查询词典 prestressed concrete

Different countries have different views in whether or not to entrain air in concrete, especially in prestressed reinforced concrete.

然而是否可以在预应力混凝土结构中引气，国内外规范中存在较大差异。

In our countrys criterion, entrain air in prestressed reinforced concrete was forbidden in public proclamation.

由于种种原因，至今我国规范仍然规定，禁止在预应力及蒸养混凝土结构中引气。

This design proposal is the prestressed reinforcement concrete conatant cross-section box shape continuous bridge, Main span disposal is 45+45+45m, the bridge floor width is 28m, the king post uses is the single box single room.

本设计方案为预应力钢筋混凝土等截面箱形连续梁桥，主桥布置为45+45+45m，梁桥面宽28m，采用单箱单室梁。

The prestressed reinforced concrete continuous rigid frame bridge is a kind of bridge which is nice wholeness , bearing property and has bright and pithiness bridge style .

预应力混凝土连续刚构桥是一种结构整体性好，受力合理，造型简洁明快的混凝土桥型，既保持了连续梁无伸缩缝，行车平顺的特点，又有T型刚构桥不设支座，施工方便的特点。

The parameters included drag-span ratio of cable,the value of prestressing force,the thickness of reinforced concrete floor,the cross area of tightwire and the number of prestressed tig.

利用ANSYS有限元分析软件建立了钢筋混凝土楼板模型和预应力空间组合结构模型，对楼板模型和预应力空间组合结构模型分别进行了模态分析，同时分析了垂跨比、预应力度、拉索截面面积、纵向连接索数和楼板厚度对预应力空间组合结构自振特性的影响

This paper mainly focused on some basic research as follows:(1) ANSYS finite element calculation software and the APDL design language were used to set up two model structures—the reinforced concrete floor model and the prestressed space composite trass model.

本文就该结构做了以下几点基础性研究工作：(1)利用ANSYS有限元分析软件和APDL参数设计语言建立了两个模型：钢筋混凝土楼板模型和预应力空间组合结构模型，对楼板模型和预应力空间组合结构模型分别进行了非线性静力分析，模态分析和竖向动力荷载下的非线性瞬态分析，并对两种结构的力学行为做了比较，得到了一些初步结论。

Keywords:super-span stretched stereoscopic steel pipe trussing; wind tunnel experiment; joint; prestressed; composite steel and concrete; diagonal column

关键词］超大跨度伸臂矩形立体管桁架；风洞试验；节点；预应力；型钢混凝土；斜柱

Central Southern China Electric Power Design Institute , Wuhan 430071 , China Abstract : The project of strengthening flawed concrete chimney uses unboundedly prestressed strand hoop.

在钢筋混凝土烟囱裂缝加固工程中采用了无粘结钢绞线预应力环箍，对加固过程进行了现场测试，经预应力环箍加固后的烟囱筒壁中建立的环向压应力在环箍处最大，其值约- 1.0 MPa ，环向压应力衰减较快。

Prestressed Subassemblage concrete frame is assembled by precast prestressed beams and columns with tendons in the joints of the frames. These beams and columns are hoisted in site and the tendons are passed through the moire pipes. So prestressing force is brought to the joints of the frame.

预压装配式预应力混凝土框架是采用工厂化生产的预制柱和预制预应力梁，运至现场直接吊装，梁柱就位后，将后张预应力筋穿过梁柱预留孔道，对节点实施预应力张拉预压。

In cast-in-place concrete structure, high-strength cement concrete hollow tube technology is the common beam, floor slab of ribs, prestressed plate without bond after an in-situ development of the new structure of the new system.

在现浇砼结构中，高强水泥薄壁管空心砼技术是继普通梁板、密肋楼板，无粘结预应力平板后新开发的一种现浇新结构体系。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