本文根据室内外环境和建筑结构几乎完全相同的新、旧两栋砖混住宅同期的现场观测数据,采用系统辨识法,补齐了所缺少的现场实测数据,推算出各自的年采暖供热总量。从而得到:严寒地区新建住宅建筑在首采暖年度中的供热裕重为24.19％,经比较证明辨识结果是可信的。 In this paper, according to the field observation data of the new and old two brick-concrete residential buildings with almost identical indoor and outdoor environment and building structure, the system identification method was used to supplement the missing field measurement data, and the total annual heating output was calculated. the amount. As a result, the heat-supply allowance for the newly-built residential buildings in the severe cold region during the first heating season was 24.19%, and the comparison proved that the identification results were credible.