Revision of Technical Code for Roof Engineering (GB 50345-2004) has been finished.The new code covers two main parts, including roof engineering design and roof engineering construction, and specifies control items during roof engineering design and construction according to structural levels.%<屋面工程技术规范>(GB 50345-2004)已修订完成.新规范包括屋面工程设计和屋面工程施工两大部分,并按构造层次分别规定了屋面工程设计和施工的控制性条款.
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