A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Magnetic levitation UHPC box girder
The invention discloses a magnetic levitation UHPC box girder. The box girder comprises a box girder top plate, a box girder bottom plate and a box girder web arranged between the box girder top plateand the box girder bottom plate; box girder transverse ribs are arranged between the box girder webs in the transverse direction at intervals, the top of each box girder transverse rib is fixedly connected with the box girder top plate, the two transverse ends of each box girder transverse rib are fixedly connected with the inner sides of the box girder webs respectively, and the box girder transverse ribs are located in a pressed area of the box girder top plate to prevent warping instability of a thin plate; the box girder top plate, the box girder bottom plate and the box girder web are all made of UHPC materials so that the beam height and thicknesses of the box girder top plate, the box girder bottom plate and the web are reduced. The box girder is suitable for maglev transportation,the top plate, the bottom plate and the web of the box girder are made of UHPC materials, meanwhile, thicknesses of the top plate, the bottom plate and the web of the box girder are reduced, rigidityis improved, the strict deformation requirement of high-speed maglev for a bridge structure is met, meanwhile, the section square amount is reduced, construction is convenient, and the use amount ofa lower structure is reduced; the transverse ribs and the transverse partition plates are made of common concrete, so the structure cost is reduced.
本发明公开了一种磁悬浮UHPC箱梁，包括箱梁顶板、箱梁底板以及设于两者之间的箱梁腹板；所述箱梁腹板横向之间间隔设有箱梁横肋，各箱梁横肋顶部与所述箱梁顶板固结，横向两端分别与所述箱梁腹板内侧固结，所述箱梁横肋位于箱梁顶板受压区域以防止薄板翘曲失稳；所述箱梁顶板、箱梁底板以及箱梁腹板均采用UHPC材料，以减少梁高以及箱梁顶板、底板、腹板的厚度。本发明适用于磁浮交通，箱梁顶板、底板、腹板采用UHPC材料，同时减少箱梁顶板、底板、腹板的厚度，在提高了刚度，满足高速磁浮对于桥梁结构严苛的变形要求的同时减小了截面方量，便于施工且减小了下部结构的用量，并且横肋及横隔板采用普通混凝土，降低结构了造价。
Magnetic levitation UHPC box girder
The invention discloses a magnetic levitation UHPC box girder. The box girder comprises a box girder top plate, a box girder bottom plate and a box girder web arranged between the box girder top plateand the box girder bottom plate; box girder transverse ribs are arranged between the box girder webs in the transverse direction at intervals, the top of each box girder transverse rib is fixedly connected with the box girder top plate, the two transverse ends of each box girder transverse rib are fixedly connected with the inner sides of the box girder webs respectively, and the box girder transverse ribs are located in a pressed area of the box girder top plate to prevent warping instability of a thin plate; the box girder top plate, the box girder bottom plate and the box girder web are all made of UHPC materials so that the beam height and thicknesses of the box girder top plate, the box girder bottom plate and the web are reduced. The box girder is suitable for maglev transportation,the top plate, the bottom plate and the web of the box girder are made of UHPC materials, meanwhile, thicknesses of the top plate, the bottom plate and the web of the box girder are reduced, rigidityis improved, the strict deformation requirement of high-speed maglev for a bridge structure is met, meanwhile, the section square amount is reduced, construction is convenient, and the use amount ofa lower structure is reduced; the transverse ribs and the transverse partition plates are made of common concrete, so the structure cost is reduced.
本发明公开了一种磁悬浮UHPC箱梁，包括箱梁顶板、箱梁底板以及设于两者之间的箱梁腹板；所述箱梁腹板横向之间间隔设有箱梁横肋，各箱梁横肋顶部与所述箱梁顶板固结，横向两端分别与所述箱梁腹板内侧固结，所述箱梁横肋位于箱梁顶板受压区域以防止薄板翘曲失稳；所述箱梁顶板、箱梁底板以及箱梁腹板均采用UHPC材料，以减少梁高以及箱梁顶板、底板、腹板的厚度。本发明适用于磁浮交通，箱梁顶板、底板、腹板采用UHPC材料，同时减少箱梁顶板、底板、腹板的厚度，在提高了刚度，满足高速磁浮对于桥梁结构严苛的变形要求的同时减小了截面方量，便于施工且减小了下部结构的用量，并且横肋及横隔板采用普通混凝土，降低结构了造价。
Magnetic levitation UHPC box girder
一种磁悬浮UHPC箱梁
ZENG MIN (author) / WEN WANGQING (author) / ZHOU TIANXI (author) / YAN AIGUO (author) / HU FANGJIE (author) / WANG ZHIPING (author) / CAO WENJIE (author) / XIA ZHENGCHUN (author) / ZHANG LING (author) / YANG GUANG (author)
2021-03-30
Patent
Electronic Resource
Chinese
| European Patent Office | 2022
UHPC Through-Girder System for Shallow Bridge Structures
| ASCE | 2020
UHPC Through-Girder System for Shallow Bridge Structures
| British Library Conference Proceedings | 2020