預受力的 的英文怎麼說
中文拼音 [yùshòulìde]
預受力的
英文
prestressed-
To study the flexural behavior, ultimate bearing state and laws of internal force redistribution of prestressed concrete continuous beams cast by different construction methods, the model tests for three pieces of the continuous beams were carride out, in which three kinds of the construction methods, such as those of lowering formwork supports at one time, transferring simply - supported structure into the continuous one and casting the beam by cantilever construction, were considered
摘要為研究不同施工方法下預應力混凝土連續梁的彎曲性能、極限受力狀態及內力重分佈規律,進行了3根連續梁模型試驗,分別考慮一次落架、簡支變連續和懸臂施工3種施工方法。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。The pre - stressed inferior torque to the structure stress influence, exists to the entire stress stage, it to the structurestress antisymmetry effect is quite explicit, especially the opposite side king post is turned the influence
摘要預應力次扭矩對結構受力的影響,存在於整個受力階段,其對結構受力的反對稱效應是比較明確的,尤其對邊主梁的受扭影響。Stress variation research of external tendons under live load in simple beam bridges
簡支梁橋體外預應力筋受活載作用的應力變化Based on the destructive test of certain old pre - stressed concrete hollow slab after structural strengthening by cfs, the destructive mechanism and ultimate bearing capacity of old pre - stressed hollow slab after structural strengthening is being researched, which is useful for the strengthening design of old bridge and solvating of single slab problem
摘要通過某已使用10年的舊橋預應力混凝土空心板受拉區碳纖維布加固后的破壞荷載試驗研究,對受拉區加固后的舊橋預應力混凝土空心板的破壞機理、變形性能及極限承載能力等進行了研究,為舊橋預應力混凝土空心板的加固設計及單板受力問題的分析解決提供了試驗依據。It also investigates the effect of secondary torque, the characteristics of moment redistribution subjected to reversed cyclic loading, and the role of spandrel beams in the overall response
著重討論了預應力次扭矩對結構受力的影響、水平荷載作用下結構的彎扭分配規律以及如何進行邊主梁的合理設計等問題。In this paper, a high performance sma system applied to steel bridge deck is put forth in allusion to the pavement project of the wuhan junshan yangtze river highway bridge. it comprises steel slab, zn coating layer, closing layer, adhesive, pre - mixed asphalt stone and dual layer sma from bottom to top. it is based on the fea results of the forces and deformation of the pavement layer by means of the algor feas, according to this bridge ' s traffic and the ambient temperature varying range of the pavement layer
本文針對武漢軍山長江公路大橋鋼箱梁橋面鋪裝工程,從鋪裝層環境溫度變化范圍、交通量等使用條件出發,在用algorfeas有限元分析軟體分析鋪裝層受力變形基礎上,提出了(即鋼板+金屬鋅塗層+封閉層+粘接劑+預拌瀝青碎石+雙層sma )的高性能鋼橋面sma鋪裝體系,並對這種sma的組成材料,包括改性瀝青、集料、礦粉、纖維進行了比較研究,設計了這種sma的配合比,對sma混合料的性能進行了對比試驗,對這種sma方案進行了疲勞性能研究,驗證了所選擇sma方案的可行性。We can say that it can develop the usage of soil nailing wall fill the rank of piles disadvantage a bright future of developing and using. the development, application, advantage and disadvantage about the " prestress anchor ribbed beam support system " is introduced in chapter 1 : it " s supporting mechanism and structural feature is introduced and compared with the soil nailing walls and un - embedded rank of piles in chapter 2 ; design and computer steps and more details about the design methods of the support system are introduced in chapter 3 ; the two important parts named draperies and anchors are introduced on their construction technology in chapter 4 ; three foundation trenches " instances with different depth in different soil are showed in the last chapter 5
本文在第一章概論部分介紹了「預應力錨桿肋梁支護結構」的發展、應用和優缺點;第二章分析其支護機理、結構特點,並與土釘墻和無嵌入排樁多錨支護進行了結構受力對比分析;第三章介紹該支護結構的設計計算方法步驟,詳細介紹了支護結構各部分的設計方法;第四章介紹預應力錨桿肋梁支護系統最重要的兩個部分:帷幕和錨桿的施工技術;第五章介紹了不同土層不同深度的有代表性的三個基坑工程實例。It is determined that with accurate knowledge of the complete stress - strain curve of concrete in compression, steel in tension, and with an iterative computerized non ? linear method, it is possible to predict the entire moment - curvature, moment - flexural rigidity and axial rigidity relation ship of a cross - section of a structure member
