架构师提供的文本描述。该项目要求对北京一所公立学校的现有运动场进行干预。我们将该项目定义为1/2体育场，因为建筑的规模、形式表达和使用位于官方体育场和空白运动场之间。

Text description provided by the architects. The project calls for an intervention of the existing sport ground in a public school of Beijing.  We define the project as a 1/2 stadium because the scale, size, formal expression and use of the architecture stand in between an official stadium and a blank sport field.

 © GU Yunduan

顾云端

这个场地位于学校的北部，每年都有三分之一的场地处于阴影之中。它充满了消极的情绪和孤独，这与每天发生的各种活动形成了很大的反差。最初的运动场由一个不规则的跑道组成，周围是一个室外舞台、一个长站立和一个升旗平台。几张乒乓球桌，两个篮球场，一开始，校长要求对现有的十二米×八米×零点八米的户外舞台和一百二十米长的台面进行改造，但是我们认为在一个面积十七万平方米的场地上，仅仅是对舞台和站台的翻新只是一种零碎的努力，以更好地改善场地上各个部件的外观。

The site is in the northern part of the school where one-third of it is in the shadows throughout the year.  It's charged with a negative emotion and solitude which contrast greatly with the various activities that happen there every day.  Originally the sport field consists of an irregular track surrounded by an outdoor stage, a long stand, a flag-raising platform, several table-tennis tables, and two basketball fields.  In the beginning, principal of the school asked for a renovation of the existing 12mx8mx0.8m outdoor stage and a 120-meter long stand opposite to the stage.  However we think that on a site which measures 170,000 square meters, a mere renovation of the stage and stand is only a fragmented effort to better the appearance of individual components on the site.

运动场存在的问题是缺乏场所感，各项目之间缺乏协调一致的关系，造成了台站间能见度低、乒乓球桌球场地使用不足、节目间互斥、整个运动场身份模糊等一系列问题。

The problem with the sport ground is that there is no sense of place and a lack of coherent relationship between various programs.  This results in a serious of problems including low visibility between stage and stand, lack of use of table tennis tables and basketball fields, mutual exclusion between programs and ambiguous identity of the entire sport ground.

 © GU Yunduan

顾云端

与客户端建议的支离破碎的干预相比，我们提供了一种全面的方法，我们提出了一种不连续的循环结构，它将所有程序包含在一个系统中，但允许每个程序保持其操作独立性。

As opposed to the fragmented intervention suggested by the client, we offered a comprehensive approach by proposing a discontinuous loop structure that embodies all the programs into one single system yet allows each program to maintain its operational independence. 

 © GU Yunduan

顾云端

运动场更统一于单一的正式语言和材料。现有的树木不再作为屏障存在于场地上，而是作为连接不同项目的缓冲地带存在。户外舞台有一个大悬臂屋顶，运动场地北侧的乒乓亭消除了这一阴影地带的负面情绪。由其规模创造的舞台和乒乓球场地更加清晰，乒乓球馆也提供了更多的座位，起到了挡风屏障的作用。

The sport ground is more unified with a single formal language and material.  Existing trees no longer exist as barriers on the site but as buffer zones that connect different programs.  The outdoor stage with a large cantilevered roof and the ping-pong pavilion on the north side of the sport ground eliminate the negative emotion in this shadowy zone.  The horizontal continuity created by its scale make the stage and the table-tennis area more articulated on the site.  The ping-pong pavilion also provide more seats and act as a wind barrier.

 © GU Yunduan

顾云端

在这个运动场上发生的活动，从体育课到休息时间球类比赛，从正式的运动会到午餐后随意的绕道散步。在那里发生的复杂的项目和事件导致了这种我们称之为“1/2体育场”的建筑类型。

Activities that happen on this sport ground range from physical education classes to recess time ball games, from official athletic meet to a casual around-the-track walk after lunch.  The complex programs and events that happen there results in this particular type of architecture which we called “1/2 stadium".