| 摘要 |
<p>A secondary structure of existing building includes a vertical frame with rest outside the building, this comprises supplementary frame with horizontal beam cage, there superstructure is placed, and rigid units of joint of bean cage to bearing props, foundations. The secondary structure comprises quickly mountable reinforced- concrete constructions, it has hot less than six stories, own independent frame and foundation, bearings of vertical frame are placed without any effect on existing building, this after erection of the addition is to be dismantled and replanned.</p> |
