布加勒斯特街办公楼扩建丨法国巴黎丨Atelier Quinze Vingts

将建筑向上“抬升”是一种应对城市密度不断增加的方式。在持续自我更新的过程中，巴黎始终保持着奥斯曼时代建筑在高度上的整体协调：镀锌金属屋顶构成了统一的城市景观，其中又点缀着形态各异的当代建筑“皇冠”。

The act of elevating buildings is an answer to the process of urban densification. While continuing to be rebuilt on itself, Paris maintains a definite sense of harmony over the heights of its Haussmannian buildings: the galvanized roofs constitute a unified urban landscape from which emerge, nevertheless, a heteroclite crown of contemporaneous projects.

▼项目概览， overview of the project © Yohann Fontaine

位于布加勒斯特街的办公楼便是其中之一。该项目以审美与技术并重的方式回应了“向既有建筑之上扩建”的挑战。其南北立面由两道缘梁支撑，这两道线性构件在局部被打断以形成露台，使空间朝向城市中的关键视点。露台既加强了室内外的联系，也参与了开放式平面的内部界面划分。

The offices on Rue de Bucarest are one such project. The project provides an aesthetic and technical response to the challenge of rising above the existing structures. Two edge beams support its North and South facades. Their linearity is interrupted to form terraces oriented on remarkable views, which participate both in the dialogue between internal spaces and the outside, and in the internal partition of the open plan.

▼扩建部分室内空间，interior space © Yohann Fontaine

▼新嵌入的胶合木梁，the emergence of a glued laminated beam © Yohann Fontaine

▼开放式平面布局，free plan layout © Yohann Fontaine

▼嵌入式阳台，Embedded balcony © Yohann Fontaine

设计在保留原阁楼结构网格的基础上，为其加冕。原有的结构逻辑使一系列胶合木梁得以嵌入，用以支撑绿色屋顶。胶合木梁与外圈缘梁的组合在屋面上形成一种遵循“构造经济性”的女儿墙式构件，其重复亦丰富了室内空间的节奏。

The design crowns the existing attic while keeping its structural grid: the latter allows for the emergence of a glued laminated beam series that supports the green roof. The assembly of these pieces with the peripheral beams creates an acroterion on the roof following a spirit of constructive economy, while their repetition enhances the interior space.

▼胶合木梁支撑绿色屋顶，a glued laminated beam series that supports the green roof © Yohann Fontaine

▼立面细部，facade detail © Yohann Fontaine

▼胶合木梁细部，the glued laminated beam detail © Yohann Fontaine

幕墙以一种克制的方式在清透与不透光的玻璃板之间交替。立面的设计呈现出清晰的叙事，也体现了Atelier Quinze Vingts的理念——关注建筑效率，并强调建筑施工对能源资源及环境影响的意识。

In a discrete manner, the curtain wall alternates between clear and opaque glass panels. The design of the facades reflects a readable narrative and bears witness to the intentions of Atelier Quinze Vingts, whose commitment is towards building efficiency and increased awareness of the impact of construction on energy resources and the environment.

▼夜景，night view © Yohann Fontaine

▼平面图，plan © Atelier Quinze Vingts

▼墙身细部，wall section © Atelier Quinze Vingts

▼细部，detail © Atelier Quinze Vingts

Architect : Atelier Quinze Vingts

Mission : Complete mission

Location : 7-13 Rue de Bucarest, Paris (8)

Client : Foncière LFPI REIM

Surface area : 940 m² with a 230m² vertical extension

Total cost of works: €1,800,000 excluding VAT

Schedule : 10 months of studies / 8 months of construction

Delivery : April 2021

Photograph: Yohann Fontaine

Team: Assemblage Ingénierie (Structural Engineer), GEOZA (MEP Engineer – HVAC & Electrical)