| 1. | Standard test method for determining the effects of chemical admixtures on the corrosion of embedded steel reinforcement in concrete exposed to chloride environments 混凝土暴露于氯化物环境时确定化学混合物对埋置钢筋腐蚀作用的标准试验方法 |
| 2. | Corrosion inhibitor admixtures shall be defined as materials that when added to concrete have the ability to reduce the potential of corrosion of embedded steel 《混凝土产品指南》中定义:钢筋阻锈剂(混凝土防腐蚀外加剂)是加到混凝土中能够降低钢筋腐蚀的物质。 |
| 3. | Top - directly as a basis and foundation of the bearing surface as the top - embedded steel bearings or bearing surface , the supporting surface , the anchor bolt ( anchor ) position should be consistent with the allowable deviation of norms 基础顶面直接作为柱的支承面和基础顶面预埋钢板或支座作为柱支承面时,其支承面、地脚螺栓(锚栓)位置的允许偏差应符合规范的规定。 |
| 4. | Post - embedding steel technique is a new type of building reinforcing and rebuilding technique with excellent technical advantages , the research development of which has become a very active part of modern building structure reinforcing and rebuilding techniques 植筋技术是一种新型的建筑物加固改造技术,由于特有的技术优点,其研究开发已成为现代建筑结构加固改造技术中极具活力的分支。 |
| 5. | Durability ' s of the material such as permeability , heat - resistance , carbonation and steel bar - protection were tested . the bonding characters between anchoring material matrix and post - embedding steel bar , the matrix and the concrete structures were studied 在植筋锚固长度足够的条件下,混凝土与锚固砂浆的界面粘结强度大小直接决定了植筋锚固的控制荷载,粘结界面成为受力的薄弱环节。 |
| 6. | Summarizing the above - mentioned research results , the design method of two kinds of connection ways of steel braces is proposed , which include the calculation formula of the steel braces , the head studs , steel angels at four corners of beam and column and embedded steel framework 本文在上述试验的基础上,提出了两种支撑加固连接方式的计算公式,包括支撑杆件、栓钉、外包钢连接和钢内框连接等。 |
| 7. | Here the hsc of sompa is achieved through adding super - effective water reducer , fined slag and silicon fume , and decreasing the water / cement ratio . by varying the area ( spacing ) of tension bars , compressive bars , vertical links and distribution steel and embedding steel fiber and polypropylene fiber we try to improve the behaviors of reinforced high performance concrete one - way spanning slabs in bending , so that its ductility be greater than 5 . with the same arrangement of steel the width of bending member is varied to observe the effect of the width / depth ratio on the ultimate compressive strain of concrete 通过变化受拉筋含筋率和受压筋、箍筋(钩筋、分布筋)含量,或掺加纤维使之成为钢纤维高强混凝土( sfrhsc )和聚丙烯纤维高强混凝土( pfrhsc ) ,对高强混凝土双筋截面梁、板的受弯性能进行了试验研究,试图改善高强混凝土受弯构件的延性,使其延性比大于5 ;并在相同配筋情况下,通过变化截面宽度,研究了高强混凝土受弯构件的宽高比对压区混凝土极限应变的影响;并对试验构件的裂缝发展情况进行了观测。 |
| 8. | In this paper , mechanism of embedded steel framework is analyzed . the steel framework has superiority in load - bearing capacity as a self - equilibrium system . we can draw from analysis that the embedded steel framework can be designed according to the criterion of steel - concrete composite structures 本文还对钢内框的受力机理进行了探讨,钢内框作为一种自平衡体系在传力机理上有其优越性;钢内框的设计可以按照型钢?混凝土组合结构来计算,本文提出了钢内框的构造。 |