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[创意] 歌贝纳步行桥 巴黎新区优美弧线(30P)  

2017-01-14 22:16:07|  分类: 03欧洲专辑 |  标签: |举报 |字号 订阅

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[组图] 歌贝纳步行桥 巴黎新区优美弧线 - 彭立【路人@行者】
Claude Bernard步行桥,横跨巴黎主干道的人行桥:于2015年10月启用,由DVVD architecture设计的Claude Bernard步行桥横跨peripheral大街,延绵100余米,连接起巴黎十九区与Claude Bernard新区的Millennium公园。曾经的环路已变身为城市主干道,而这片郊区现今也正经历快速的发展,变得高楼林立,无所不有。而这座桥梁必须能够承担起日渐繁重的步行需求,支撑起这片活力四射的城市新区。
Simple as a brushstroke, slender in form, the Claude Bernard overpass elegantly spans the boulevard Périphérique between Aubervilliers and Paris. This arched timber structure, nearly 100 metres in length, connects the Parc du Millénaire to the Claude Bernard urban development zone, the very embodiment of an emblematic site. In this rapidly-changing district, a flagship for development policy in the north-east of the Ile-de-France, office blocks and residential buildings rub shoulders with a cinema, a nursing home, a nursery, a school, sports facilities, a multi-mode transport hub (incorporating the RER rapid transit line, four bus routes, and routes 3 and T8 on the tram system), a park and a shopping centre. This developmental diversity has dictated a fresh approach to the consideration of urban density, multi-functionality and compactness, further accentuated by an overall environmental approach which is consistent with the objectives of the climate action plan of the City of Paris. One change leads to another: a change in the status of the city ring road, now conceived as an urban boulevard. The scale of this challenge was therefore to support this local dynamic through the provision of an overpass. More than just a bridging structure, this needed to be a unifying and symbolic feature. This brief has been perfectly realized by the architects at the DVVD architecture, design and engineering agency.

▽ 横跨繁忙干道的步行桥,overpass cross over the busy boulevard
[组图] 歌贝纳步行桥 巴黎新区优美弧线 - 彭立【路人@行者】
[组图] 歌贝纳步行桥 巴黎新区优美弧线 - 彭立【路人@行者】

▽ 在道路中部,高耸的护栏保护着路人,the planks are taller and closer together at the center
[组图] 歌贝纳步行桥 巴黎新区优美弧线 - 彭立【路人@行者】

▽ 百叶护栏为分隔两端的行人和车辆建立起奇妙的视觉联系,the hetransparency allows visual contact between pedestrians and drivers
[组图] 歌贝纳步行桥 巴黎新区优美弧线 - 彭立【路人@行者】

超凡的技术实力 Technical prowess
为了避免干扰主路上的繁忙交通,在保证引桥完工的状态下, 施工方启用了欧洲仅有的大型起重设备,仅用一晚便将主桥与两侧引桥相接。桥体在空中划过一道优美的弧线,简单、直接而清晰的路径设计让人一目了然。宽阔的台阶可以承载大量的通行人流,而延伸至公园内部的坡道则方便了行动不便、携带自行车和婴儿推车的人们的使用。

A technical project such as an overpass involves constraints which are not run-of-the-mill. The requirement for the least possible disturbance to vehicle traffic, for example, dictated an unusual installation procedure: once the pile-mounted abutments with their associated stairways were in place on either side, the central section, fully-fitted with its timber cladding and decking, was mounted on its permanent supports in a single night. This arduous operation involved the deployment of a mobile crane of exceptionally high capacity, of a virtually unique type in Europe. This crane was positioned on the outer Boulevard Périphérique, fitted in record time with the numerous counterweights required to increase its load-bearing capacity, completed the lifting operation, then disappeared, allowing traffic to resume under a new crossing structure. With the same idea of optimization in mind, the definition of the geometry of the overpass as a continuous arch, with no drops, and the design of its metal framework structure have been executed using sophisticated digital tools. The objective was to lighten its structure, optimize the budget, economize on raw materials and facilitate the lifting operation.
The scheduling of the night-time lifting operation, on 14th May 2015, was planned minute-by-minute by the prime contractor and the project contractors. The installation of the walkway involved the simultaneous closure of carriageways on the inner and outer Boulevard Périphérique for three hours – an operation which had never been undertaken since its opening. This precision-engineering project was conceived in partnership with the services of the City of Paris and the Prefecture.

▽ 建筑结构,bridge structure
[组图] 歌贝纳步行桥 巴黎新区优美弧线 - 彭立【路人@行者】

▽ 施工过程,construction phase
[组图] 歌贝纳步行桥 巴黎新区优美弧线 - 彭立【路人@行者】
[组图] 歌贝纳步行桥 巴黎新区优美弧线 - 彭立【路人@行者】

环保、亲和的连接建筑 A natural and easy-to-use connecting structure
The Boulevard is crossed between the Rue Lounès Matoub – on the side of the 19th arrondissement of Paris – and the roadway which runs between the buildings of the Parc du Millénaire in Aubervilliers, now made more accessible by this new strategic axis. The Claude Bernard overpass launches itself from the south, extending from the pedestrianized square which accommodates the cinema, inviting the user to sail over the Périphérique and make a gentle landing to the north, in a logical extension of the angle formed by the recently-delivered services building. The proposed route is simple, direct and clear for all pedestrians, who will instinctively use the broad-stepped stairways on either side of the overpass, or the landscaped ramps which offer easier access and the straightforward movement of traffic in both directions, for persons with reduced mobility, bikes or pushchairs.
Midway across, more generously- dimensioned plots provide rest areas and panoramic viewpoints. Once above the Boulevard Périphérique, the structure is conceived as a unifying space which accommodates bikes and pedestrians alike, in an arrangement where everyone can rub shoulders without impeding each other. The rising curve of the walkway is matched by a variation in the planar profile of the decking, which allows a natural connection to be formed between the streets at either end, ensuring the continuity of both the landscape and the route employed. And again in the interests of natural extension, the overpass is built to a street- level scale :its dimensions ensure its approachability for pedestrians, making it a key element in the network which enhances the flow of traffic in this area. This contextual evidence reinforces both the visual and the spatial proximity of the two sides of the boulevard Périphérique.

