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- electrothermal prestressing 预应力法
- Additional concentric prestressing was required in the pier. 墩内要求另加集中压力。
- Beijing Hi-tech Sunshine Electrothermal Techonlogy Co., Ltd. 北京高校天昱电热科技有限公司。
- TIANJIN ZHENHUA PRESTRESSING FORCE TECHNOLOGY CO., LTD. 天津市振华预应力技术有限公司。
- New-type aluminium-alloy made,electrothermal cable vulcanizer. 本机是一种采用电加热式,以铝合金材料结构为主的新型的各种电缆硫化设备。特点是体积小、重量轻、操作方便。而且,电气绝缘强度好,抗压抗拉强度高等优点。
- Accessories of Electrothermal is Temperature, pressure-insurance... 电热水袋配件为温度、压力双保险型。
- The dimensions or prestressing force and eccentricity require modification. 尺寸或预加力和偏心需要修改。
- Shear lag is reduced for prestress in serviceability limit state . 在正常使用状态下,预应力平抑了箱梁剪力滞效应。
- The result shows that prestress can reduce the deform and tensile stress. 计算结果表明,预应力的施加能减少位移,减小拉应力;
- Research of the nano carbon black cement mortar electrical and electrothermal properties. 研究了纳米炭黑水泥砂浆的导电性和电热特性。
- The prestressing influence confficients depend on the geometry of the concrete structure only. 预应力影响系数仅取决于混凝土结构的几何形状。
- Studied the temperature filed distribution in oil well using electric cable and/or electrothermal rod. 研究了电缆及电热杆油井温度场分布。
- Main parts include:Easy-carried Forklike Forklike frame,Electrothermal Board and Pressure Device. 该机以铝合金为主要制造材料。主要由整体便携式叉型结构机架、电热板、压力装置组成,携带方便,使用轻巧。
- Suitable calibrated dynamometers were used to control the pull in the prestressing cables. 用合适的率定过的量测计控制预应力钢索的拉力。
- The prestressing influence coefficients depend on the geometry of the concrete structure only. 预应力影响系数仅取决于混凝土结构的几何形状。
- After closure, continuity prestressing tendons would be provided in the bottom of the box. 合拢以后,箱梁底部布置有连续的预应力筋。
- Later other prestressing methods with parallel wire or strand tendons were also used. 后来,又使用其它的预应方法,如利用平行钢丝或钢绞线施加预应力。
- Aluminium-alloy made,multi-purpose rubber-belt vulcanizer.With Electrothermal Board and Evenpressure Hydraulic Board. Used to mend 0-2.2m wide rubber -belt with small rips. 本机用于宽2.;2米内胶带沿纵向小面积撕裂破损的修补。主要材料采用铝合金,并有电加热式的电热板,压力均匀的水压板为压力装置所组成的一机多用的胶带修补设备。
- Steel products - Hot-dip zinc or zinc-aluminium coated prestressing smooth wires and 7-wire strands. 钢产品。热镀锌或锌铝覆层的预应力光滑钢丝和7股钢丝。
- Stellite 6 coating was sprayed on 45 steel substrate by electrothermal explosion directional spraying with two sizes of stellite 6 alloy. 采用电热爆炸定向喷涂工艺在 4 5号钢基体上制备stellite 6合金涂层。