梁析截面 的英文怎麼說
中文拼音 [liángxījiémiàn]
梁析截面
英文
girder section-
Based on basic principles of grillage method, an improved grillage model of wide cantilevers bridge deck is brought forth and its effectiveness is verified after generalizing rules of grillage meshing and sectional characteristic
基於梁格法的基本原理,提出了寬翼緣上部結構分析的改進梁格模型,並總結了梁格單元劃分和截面特性計算的一般方法,最後通過算例驗證了該模型和方法的有效性。It is the key of ebfs, therefore, furthermore calculation about link are carried out in this thesis, introduced achieved research, summarized the affect of link on whole capability in the first, the second, numerical calculation are proceeded on link with ansys : with the purpose of discussing yielding mode critical length of link, established five different specimens ; with the purpose of discussing the influence of h / tw of web, b / tf of flange and h / b, established eighteen different specimens ; with the purpose of discussing the affect of stiffener, established four different specimens, and elaborated the affect of stiffener on link based on achieved test researches
因此,本文對耗能梁段進行進一步計算分析,概述耗能梁段對整體性能的影響,並利用有限元程序ansys對耗能梁段進行數值計算:針對耗能梁段的屈服類型建立5種不同長度的模型,計算討論耗能梁段屈服類型的長度劃分;針對耗能梁段腹板高厚比、翼緣寬厚比以及梁段截面形狀等因素共建立了18種模型進行計算分析;針對加勁肋對耗能梁段的作用建立了4種模型,並結合已有的試驗闡述了加勁肋對耗能梁段的影響。The paper studied tests on three epiboly profiled bar concrete beams, bearing capacity of normal section, stiffness and behavior of cracks, and put forward formulas as advise. based on extant nonlinear concrete theory, a fem model was built by ansys program. the results of fem analysis was verified by tests data. some parameters in fem model were changed to build different models and the analysis results were compared with the advised formulas
本文通過三根外包型鋼混凝土梁試驗,研究了其正截面承載能力、剛度以及裂縫方面的性質,並提出了一些相關建議公式。同時在現有混凝土非線性分析理論的基礎上,採用ansys有限元分析程序建立了外包型鋼混凝土梁的有限元模型,結合試驗數據對模型進行了驗證,另外還改變了一些參數建立了有限元模型,並和建議公式的結果進行了對比。Based on the numerical simulation and accuracy analysis to previous slab ' s test with the ansys program, the study of composite wall, with various detail design under potential load action respectively or jointly is carried on and the wall ' s atress behavior and failure mode is obtained, also the influence to wall ' s stiffness and bearing capacity by kinds of factors, including wall ' s shear span ratio, member ' s section, bar arrangement, etc. based on the hammer blow test and stiffness test, a 1 / 3 scale ten - bay model ' s modality parameter and elastic deformation characteristic is analyzed
在對密肋復合墻板運用ansys ~ ( ( ? ) )程序進行數值模擬、分析驗證的基礎上,對典型組合墻體在不同連接構造和不同荷載效應組合作用下的受力形態和破壞模式進行研究;計算分析了復合墻體剪跨比、邊框柱截面尺寸、邊框柱配筋大小以及墻板內肋梁肋柱配筋等諸多因素對密肋復合墻體承載力及剛度的影響,得出其變化規律。2 ) the structure elements should be laid out symmetrically and uniformly when designing steeve - arch structure, what ' s more, the reasonable selection of section geometric size near the arch foots of first beams is paid attention to and the arrangement difficulties of steel bar due to the big eccentric pressures 2, the analyses of anti - seismic features on transverse direction of the aqueduct l ) the method of adjusting the elements " mass can be harnessed in order to even the layout of seismic loads
2 )設計吊桿式拱架支承結構時,各部分構件應當均勻對稱布置。另外,還應注意頭道梁拱腳附近截面的尺寸擬定,克服地震內力造成的大偏心受壓狀態給結構配筋設計增加的困難。 2 、橫槽向抗震性能分析1 )可利用調整構件質量的方法,使得結構的某些構件的地震荷載分佈均勻一些。The work in this thesis mainly includes following parts : 1. as for box girder cross section, the three - bar stimulation method under typical loads and supports has been introduced. the force and stress formulae for flanges have been derived from the three - bar method. by reasonable simplification for multi - cell box girder, the three - bar method has been applied in multi - cell box girder ' s shear lag analysis
對于箱形截面主梁,本文介紹了三桿比擬法上、下翼板中比擬桿的計算公式,以及在典型荷載和支承的情況下翼板內各桿的應力計算公式,並對多箱式主梁截面進行合理簡化,使三桿比擬法應用於多室箱梁的剪力滯分析。According to the load behavior and defection degrees of existed reinforced concrete bridge, the calculating modeles for normal section strength and bearing capacity for reinforced concrete bridge are established by the elasticity analysis and nonlinear analysis of grade stiffness degeneration
