預張拉 的英文怎麼說
中文拼音 [yùzhānglā]
預張拉
英文
pretension-
With two examples of the prestressed celom tension in the continuous girder design, which is utilized in the projects of mingzhu elevated railway and xinmin elevated railway, the author analyses the characters of the design and the application of this technology
摘要就軌道交通明珠線、莘閔線等工程的連續梁設計中預應力束體內張拉的實例,分析其設計特點和應用。This article comtined the practice of the projtct of jiaojiang bridge and analyzed strand wire with high strength and low laxation, the anchorage system, the tentioned technice in the construction, and the principle of anchorage
摘要本文結合椒江大橋工程實踐,分析了國產高強度低鬆弛鋼絞線和預應力錨固體系,在施工中的張拉工藝、錨固原理。Abstract : the monitoring of tieback prestress and its existing problems are discussed for foundation pit protection at dongfang square, beijing, and the problems in the tensile, such as the loss of prestress, bias in loading, are explained
文摘:對北京東方廣場基坑支護中錨桿預應力的監測及其所出現的問題進行了分析,說明張拉過程中所存在的問題(預應力損失、偏心荷載等) 。The prestressed cable is a long - span structure which represents tensegrity structure thought. tensegrity structure is not stable without prestress and structural stiffness should be guaranteed by prestress. the structural stiffness changes compatibly with the load
張拉整體結構在無預應力情況下結構是不穩定的,結構的剛度依靠預應力予以保證,並隨著荷載的作用,結構的剛度不斷變化。The article structure the landslide prevention and cure, the structure of prestress anchors and its application in detail. basing on the geology condition of fabricating yard, we calculate the solid power and the length of anchor rope. we have worked out the experiment research scheme, and has carried on the earlier stage experiment, field demarcation experiment and has opened pulling the experiment on the spot. ten teams of steel rope to two teams of structure types twist the experimental data that thread internal stress and the total pulling force has been in progress research, and has put forward raising the measure of solid capability of prestress anchor and administering possessing
本文以川藏公路滑坡路段為研究對象,對滑坡的治理、預應力錨索的結構、作用及其在滑坡防治中的應用進行了詳細的分析;基於施工現場的地質條件,對錨索錨固力及錨索最佳錨固段長度進行了理論計算;制定了實驗研究方案,進行了前期實驗、現場標定實驗、實地張拉實驗;對兩組結構型式的十組鋼絞線內應力及總張拉力的實驗數據進行了研究,提出了提高預應力錨索錨固性能的措施,以及具體的施工方案和施工工藝。Inner force on strengthening concrete statically indeterminate beams prestressed with localized tendons
局部張拉預應力筋加固混凝土超靜定梁的內力計算Engineering apply and analysis of reinforced wall with geogrid by pre - tension
預張拉土工格柵加筋土擋墻工程應用與分析( 2 ) the crack load increases with the increase of the amount of the prestressing steel or the tensioning stress
( 2 )預應力筋用量的增加、張拉控制應力的增大使預應力框架梁、柱的開裂荷載提高。Influence of the amount of the prestressing steel and the tensioning stress to the crack load of the beam is greater than that to the crack of the column
並且預應力筋的用量和張拉控制應力對梁開裂荷載的影響要比對柱開裂荷載的影響要大得多。Additionally, modal parameters are tested under different prestressed forces and during the course of the lose of prestressed forces. finally, different vibration conditions, such as different rigidity of the hammer and different forces, are also studied
另外通過振動測試,對預應力梁在不同的張拉控制應力下、預應力損失過程、不同激勵條件下構件的實測模態參數的變化規律進行了試驗研究。The results indicate that the ratio of span to rise, the ratio of reinforcement and the stretching controlling stress are the three primary influencing factors to the failure pattern of the slab. in addition, the relationships between the ratio of deflection to span and the ratio of span to rise and the stretching controlling stress submit to linear curves, the relationship between the ratio of deflection to span and the ratio of reinforcement submits to a quadratic parabola curve
