1) tension
[英]['tenʃn] [美]['tɛnʃən]
张拉
1.
Construction control of tension and grouting of pre-stressed concrete continuous box beam;
预应力混凝土连续箱梁的张拉与压浆施工控制
2.
The pre-stressed tension and stress supervision during cantilever casting bridge s healing;
悬浇桥梁合拢时的预应力张拉和应力监控
3.
Cable-tension Analysis of Stay-cable Prestressed Steel Lattice Shell Structure in Stadium Terrace;
体育场看台预应力斜拉钢网壳拉索张拉分析
2) stretching
[英][stretʃ] [美][strɛtʃ]
张拉
1.
The processing of T-beam prestress tendon and stretching construction technology;
T梁预应力筋的加工与张拉施工工艺
2.
Aiming at prestress stretching question,the treating measures were provided,so as to provide references for us.
阐述了预应力楼板结构中,采用快速铺放预应力板筋施工、减少施工难度的方法,并结合工程实例,从方案及现场施工着手,进行了一定的探索,针对预应力张拉问题提出了处理措施,以供参考。
3.
In order to guarantee the construction quality of 500 mm×1 900 mm bonded prestress beam,its construction procedure,installation and demolishment of formwork,corrugated pipe setting,prestressed beam baiting,threading and stretching duct grouting and end envelop and other construction points were illustrated,so as to guarantee both quality and quantity.
为了保证500 mm×1900 mm预应力梁的施工质量,对该预应力梁的施工顺序、模板安装与拆除、波纹管留设、预应力筋下料、穿束与张拉孔道灌浆及端部封裹等方面分别阐述其施工要点,保质保量地完成了该预应力大梁的施工。
3) tensioning
[英]['tenʃən] [美]['tɛnʃən]
张拉
1.
Application on the Double control technology in the process of tensioning the tendons with post potensioning method;
“双控”技术在后张法预应力筋张拉中的应用
2.
The Cause of Sliding and the Modified Recommendations of Wedge during the Post-tensioning Procedure;
锚具在张拉过程中滑丝现象的机理与结构改进
3.
Erecting and Tensioning Stay Cables of the Second Changjiang River Bridge in Wuhan;
武汉长江二桥缆索挂设与张拉
4) Stretch
[英][stretʃ] [美][strɛtʃ]
张拉
1.
Research on prestress stretching control of a large-span truss string structure;
大跨度张弦桁架预应力张拉控制研究
2.
According to mentioned principle,cables were stretched by three degrees.
拉索张拉原则为在正常使用荷载状况下,网架跨中位置挠度值为0。
3.
The paper summarizes the technical preparation before the stretch of prestressed concrete beam, focuses on the determination of coefficient a、b in regression equation and the computation of the stretch of prestressed concrete hollow board, and explains by examples.
总结了预应力混凝土梁板张拉(后张法)前的技术准备工作,着重论述了回归方程中a,b系数的确定及预应力混凝土空心板的张拉计算,并举实例进行了说明。
5) extension
[英][ɪk'stenʃn] [美][ɪk'stɛnʃən]
张拉
1.
The extension construction of prestressed ring beam without bond;
无粘结预应力环梁的张拉施工
2.
Important point description of prestressing extension construction on the prestressing continuous bridge
预应力连续梁桥预应力张拉施工的要点简述
3.
Based upon analysis of questions existed practical measures are proposed for cracks control before extension construction.
介绍了无粘结后张预应力钢筋混凝土的施工工艺流程、后张无粘结预应力混凝土结构的施工工艺及需重点注意的问题,并分析了其目前存在的不足,同时论述了无粘结预应力钢筋混凝土结构能顺利张拉前的裂缝控制。
6) extension
[英][ɪk'stenʃn] [美][ɪk'stɛnʃən]
拉张
1.
During late Mesozoic-Cenozoic, HYS inversion structure in Tuha basin underwent the following main tectonic evolution phases: tensile stretch, compressed uplifting, extensional depression and severely compressed folding.
吐哈盆地HYS构造从晚中生代至新生代经历了拉张伸展期、挤压抬升期、伸展拗陷期和强烈挤压褶皱期等演化阶段。
2.
A suite of volcanic associations with the flysch sediments derived from recycled orogens was successively accumulated in the basin during the Late Triassic due to the extension and convergence of the Garze Litang Ocean and the convergence and collision of the Jinshajiang Ocean.
乡城弧间盆地在晚三叠世时受甘孜理塘洋由拉张到汇聚和金沙江洋由汇聚到碰撞的影响，先后堆积了由拉张沉降到汇聚抬升的火山岩系列组合，同时伴随着来自再旋回造山带物源区的复理石沉积。
补充资料：预应力钢筋张拉设备
使预应力混凝土结构里的钢筋产生并保持预应力的设备。分手动、电动和液压传动张拉机等。液压张拉机拉力大、重量轻，使用灵活方便。按钢筋张拉工艺有先张法和后张法两种。先张法用的夹具可以重复使用；后张法用的锚具将成为构件的一部分，不能取下再用。常采用不同的夹具来锚固各种钢筋，圆锥形夹具用于锚固直径12～16毫米的钢筋，镦头梳筋板夹具适用于板类构件中张拉低碳冷拔钢丝，波形夹具可成批张拉和锚固钢丝,螺杆锥形夹具则用于钢筋束的后张自锚。作业时,钢筋的一端锚固，另一端由张拉机通过夹具把钢筋夹紧张拉。穿心式张拉机作业时将钢筋穿入，打开前油嘴，由液压泵把高压油送入后油嘴，使张拉缸后退，利用尾部锚具将钢筋锚固并张拉。张拉到所需应力值后，关闭后油嘴。前油嘴进油，活塞向前推出，顶压锚塞，使钢筋锚固。回程时，活塞靠弹簧复位，完成张拉。
管类构件可采用环向预应力缠筋机，在管坯上缠绕预应力螺旋钢筋（见图）。作业时,管坯由卡盘夹持，通过调直张紧滚轮在管坯上绕4～5圈应力不大的螺旋钢筋,此后液压缸使两侧的张紧轮分开，钢筋便张拉到预定的应力值。此时管坯旋转，并开动小车，管体上就连续绕上预应力螺旋筋。螺距的大小由小车的行走速度来控制。
随着预应力构件生产批量的增加，一些专用的连续张拉设备得到发展，其特点是成组张拉效率高，需要的张拉力较小，可双向交叉配筋，张拉均匀，易于实现自动化生产。
管类构件可采用环向预应力缠筋机，在管坯上缠绕预应力螺旋钢筋（见图）。作业时,管坯由卡盘夹持，通过调直张紧滚轮在管坯上绕4～5圈应力不大的螺旋钢筋,此后液压缸使两侧的张紧轮分开，钢筋便张拉到预定的应力值。此时管坯旋转，并开动小车，管体上就连续绕上预应力螺旋筋。螺距的大小由小车的行走速度来控制。
随着预应力构件生产批量的增加，一些专用的连续张拉设备得到发展，其特点是成组张拉效率高，需要的张拉力较小，可双向交叉配筋，张拉均匀，易于实现自动化生产。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条