A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Combined bridge deck with negative Poisson's ratio effect
The combined bridge deck with the negative Poisson's ratio effect comprises steel bars, shearing force connecting pieces and a corrugated plate, the corrugated plate is of a corrugated structure which can be compressed in the vertical direction, the plate-shaped shearing force connecting pieces are vertically arranged in grooves with upward notches of the corrugated plate respectively, oval through holes which are distributed at intervals in a staggered mode are formed in the shearing force connecting pieces, and the oval through holes are communicated with the corrugated plate. And the steel bars are respectively inserted into the oval through holes corresponding to the shearing force connecting pieces, and are positioned above the corrugated plate. The oval through holes are formed in the shearing force connecting piece, so that the poisson ratio of the shearing force connecting piece is similar to that of concrete, and the effect that the shearing force connecting piece and the concrete are cooperatively stressed is achieved. By adopting the corrugated plate which can be compressed in the vertical direction, the size of the deformed corrugated plate in the direction perpendicular to the stress direction is shrunk, so that the negative Poisson's ratio effect is shown on the whole, and the combined bridge deck has good impact resistance and good energy dissipation and shock absorption effects.
本发明公开了一种具有负泊松比效应的组合桥面板，包括钢筋、剪力连接件和波纹板，波纹板为垂直方向可压缩的波纹结构，且波纹板槽口向上的凹槽中分别垂直设有板状的剪力连接件，剪力连接件上均开设有间隔交错分布的椭圆形通孔，钢筋分别穿插在剪力连接件对应的椭圆形通孔中，且位于波纹板的上方。本发明通过在剪力连接件上开设椭圆形通孔，使得剪力连接件与混凝土的泊松比相近，以实现剪力连接件与混凝土协同受力的效果。采用在垂直方向可压缩的波纹板，使得变形后的波纹板在垂直于受力方向的尺寸收缩，以从整体上表现出负泊松比效应，以使得组合桥面板具有良好的抗冲击性和良好的消能减震作用。
Combined bridge deck with negative Poisson's ratio effect
The combined bridge deck with the negative Poisson's ratio effect comprises steel bars, shearing force connecting pieces and a corrugated plate, the corrugated plate is of a corrugated structure which can be compressed in the vertical direction, the plate-shaped shearing force connecting pieces are vertically arranged in grooves with upward notches of the corrugated plate respectively, oval through holes which are distributed at intervals in a staggered mode are formed in the shearing force connecting pieces, and the oval through holes are communicated with the corrugated plate. And the steel bars are respectively inserted into the oval through holes corresponding to the shearing force connecting pieces, and are positioned above the corrugated plate. The oval through holes are formed in the shearing force connecting piece, so that the poisson ratio of the shearing force connecting piece is similar to that of concrete, and the effect that the shearing force connecting piece and the concrete are cooperatively stressed is achieved. By adopting the corrugated plate which can be compressed in the vertical direction, the size of the deformed corrugated plate in the direction perpendicular to the stress direction is shrunk, so that the negative Poisson's ratio effect is shown on the whole, and the combined bridge deck has good impact resistance and good energy dissipation and shock absorption effects.
本发明公开了一种具有负泊松比效应的组合桥面板，包括钢筋、剪力连接件和波纹板，波纹板为垂直方向可压缩的波纹结构，且波纹板槽口向上的凹槽中分别垂直设有板状的剪力连接件，剪力连接件上均开设有间隔交错分布的椭圆形通孔，钢筋分别穿插在剪力连接件对应的椭圆形通孔中，且位于波纹板的上方。本发明通过在剪力连接件上开设椭圆形通孔，使得剪力连接件与混凝土的泊松比相近，以实现剪力连接件与混凝土协同受力的效果。采用在垂直方向可压缩的波纹板，使得变形后的波纹板在垂直于受力方向的尺寸收缩，以从整体上表现出负泊松比效应，以使得组合桥面板具有良好的抗冲击性和良好的消能减震作用。
Combined bridge deck with negative Poisson's ratio effect
一种具有负泊松比效应的组合桥面板
LIU SUMEI (author) / LU MINGFEI (author) / DING HANSHAN (author) / ZHONG WEN (author) / JIANG YANBIN (author)
2024-07-12
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
Nonlinear Analysis of the Poisson's Ratio of Negative Poisson's Ratio Foams
| British Library Online Contents | 1995
Negative Poisson's ratio polyethylene foams
| British Library Online Contents | 2001
| British Library Online Contents | 2012