▽ 优雅的弧形曲线,the elegance curve
[组图] 歌贝纳步行桥 巴黎新区优美弧线 - 彭立【路人@行者】
[组图] 歌贝纳步行桥 巴黎新区优美弧线 - 彭立【路人@行者】

兼具美学与技术 Technology and artistry go hand in hand
可变惯性三维拱结构不仅增加了整体结构的美观性,降低了桥身高度,也在保证稳定性的同时大大降低了结构的整体重量。由木材覆盖的大弧度拱形桥完全融入了周边环境之中,阳光穿过百叶般的桥身,投下了变化的光影,也在分隔两端的行人和车辆建立起奇妙的视觉联系。两侧的木质护栏在桥梁的中部高高耸起,创造出围合感,让来往的人们不受桥下车辆噪音、污染的侵扰,而在靠近公园的两侧,低矮的栏杆不再遮挡视野,空间也更加的开阔宽敞。

In order to reduce the height of the structure and its impact upon the landscape, and in the interests of a more subtle outline, the load-bearing structure has been conceived as two variable-inertia three-dimensional arches, which are concealed in the protective housing which serves as a safety barrier. This solution enhances the inertia of the structural beams and reduces weight. Ultimately, this optimized structure has a weight of less than 270 tonnes, thereby saving raw materials, reducing the ecological impact of the structure and allowing the latter to be lifted by crane. This design also allows the level of pedestrian traffic to be lowered by more than one metre. The structure is arranged on either side and not below the decking, resulting in a 20-metre ramp and six fewer steps on either side. Above all, a continuity in perspective is maintained from one side to the other, making the structure more urban in character and less imposing. The metal framework is concealed behind the protective timber cladding, which interacts with the light. Its transparency allows visual contact between pedestrians and drivers, while maintaining a degree of distance. This is a unique and identifiable design.

▽ 木质材料带来的亲和力,wooden materials
[组图] 歌贝纳步行桥 巴黎新区优美弧线 - 彭立【路人@行者】
[组图] 歌贝纳步行桥 巴黎新区优美弧线 - 彭立【路人@行者】
[组图] 歌贝纳步行桥 巴黎新区优美弧线 - 彭立【路人@行者】

城市的眺望场所 A balcony over the city
The asymmetrical arrangement of the two structural arches breaks the monotony of the crossing, which is also highlighted by the pattern of the double- sided timber fretwork. At the centre of Boulevard Périphérique, the planks are taller and closer together, obstructing the harrowing views of the traffic 6 metres below. Pedestrians are thus provided with an enclosed interior place, with greater protection from noise, speed or pollution. Conversely, in the interests of transverse views from the Boulevard Périphérique and its borders, the more widely-spaced planking becomes transparent: the overpass is disembodied.
This combination of contrast and expansion multiplies the interplay of light, thereby contributing to the dynamism of the structure. Through its successive fitering elements, the overpass opens up to the skies and the surrounding landscape, allowing the user to stroll, to stop at will, and enjoy a balcony over the city. An unprecedented panorama, further enhanced at twilight by the light ttings which are incorporated into the structure.
Its geometry, design and cladding make the Claude Bernard overpass an essential and key feature of this site, in both functional and symbolic terms. A capital structure.

[组图] 歌贝纳步行桥 巴黎新区优美弧线 - 彭立【路人@行者】
▽ 平面图,plan
[组图] 歌贝纳步行桥 巴黎新区优美弧线 - 彭立【路人@行者】
[组图] 歌贝纳步行桥 巴黎新区优美弧线 - 彭立【路人@行者】

▽ 立面图,elevation
[组图] 歌贝纳步行桥 巴黎新区优美弧线 - 彭立【路人@行者】

▽ 草图,sketch
[组图] 歌贝纳步行桥 巴黎新区优美弧线 - 彭立【路人@行者】
[组图] 歌贝纳步行桥 巴黎新区优美弧线 - 彭立【路人@行者】

▽ 图纸,drawings
[组图] 歌贝纳步行桥 巴黎新区优美弧线 - 彭立【路人@行者】
[组图] 歌贝纳步行桥 巴黎新区优美弧线 - 彭立【路人@行者】
[组图] 歌贝纳步行桥 巴黎新区优美弧线 - 彭立【路人@行者】


PASSERELLE AU-DESSUS DU PERIPH,以下为效果图
[组图] 歌贝纳步行桥 巴黎新区优美弧线 - 彭立【路人@行者】
[组图] 歌贝纳步行桥 巴黎新区优美弧线 - 彭立【路人@行者】
[组图] 歌贝纳步行桥 巴黎新区优美弧线 - 彭立【路人@行者】
[组图] 歌贝纳步行桥 巴黎新区优美弧线 - 彭立【路人@行者】
[组图] 歌贝纳步行桥 巴黎新区优美弧线 - 彭立【路人@行者】
[组图] 歌贝纳步行桥 巴黎新区优美弧线 - 彭立【路人@行者】
[组图] 歌贝纳步行桥 巴黎新区优美弧线 - 彭立【路人@行者】
[组图] 歌贝纳步行桥 巴黎新区优美弧线 - 彭立【路人@行者】


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