shear web 中文意思是什麼
shear web
解釋
抗剪腹板-
Thecalculating results show that the composite action between concrete floor and steel beamsgreatly influence the bending bearing capacity and initial rotational stiffness of joints, it shouldbe considered in practical engineer. reinforcement ratio of lengthways reinforcing bar andthe stiffener of web have great influencer on the behavior of connections, while the thicknessof end - plate and degree of shear connection have a litter influence on its behavior
分析計算結果表明:樓板與鋼梁的組合作用對節點的抗彎承載力及初始轉動剛度的影響非常大，實際工程中節點設計應當考慮這種組合作用;樓板內縱向鋼筋配筋率與柱腹板加勁肋對節點性能影響顯著，而連接端板厚度及剪力連接程度的影響則不是太顯著。 -
Modeling the general solid web continuous box girder and opening - in - web ( open web ) continuous box girder by ansys finite element modeling tool, node stress of governing section and corresponding shear lag values are analyzed. the solution is validated by comparing with variational results and modeling test values. based on the model, the section shear lag induced by dead load, prestress tendons and car loads under the most unfavorable condition and lateral symmetry are also approached. the influence of shear lag effect in double - level continuous box girder is considered with opening - in - web and the web location. the analysis indicates that double - level - load arouses less shear lag effect than one - level - load. when self - weight and prestressed tendons act on together, the shear lag effect on box girder take on a evidently change
基於所建立的有限元模型，本文分別對實腹和腹板開孔兩種箱梁在恆載、車載、預應力荷載作用時，各主要截面的剪力滯效應進行分析，通過施加縱向最不利的和橫向對稱的車輛荷載，研究實腹連續箱梁和空腹連續箱梁在承受雙層荷載和單層荷載時引起的剪力滯效應，並考慮腹板開孔及開孔位置對于連續箱梁剪力滯效應的影響。分析表明，雙層車載對于箱梁引起的剪力滯系數比單層車載的影響要小，對于箱梁中存在引起的剪力滯后現象有一定的改善作用。 -
Based on the research of influenced parameters on constant and varying depth solid web box girder before, the shear lag aroused by the parameters including width - span ratio, outstanding flange on base slab and the position of the tendons are further studied. the investigation show that shear lag values diminish along with the decease of width - span ratio and the departure from the symmetrical axis of anchor position, but outstanding flange is contrary to the former
在前人對等截面、變截面實腹箱梁剪力滯效應影響參數研究的基礎上，本文進一步對腹板開孔的連續箱梁的寬跨比、底板翼緣伸出以及預應力錨固位置改變等參數對箱梁剪力滯的影響進行研究。 -
In this paper, five restrained beams with web and different longitudinal reinforcement were tested under static point loads, with the shear - span ratio being kept around 1. 5. on this basis, the overall process of cracking development under shear and the effect of longitudinal reinforcement ratio on it was investigated
本文通過集中荷載作用下五根剪跨比為1 . 5 、不同縱筋率的有腹筋約束梁的試驗，深入研究了有腹筋約束梁的受剪破壞全過程及縱筋率對其的影響。 -
Steel fiber reduces the size effect of shear resistance of reinforced concrete beams without web reinfocements. the size effect formula is proposed in this paper, it is better agreement with test data. 5
鋼纖維對鋼筋混凝土無腹筋梁斜截面承載力「尺寸效應」具有降低作用，本文提出了與現行規范相銜接的鋼筋鋼纖維混凝土腹筋梁斜截面承載力「尺寸效應」計算公式，與現有的試驗資料符合良好。 -
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。 -
This variation of stresses is due to the action of in - plane shear strain in the plate, which is termed “ shear - lag ”. stresses larger than the elementary bending uniform stress thus develop at the web - flange connection. an appropriate reduced “ effective width ” of the plate - with the uniform stress equal to the maximum longitudinal stress - has been widely used by engineers in conjunction with the elementary beam bending theory
但實際上翼緣中剪切變形是不均勻的，由此導致正應力沿橋寬呈曲線分佈，從而引出了有效寬度的概念，即按初等梁理論的公式也能得與真實應力峰值接近相等的那個翼緣折算寬度。 -
Abstract : based on the systematic analysis of the shear behavior for r. c. beams, the tests of 11 simple supported beams under the top concentrated loads and the uniform loads are supplemented. the prime variable is shear span ratio, span depth ratio, horizontal web reinforcement ratio and vertical web reinforcement ratio. according to the test results, the working behavior, the prime shear failure modes, the effect of concrete and web reinforcement ( horizontal web reinforcement and vertical web reinforcement ) and other aspects of r. c. beams are analysed. the uniform calculation method for shear capacity of deep beams, short beams and shallow beams for practical is presented
文摘:在對國內外鋼筋混凝土梁的受剪性能進行較系統分析的基礎上，補充了11根鋼筋混凝土簡支短梁在頂部集中荷載和均布荷載作用下的試驗，試驗梁的主要變化參數為剪跨比、跨高比、水平腹筋率和垂直腹筋率.根據試驗結果，對試驗梁的工作性能、主要的剪切破壞形態、混凝土項的抗剪作用、抗剪腹筋（包括水平腹筋、垂直腹筋）的作用等進行了較為深入的分析，提出了可適用鋼筋混凝土深梁、短梁和淺梁相互協調的受剪承載力的統一計算方法 -
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 -
