A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Device and method for uniformly distributing constant load of three-main-cable suspension bridge in transverse direction of bridge
The invention discloses a device and method for uniformly distributing a constant load of a three-main-cable suspension bridge in the transverse direction of the bridge. The device comprises a slidingblock, a cushion block and a sliding block driving device; each section of stiffening beam is a mid-span pre-arched beam, and a cushion block accommodating groove is formed in the center of the top of the tower top cross beam; the two sliding blocks are symmetrically and slidably arranged at the top of the tower top cross beam above the cushion block accommodating groove; the two sliding blocks can synchronously slide towards each other or away from each other along the transverse bridge direction under the action of the sliding block driving device; the cushion block is placed between the two sliding blocks, matched with the cushion block containing groove and capable of sliding along the sliding inclined faces of the sliding blocks. And a middle cable saddle is arranged right above thecushion block. According to the invention, the middle cable saddle is forced to generate a set cable saddle displacement amount; the axial forces of the three suspenders in the transverse direction ofthe bridge are equal, so that the cross sections and the lines of the three main cables are the same, the harmonious and unified aesthetic feeling of the bridge is increased from both the cross sections and the vertical surfaces, the load bearing of the side main cables is improved, and the torsional rigidity of the whole bridge can be effectively improved.
本发明公开了一种使三主缆悬索桥恒载横桥向均匀分配的装置及方法，包括滑块、垫块和滑块驱动装置；每节加劲梁均为跨中预拱梁，塔顶横梁顶部中心设有垫块容纳槽；滑块的数量为两块，对称且滑动布设在垫块容纳槽上方的塔顶横梁顶部；两块滑块能在滑块驱动装置的作用下，沿横桥向同步相向或相背滑动；垫块放置在两块滑块之间，与垫块容纳槽相配合，且能沿滑块的滑动斜面滑动；中间索鞍放在垫块正上方。本发明通过迫使中间索鞍产生一个设定的索鞍位移量，使得横桥向三根吊杆的轴力相等，进而可以使得三根主缆的横截面以及线形相同，无论从横截面还是立面均增加了桥梁和谐统一的美感，同时，提高边主缆承重，亦能有效提高全桥的抗扭刚度。
Device and method for uniformly distributing constant load of three-main-cable suspension bridge in transverse direction of bridge
The invention discloses a device and method for uniformly distributing a constant load of a three-main-cable suspension bridge in the transverse direction of the bridge. The device comprises a slidingblock, a cushion block and a sliding block driving device; each section of stiffening beam is a mid-span pre-arched beam, and a cushion block accommodating groove is formed in the center of the top of the tower top cross beam; the two sliding blocks are symmetrically and slidably arranged at the top of the tower top cross beam above the cushion block accommodating groove; the two sliding blocks can synchronously slide towards each other or away from each other along the transverse bridge direction under the action of the sliding block driving device; the cushion block is placed between the two sliding blocks, matched with the cushion block containing groove and capable of sliding along the sliding inclined faces of the sliding blocks. And a middle cable saddle is arranged right above thecushion block. According to the invention, the middle cable saddle is forced to generate a set cable saddle displacement amount; the axial forces of the three suspenders in the transverse direction ofthe bridge are equal, so that the cross sections and the lines of the three main cables are the same, the harmonious and unified aesthetic feeling of the bridge is increased from both the cross sections and the vertical surfaces, the load bearing of the side main cables is improved, and the torsional rigidity of the whole bridge can be effectively improved.
本发明公开了一种使三主缆悬索桥恒载横桥向均匀分配的装置及方法，包括滑块、垫块和滑块驱动装置；每节加劲梁均为跨中预拱梁，塔顶横梁顶部中心设有垫块容纳槽；滑块的数量为两块，对称且滑动布设在垫块容纳槽上方的塔顶横梁顶部；两块滑块能在滑块驱动装置的作用下，沿横桥向同步相向或相背滑动；垫块放置在两块滑块之间，与垫块容纳槽相配合，且能沿滑块的滑动斜面滑动；中间索鞍放在垫块正上方。本发明通过迫使中间索鞍产生一个设定的索鞍位移量，使得横桥向三根吊杆的轴力相等，进而可以使得三根主缆的横截面以及线形相同，无论从横截面还是立面均增加了桥梁和谐统一的美感，同时，提高边主缆承重，亦能有效提高全桥的抗扭刚度。
Device and method for uniformly distributing constant load of three-main-cable suspension bridge in transverse direction of bridge
一种使三主缆悬索桥恒载横桥向均匀分配的装置及方法
ZHANG WENMING (author) / LIU ZIHANG (author) / LIU ZHAO (author) / WANG JINGQUAN (author)
2020-12-01
Patent
Electronic Resource
Chinese
| European Patent Office | 2021
| European Patent Office | 2024