根據既有鋼筋混凝土橋梁的受力特點和損傷程度,採用兩種方法:即《規范》法分析理論和分級剛度退化非線性分析理論,分別建立了既有鋼筋混凝土橋梁正截面強度計算和承載能力評定的計算分析模型。2. considered the material intensity, girder area, panel thickness and loads as stochastic variables, taylor expansion sfem is adopted to analyze the influence of stochastic variables to the nodal displacement, and the different effects of the different variables to the same nodal displacement are compared. 3
以船舶結構中的材料的強度、梁元截面積、板元厚度和外載荷為隨機變量,採用taylor展開的隨機有限元,分析了隨機變量對船舶結構的節點位移的定量的影響,同時還比較了不同的隨機變量對同一節點位移的不同影響。On the foundation of analysis a quantity of experiments and theory home and abroad, the paper give a calculation formula for the cross - section anti - bending limit load capacity of reinforced concrete beam. at the same time, the paper discusses the establishment of fatigue load chart for the bridge structure and presents its calculation of stress chart
2 、在分析國內外大量試驗研究和理論分析的基礎上,給出了碳纖維布加固鋼筋混凝土梁正截面抗彎極限承載力的計算公式,詳細闡述了等幅疲勞荷載和變幅疲勞荷載下橋梁結構疲勞強度的計算方法。Regarding the rc beams subjected to concentrated load or even load and braced by bonding steel, an analysis is made on the relevant factors influencing maximum anchorage shear stress of steel sheet. the analysis is based on elastic theory and makes use of the formula for calculating anchorage shear stress of steel sheet. as indicated by the results, the maximum anchorage shear stress not only realtes to such parameters as height of cross section of rc beam and span but also relates to the thickness of adhesive layer, elastic modulus, thickness of steel sheet, and length of steel sheet. the present method will check maximum an chorage shear stress on the end of shear sheet so as to prevent rc beam from local damage. the present results will offer important reference for our country to further perfect bracing design by bonding steel method
在彈性理論的基礎上,利用鋼板錨固剪應力計算公式,對在集中荷載或均布荷載作用下採用粘鋼加固的混凝土梁,分析鋼板錨固最大剪應力的有關影響因數.結果表明,最大錨固剪應力不但和混凝土梁的截面高度、跨度等參數有關,還和粘膠層厚度、彈性模量、鋼板厚度及鋼板長度有關.採用文中方法可以對鋼板端部最大錨固剪應力進行驗算,防止混凝土梁出現局部受拉破壞.研究結果為進一步完善我國粘鋼法加固設計提供重要的參考資料For example, frp reinforced concrete is used to support or surround magnetic resonance imaging ( mri ) medical equipment, and frp is also used for the constructions of some seawalls, industrial roof decks, base pads for electrical and reactor equipment, anchor in rock and ground engineering and concrete floor slabs in aggressive chemical environments in order to promote the wide usage of frp and frp reinforced concrete structures, financed cooperatively by nationa l natural science foundation ( item : the research on mechanical performance of frp reinforced concrete beam reinforced ; number : 59978046 ) and henan illustrious youth science foundation, connected with the analysis methods of modern steel reinforced concrete structure, the thesis further studies the flexural performance of frp reinforced concrete beam through the systematic study on experimental data got from this kind of beams, systematically establishes the theoretical calculating system of the flexural performance of frp reinforced concrete beam in cooperation with the up - to - date analytical methods for reinforced concrete, which suits the properties of frp
例如,纖維增強塑料筋應用於支撐和圍繞磁共振成像醫療設備的混凝土中及海堤、工業頂棚、電設備、反應設備的基座、巖土工程中的錨桿、侵蝕性環境的混凝土結構等海洋工程、橋梁工程、路面工程、巖土工程、醫療及化工工程的建設。為了推動纖維增強塑料筋及其混凝土結構在工程中的廣泛應用,本文在國家自然科學基金(項目名稱:纖維增強塑料筋混凝土梁力學性能的研究;編號: 59978046 )和河南省傑出青年基金的資助下,通過對纖維增強塑料筋混凝土梁正截面受彎性能試驗數據的系統分析,結合現代鋼筋混凝土結構學的分析方法,對纖維增強塑料筋混凝土梁正截面受彎性能進行了深入的研究,較系統的建立了適合於纖維增強塑料筋特點的纖維增強塑料筋混凝土梁正截面受彎性能的理論計算體系。The main achievements of this thesis are as follows : l. the effect of the frp reinforcement ratio on cracking moment is analyzed. the calculating method and corresponding calculating formulas of flexural cracking moment of frp reinforced concrete beam are put forward
