預壓應力 的英文怎麼說
中文拼音 [yùyāyīnglì]
預壓應力
英文
compressive pre stress-
The concrete is subject to high compressive stresses and these are generally greatest when the prestressing is first applied to the concrete.
這種混凝土要承受高的壓縮應力,而壓縮應力一般在混凝土初次施加預應力時最大。Performance analysis of pre - stressed column on the 45 mn extrusion press
擠壓機預應力張力柱特點分析An interfacial pullout model for hooked fiber in cementitious materials
預應力混凝土壓力管道設計方法Load cells for compression and prestress force measurement
用於測量壓縮力和預應力的測力元件In view of cost, practicability and maneuverability, the special sintering diamond trepanning drill was developed for drilling ceramic composite components originally
根據復合構件加工中的各種缺陷,分析了採用預壓應力鉆削對改善表面加工質量的重要性。In this test, a special bolt - jack is used to exent of prestressing force to brace angles as the whole structure is under dead - load. in this state brace angles withstand partly load before twice - load and the stress and strain of concrete are decreased. in this way the aim of removal of load and strengthening can be reached
本試驗中採用專用螺栓千斤頂在恆定荷載水平下對混凝土柱角鋼撐桿施加預壓應力,使外包角鋼在二次受力前即分擔部分荷載,使混凝土應力水平和應變水平降低,達到卸載與加固同步進行的目的。The result show, most of the medium - strong earthquakes faults are dip - slip reversed, distribution of the main stress p axis is sector from west to east ; there are large difference between kuche and baicheng region in seismic activities, but the characteristic of cluster is same in the two region ; the distribution of medium - strong earthquakes is nw direction in baicheng region, it show, there can have a concealed fault ; small earthquake clusters ' activities can reflect the effect that local medium - strong earthquakes to the secondary small structure around it
結果表明:南天山東段中強震震源斷錯以傾滑逆斷為主,主壓應力p軸由西到東呈扇形分佈;相距較近的庫車與拜城地區地震活動存在較大差異,但均存在明顯的成叢性分佈特點;拜城地區中強地震分佈呈北西向可能預示著該區存在隱伏斷裂,小震群活動則可能反映了局部中強震對周圍次級小構造的影響。These can make up the shortcoming of slrcp ; 2 3. to study the steel stress development of penstock, ring - form slsfsrcp and horse - shoe slsfsrcp during curing period are monitored. the pre - tension stress due to expansion of self - stressing concrete can be used in design ; 4
對圓形和馬蹄形管道進行了28天養護期內力監測,研究了鋼襯鋼筋鋼纖維自應力混凝土壓力管道的自應力成長過程,明確了鋼筋的預拉應力數值,為此類改性管道設計直接提供依據; 4Not only t he self - weigh of every beam, the prestressing, the compression on the support of form scaffolding, constriction of concrete, creeping are considered when the inter nal force is calculated, but also the result of displacement and deviation of th esupport and precamber should be taken into consideration
施工階段的內力計算不僅考慮逐段施工梁的自重,預加應力,模板支架的支點壓力,以及混凝土的收縮、徐變;同時還應考慮施工程序,施工中的支座位移、支座偏差和預拱度等的影響。This thesis aims to analyze how to select and assign prestressed tendon, how to design anchorage bearing joint, how to control the crack, how to calculate the axial prestressed force and the third moment and how to design the edge column of top layer. on the base of the research in and out our country and construction of the prestressed structure, some helpful conclusion and suggestion are presented, which is suggestive for the design and construction of long span continuous prestressed concrete frame
本文將綜合設計與施工兩個方面,對預應力筋的選用、布置,錨固區的設計及構造處理,裂縫問題,側向約束對梁軸向預壓應力及柱中第三彎矩的影響,頂層大跨邊柱設計等幾個問題進行系統的分析研究,並在國內外研究和大量工程實踐的基礎上,提出了一些建議和預防措施,對此類工程設計和施工有一定的參考價值。On the other hand, for the pre - press stress being threw by the hub was inserted after cooling with liquid nitrogen, the poor transverse tension strength of the multi - ring flywheel rotor could be counteracted. so the rotate speed and energy storage density can be increased efficiently
