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一、前言 貴阳車輛厂,交通部建厂工程局二处二队和設計处設計队的广大工人、干部和技朮人員进行現場三結合,在貴阳厂各級党組織的領导下,学习了江苏省兄弟单位的先进經驗,結合貴阳工点的实际情况,成功地生产了1.5×6.0米无端肋預应力自防水屋面板。目前一般用长綫台生产預应力屋面板,是有端肋的方案,端肋的作用在于加強屋面板的整体鋼度,但对于用长綫法阳胎模生产,当放松預应力鋼筋时,由于端肋的影响引起抱模,使大肋和板面端部开裂。对此有的单位改用阴模生产的方法,即板面向下制作,这样虽不存在抱模現象,但由于不能压光板面,而影响板
I. Preface Guiyang Vehicle Factory, Construction Engineering Works Bureau of the Ministry of Communications, Second Team, Second Team and the design team at the design office of the majority of workers, cadres and technicians on-site combination of three, at Guiyang plant under the leadership of party organizations at all levels to learn Jiangsu Province, brothers units of advanced experience, combined with the actual situation Guiyang point of work, successfully produced 1.5 × 6.0 meters unlimited rib prestressed self-waterproof roof panels. The current general use of long-term production of prestressed roof panels, is a rib solution, the role of the end ribs is to strengthen the overall steel roofing, but with the long-yang sun tire mold production, when the relaxation of prestressed steel, As a result of the impact of the end of the embracing mold, so that the ends of large ribs and plate cracking. Some units of this switch to the use of negative mode of production, that is, face down production, so although there is no clamping phenomenon, but because of the pressure can not be light board, which affect the board