢筋和横向钢筋，可形成有效的PBL连接件。
Bridge deck structure capable of restraining UHPC in partitioned mode
The invention belongs to the field of bridge structures, and in particular relates to a bridge deck structure capable of restraining UHPC in a partitioned mode. The bridge deck structure comprises anorthotropic plate; the orthotropic plate is provided with a plurality of longitudinal ribs and transverse ribs which are perpendicular to one another in the longitudinal direction and the transverse direction; at least one anti-shearing piece is arranged in any lattice area formed by the transverse ribs and the longitudinal ribs; UHPC thin layers with the expansion rate not smaller than 0.2% are laid on the orthotropic plate, the transverse ribs, the longitudinal ribs and the anti-shearing piece; according to the bridge deck structure, the longitudinal ribs and the transverse ribs which are perpendicular to each other in the longitudinal direction and the transverse direction and the anti-shearing piece are adopted to replace densely-distributed stud groups, so that the shearing force connection degree between the UHPC thin layer and the orthotropic plate is higher, and combination is tighter; lattice areas formed by the longitudinal ribs and the transverse ribs can effectively restrain the UHPC thin layer with the expansion rate not smaller than 0.2%, so that self-prestress is formed on the UHPC thin layer, and then excellent mechanical property of UHPC is brought into full play;the transverse ribs and the longitudinal ribs are perforated plates, and longitudinal steel bars and transverse steel bars which are perpendicular to each other in the longitudinal direction and the transverse direction are arranged at the perforated positions of the transverse ribs and the longitudinal ribs respectively, so that an effective PBL connecting piece can be formed.
本发明属于桥梁结构领域，具体是涉及到一种可分区约束UHPC的桥面结构，包括正交异性板，正交异性板上设置有纵横向互相垂直的若干根纵肋和横肋，横肋和纵肋组成的任一格构区域内至少设置有1个抗剪件，所述正交异性板、横肋、纵肋和抗剪件上铺装有膨胀率不小于0.2％的UHPC薄层，本桥面结构采用纵横向互相垂直的纵肋和横肋与抗剪件代替密集分布的栓钉群，可使UHPC薄层与正交异性板之间剪力连接程度更高、结合更为紧密。纵肋和横肋形成的格构区域可有效约束膨胀率不小于0.2％的UHPC薄层，使UHPC薄层形成自预应力，进而充分发挥UHPC优越的力学性能，所述横肋和纵肋为开孔板，横肋和纵肋的开孔处分别设置有纵横向互相垂直的纵向钢筋和横向钢筋，可形成有效的PBL连接件。
Bridge deck structure capable of restraining UHPC in partitioned mode
一种可分区约束UHPC的桥面结构
FANG ZHI (author) / JIANG ZHENGWEN (author) / PEI BINGZHI (author) / TAN XINGYU (author) / PENG ZHONGLI (author)
2020-10-16
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
| European Patent Office | 2022
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