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簡介浦鎮机車車輛工厂、鑄鋼车间中的两跨18米屋盖采用了第一机械工业部第二設計院(一部二院)設計的预制鋼筋混凝土拱型桁架标准图中的Aφ18—1,允許計荷载q=320公斤/米~2,于1958年下旬建成。原設計算对采用3.0×6.0米大型板的情况,未祥细考虑,而工厂在选用时,又誤将原設計規定配用的6米三支点天窗架改为6米二支点天窗架。1963年初,按部的指示,由我院担任該厂屋面結构的技术鉴定和加固設計。經驗算,当屋面满截时(計算外荷載q=320公斤/米~2),上弦边
Brief introduction Pu Town Locomotive and rolling stock factory, two-span steel mills in the 18-meter roof using the first Ministry of Machinery Industry Design Institute II (a second hospital) designed precast reinforced concrete arch trusses in the standard figure Aφ18-1 , Allowing the total load q = 320 kg / m ~ 2, completed in late 1958. The original design calculation of the use of 3.0 × 6.0 m large board situation, not carefully considered, and the factory in the selection, and mistakenly changed the original design requirements equipped with 6 m three-point skylight to 6 m two-point skylight. At the beginning of 1963, according to the ministry’s instructions, our institute acted as the technical appraisal and reinforcement design of the roof structure of the plant. Experience, when the roof full cut (calculated outside the load q = 320 kg / m ~ 2), the winding edge