分析了纖維增強塑料筋配筋率對纖維增強塑料筋混凝土梁正截面開裂彎矩的影響,提出了纖維增強塑料筋混凝土梁正截面抗裂度的計算方法和相應的計算公式。The research works and conclusions of this paper as following : 1. besed on the test results published over the word of reinforced concrete beams without web reinforcements and with stirrups, the systematically statistical analysis is carried out to set up the fomula of shear resistance of reinforced concrete beams using the uniaxial tensile strength of concrete. it provided the basis of strtistical analysis for shear resistance of steel fiber reinforced concrete beams
根據收集到的國內外對鋼筋混凝土無腹筋梁和鋼筋混凝土有腹筋梁的斜截面承載力試驗研究成果,進行了比較系統的綜合統計分析,提出了採用混凝土軸心抗拉強度研究成果,進行了比較系統的綜合統計分析,提出了採用混凝土軸心抗拉強度指標的鋼筋混凝土梁斜截面承載力計算公式,為鋼筋鋼纖維混凝土梁受剪承載力試驗結果的統計分析提供了基礎。Analysis of shear failure characteristic of non - web bar circular reinforced concrete beam
圓形截面無腹筋梁斜截面破壞形態分析In order to accelerate the development of preflex composite beam in railway bridges and to design and construct preflex composite beam bridges of railway in our country reasonably, this thesis is from the scientific project of railway department " experiment and application research of railway preflex composite beam " and summarizes the design information and practical projects on preflex composite beam. on the basis of above works, this thesis improves computation method in analysis of railway preflex composite beam on sectional stress, deflection of mid - span, crack width and shearing resistance and programs a software " preflex composite beam bridge structure analysis system - pfsas ", which is adapt to railway bridges in our country. moreover it makes a primary research in construction techniques and structure measures
為了迅速促進預彎組合梁在我國鐵路橋梁中的發展,合理地進行我國鐵路預彎組合梁橋的設計和施工,本文結合鐵道部科技研究開發項目「鐵路預彎組合梁的實驗與應用研究」 ,在總結以往對預彎組合梁力學性能研究成果及實際工程的基礎上,完善了鐵路預彎組合梁的截面應力、跨中撓度、裂縫寬度和抗剪分析的計算方法;編制了適用於我國鐵路橋梁的「預彎組合梁橋結構分析系統? ? pfsas 」軟體;並對預彎組合梁的施工工藝及構造措施進行了初步探索。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。On the basis of detailed comparison and analysis, the paper proposed ways of using the k2 bogie and hdsa light - duty solid wheel, getting through the partition wall, canceling the longitudinal sill of the roof and decreasing the thickness of the board where the value of stress is low, using high intensity steel, increasing section dimensions of center sill and side sill, to improve the whole carrying capacity
本文在比較分析的基礎上,提出了裝轉k2轉向架,採用hdsa輕型碾鋼輪,打通隔墻,取消車頂縱向梁,在應力小的部位減薄壁厚的減重對策;採用高強度耐候鋼,加大中梁、側梁的截面尺寸等措施,提高車輛的承載能力。Based on the test data of hundreds of pre - stressed concrete beams, this paper studies the factors that influence the ultimate shear strength of those beams. and those factors have been analyzed by correlation analysis of grey system theory. the analysis result shows that which is the first factor influences the ultimate shear strength and which one is the next
本文根據國內外預應力混凝土梁斜截面抗剪承載力試驗資料,分析了影響預應力混凝土梁斜截面抗剪承載力的主要因素,並對這些因素進行灰色關聯分析,得出各因子對預應力混凝土梁斜截面抗剪承載力影響程度的大小排序。The results obtained could be referred in further study of computational theory of composite members, rational design of composite beams, and other similar numerical simulation
所獲分析結果對于促進疊合梁斜截面理論的深入研究、指導疊合梁在工程中的合理設計以及類似的數值模擬分析均有一定的參考價值。2. based on the test results published over the word of steel fiber reinforced concrete beams without web reinforcements and with stirrups, the effects of steel fiber to shear resistance and the relationship of steel fiber to stirrups are analyzed, the improvements of steel fiber to failure states of reinforced concrete beams without web reinforcements are discussed. it is proposed that the formula of shear resistance of steel fiber reinforced concrete beams based on the model of the current design and construction spectification of steel fiber reinforced concrete structures ( cecs38 : 92 ), used of the uniaxial tensile strength of steel fiber reinforced concrete, and combined with different formulas specified in current design codes of concrete structures issued by different trades
根據收集到的國內外對鋼筋鋼纖維混凝土無腹筋梁和鋼筋鋼纖維混凝土有腹筋梁的斜截面受力性能試驗研究成果,對鋼纖維在增強鋼筋混凝土無腹筋梁和有腹筋梁斜截面承載力方面的作用及其在箍筋抗剪承載力的關系進行了總結分析,對鋼纖維改善鋼筋混凝土梁破壞形態方面的作用進行了分析討論,提出了採用鋼纖維混凝土軸心抗拉強度指標,基於現行cecs38 : 92 《鋼纖維混凝土結構設計與施工規程》計算模式、能夠與目前國內各行業現行混凝土結構設計規范中不同的鋼筋混凝土梁受剪承載力設計方法配套使用的鋼筋鋼纖維混凝土梁受剪承載力設計方法。分享友人