A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Pier anti-collision facility with negative poisson ratio effect and design method thereof
The invention discloses a pier anti-collision facility with a negative poisson ratio effect and a design method thereof. The pier anti-collision facility comprises a negative poisson ratio backchirality concave structure frame, a composite shell and a foam filling core. Due to a deformation characteristic of tension and compression of a negative poisson ratio hole structure, the facility has a good energy absorption characteristic. According to the negative poisson ratio backchirality concave structure, a concave angle is creatively introduced on the basis of a backchirality structure so thatthe negative poisson ratio effect is more obvious when a load is borne. When the negative poisson ratio structure frame bears ship impact, the negative poisson ratio structure frame is transversely contracted when being pressed. Due to the buffering effect of the foam filling core on contraction deformation of the negative poisson ratio frame, the anti-collision facility has a longer stress platform section, and compared with a traditional anti-collision facility made of positive poisson ratio materials, the anti-collision energy dissipation performance of the anti-collision facility is better. In addition, due to the characteristics of light weight and corrosion resistance of a fiber reinforced composite material, the anti-collision facility can float on a water surface.
本发明公开了一种具有负泊松比效应的桥墩防撞设施及其设计方法，包括负泊松比反手性内凹结构框架、复合材料外壳、泡沫填充核心。由于负泊松比孔洞结构拉胀压缩的变形特性，使设施具有良好的吸能特性。负泊松比反手性内凹结构在反手性结构的基础上创造性的引入内凹角，使其在承受荷载时负泊松比效应更明显。在承受船舶撞击时，负泊松比结构框架在受压时发生横向收缩。由于泡沫填充核心对负泊松比框架收缩变形的缓冲作用，使防撞设施具有更长的应力平台段，相比正泊松比材料传统防撞设施，本发明的抗冲击耗能性能更好。此外，由于纤维增强复合材料轻质且耐腐蚀的特点，防撞设施可以漂浮在水面。
Pier anti-collision facility with negative poisson ratio effect and design method thereof
The invention discloses a pier anti-collision facility with a negative poisson ratio effect and a design method thereof. The pier anti-collision facility comprises a negative poisson ratio backchirality concave structure frame, a composite shell and a foam filling core. Due to a deformation characteristic of tension and compression of a negative poisson ratio hole structure, the facility has a good energy absorption characteristic. According to the negative poisson ratio backchirality concave structure, a concave angle is creatively introduced on the basis of a backchirality structure so thatthe negative poisson ratio effect is more obvious when a load is borne. When the negative poisson ratio structure frame bears ship impact, the negative poisson ratio structure frame is transversely contracted when being pressed. Due to the buffering effect of the foam filling core on contraction deformation of the negative poisson ratio frame, the anti-collision facility has a longer stress platform section, and compared with a traditional anti-collision facility made of positive poisson ratio materials, the anti-collision energy dissipation performance of the anti-collision facility is better. In addition, due to the characteristics of light weight and corrosion resistance of a fiber reinforced composite material, the anti-collision facility can float on a water surface.
本发明公开了一种具有负泊松比效应的桥墩防撞设施及其设计方法，包括负泊松比反手性内凹结构框架、复合材料外壳、泡沫填充核心。由于负泊松比孔洞结构拉胀压缩的变形特性，使设施具有良好的吸能特性。负泊松比反手性内凹结构在反手性结构的基础上创造性的引入内凹角，使其在承受荷载时负泊松比效应更明显。在承受船舶撞击时，负泊松比结构框架在受压时发生横向收缩。由于泡沫填充核心对负泊松比框架收缩变形的缓冲作用，使防撞设施具有更长的应力平台段，相比正泊松比材料传统防撞设施，本发明的抗冲击耗能性能更好。此外，由于纤维增强复合材料轻质且耐腐蚀的特点，防撞设施可以漂浮在水面。
Pier anti-collision facility with negative poisson ratio effect and design method thereof
一种具有负泊松比效应的桥墩防撞设施及其设计方法
REN XIN (author) / ZHANG XUEGANG (author) / LUO CHEN (author) / ZHANG YI (author) / HAN CHUANZHEN (author) / ZHANG XIANGYU (author)
2021-03-30
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
/
E01F
ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
,
Zusätzliche Baumaßnahmen, wie die Ausstattung von Straßen oder die bauliche Ausbildung von Bahnsteigen, Landeplätzen für Hubschrauber, Wegweisern, Schneezäunen oder dgl.
/
E02B
HYDRAULIC ENGINEERING
,
Wasserbau
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