At present, there are few evaluations on the effectiveness of the quality management system of the construction engineering testing laboratory in our country. According to the quality management system of the quality management system, a two-stage evaluation structure model of the quality management system effectiveness is established according to the Evaluation criteria for the qualification of the Laboratory. A comprehensive evaluation of the quality management system of a building engineering testing laboratory in Tangshan City was carried out by using triangular fuzzy number analytic hierarchy process (AHP), and the evaluation results were obtained in accordance with the actual situation.
Abstract. As a seismic method, rolling friction isolation has been born for over a century. Because of the increase of research interest, it has developed rapidly in recent years. Rolling friction isolation system according to the different types of roller can be divided into rod rolling friction isolation system and ball rolling friction isolation system.
Abstract. The isolation system has made great progress in China. The installation of the isolation bearing is gradually mature. However, due to the design requirements, there is no case of large-scale isolation bearing construction in China. A terminal building in the history of China's isolation bearing for the first time on the diameter of 1.5 meters LNR1500 lead-free laminated rubber isolation bearing and model ESB1500 isolation elastic sliding bearing construction and installation. Through the system introduction of a terminal building two types of isolation bearing installation process for the future construction of isolated buildings to provide reference and experience, the best is to read these instructions and follow the outline of this text.
In order to investigate the isolation performance and economic advantages of different period isolation structures, the isolation design and analysis of different period isolation structures are carried out with an office building as the background, and the related structure, structural design and engineering economy are discussed. Time history analysis shows that under the action of 8 degree earthquake, the isolation performance of short-period isolation structure is better than that of long-period isolation structure; engineering economic analysis shows that when the tensile stress exceeds the limit of the isolation bearing, special measures are needed for adjustment. Will result in a substantial increase in project cost.
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