而採用多環套裝纏繞技術製造的多層飛輪輪環,在利用溫差過盈裝配方法給復合材料輪環施加預壓應力后,能夠有效避免飛輪轉子的復合材料輪環部分因較低的纖維橫向抗拉強度而破壞失效,從而大幅度提高飛輪轉子的極限轉速和儲能密度。Secondly, the producing mechanism of crack in reinforced structure and factors which affect crack have been discussed, in the emphasis, the method is expounded, which applies first releasing then resisting, combination of releasing and resisting. in the method, flexible slit is applied firstly, which can make deformation of structure distributed, and decrease deformation energy, then the tiny expansion concrete and prestressed concrete with unbonded tendons are applied. and in the different phase, the compressive prestress is put on the concrete structure
其次,分析並論述了鋼筋混凝土結構裂縫產生的機理和影響因素,著重闡述了「利用先放后抗,抗放結合,綜合控制」的方法:即首先利用后澆帶,使混凝土結構分段變形,減小超長變形的影響;並採用微膨脹混凝土技術及無粘結預應力混凝土技術,分階段對混凝土結構施加一定的預壓應力,從而減小或完全抵消混凝土結構因混凝土硬化收縮引起的拉應力;再結合一些其他措施,成功實現鋼筋混凝土結構的超長無縫設計與施工。Aiming at the drilling defects in engineering ceramics, drilling with compressive pre - stress is proposed
針對工程陶瓷的孔加工缺陷,提出了預壓應力鉆削法以改善其入、出口的加工質量。6 ) horizontal braces force of horizon that results from tension. therefore, it reduces pre - compress stress. horizontal braces is stronger, it ' s influence is more important
( 6 )橫向約束的存在減弱了張拉在框架梁中形成的軸向力,從而減小在框架梁中預壓應力,橫向約束越強,它的影響就越大。The new concepts, such as the active supporting coefficient, the coefficient of strength utilization, the coefficient of pretensioned bolt length, the effective compressive zone, the coefficient of pretensioned stress diffusion, the framework and mesh structure of the effective compressive zone, and the critical supporting stiffness were put forward
提出錨桿主動支護系數、強度利用系數、預應力長度系數、有效壓應力區、預應力擴散系數、有效壓應力區骨架網狀結構及臨界支護剛度等概念。Principal compresso stress of mineralization epoch is measured 34 - 46ma by means of ae method, and its orientation is ew - trending by conjugate fracture, at last, the dynamic mechanics of the rhombic shear fault grid is analysised, ore - controlling law of the regional and ore - belt are determined, and combined with geophysical prospecting, ore - forming are forec ast
利用巖石聲發射測得成礦期主壓應力值為34 - 46mpa ,以共軛破裂求得主壓應力方位為近ew向,分析了本區菱形剪切斷裂網格控礦構造應力場的動力學機制。提出區域和礦帶的成礦控礦規律,結合物探進行了成礦預測。This is the first time to apply prestressed carbon fiber to roadbed engineer in the world. the high tensile strength and corrosion - resisting property of prestressed carbon fiber make it possible that the soil is in triaxial state of stress. therefore, the embankment fill can be compacted, the settlement can be reduced and side slope stability can be improved
本課題第一次將預應力碳纖維技術應用於路基工程中,利用碳纖維的高抗拉強度和高耐腐蝕性,對其施加預應力,使路基土體處於三向受壓應力狀態中,從而加強路堤填料的密實程度、減少路堤的總沉降、增加邊坡的穩定性。Analysis of pre - tightened stress has been made on pre - stress of low - pressure flange ' s spiral wound gasket, and through changing structure and controlling the manufacture process of gasket, some experiment studies have been made to let mechanical performance meet the needs of bolt load and let flange joint meet the needs of seal behavior
摘要分析了低壓管法蘭用纏繞式墊片的預緊應力,對通過墊片工藝結構的調整使其力學性能與緊固件的要求一致,從而使法蘭接頭符合操作的密封性要求進行了試驗研究。Abstract : the saturation behavior of stress current is studied. the three types of precursor sites for trap generation are also introduced by fitting method based on first order rate equation. a further investigation by statistics experiments shows that there are definite relationships among time constant of trap generation, the time - to - breakdown, and stress voltage. it also means that the time constant of trap generation can be used to predict oxide lifetime. this method is faster for tddb study compared with usual breakdown experiments
文摘:基於一階速率方程,討論了恆定電壓應力下應力電流的飽和行為.通過對應力電流的擬合,發現存在三類缺陷產生的前身.更進一步的統計實驗顯示,在缺陷產生時間常數、擊穿時間以及應力電壓之間存在著明確的關系.這意味著缺陷產生時間常數能夠被用於有效預測氧化層的壽命.與常規的氧化層擊穿實驗相比,基於缺陷產生時間常數的預測更快、更有效Connectors for electronic equipment - tests and measurements - voltage stress tests - test 4c - voltage proof of pre - insulated crimp barrels
電子設備連接器.試驗和測量.電壓應力試驗.試驗4c .預絕緣捲筒的電壓檢驗分享友人