預應力度 的英文怎麼說
中文拼音 [yùyīnglìdù]
預應力度
英文
degree of prestress-
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。Calculation and research of normal section strength of prestressed concrete skew hollow slab
預應力混凝土斜交空心板正截面強度計算研究Technical consultant for manufacture of big span prestressed concrete reiteration plate
4 .大跨度預應力鋼筋砼疊合板生產技術的咨詢。Calculation methods for the ultimate stress and effective height of external prestressing tendons
體外預應力筋極限應力和有效高度計算方法Ultimate strength analysis for external prestressed concrete beams
體外預應力混凝土簡支梁的極限強度分析This paper sets up a fuzzy optimum math - model of the prestressed degree for prestressing bundle disposition of prestressed concrete continuous beam bridges, which is transformed into a clear math program by - level cut - set. by the solution of the clear math program, a succession of reasonable prestressing moments can be obtained. then it is convenient to dispose the prestressing system by only taking account of geometric factors of all controlling sections. based on this, a theory of automatic disposition of the prestressing bundles is proposed and an engineering example is given to demonstrate it
建立預應力混凝土連續梁橋預應力度的模糊優化問題，按-水平截集解法，將模糊優化問題轉化為確定性的數學規劃問題.求得一較合理的消壓彎矩后，只需按控制截面的構造進行預應力體系設計.在此基礎上提出了配束自動化的基本思想，並以一實例說明其理論應用Abstract : this paper sets up a fuzzy optimum math - model of the prestressed degree for prestressing bundle disposition of prestressed concrete continuous beam bridges, which is transformed into a clear math program by - level cut - set. by the solution of the clear math program, a succession of reasonable prestressing moments can be obtained. then it is convenient to dispose the prestressing system by only taking account of geometric factors of all controlling sections. based on this, a theory of automatic disposition of the prestressing bundles is proposed and an engineering example is given to demonstrate it
文摘:建立預應力混凝土連續梁橋預應力度的模糊優化問題，按-水平截集解法，將模糊優化問題轉化為確定性的數學規劃問題.求得一較合理的消壓彎矩后，只需按控制截面的構造進行預應力體系設計.在此基礎上提出了配束自動化的基本思想，並以一實例說明其理論應用The main factors including concrete cover and prestressing levels which may have influence on the fire resistance of the simply - supported slabs are examined. the deflection and prestress are presented. from the results of tests, the fire endurance of the simply - supported slabs are given
在簡支板的火災行為試驗研究中主要考慮了普通鋼筋的保護層厚度和預應力度兩個因素，主要測試了構件的撓度變化及預應力的變化，並由此得出了其耐火極限。According to hysteretic properties under low - cyclic loading and some other suggestions, the moment - curvature restoring force computation model of unbonded partially prestressed concrete section, which considering the ppr, is given
此外由於施加了預應力，使得該結構具有良好的恢復力特性。本文還根據試驗結果和相關參考文獻提出了考慮不同預應力度的預應力扁梁截面彎矩?曲率恢復力計算模型。The low - cyclic reversed loading tests of two unbonded partially prestressed concrete frames with different ppr have been carried out. the aseismic behaviors are analyzed and compared, with emphases on failure mechanism, hysteretic property, displacement ductility, energy - dissipation capacity as well as stiffness degeneration, etc. the results show, when designed rationally, the unbonded partially prestressed concrete frames can form beam hinge energy - dissipation machine and total destroy mechanism
通過兩榀不同預應力度的無粘結部分預應力混凝土扁梁框架結構的低周反復荷載試驗，分析研究了無粘結部分預應力混凝土扁梁框架結構的破壞形態、滯回特性、位移延性、耗能能力、承載力及剛度退化等抗震性能。The main factors including prestressing levels, length of negative moment reinforcement and fire case which may have influence on the fail modes of the continuous slabs are examined. fire case which include end span under fire, middle span under fire and end - middle span under fire simulate different room catch fire. the regularity of deflection, prestress and reactions are presented
在連續板的火災行為試驗研究中主要考慮了預應力度、負彎矩筋的長度以及不同的受火工況三個因素，其中不同受火工況包括邊跨受火、中跨受火及邊中兩跨同時受火三種情況，以模擬不同房間失火的情況。Thirdly, for the sake of convenience for calculating the section stiffness of prestressed concrete tower drum, this paper interprets the relationship between the stiffness dropping - coefficient of prestressed concrete tower drum cross and prestress degree. based on the cross stiffness coefficient under different prestress, a brief method for calculating the stiffness dropping - coefficient is presented in this paper
