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A platform for research: civil engineering, architecture and urbanism
Lifting and transforming device and method based on existing concrete anti-collision guardrail
The invention discloses a lifting transformation device based on an existing concrete anti-collision guardrail, which comprises an original anti-collision guardrail, a plurality of prefabricated thin-wall type UHPC (Ultra High Performance Concrete) protective shells are arranged on the original anti-collision guardrail, light foam concrete layers are poured between the original anti-collision guardrail and the plurality of prefabricated thin-wall type UHPC protective shells, and the original anti-collision guardrail and the plurality of prefabricated thin-wall type UHPC protective shells are fixedly connected through the light foam concrete layers; and the inner side of the prefabricated thin-wall UHPC protective shell is also fixedly connected with a stiffening grid. According to the lifting and transforming device and method, the structure is simple, and stress is definite; the prefabricated thin-wall type UHPC protective shell is constructed in an assembled mode, and convenience and rapidness are achieved; the energy dissipation effect is achieved, and the original structure is protected and utilized to the maximum; waste work amount is small, and low-carbon and environment-friendly effects are achieved; replacement and repair are convenient; the cost is low and the economy is good; the original concrete guardrail is prevented from being directly collided by a vehicle, the internal force of vehicle collision on the original concrete guardrail and the bridge deck slab is reduced, and therefore the original structure is protected and utilized to the maximum extent and can be not reinforced or slightly reinforced.
本发明公开了一种基于既有混凝土防撞护栏的提升改造装置，包括原防撞护栏，原防撞护栏上设置有多个预制薄壁式UHPC保护壳，原防撞护栏与多个预制薄壁式UHPC保护壳之间灌注有轻质泡沫混凝土层，且通过轻质泡沫混凝土层固定连接；预制薄壁式UHPC保护壳内侧还固定连接有加劲格栅。本发明该提升改造装置及方法结构简单，受力明确；预制薄壁式UHPC保护壳装配化施工，方便快捷；具有消能作用，最大限度保护并利用原结构；废弃工程量小，低碳环保；可更换，修复方便；造价低，经济性好；避免了车辆直接撞击原混凝土护栏，减小了车辆撞击对原混凝土护栏及桥面板的内力，从而最大限度地保护并利用原结构，原结构可不加固或少加固。
Lifting and transforming device and method based on existing concrete anti-collision guardrail
The invention discloses a lifting transformation device based on an existing concrete anti-collision guardrail, which comprises an original anti-collision guardrail, a plurality of prefabricated thin-wall type UHPC (Ultra High Performance Concrete) protective shells are arranged on the original anti-collision guardrail, light foam concrete layers are poured between the original anti-collision guardrail and the plurality of prefabricated thin-wall type UHPC protective shells, and the original anti-collision guardrail and the plurality of prefabricated thin-wall type UHPC protective shells are fixedly connected through the light foam concrete layers; and the inner side of the prefabricated thin-wall UHPC protective shell is also fixedly connected with a stiffening grid. According to the lifting and transforming device and method, the structure is simple, and stress is definite; the prefabricated thin-wall type UHPC protective shell is constructed in an assembled mode, and convenience and rapidness are achieved; the energy dissipation effect is achieved, and the original structure is protected and utilized to the maximum; waste work amount is small, and low-carbon and environment-friendly effects are achieved; replacement and repair are convenient; the cost is low and the economy is good; the original concrete guardrail is prevented from being directly collided by a vehicle, the internal force of vehicle collision on the original concrete guardrail and the bridge deck slab is reduced, and therefore the original structure is protected and utilized to the maximum extent and can be not reinforced or slightly reinforced.
本发明公开了一种基于既有混凝土防撞护栏的提升改造装置，包括原防撞护栏，原防撞护栏上设置有多个预制薄壁式UHPC保护壳，原防撞护栏与多个预制薄壁式UHPC保护壳之间灌注有轻质泡沫混凝土层，且通过轻质泡沫混凝土层固定连接；预制薄壁式UHPC保护壳内侧还固定连接有加劲格栅。本发明该提升改造装置及方法结构简单，受力明确；预制薄壁式UHPC保护壳装配化施工，方便快捷；具有消能作用，最大限度保护并利用原结构；废弃工程量小，低碳环保；可更换，修复方便；造价低，经济性好；避免了车辆直接撞击原混凝土护栏，减小了车辆撞击对原混凝土护栏及桥面板的内力，从而最大限度地保护并利用原结构，原结构可不加固或少加固。
Lifting and transforming device and method based on existing concrete anti-collision guardrail
一种基于既有混凝土防撞护栏的提升改造装置及方法
LI ZHIYONG (author) / CHEN MENGCHONG (author) / SHAO XIAODONG (author) / ZHOU LIPING (author) / YAO ZHIKUN (author) / LI XIAOJIANG (author) / WANG SAIBIN (author)
2022-04-05
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
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Zusätzliche Baumaßnahmen, wie die Ausstattung von Straßen oder die bauliche Ausbildung von Bahnsteigen, Landeplätzen für Hubschrauber, Wegweisern, Schneezäunen oder dgl.
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