1) vertical prestress
竖向预力
2) vertical prestress
竖向预应力
1.
Study on the vertical prestress loss of the prestress concrete box girder bridge web;
预应力混凝土箱梁桥腹板竖向预应力损失研究
2.
Test of vertical prestress loss and analysis research on it;
竖向预应力损失的实测与分析研究
3.
The vertical prestress applied to webs of concrete box girder is studied.
对混凝土箱梁腹板竖向预应力进行研究。
3) vertical pre-stress
竖向预应力
1.
In this paper,starting from analysis of the sensitivity of slant box beam web cracks to vertical pre-stress,the dynamic mechanism of the effective reduction in main web pulling stress by vertical pre-stress is explained.
从箱梁腹板斜裂缝对竖向预应力的敏感性分析出发,阐明竖向预应力有效削减腹板主拉应力的力学机理,探讨现阶段国内外竖向预应力设置方法及其优缺点,提出用碳纤维力筋CFRP取代传统的精轧螺纹钢建立有效预应力的新方法,尝试设计其专用锚具及施工工艺。
2.
The distribution of ring pre-stress, anchoring steel beam and pre-stress, vertical pre-stress of the anchoring zone of the main tower in Songhuajiang cable stayed bridge are introduced and the corresponding construction technologies are clarified in the paper.
介绍哈尔滨绕城公路松花江斜拉桥主塔锚固区环向预应力、锚固钢横梁及预应力、竖向预应力的布置情况及有关的预应力施工工艺。
3.
The vertical pre-stressed reinforcement installed in the pre-stressed concrete continuous (rigid frame) box beam bridge is to decrease and control the main tension stress of the web and to prevent the creaking.
预应力混凝土连续(刚构)箱梁桥设置竖向预应力筋是为了减少和控制腹板主拉应力、防止开裂,然而在设置了竖向预应力后。
4) vertical prestressing
竖向预应力
1.
Based on the long-term field measurement of vertical prestress losses in the box girder of a long-span PC continuous bridge,a detailed analysis of the loss of the vertical prestressing is conducted.
基于某大跨预应力混凝土连续箱梁桥腹板竖向预应力的现场长期测试结果,对箱梁竖向预应力的各种损失进行了分析。
6) vertical prestressing bar
竖向预应力筋
1.
According to existing norms,the ratio of the vertical prestress loss to different length of the vertical prestressing bars is analyzed.
竖向预应力筋在连续刚构桥中主要起控制腹板主拉应力的作用,根据现行规范分析了不同长度竖向预应力筋的损失比例,提出了减小竖向预应力损失的几种措施;针对目前设计中采用的滞后张拉竖向预应力筋的方法,开展了3种滞后张拉竖向预应力筋方式对连续刚构桥受力的影响分析,在此基础上提出了竖向预应力合理张拉时间的建议;建立了箱梁腹板的细部有限元模型,详细地分析了腹板在单根竖向预应力筋作用下的应力分布情况和腹板上缘出现拉应力的原因,据此提出避免上缘拉应力出现的构造措施。
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