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A platform for research: civil engineering, architecture and urbanism
UHPC prefabricated guardrail for expressway
The UHPC prefabricated guardrail for the expressway comprises a sheet framework and a UHPC shell, the sheet framework is composed of metal flat wires and carbon fibers, the metal flat wires are woven into negative poisson ratio plane units of chiral lattice structures, at least three layers of chiral lattice structures are arranged in the direction of any side line of a rectangle of each negative poisson ratio plane unit, and the negative poisson ratio plane units are arranged in the direction of any side line of a rectangle of each negative poisson ratio plane unit. The carbon fibers are connected in series by taking the negative poisson ratio plane units as section units to form a sheet framework; according to the UHPC shell, a prefabricated guardrail module is formed after UHPC infiltrates, wraps the framework and is cured. Metal flat wires and carbon fibers are adopted to form a framework, a UHPC material is poured to form the prefabricated wave-shaped guardrail, the energy absorption capacity and the impact resistance of the guardrail are improved while the self weight is reduced, the guardrail has a hydrophobic surface to achieve the anti-corrosion effect by magnetically controlling the density of micro-straight steel fibers in the UHPC material and the exposure form of the UHPC curing surface, and the service life of the guardrail is prolonged.
本发明涉及一种用于高速公路的UHPC预制护栏，包括薄片骨架和UHPC壳体，所述薄片骨架由金属扁丝和碳纤维构成，金属扁丝编织成具有手性晶格结构的负泊松比平面单元，所述负泊松比平面单元的矩形任意边线方向具有至少三层手性晶格结构，碳纤维以负泊松比平面单元为截面单元进行串联构成薄片骨架；所述UHPC壳体由UHPC浸润包覆所述骨架固化后形成预制护栏模块。采用金属扁丝和碳纤维构成骨架，浇筑UHPC材料形成预制波形护栏，降低自重的同时提升护栏能量吸收能力和抗冲击能力，并且通过磁控UHPC材料内的微直钢纤维的密度和UHPC固化表面的暴露形态使其具有疏水性表面实现防腐效果，延长护栏寿命。
UHPC prefabricated guardrail for expressway
The UHPC prefabricated guardrail for the expressway comprises a sheet framework and a UHPC shell, the sheet framework is composed of metal flat wires and carbon fibers, the metal flat wires are woven into negative poisson ratio plane units of chiral lattice structures, at least three layers of chiral lattice structures are arranged in the direction of any side line of a rectangle of each negative poisson ratio plane unit, and the negative poisson ratio plane units are arranged in the direction of any side line of a rectangle of each negative poisson ratio plane unit. The carbon fibers are connected in series by taking the negative poisson ratio plane units as section units to form a sheet framework; according to the UHPC shell, a prefabricated guardrail module is formed after UHPC infiltrates, wraps the framework and is cured. Metal flat wires and carbon fibers are adopted to form a framework, a UHPC material is poured to form the prefabricated wave-shaped guardrail, the energy absorption capacity and the impact resistance of the guardrail are improved while the self weight is reduced, the guardrail has a hydrophobic surface to achieve the anti-corrosion effect by magnetically controlling the density of micro-straight steel fibers in the UHPC material and the exposure form of the UHPC curing surface, and the service life of the guardrail is prolonged.
本发明涉及一种用于高速公路的UHPC预制护栏，包括薄片骨架和UHPC壳体，所述薄片骨架由金属扁丝和碳纤维构成，金属扁丝编织成具有手性晶格结构的负泊松比平面单元，所述负泊松比平面单元的矩形任意边线方向具有至少三层手性晶格结构，碳纤维以负泊松比平面单元为截面单元进行串联构成薄片骨架；所述UHPC壳体由UHPC浸润包覆所述骨架固化后形成预制护栏模块。采用金属扁丝和碳纤维构成骨架，浇筑UHPC材料形成预制波形护栏，降低自重的同时提升护栏能量吸收能力和抗冲击能力，并且通过磁控UHPC材料内的微直钢纤维的密度和UHPC固化表面的暴露形态使其具有疏水性表面实现防腐效果，延长护栏寿命。
UHPC prefabricated guardrail for expressway
一种用于高速公路的UHPC预制护栏
LIAO LIN (author) / DONG XUMING (author) / SHEN LITAO (author) / CUI DONGXIA (author) / WEI YIQIANG (author) / HOU ZEBIAO (author) / ZHAO YUNCHUAN (author) / GAO GUOQI (author) / YUAN RUIDONG (author) / CAO YU (author)
2024-01-09
Patent
Electronic Resource
Chinese
IPC:
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.
/
C04B
Kalk
,
LIME