可以確定,只要知道混凝土受壓和鋼筋受拉的完整的應力應變關系,採用選代的非線性計算方法,就有可能預測結構截面彎矩一曲率、彎矩一彎曲剛度和軸向剛度的關系。The main work of this paper was as fellows : ( 1 ) generalized the development of pre - stressed steel structure in our nation and abroad, and pointed out the main problem in practice ; ( 2 ) presented the mechanism of pre - stressed steel structure and revealed its applicable range ; ( 3 ) established the optimization design model for pre - stressed steel structure, which accounts for constraints on stresses and displacements of structure ; ( 4 ) brought forward the optimization design method, which combined linear programming and the principle of full restriction, through which we can obtain the magnitude of each time pre - stress and the optimized sections of each members of structure ; ( 5 ) analyzed the best times of pre - stress and pointed out that 2 ~ 3 times is preferable ; ( 6 ) conducted optimization design on large - space steel roof, horizontal parallel steel truss with local cables, horizontal parallel steel truss with global cable, and ultra - static steel truss, the result of which indicated that the multiple pre - stress structure is very economic ; ( 7 ) compared different schemes of cable placement for horizontal parallel steel truss, and the results showed that the local cable only unloaded the second girders, but had no response on the first girders and stomach poles, while global cable could unload the second girders and the stomach poles outside of turning point of cable, thus proving that global cable is more economic than local - cable
本文的主要工作是:對國內外預應力鋼結構的發展歷史及現狀作了綜述和總結,指出當前預應力鋼結構工程實踐中存在的主要問題;闡述了預應力鋼結構的受力機理,並指出預應力鋼結構的適用范圍和特點;在考慮結構應力和變位約束的條件下,建立預應力鋼結構優化設計模型;提出多次預應力鋼結構優化設計方法和步驟,採用線性規劃和滿約束準則相結合的優化方法,可優化設計出施加的每一級預應力的大小,並得到結構各部分的優化截面;對多次預應力最佳的施加次數作了分析,並建議以2 3次為宜;為驗證文中理論和方法,分別對大跨多次預應力鋼屋架、局部布索的水平平行弦鋼桁架、整體布索的水平平行弦鋼桁架和局部布索的超靜定鋼桁架等算例進行了優化設計,經濟效益明顯;對水平平行弦鋼桁架的幾種施加預應力的方案進行比較,對于局部布索,預應力只對下弦起到卸載作用,對上弦和腹桿基本不起作用;而整體布索預應力除對下弦卸載外,對索折點以外部分腹桿也起到卸載作用,經濟效益好於局部布索。At last, it discusses the method of designing the spandrel beams properly, including the reduction of spandrel - beam - torque and the flexural strength ratio between columns and beams. results from the tests show that the effect of secondary torque, especially the anti - symmetry, exists in the structure during the whole testing
試驗結果表明,預應力次扭矩對結構受力的影響,存在於整個受力階段,其對結構受力的反對稱效應是比較明確的,尤其對邊主梁的受扭影響。Stress response of the tower wall at the least favorable section of all of the single section on the cable tower anchor segments of the cable - stayed bridge was studied under the annular pre - stress with cable force and tensile force by comparing the experiment results of the full - scale model of segment with the results of the finite element simulation analysis according to the forced status of the cable tower under practical conditions
摘要通過索塔錨固區節段足尺模型試驗結果和有限元模擬分析比較,結合索塔受力的實際工況,對異型截面斜拉橋索塔錨固區節段最不利斷面在環向預應力與索力共同作用下塔壁的應力響應進行了研究。The paper presented a large annular cantilever beam string stadium roof structure using the theory of beam string structure. the stadium roof structure is a novel structure that is reasonable in bearing force by using the character of the tendon and beam fully. the struts in the structure avoided enduring big moment, moreover the pre - stress upper chord tendon and the annular beam work together to resist upward and downward load, as embody the structure ' s artifice and wonderful space mechanical property
本文利用張弦梁原理,給出了一種大型環狀懸臂型張弦梁挑蓬結構,該種體育場挑蓬結構新穎,充分利用了拉索和立體桁架受力的特點,使得結構受力更加合理,避免了柱子承受較大的彎矩,上弦索的預張力和圈樑使結構共同作用抵抗上下荷載,更體現了結構的巧妙和良好的空間受力性能。According to different transverse difference in temperature and lengthways difference in temperature, the paper gave the method of computing temperature effect including : 1 ) the stress ot1 caused by nonlinear difference in temperature. 2 ) the constrain stress o t2 in undetermined structures by equivalent difference in temperature. 3 ) the constrain stress ot3 caused in undetermined structures by even difference in temperature tm