A simplified formula for the shear capacity of rc simply supported beam which strengthened with the cmmr is proposed in this paper. 3 、 the shear capacity of rc beam strengthened with cmmr is studied. though the test of fourteen simply supported reinforced concrete beams and five overhanging reinforced concrete beams with cmmr, it analyses the effects of shear - span ratio, web reinforcement ratio of cmmr, style of loading, preloading on strengthening, and compares them with rc beams using ordinary stirrup
3 、根據本文進行了的14根混凝土簡支梁和5根混凝土伸臂梁的水泥復合砂漿鋼筋網抗剪加固試驗，分析了剪跨比、鋼筋網配筋率、加固形式以及持荷狀態等因數對整個構件極限抗剪承載力的影響，並與混凝土梁進行了比較。 -
Local buckling capacity of steel composite beam subjected to combined bending, shear and patch loading is one of key problem in steel structures design. the computational formula for local stability of web was based on the assumption of infinite - elastic perfect plates in the steel structures design code ( gbj17 - 88 ). but in the revised code ( gb50017 - 2003 ), this formula was made big change with reference to british code ( bs5950, partl ) and australian code ( as4100 ), the related research result of our country was included as well. in the modified formula, influence of early geometric imperfection and elastic - plastic buckling stage were considered, which is compatible with both actual circumstance of engineering and the strength formula of beams under bending stresses ( considering partial plasticity of the section ). in this paper, the preceding problem is deeply analyzed and studied, considering the effects of various geometric parameters and stress combinations on buckling critical stress of web, the revised local buckling correlative formula for transverse and longituded stiffened web panels under combined stresses is analyzed and verified by finite element method
組合鋼梁腹板在彎、剪及局壓復合應力作用下的局部屈曲承載能力是鋼結構設計中需考慮的問題，新的《鋼結構設計規范》 （ gb50017 ? 2003 ）對此部分內容作了較大改動，原規范中關于腹板局部穩定的計算公式是基於無限彈性的完善板假定；新的規范則參考了英國規范（ bs5950 part1 ）及澳大利亞規范（ as4100 ）並結合我國相關研究成果，考慮了屈曲進入彈塑性階段以及初始幾何缺陷的影響。這不僅與工程實際情況相符，而且也與鋼梁在彎曲應力作用下允許截面部分進入塑性的計算公式相協調。 -
Based on shear transfer mechanism and carrying capacity of the cracking surface of rc members, the shear strength expression of the corroded rc structural elements without web reinforcement is obtained originally
對于銹蝕無腹筋梁，從開裂面的受力狀態出發，根據開裂面的抗剪機制，分析了銹蝕無腹筋梁的抗剪強度。 -
The shear strength of the no corroded rc beams with stirrups is divided by two parts, that is the strength provided by the stirrups and the beams without web reinforcement. on the basis of this shearing mechanism of rc structural elements with web reinforcement, considering the confining effects of the stirrups, the shear carrying capacity expression of the corroded rc structural elements is given. the present results are compared with corresponding references and some reasonable conclusions are drawn
對于銹蝕有腹筋梁的抗剪承載力問題，基於未銹蝕有腹筋梁抗剪強度公式建立的原理，即未銹蝕有腹筋梁的抗剪強度為相應未銹蝕無腹筋梁的抗剪強度和箍筋對梁抗剪強度貢獻兩部分的疊加，考慮箍筋的約束作用對斜截面抗剪強度的貢獻，建立了有腹筋構件斜截面抗剪承載力的計算表達式，且與相關文獻的結果進行了比較。 -
An equation to calculate ultimate shear - resistant capacity of src column and steel beam joint is discussed, with consideration of the actions of concrete, steel web and horizontal hoop. the effects of axial press and steel wing under loads are also discussed
探討考慮混凝土、型鋼腹板、箍筋共同貢獻的勁性柱?鋼梁節點極限抗剪承載力計算公式，並就軸壓力、翼緣在節點受力過程中的作用進行了分析與評價。 -
This paper mainly introduces technologies of bending carbon fiber reinforced plastic ( cfrp ) plates or fabrics to the web of reinforced concrete members, and also this paper discusses the design principles of carbon fiber reinforced plastic ( cfrp ) used in the reinforced concrete members, as well as considering the preload effect to the bending capacity of the reinforced concrete members. finally, a kind of new practical method is put forward, and may be a reference for practical engineering designer. in the meantime, this paper analyzes the " local failure " caused by shear and normal stress concentrations at the plate ends that can easily incorporated into design equations. furthermore, the bonding and anchoring conformation of concrete members strengthened by carbon fiber reinforced plastics also be set forth
本文重點研究碳纖維製成織物片材粘貼到混凝土表面用於結構的補強與加固的技術特點，從理論上探討cfrp加固混凝土結構的設計原理，分析二次受力對加固結構的彎矩承載力的影響；同時對外貼碳纖維加固混凝土的抗彎和抗剪提供一種簡單、實用的設計方法，供工程設計人員參考，對碳纖維布加固混凝土梁中出現剝離破壞也進行了分析，提供了最大剝離正應力的計算公式，以及對外貼cfrp加固結構構件的粘貼構造與錨固進行了闡述。 -
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。
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