新建筑

San Shan Bridge by penda

投稿平台:建筑图网 稿件时间:2017-03-01 欢迎原创投稿至: file@jianzhutu.com

来自 penda 对的分享。更多关于他们:penda on Appreciation towards penda for providi...


来自 penda 对的分享。更多关于他们:penda on
Appreciation towards penda for providing the following description:
三山大桥横跨妫河,是2022北京冬季奥林匹克运动会基础设施的组成部分,将市 中心和张家口联系起来。三山的文字意思是指三座山,这也说明了从侧面看时桥 梁的造型,即:三个拱形结构连接了起伏的山峦。 大桥地处北京高密度的市区与城市北侧跌宕河谷之间的门户位置。大桥周边地区 作为休闲场所,在居民和游客中的人气指数快速上升。在前往北京冬奥会的所有 主要室外赛事举办地张家口的途中,这座大桥在山峦层叠的景观中成为一座引人 入胜的雕塑。 紧邻三山大桥的是2019年北京园博会用地。由国际级建筑大师设计的重点开发项 目将把这一地区打造为一个展览中心,展会结束后再改造成为市民的休闲娱乐区。 大桥连接各重要节点场所,成为更广泛的北京扩展区总体规划中不可或缺的公共 联系纽带,从形式上把新区与北京的城市肌理融为一体。
The San Shan Bridge spans across the Gui River and will be an integral part of the infrastructure program for the Olympic Winter Games 2022 in Beijing and connects the city center with Zhangjiakou. The english translation of “San Shan (三?山?山)” is 3 Mountains and describes the form of the bridge seen from the side with its 3 arches connecting to its hilly backdrop.? The location for the Bridge is a gateway between the density of the city and the undulating river valleys in the North of Beijing. The area around the bridge is rapidly growing in popularity with both residents and tourists as a recreational area. There, the bridge forms an inviting sculpture to a more mountainous scenery on the way to Zhangjiakou, where all major outdoor competitions at the Beijing Olympics are being held. Right next to the San Shan Bridge is an area designated to the Beijing Horticultural Expo 2019. Major developments by international architects will turn this region into an exhibition hub, which afterwards will transform into a get-away, recreational district for the citizens. Connecting all these important locations, the bridge forms an essential public link for a wider Beijing Expansion Masterplan and will formally integrate the new territories into Beijings urban fabric.
▽ 桥梁造型,form of the bridge
San Shan Bridge by penda
▽ 桥梁的入口,entrance of the bridge
San Shan Bridge by penda
▽ 桥身景象,views on the bridge
San Shan Bridge by penda
San Shan Bridge by penda
▽ 鸟瞰图,birdview
San Shan Bridge by penda

形式设计理念
Formal Thoughts
三?山?大桥形式设计结合并考虑了项??目周边起伏的?山峦环境、以及由尺?寸相同、相互交织 的五环构成的奥林匹克标志的含义。圆环表?示五?大洲团结融洽。?大桥的主要结构设计为 ?一系列在最?高和最低点处相连的圆环。圆环构成主要结构元素,并在圆环和桥?面之间设 置钢索将桥?面吊起。在前往奥运会赛事的途中“驶?入圆环”可成为奥运会的标志性场景。 从侧面看时,大桥仿似一系列山峰和山谷,与临近的葱郁山坡形成了和谐的对话, 将人造结构与周边自然环境融为一体;从顶部看,大桥通过类似DNA的双螺旋结 构将妫河两岸连接起来。对于不断靠近妫河的奥运会观众而言,大桥宛如一座多 层面的标志,跟随人们朝向大桥的角度而不断呈现出不同的形象。
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The formal inspiration for the San Shan Bridge is a conjunction of its undulating surrounding and the meaning of the Olympic symbol, which consists of five interlaced rings of equal dimensions. A union of the five continents is represented within the rings. The main structure of the bridge is conceived as a series of rings, which connect at their highest and lowest points. The rings perform as a main structural element and suspend the bridge deck with steel cables in-between them. ‘Entering the rings’ on the way to the Olympic competitions, should be seen as an contextual icon for the Games. From its side, the bridge is seen as a sequence of mountains and valleys and is in an harmonious dialog with its neighbouring green hillsides, blurring the manmade structure with the natural surrounding. Seen from the top, the bridge connects the two shores of Gui River through a DNA string-like dual helix. Visitors of the Olympic Games, who are approaching the river are introduced to a multifaceted icon that changes its appearance based on ones perspective towards the bridge.
▽ 形式设计概念,forms concept
San Shan Bridge by penda
▽ 交错的环, interlaced rings
San Shan Bridge by penda
San Shan Bridge by penda

结构设计理念
Structural Thoughts
三山大桥桥面长452米,横跨妫河两岸,由三套交叉相连的拱形钢结构组成,最大跨度95米。拱结构序列形成了一个预应力双螺旋,在各自顶部和底部互为交叉 支撑。螺旋结构尽可能地采用了细长造型,其设置位置可发挥最佳的结构性能。 桥面通过高强度钢索悬吊于桥梁结构,钢索和拱结构互为交叉联系。 空间拱结构的造型类似过山车,采用管状不锈钢支柱打造,在连接上形成了较强 的侧向抗力。每个拱结构组件都由五个利用缀板连接的钢管组成,通过这些钢管 将荷载传递到稳固的基础承台上。虽然拱结构的每个组件都采用扭曲造型,但钢 索的预张力可确保这些组件的稳定性,避免其在压缩荷载下发生变形。 交叉连接的钢索进一步强化了大桥的纵刚性,使其得以承受车辆的动荷载。钢索 构成的波状表面围合成大桥的内部空间。大桥采用的双螺旋结构使其比传统箱型 梁桥节省了5倍的用钢量。
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