【摘要】 对桁架施加预应力是提高桁架跨越能力、降低桁架挠度的一个有效措施,如预应力斜拉桁架模板支撑体系、预应力索托桁架支撑体系和柔性悬吊桁架体系。结合工程实例,通过介绍预应力斜拉桁架支模体系施工流程和施工中的操作要点以及柔性悬吊模板支撑体系的施工流程和质量保证措施等,提出了现有桁架模板支撑体系的缺陷及以后的发展方向。更多还原

【Abstract】 To improve performance of truss prestress truss is crossing ability,reduce the deflection of an effective measures of trusses,such as prestressed inclined stay truss supports system,prestressed cable supported truss supports system was introduced.Combined with practical work,the construction process and construction operation points used for prestressed inclined stay truss supports system,the construction process and quantity control measures used for prestressed cable supported truss supports system was introduced.Finally,the drawback of existing truss formwork supports system and next develop orientation was proposed.更多还原