針對具有不同性質的橫向溫差和縱向溫差,本文分別提出了預應力結構的溫度效應的計算方法,包括: 1 )非線性溫差引起的自約束應力_ ( t1 ) ; 2 )等效線性溫差引起的超靜定結構的約束太原理工大學碩士學位論文應力民3 )均勻溫差tw引起超靜定結構中的約束應力4 4 )均勻溫差tm引起梁的軸向變形受到柱的側向約束,與預應力筋的溫度變形之間的差異引起的預應力的變化。Through simulating model tests of shield tunnel passing through the yellew river in the diversion project from south to north china, a systematic analysis on the primary factors affecting joint stiffness, including arrangement of joint bolt, thickness of annular packing of bolt, behavior and thickness of cushion material between two tube plates, magnitude of prestressing force of joint bolt and different stressed states at tube plate joint etc., are performed. the study results may provide reference for tube plate design of shield tunnel
通過南水北調穿黃盾構隧道模擬模型試驗,對影響接頭剛度的主要因素即連接螺栓的布置、螺栓墊圈的厚度、管片與管片之間墊層材料的性能和厚度、連接螺栓的預緊力的大小及管片接頭不同的受力狀態進行了系統的分析,為盾構隧道管片設計提供了參考。Abstract : through simulating model tests of shield tunnel passing through the yellew river in the diversion project from south to north china, a systematic analysis on the primary factors affecting joint stiffness, including arrangement of joint bolt, thickness of annular packing of bolt, behavior and thickness of cushion material between two tube plates, magnitude of prestressing force of joint bolt and different stressed states at tube plate joint etc., are performed. the study results may provide reference for tube plate design of shield tunnel
文摘:通過南水北調穿黃盾構隧道模擬模型試驗,對影響接頭剛度的主要因素即連接螺栓的布置、螺栓墊圈的厚度、管片與管片之間墊層材料的性能和厚度、連接螺栓的預緊力的大小及管片接頭不同的受力狀態進行了系統的分析,為盾構隧道管片設計提供了參考。These results demonstrate that the effect of improving the bearing load of structure is very good by strengthening the member of eccentricity compression under pre - stress. the ultimate bearing capacity of strengthened column is closely related to the eccentricity distance. in the condition of eliminating the lagging strain of angle iron, the magnitude of pre - stress putting on the angle iron has litter impact on the ultimate bearing capacity of structure
偏心受力構件的有限元計算結果表明:預應力法加固偏心受力構件,其對結構承載力的提高效果顯著;加固柱的最大承載力與柱的偏心距有密切關系;在消除角鋼應變滯后的條件下,對角鋼施加預應力的大小對結構最終承載力無明顯影響。For the sake of grasping completely the performance of component under eccentricity compression by prestressed strengthening method, the eccentricity loading components under the different value of prestressed forces and the change of eccentricity distance were designed in details on basis of the bearing properties of it
依據偏心軸壓構件的受力特點,為了完全掌握預應力法加固偏心受壓構件的性能,本文對偏心受力構件進行了詳細設計,如預應力的取值變化、偏心距的變化等。To ensure the integrity of the girder and resist transverse bending due to dead load and service load, powerful transverse prestressing tendons were disposed in the diaphragms
為加強主梁受力的整體性,抵抗靜載和動載產生的橫向彎矩,橫梁結構內設置了橫向預應力鋼束。This paper studied the warp and stiffness of end - plate connection, and studied how the actual stiffness of end - plate connection influence stiff frame ' s displacement, and some design improvements are proposed. a methodology based on finite element modeling is used to establish strong bolted end - plate connection calculation model, and solved the interface between end - plates question and how to add bolt pretension when imitating end - plate connection ' s elastic material characteristic. through analyzing and comparing calculation results and experiment data, this paper summarized bolt force distribution, connection moment resistance, moment - rotation relationship and connection stiffness
筆者採用有限元方法,建立高強螺栓端板連接的計算模型,模擬了節點彈性階段的工作狀態,較好的解決了高強螺栓端板連接中的接觸面問題和螺栓預拉力的施加問題,通過對計算結果的分析以及與實驗數據的比較,總結出端板連接在彎矩作用下的螺栓拉力分佈規律、節點抗彎承載力及其影響因素,以及節點剛度特性及其對剛架性能的影響,同時,對端板連接受力變形性能也做了十分有益的分析,為輕鋼節點設計方法的改進提供了依據。分享友人