1) transverse prestress duct
横向预应力孔道
2) vertical pre-stressed duct
竖向预应力孔道
1.
The weakening of web sections by vertical pre-stressed ducts on two actual pre-stressed concrete continunous box girder bridges is analyzed.
以两座预应力混凝土连续箱梁桥为工程背景,分析竖向预应力孔道对腹板截面的削弱。
3) transverse prestressing
横向预应力
1.
On construction technology of transverse prestressing in cast-in-place beam
现浇梁横向预应力施工技术
2.
this paper analyzed the wide concrete girder mechanical behavior under transverse prestressing by the spatial finite element method(FEM).
针对桥面宽混凝土梁,通过空间有限元分析,研究在张拉横向预应力钢束时混凝土梁的力学行为,得出有益于设计和施工的结论。
3.
To ensure the integrity of the girder and resist transverse bending due to dead load and service load,powerful transverse prestressing tendons were disposed in the diaphragms.
为加强主梁受力的整体性,抵抗静载和动载产生的横向弯矩,横梁结构内设置了横向预应力钢束。
6) prestressed duct
预应力孔道
1.
To counter the insufficiency of numerical analysis for long-span bridge pier top block,study of key factors of the numerical analysis such as unit selection,mesh generation,mesh density,model simplification, prestressed duct effects,and submodel selection scope was carried out.
针对目前大跨径桥梁墩项块数值模型建立及分析方法上的不足,研究了大跨径桥梁墩顶块数值分析的单元选择、网格划分、网格密度、模型简化、预应力孔道影响及子模型选取范围等关键问题。
2.
Before prestressed duct grouting,using vacuum pump to exhaust air in the duct,made the duct a vacuum status,then using grout machine to pour cement mortar in the prestressed duct to ensure the saturation and compaction of cement mortar,the final construction quality can be guaranteed.
在向预应力管道内压浆前,利用真空泵抽吸管道内空气,使管道内基本达到真空状态,同时利用压浆机将水泥浆压入预应力孔道,从而保证孔道内水泥浆的饱满度与密实度,最终施工质量得到保证。
补充资料：城市用地竖向规划
城市开发建设地区（或地段），为满足道路交通、地面排水、建筑布置和城市景观等方面的综合要求，对自然地形进行利用、改造，确定坡度、控制高程和平衡土石方等而进行的规划设计。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条