推荐回答(3个)
只给15分,但还是帮你翻好了。能加点分最好。
There are three main types of steel used in concrete.The commonest type consists of ordinarymild-steel bars which vary in diameter form 3/16 in.to 2 in ;although bars greater than 1 in.diameter are only used in large scales construction work.
High-tensile steel bars are also used for entirely for prestressed concrete,which will be dealt within the next passage ,have much higher strengths than the stels than the steels used for ordinary reinforced concrete. The allowable stresses used for these high-tensile wires may be up to about eight times that for mild steel and the stress for the high-tensile alloy bars is sbout four and half times the mild-steel stress.
用于混凝土的钢主要有三种类型.最常见的类型由普通的低碳钢筋组成,直径从3 / 16 英寸到2英寸,不过大于1英寸的钢筋只用于大规模的建设工程。 高抗拉强度钢筋完全用于预应力混凝土,它们将在下面的段落予以描述,它们比用于通常增强混凝土的钢筋具有高得多的强度。允许用于这些高强度钢丝的应力可高达中碳钢的约8倍,而高抗拉强度合金杆只有中碳钢允许应力的4.5倍。
Steel for ordinary reinforced concrete may be obtained in a variety of forms apart from the normal round bars.These include deformed and indented bars and a various tape of twisted steel.These bars can usually be relied upon to provide a better bond with the concerte than that obtainde with ordinary round bars,In addition to the improved bound,some of these types have a higher tensile strength and can be allowed to carry a greater load
除了通常的圆钢筋外,普通增强混凝土用的钢也可以多种形式获得,它们包括变形钢筋和螺纹钢筋,以及各种由钢扭绞成的带。这些形式的钢筋可以比通常的圆钢筋获得与混凝土更好的黏结。此外,为了改善黏结,这些钢筋形式中的某一些具有较好的抗拉强度而可以承受更大的负荷。
Mild steel has a high ductility compared with most of the high-strength steels,and this enbles it to stretch without breaking when it is suddenly overloaded beyond its ordinary safe working load.This also enables it to be bent readily into the required shapes.
中碳钢与大多数高碳钢相比有高的延展性,这使之受到超过其通常安全工作负荷的,突然的过载时能够伸展而不致断裂。这也使之能容易地弯曲成所需的形状。
The type of high-tensile steel used for ordinary reinforced concrete is less ductile than mild steel and is more difficult to bend,but it is generally quite for bending into the shapes normally required
用于通常增强混凝土的高抗拉强度钢的类型比中碳钢延展性差,更难弯曲,但它一般来说完全可以弯曲成通常所需的形状。
用在混凝土里的钢主要有三种,最普遍的是直径在 3/16 寸到2寸的普通低碳钢条,虽然超过1寸的钢条只只用在大规模的建设上。
抗伸强度高的钢条只用在预应力的混凝土,这将会在下一段讨论/说明。
很难, 机译好了
钢筋混凝土中主要应用了三种钢材。最常见的种类有直径4.7625mm到50.8mm的普通碳素结构钢筋,虽然直径大于25.4mm的钢筋只使用与大规模的建设工程中。具有高抗拉强度的钢筋同样被全面使用在预应力混凝土中,这在下一篇文章中会讲到。他比在普通混凝土中使用的钢材具有更高的强度。这些高抗拉强度钢筋的最大承载力可以比普通碳素结构钢最多高8倍之多;而高抗拉强度合金钢钢筋的承载力最高可以比普通碳素钢强4.5倍。
除了普通圆钢筋,用于普通混凝土的钢材可以以多种形式取材,其中包括变形了的和参差不齐的钢筋和各种扭曲了的钢材。这些钢筋可靠坚固,比普通圆钢筋具有更好的与混凝土的粘合力。除了更好的粘合力,部分这些钢材具有更高的抗拉强度,因而具有更高的载荷。
碳素结构钢比高强度钢材具有更强的延展性,这使它在突然承受超过其安全工作负荷的重量时能够拉伸而不至于断裂;这同样使它能够轻易弯曲成设计要求的形状。用于普通使用的混凝土中的具有高抗拉强度的钢材的延展性比普通碳素结构钢弱,且更难弯曲,但这种钢材一般来说可以弯成通常需要的形状。
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