width-span ratio 中文意思是什麼
width-span ratio
解釋
寬跨比-
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。 -
The transverse stiffness limitation index ? the permissible ultimate width / span ratio b / l of the continuous steel truss girder of railway bridge is analyzed in accordance with the analytic theories of random vibration of train ? bridge time - variation system and the required derailment coefficients and comfort of drivers and passengers in train running through the bridge. the limitation index in question may be referred to in the design of the continuous steel truss girders of railway bridges
基於列車-橋梁時變系統隨機振動分析理論，按照橋上列車脫軌安全系數和司機、旅客舒適度的要求，對鐵路連續鋼桁梁橋橫向剛度限值-橋梁容許極限寬跨比b / l進行了分析，對鐵路連續鋼桁梁橋的設計具有一定的參考作用。 -
As is well known, the effective width depends on several factors, such as the cross - section width, the height of web, the spacing of span and so on. we can conclude that width / span ratio ( overhang width / span and central width / span ) is the governing factor of the effective width
影響箱形截面樑上翼緣有效寬度的因素很多，如上翼緣寬度、梁高、跨度以及結構體系等，通過大量計算表明寬跨比[翼緣部分寬度、箱室部分寬度與跨度的比值]是有效寬度的控制影響因素。 -
Specimens ’ cracking load under dead - load, fatigue failure characteristic, fatigue life, deflection of span - centre, fatigue flexural rigidity, maximal crack width, development of cracks and strain of concrete and steel bars have been investigated. the influence of fatigue cycle characteristic, ratio of reinforcement, kinds of aggregate and concrete compressive strength on the specimens ’ fatigue behavior has been also investigated
對試件的靜載下開裂荷載、疲勞破壞特徵、疲勞壽命、疲勞荷載作用下的跨中撓度、截面疲勞抗彎剛度、裂縫開展情況及最大裂縫寬度、鋼筋及混凝土在循環荷載作用下應變等內容進行了研究，分析了疲勞循環特徵值、縱筋配筋率、骨料種類、混凝土抗壓強度等因素對試件疲勞性能的影響。 -
The cfst x - type arches improve the lateral stability by sloping the arc ribs so it is ofen used in the designs of cfst arch bridge with small ratio of the width to the span
鋼管混凝土x型肋拱橋是一種利用拱肋側傾來提高其橫向整體穩定性的橋型，在寬跨比較小的鋼管混凝土拱橋設計中應用較多。 -
The cfst x - type arches improve the lateral stability by sloping the arc ribs, so it is ofen used in the designs of cfst arch bridge with small ratio of the width to the span. tongwamen bridge is a half - through cfst arch bridge, its span is 238m, and the width of its roadway is 10m, so the truss ribs in - plane is sloped into x - shapc to improve its lateral stability. as the cfst x - type arches with longest span all over the country presently, the design of tongwamen bridge can be used for reference of adopting cfst x - type arches in the design of arch bridges with small ratio of the width to the span
鋼管混凝土x型肋拱橋是一種利用拱肋側傾來提高其橫向整體穩定性的橋型，在寬跨比較小的鋼管混凝土拱橋設計中應用較多。浙江銅瓦門大橋是一座中承式鋼管混凝土無鉸拱橋，跨徑238m ，橋寬10m ，拱肋為平面桁架形式，所以採用了x型拱肋以提高其橫向穩定性。作為國內目前跨徑最大的鋼管混凝土提籃拱橋，該橋的建成對我國今後長大跨徑小寬跨比鋼管混凝土拱橋採用提籃拱具有借鑒意義。 -
Structural internal forces and deformation caused by seismic load are bigger than that caused by automotive load. seismic load controls the designing of large span and small " width - to - span " ratio of large span cfst arch bridge. the seismic resistance is bigger than that with considering combination of various directions, so seismic load combination of various directions should been taken into account during design of large span cfst arch bridge
地震荷載所引起的內力和變形均大於車輛荷載引起的內力變形，對大跨、寬跨比小的鋼管混凝土拱橋來說，應以地震荷載控制內力和變形設計，考慮多方向地震荷載的組合后，所得的地震力更大，說明在計算地震力時，應該考慮多方向地震荷載的組合。 -
Yesanhe bridge is a half - through cfst arch bridges, the design of yesanhe bridge can be used for reference of adopting cfst x - type arches in the design of arch bridges with small ratio of the width to the span
野三河大橋是一座非對稱中承式鋼管混凝土無鉸拱橋，拱肋為平面桁架形式，所以採用了x型拱肋以提高其橫向穩定性。 -
At last, on the basis of the linear finite element model, the effect of different factors such as the stiffness of the arch rib, the arrangement form and the arrangement position of the lateral brace, the sloping angle of arch ribs, ratio of the width to the span, the form of the hangers, the stiffness of bridge decks, cables etc is discussed
最後，本文還通過有限元模型的分析，就拱肋自身剛度、橫撐的布置形式和布置位置、拱肋內傾角、寬跨比、吊桿形式、橋面剛度、斜拉索等方面對該橋的整體穩定性的影響展開討論和研究。
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