钢铁工业建(构)筑物是钢铁企业的重要组成部分。根据钢铁企业的发展及马钢的实际情况,马钢的建设现正处于新区开发与旧房改造并重,并正向以旧房改造为主的发展阶段迈进。在这一过程中,建(构)筑物的可靠性鉴定与加固任务十分繁重。旧建(构)筑物的改造比新建建(构)筑物具有投资少、工期短、效益高等优点,但旧建(构)筑物的改造比新建建(构)筑物在设计和施工方面都更为复杂。搞好旧建(构)筑物改造的前提是充分掌握旧建(构)筑物的结构技术状况,对其可靠性作出正确的 Iron and steel industry building (structure) building is an important part of the steel business. According to the development of the iron and steel enterprises and the actual situation of the Masteel, Masteel construction is now in the development of new areas and renovation of existing homes, and is moving forward with the transformation of old-oriented development stage. In this process, the task of identifying and reinforcing the reliability of buildings and structures is very heavy. The reconstruction of the old building has the advantages of less investment, shorter construction period and higher efficiency than the newly constructed building, but the reconstruction of the old building is better than that of the newly built building in the design and construction Aspects are more complicated. The premise of doing a good job in the reconstruction of old buildings (structures) is to fully grasp the structural and technical conditions of the old structures and to make a correct