第三，為了便於預應力混凝土塔筒截面剛度的計算，本文對塔筒截面剛度降低系數與截面預應力度的關系進行了研究，並根據不同預應力度下的截面剛度降低系數，歸納總結出一種簡單的剛度降低系數計算方法。Fail modes which are influenced by prestressing levels, length of negative moment reinforcement and fire case are proposed
考察了預應力度、負筋長度及不同受火工況對破壞形式的影響。Based on the experiments under low reversed cyclic loading, failure pattern, hysteresis curves, skeleton curves, restoring force model, displacement restoring capacity, ductility and rigidity degeneration of prestressed concrete beams with high ppr are studied systematically
摘要基於低周反復荷載試驗，對高預應力度混凝土梁的受力過程、破壞形態、滯回曲線、骨架曲線、恢復力模型、變形恢復能力、延性、剛度退化等抗震性能進行了較深入的研究分析。The contents include as follows : the influencing factors of the displacement ductility factor of the unbonded partially prestressed concrete frame structures, such as stirrup reinforcement characteristic value, nominal shear span ratio, axial compression ratio, the appearing order of plastic hinges and partial prestressing ralio ( ppr ) are discussed. the formula of displacement ductility factor of the unbonded partially prestressed concrete frame structures is suggested by regression analysis. with regard to the aseismic design and the request of ductility and energy dissipation, the restriction of the flat - beam / column sectional size and aseismic reinforced design are discussed
本文主要包括以下內容：討論了配箍特徵值、名義剪跨比、軸壓比、塑性鉸出現順序、預應力度等因素對無粘結部分預應力混凝土框架位移延性系數的影響，回歸了考慮影響因素的位移延性系數計算公式；對無粘結部分預應力混凝土扁梁框架結構，闡述了抗震設計對扁梁、柱截面尺寸的要求與限制；對滿足延性和耗能要求的無粘結部分預應力混凝土扁梁控制截面抗震配筋進行了探討；通過對無粘結部分預應力混凝土扁梁梁端的受力分析，改進了以往扁梁梁端扭矩設計值計算公式。Previous research showed that the unbonded prestressed concrete member has the similar ductility to the commom reinforced concrete member, while the energy - dissipating capacity is worse that can be found from the narrow hysteretic characteristic
以往的研究也表明：無粘結預應力混凝土構件具有與普通鋼筋混凝土構件相近的延性，但其耗能能力隨著預應力度的加大而有所降低，表現在滯回環的捏攏現象越來越明顯。Based on such characteristics and the researches of the country and outside, this paper mainly studies at the automatic distribution of prestressing cables of prestressed concrete beam bridge and the automatic working drawing of the steel bundles. in this paper, based on the study of the group of the project, it sets up a fuzzy optimum math - model of the prestressed degree for prestressing cables disposition of prestressed concrete continuous beam bridges. and in the drawing of the steel bundles, the set up of the " prestressing cable model " makes its course convenient
本文針對現有的橋梁cad系統的不足，從工程實際應用的角度出發，初步構想了預應力混凝土梁橋cad系統的框架，並主要在其自動配束以及預應力鋼束布置圖的自動繪制方面作了一定的分析與研究：在配束方面，根據其設計的特點及存在預應力束調配過程煩瑣的現象，引入數學方法，基於模糊集合和預應力度的概念，初步探討了連續梁橋預應力鋼束自動配置的機理；在鋼束圖的繪制上，根據對鋼束特點的分析，提出了「鋼束模型」的概念，對預應力束進行描述，並給出了控制「鋼束模型」以及鋼束布置的參數，據此，作者採用fortran語言編寫了鋼束布置圖的繪製程序，實現了鋼束布置圖的自動繪制。Valuable conclusion in engineering are drawn for practical design. the method of getting reasonable prestress degree for suspendoem which is restricted by intergral stability was discussed. optimizing programs are developed with the axis force and joint displacement of upper dome as object function respectively, the effective method of prestress degree for suspendoem which is
探討了穩定約束的弦支穹頂鋼索合理預應力度的優化方法，分別以網殼桿件內力、節點豎向位移和節點垂直向下位移為目標函數編制了優化程序，得到了整體穩定約束的弦支穹頂結構確定鋼索預應力值的可行方法。And studies show that prestressed concrete beams with high ppr have good displacement restoring capacity, better ductility and seismic performance as a whole
研究表明：高預應力度混凝土梁具有優良的變形恢復能力以及較好的位移延性，總體上抗震性能較好。Based on domestic and international researches, this paper have experimental researched on crack - resistance and seismic behaviors of prestressed small - sized concrete hollow block masonry, and below is the concrete contents of research : adopt a finite element analysis soft, and proceed nonlinear finite element analysis to different type and different structure measure of walls. the result expresses that the walls which have window, have stress concentration at the window cape, and easily appear the cracks, the same type walls " carrying capacity of crack - resistance are greatly improved after being prestressed, and compare the different type walls, a problem is discovered that window or hole is consumedly lowered the carrying capacity of crack - resistance and stiffness of wall
具體研究內容如下：採用有限元分析軟體對不同類型、不同構造措施的墻體進行了非線性有限元分析，結果表明：開窗洞墻體在窗角處存在應力集中，容易開裂；同種類型墻體在施加低預應力度后，其抗裂承載力有較大的提高；不同類型的墻體比較發現，窗洞對墻體抗裂性能、剛度有很強的消弱作用，與試驗結果相符。分享友人