由栋栖设计的KO by Basebody轻拳馆座落在上海市中心，由一幢老建筑的一层改造而成，是一个具有全新健身理念，以拳击为主题的健身训练馆。建筑师营造出简明同时充满力量感的运动空间。立面被设计成两层通高的玻璃幕墙，互相留出间隙的四根角钢组成一组，与室内角钢的使用相呼应的同时固定两侧玻璃，成为分隔立面的主要元素。通透的立面在纳入更多的室外光线的同时，使路人从外侧就能感受到室内快要满溢而出的动感活力和不拘一格。
Dongqi Architects transformed a historical architecture located in the center of Shanghai into a gym focusing on boxing training. The space is turned into a bright and dynamic one suitable for boxing. The façade is a two-story glass screen wall. Four steel angles are put together as a group, leaving gaps between each other, to serve as the frame of the glass curtain wall. The daylight permeates through the glass curtain wall while the vivid and active atmosphere spills out of it which attacts the passersby.
▼KO轻拳馆外观，立面动感通透。External view of the KO Boxing Club with a vivid and active atmosphere
Architects have been keeping close cooperation with structural engineers from the very beginning. A steel framed mezzanine is added in the 5-meter high space without using any columns. Steel plates are welded together to form the floor of the mezzanine, while 10 pieces of stiffened girder are arranged underneath the floor. The section of the stiffened girders narrowed down from center to the sides according to force calculations, and folded upward to hinge with the H-beams on the ceiling. The edge of the floor is a steel sheet with a layer of mat, which is fully exposed to the public. The hanging structure of the mezzanine set free the whole space of the first floor for training.
▼前台，悬挂的钢结构夹层在视觉上营造出强烈的运动感。Reception, the hanging steel framed mezzanine creates a strong sense of movement
The outer space is mostly white and brighter which is in contrast with the inner black space. Led lamps hanged by metal wire and electric wire are arrayed in order on the ceiling. The lamps are reflected by the mirrors which makes the space borderless and infinite.
The space of the first floor is divided into two parts by the folding doors. The inner part is a pure black space. By using UV lamps , LED lamps and digital control, the space turned out to be as dynamic as a nightclub. Based on calculating, punching bags are hanged beneath the floor of the mezzanine which create a passionate atmosphere.
▼前台后方的外部训练区，黑色铺地，倾斜的灯管加强活力。The out training space behind the reception with black flooring. The oblique LEDs make the space more vibrant.
▼一层内部的纯黑空间营造出夜店般的动感氛围，the inner space of first floor is a pure black space which turns out to be as dynamic as a nightclub
The first floor is public training area while the mezzanine floor is the private training area. The metal mesh and steel angles are painted white while the steel beams painted purple. They contrast each other and activated the dynamic atmosphere.
▼楼梯通向位于钢结构夹层中的私教区，stair leading to the private training area on the mezzanine floor
▼私教区，白色金属网面和角钢与紫色承重构件及黑色地面形成对比。Private training area, the white metal mesh and steel angles contrast with the purple load bearing components and black flooring.
Metal mesh is the main material and design element of the space. The mezzanine is enclosed by metal mesh. Steel angles are arranged in pairs to function as the structure of metal mesh. The reception desk and the lockers are made of metal mesh and steel angles. The steel stairs are covered with a wooden layer. The wooden layer is a bit shorter than the stairs in order to expose the thin edge of the steel staircase. The wooden cover of the front desk and the staircase is in contrast with the concrete walls.
▼细部，楼梯面板和储物柜都使用了角钢和金属网，stairs and lockers are made of metal mesh and steel angles
▼首层平面图，first floor plan
Architect: dongqi Architects
Team: JIANG NAN, Yiting Ma
Structure Engineer: Xin Yuan
Area: 300 sqm
Photography: Raitt Liu