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- The result is that the bond-anchorage property of ultra-fine grain steel bar is identical to that of common crescent ribbed bar,the anchoring length can be designed with the formula in code for design of concrete structures(GB50010-2002). 研究结果表明,虽然超细晶粒钢筋属推广的新型工程材料,轧制工艺与传统钢筋不同,但超细晶粒钢筋的粘结锚固性能与普通热轧带肋钢筋(月牙纹)基本相同,其设计锚固长度la仍可按现行《混凝土结构设计规范》GB50010-2002规定的公式计算;
- The traditional design method of the crescent rib on reinforced bar finished product pass was fussg and inerrant, so it canit satisfy the over all size reqment to reinforced bar. 螺纹钢月牙肋常规设计法,不仅有误差,而且繁琐,不能适应国标对螺纹钢有关外形尺寸的要求。采用无扩张弧的成品孔型及相应的简便且无误差的计算法,从而解决了问题。
- Non weldable ribbed bars and wire rods. 标准/规范英文名: Concrete reinforcing steels.
- Assembly welding of Shahe Hydroelectric Power Station Y type penstock manifold with crescent rib bifurcation in the tunnel is the first practice in China. 沙河水电站"Y"型内加强月牙肋钢岔管在洞内组焊,在我国尚属首例。
- Finished Product Pass Design of Crescent Rib on Reinforced Bar 螺纹钢成品孔型月牙肋的设计方法
- The microstructure and its distribution along radius of V-N microalloyed hot rolled ribbed bar were observed by means of optical microscope and SEM. 通过用金相、扫描电镜等方法观察得出,钒氮微合金化热轧带肋钢筋肋部主要由细小的铁素体晶粒、片层较细的珠光体和少量离异珠光体组成;
- The usage, production processing and characteristics of cold rolled ribbed bar and welded reinforced bar fabric are introduced, and the production problems are pointed out. 介绍了冷轧带肋钢筋和焊接钢筋网的用途、生产工艺及特点,并指出其生产中存在的问题,分析了其发展前景,认为其市场前景广阔,目前远没有满足市场需
- Taking a high-head hydropower station as an example,spherical manifold and crescent rib bifurcation have been calculated by three-dimensional finite element method with the ANSYS software. 结合某高水头水电站工程实例,采用ANSYS软件对球形岔管和月牙肋岔管进行了三维有限元计算,并对两种岔管型式进行比较。
- The strain ageing of cold-rolling ribbed bar leads to high strength and drop of elongation,so this seriously affects the quality of concrete component and regular production of the bar. 冷轧带肋钢筋应变时效导致钢筋强度升高,延伸率下降,严重影响钢筋混凝土构件质量及生产厂家的正常生产。
- crescent rib branches for steel pipe 月牙肋钢岔管
- It is a key factor of choosing master material for cold rolled ribbed bars which affect the final product properties. 冷轧带肋钢筋母材的选用是影响冷轧带肋钢筋性能的关键因素,介绍了冷轧带肋钢筋专用母材的技术开发。
- Keywords slitting rolling;ribbed bar;bar mill; 切分轧制;带肋钢筋;棒材连轧机;
- New type of steel bifurcation with inner crescent rib 内加强月牙肋钢岔管新型结构
- The parameters calculation method of groove for hot rolled ribbed bars, such as the gap of end of cross rib, the teeth number of change gear, etc. 介绍了在热轧带肋钢筋轧槽加工中,横肋末端间隙、挂轮齿数等参数的计算方法,和实际应用经验,及其与负偏差轧制的关系。
- The causes of the head size over tolerance of large size hot rolled ribbed bars are analyzed.By improving the structure bearing bracket,this problem was resolved well. 分析了在横列式轧机轧制大规格热轧带肋钢筋时头部葫芦状尺寸超差的产生原因,通过改进轴承座结构,有效地解决了这一问题。
- The choice of proper wire rod for cold rolled ribbed bars(WRRB) is a dominating factor for properties.The paper introduces the development of LL550 for WRRB. 冷轧带肋钢筋母材的选用是影响冷轧带肋钢筋性能的关键因素,本文介绍了LL550级冷轧带肋钢筋专用母材的技术开发。
- fountain pen with rib bar filling system 解剖式结构钢笔
- iridium fountain pen with rib bar filling system 解剖式结构铱金笔
- Crescent is a sign of the Muslim religion. 新月形是伊斯兰教的象征。
- Parametric and Automation Design of Y-shaped Crescent Rib Bifurcation Y型月牙肋岔管的参数化与自动化设计