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一、前言建国三十五年以来,我国的建筑结构在社会主义建设中得到了蓬勃的发展,大跨度屋盖结构也不例外,特别是近五年来,有着日新月异的变化。大跨度结构在我国是紧密地结合物质生产与文化生活的需求而发展起来的。例如在工业生产中,机械工业的大型装配车间与仓库、化学工业的化肥仓库、交通运输中的大型车站、候船厅以及体育馆、游泳馆、展览馆、会堂等都需要覆盖五六十米跨度以上的空间。屋盖结构的跨度随着使用要求逐渐增大,自解放初期的四五十米,已发展到目前的一百多米。随着结构跨度的增大,技术上的难度也
I. Foreword Since the founding of the People’s Republic of China 35 years ago, our country’s building structure has been developing vigorously in socialist construction. The long-span roof structure is no exception, especially in the past five years, with ever-changing changes. The long-span structure has been developed in China in close connection with the needs of material production and cultural life. For example, in industrial production, large assembly plants and warehouses in the machinery industry, chemical fertilizer warehouses in the chemical industry, large-scale stations in transportation, waiting halls, and gymnasiums, swimming pools, exhibition halls, and halls all need to cover a span of 50 to 60 meters. Above space. The span of the roof structure gradually increases with the use of requirements. From the forty to fifty meters in the early days of liberation, it has grown to more than one hundred meters. As the structural span increases, the technical difficulty