運用數值分析程序計算了175組不同跨高比、配筋率、張拉控制應力的中強( 1270mpa )螺旋肋鋼絲預應力空心板,結果表明跨高比、配筋率、張拉控制應力是影響空心板破壞形態的主要因素,且構件撓跨比與跨高比和張拉控制應力呈線性關系,與配筋率呈二次拋物線關系。Taking an ultimate deflection more than 1 / 50 of calculating span as the determinant term, by the means of numerical analysis and regress equation respectively, this paper discusses the reasonable stretching controlling stress of usual span and reinforcement slabs for design reference
以極限撓度達到跨度的1 50作為延性破壞的判定指標,本文分別運用數值分析程序試算和回歸方程得出了常用跨度、常用配筋的中強( 1270mpa )螺旋肋鋼絲預應力混凝土空心板的張拉控制應力的取值,供設計參考。It shows that the method suggested in the paper is simple, applicable for engineering and has good precision. on the bases of the formulas deduced, and combining with relative test datas, it studies in the paper several factors influencing the bearing performance of the simple beams, such as shape of the external tendons, the equal moment segment length, span - to - depth ratio of the beam, valid initial prestress of the external tendons, area of the internal tension reinforcement, strength of the concrete, vertical distance between
在公式推導的基礎上,結合相關試驗資料,研究了體外筋的形狀、等彎矩區長度、梁跨高比、有效張拉預應力、體內受拉筋配筋率、混凝土強度、錨固點到樑上邊緣在垂直方向上的距離、體外預應力筋水平段長度(雙折線型體外筋的情況)以及荷載類型等對體外預應力混凝土簡支梁受力性能的影響。Quality control for tensioning of prestressed tendons of concrete hollow slab
混凝土空心板預應力筋張拉的質量控制With the study of the ability of unbounded ppc structure and the development of materials of unbounded ppc and the technique of light jack, the advantage of unbounded ppc structure has been widely recognized
隨著對無粘結預應力結構性能的研究,無粘結材料供應充足和輕型張拉千斤頂技術的發展,以及無粘結預應力樓蓋在高層建築結構中的普及,無粘結預應力混凝土結構的優點已得到廣泛的認可。During the on - site experiment for full - scale segmental model of the girder, stress and cracks of the side - boxes were surveyed
進行標準梁段足尺模型試驗,觀測試驗模型橫向預應力鋼束張拉后,主梁邊箱測點的應變,以及模型表面混凝土裂縫的情況。Test analysis on the tension - caused cracks in the post tension pre - stressed cored slabs
后張法預應力空心板張拉裂縫試驗分析Introduced by prestressed pier in the gate of spillway in xiao xia hydroelectric power station, the text reasonably established 3 - d finite elements mechanic model by the advanced finite elements popular in the world which can expediently impose tension of anchor funicular at its place. it also considered possible diversified combination of loading, and indicated that the effect of its prestressed action is fruitful compared with its conventional counterpart by study of mechanic calculation in comparison. as a result, it vastly improved burdening state of pier. by analysis of 3 - d finite element method, it also gained the stress result indifferent boundary conditions such as breast wall joint support and fixed support, and the displacement result in diversified loading combination. those results gained the instructive and reference value in design of prestressed pier
本文結合黃河小峽水電站泄洪閘預應力閘墩這一工程實踐,採用國際上已成熟的有限元方法,合理地建立了預應力閘墩的三維有限元模型,該模型可方便地按預應力錨索的點位施加錨索預張拉力,考慮了可能發生的多種荷載工況組合,並與無預應力閘墩結構進行了對比分析研究,指出其預應力效果是明顯的,可以大大改善閘墩結構的受力狀態,通過三維有限元分析,還得到了胸墻簡支、固端不同情況下的應力成果和各荷載下的位移成果,這些成果的取得對預應力閘墩的設計具有一定的指導和參考價值。The creep behavior of carbon fiber reinforced polymers is studied, and the regularity between time and creep deflection is analyzed. creep model is established by statistic analysis, as well as the influence on engineering practice and prestressing bonding frp technique induced by creep behavior of cfrp is analyzed
研究了卸載后碳纖維片材的強度、模量變化情況,分析了徐變性能對加固綜合效果的影響以及對預張拉粘貼碳纖維片材加固混凝土結構的影響。The design of cable dome is divided into three parts : pre - stressed calculation, static load applied calculation and variation load applied calculation. ansys software was adopted to compute the structure. the ansys program has many analysis capabilities, ranging from structural analysis, thermal analysis, electromagnetic field analysis to cfd flotran analysis
索穹頂結構分下述三個狀態進行計算:預張拉狀態、施加屋面恆載時的計算和屋面活荷載作用下的計算;本文對索穹頂結構進行計算時所選用的計算軟體為ansys軟體,它是融結構、熱、流體、電磁、聲學於一體的大型通用有限元分析軟體,可廣泛應用於核工業、土木工程、地礦、水利等一般工業的計算及科學研究。分享友人