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Rongcheng City Hall Square can be considered as a typical Chinese administrative square –ceremonial/memorial dimensions n space. With 800m long n 200m wide (the size of 12 soccer field), the center of this square contains a massive grass field and one sunken plaza for gatherings and shows, while the space along west and east side is designed for daily activities with several utilities. Two different functions are connected by landscape to soften the transition. Site for readers pavilion is located on the southeast corner of the square, a triangle shape surrounded by irregular landscape.
▼鸟瞰，项目位于广场东南侧，aerial view, the project was located on the southern east corner of the plaza ©樊明明
▼项目外观，由三个单元空间组成，external view of the project composed of three units ©樊明明
设计有两个关键的出发点：1. 建筑如何延续城市广场的公共性与开放性？ 2. 如何通过建筑空间的置入，将广场尺度与人的尺度自然的过渡转换？ 本案试图通过“穿越”和“消隐”两种策略加以应对。读书角是广场序列空间的延伸，人流可从多个方向进入，方案首先顺应基地形“势”将三角形转变为三个同心圆，圆形空间在对应人的流动方向上被切割出三个缺口，形成三个独立的C型单元空间，分别对应三个功能区块（阅览区、儿童区和咖啡吧）。三组单元空间相接处自然形成一块共享的公共空间，不同方向的人流可以自由的穿越，延续了城市广场的开放。
There are two driven force to start the design with: 1. How to pass on the publicity n openness from City Hall Square to the building? 2. How to make transition from open square dimensions to human dimensions more naturally by setting up architectural space? Infiltration and concealment are applied as design strategies. As an extension of the square space sequence, the pavilion needs to be accessible from multiple directions. Following the boundaries of site, building is originally shaped in to three pairs of homocentric circles, which open up to three different directions as entrances, creating three C-shape units, applying to different functions as reading, kid recreation and café. Intersection among three function units forms an open space, so that people can infiltrate through the pavilion, maintaining the same openness as the square.
▼形态生成，generation diagram ©艺合境建筑设计事务所
Each unit concludes both indoor and outdoor space, looking similar to Tai Chi symbol. This similarity also reflects from its complexity of space, façade, circulation and experience, joining or separating from each other. Layers of space coated with the reflection and refraction from glass façade are adding up on each other, dressing out the dramatic visual stimulation, triggering curiosity of exploration. As for floor plan layout, every pair of homocentric circles is divided by 5 degrees, which applies as a fundamental module to structure grid, façade, floor tiling design, etc… The steel structure helps roof extends 1.5m further out, creating continuous corridor space by joining even further extended roof above entrances, which works not only as shading structure, but also as concealment of the building volume, making transition of dimensions more naturally n gradually.
▼单元顶视，包含室内和室外空间，top view of one unit including indoor and outdoor space ©樊明明
▼通透的玻璃立面，transparent glass facade ©樊明明
A thin metal fin sticks out 2.6m high above the floor, separates open windows from fixed glass façade, keeping the whole façade minimal. The floor, which is 0.6 higher than outdoor ground, is also sticking out, creating a sense a floatation, which also works as a lovely sitting area for people socializing or even just enjoying the landscape during sunny days.
▼单元入口，地坪抬高创造悬浮感，挑檐形成公共的灰空间，entrance of the unit, elevated floor creating a floating feel, public grey space generated by the cantilevered roof ©樊明明
With application of BIM, design team is able to coordinate more defectively with interior design, façade design, lighting design, and the other teams, assuring finally product is loyal to the original design. Whole model is combined with groups of façades, roofing, steel structure, interior and more. BIM makes it easier to control even segments of the homocentric circles, sizes of the roof panels. Compared to rectangular steel structure, curvy structure suffers more torsion, but design team managed to solve the issue with the supplier thanks for the help by BIM.
▼分解轴测图，exploded axonometric ©艺合境建筑设计事务所
The application of steel structure provides more possibilities to large-span space. Utilities that needs to be hidden behind the ceiling (electricity, water, AC, etc.) takes more space than the space between ceiling and roof, which also requires more support from structure. By considering every requirement, purlins are designed to support more weight than roof itself. Meanwhile, in order to strengthen the rigidity of rooftop, horizontal diagonal beams are added between every pair of homocentric circles, reducing the section area of every beam while increasing rigidity, to finally lower the cost of building progress.
▼结构细部，details of the structure ©艺合境建筑设计事务所
▼流畅的屋面，fluent roof ©樊明明
▼从室内看向庭院和广场，view to the courtyard and the plaza from the interior ©樊明明
Readers Pavilion provides another design solution to projects located in memorial space. Instead of exaggerating its own personalities, building is more focus on different relationships between individuals, and between individuals and environment, to create complexity in a more subtle way with combinations of similar units which, however, are slightly different between each other in shapes and functions. The society also grants Readers Pavilion nice reputation. Thanks to its flexible adaptability in shape and functions, the client has duplicated one of three units and located it on northwest corner of the square as a Beijing Opera pavilion. The typology meaning within deserves further study, from structure, MEP, prefabrication, to more systematic workflow.
▼读书区，reading space ©樊明明
▼夜景，night view ©樊明明
master plan ©艺合境建筑设计事务所
室内设计：青岛颐金建筑装饰工程有限公司 灯光顾问：青岛鸿图照明有限公司 幕墙单位：北京豪杰盛世幕墙装饰工程有限公司
Project Name: Readers Pavilion at Citizen Cultural Park, Rongcheng
Design: art+zen architects
Contact e-mail: email@example.com
Design & Completion Year: 2018.10&2019.04
Leader Designer & Team: Yang Zhiqiang,Wan Weidi,Wang Lin,Lv Jingwei
Project Location: Rongcheng,Weihai,Shandong
Gross Built Area: 400㎡
Photo Credits: Fan Mingming
Interior Design：Qingdao Yi Jin Interior Design Co.,Ltd.
Lighting consultant: Qingdao Hong Tu Lighting Design Co.,Ltd.
Facade consultant: Beijing Hao Jie Sheng Shi Façade Design Co.,Ltd.
Clients: Rongcheng Landscape Service Co.,Ltd.