span loading 中文意思是什麼
span loading
解釋
【航空】翼展載荷。-
In the design, the construction measures such as application of shrinkage - compensating concrete, arrangement of spacing layer between the foundation rock and the bottom slab, adding outside waterproof layer, flexible connection between outlet pipe with side - wall, integerated concrete placement of pump seat with bottom slab and design of reinforcement with application of advanced calculation theory are used according to the characteristics of lager span, larger volume and complex loading conditions of the understructure
針對下部結構跨度大、體積大、受力復雜的特點，在設計中採取多種措施，包括採用補償收縮混凝土、基巖與底板間設隔離層、增設外防水層、出水管與邊墻採用柔性連接、機座與底板整體澆注、採用先進計算理論指導配筋。 -
Creep analysis methods of high - rise buildings and large span buildings can only refer to creep coefficient method in bridge engineering or the method of degree of creep in hydraulic construction engineering under the present experiment conditions. in this paper, the incremental expressions of concrete creep and shrinkage strain when the initial computational age is not the same as the loading age are derived and corrected from the concept of concrete creep coefficient and the mean value theorem of integral and the principle of superposition. the differences of efficiency and accuracy of creep analysis between the finite element method with creep coefficient and the initial stress method with degree of creep are presented. this paper suggests that engineers should use the initial stress method with degree of creep to estimate the influences of creep on high - rise buildings and large span buildings on the basis of conceptual design
基於現有的試驗資料，高層及大跨度民用建築的徐變分析只能參照橋梁結構中的徐變系數方法或水工結構中的徐變度方法進行.從徐變系數的定義出發，利用積分中值定理和疊加原理，推導並修正了加載齡期與起算齡期不同時徐變收縮應變增量的表達式，對比了應用徐變系數分析徐變的有限元法和應用徐變度分析徐變的初應變法在效率和精度上的差別，並建議應從概念設計的角度出發，採用徐變度的初應變法來估算徐變對高層及大跨度民用建築的影響 -
Abstract : creep analysis methods of high - rise buildings and large span buildings can only refer to creep coefficient method in bridge engineering or the method of degree of creep in hydraulic construction engineering under the present experiment conditions. in this paper, the incremental expressions of concrete creep and shrinkage strain when the initial computational age is not the same as the loading age are derived and corrected from the concept of concrete creep coefficient and the mean value theorem of integral and the principle of superposition. the differences of efficiency and accuracy of creep analysis between the finite element method with creep coefficient and the initial stress method with degree of creep are presented. this paper suggests that engineers should use the initial stress method with degree of creep to estimate the influences of creep on high - rise buildings and large span buildings on the basis of conceptual design
文摘:基於現有的試驗資料，高層及大跨度民用建築的徐變分析只能參照橋梁結構中的徐變系數方法或水工結構中的徐變度方法進行.從徐變系數的定義出發，利用積分中值定理和疊加原理，推導並修正了加載齡期與起算齡期不同時徐變收縮應變增量的表達式，對比了應用徐變系數分析徐變的有限元法和應用徐變度分析徐變的初應變法在效率和精度上的差別，並建議應從概念設計的角度出發，採用徐變度的初應變法來估算徐變對高層及大跨度民用建築的影響 -
It is designed a contrast experiment on two sets of two - span and two - story rc frames under low cycle reversed loading, one frame has construction joints while the other has not
摘要對一組留置施工縫，一組未留置施工縫的兩組單榀兩層兩跨框架結構進行了低周反復荷載作用下的試驗研究，對兩組框架的滯回性能、延性、剛度退化等性能作了深入的分析。 -
The influences of different reinforcement style of the concealed bracings and different span - height ratio of lintel beams on bearing capacity, stiffness and deterioration process, ductility, hysteresity capacity, energy dissipation and failure features of coupled shear wall were studied through experiment of 7 specimens under low cyclic loading
通過7個結構試件在低周反復荷載作用下的試驗，研究了不同暗支撐配筋形式、不同連梁跨高比對雙肢剪力墻的承載力、剛度及其衰減過程、延性、滯回特性、耗能、破壞特徵等方面的影響。 -
This dissertation generalizes the test on the full - scale reinforced concrete simply - supported slabs and three - span continuous slabs under fire at the normal loading condition. the conclusion can be drawn from the test about the deformation of the both kinds of slabs and the specimen section temperature distribution. meanwhile, the failure modes, mechanism and internal force redistribution of the continuous slabs are analyzed
本文對足尺鋼筋混凝土簡支板、三跨連續板進行了恆載下的受火試驗研究，通過試驗，給出了鋼筋混凝土簡支板和連續板在高溫下的變形、構件截面溫度分佈規律；分析了連續板的內力重分佈和破壞機構的特點。 -
The thesis is aimed at presenting a procedure to establish a baseline finite element model of the qingzhou cable - stayed bridge over the ming river, fuzhou, china that was newly constructed. its main span length of 605m is the longest in the world among the completed composite - deck cable - stayed bridge. the proposed procedure includes several tasks : initial finite element modeling base on the design drawings, field loading tests and ambient vibration tests, and finite element model calibration with the test results
本文以主跨605m的結合梁斜拉橋? ?青洲閩江大橋為背景，首先根據設計圖紙建立該橋完整的初始空間有限元模型，然後根據通車前現場靜力試驗和環境振動試驗結果對初始有限元模型進行校正，通過參數的調整使模型靜、動力計算結果與實測值吻合。 -
Stay cables of the long - span cable - stayed bridges are susceptible to vibration under wind loading, or wind incorporated rain excitation, or deck motion due to high flexibility, relatively small mass and very low inherent damping, such as vortex shedding, wake galloping, parameter resonance and wind - rain induced vibration. large - amplitude vibration of cables may reduce the life of cables and threaten safe traffic, and has been considered today as one of the most critical problems for this type of bridge
大跨度斜拉橋拉索具有較小的質量和極低的阻尼，在風、風雨及橋面振動等外部激勵下極易發生振動，如渦激共振、尾流馳振、參數共振和風雨振等，拉索的大幅振動對拉索的使用壽命和橋梁安全運營構成極大威脅，它已成為大跨度斜拉橋急需解決的關鍵問題之一。 -
According to these characteristics and equivalent static wind loading ( eswl ) theory of high - rise buildings and bridges, refined idea to study eswl of large span roofs is presented
針對上述特點，並借鑒高層、橋梁結構的等效靜風荷載理論，提出了大跨屋蓋結構等效靜風荷載研究的精細化思想。 -
With the increase of span - length and height, the wind effects on these more flexible structures have not been confined to static wind loading, and the dynamic wind effects due to various wind - induced vibrations must be considered
隨著結構跨度和高度的增大，風對這些柔性結構的作用就不限於靜力風荷載，而必須考慮各種風致振動問題，以及由此引起的動力風效應。 -
In this paper, by means of reversed cyclic loading tests on the specimens of long - span floor beams system, it analyzes the behavior of long - span floor beams system during the tests
本文通過兩榀大跨度預應力次梁樓蓋結構體系組合構件的反復水平加載試驗，分析研究了大跨度預應力次梁樓蓋結構體系的受力特性。 -
On the base of fatigue loading spectrum achievements, combining the characteristics of large - span grid structure with hanging cranes and the using - requirement on fatigue loading spectrum of grid structure with hanging cranes, this paper has firstly put forward the theoretic method for constructing fatigue loading spectrum of grid structure with hanging cranes, organized the relevant program - - gjfls. and elementally established the program loading spectrum
在繼承疲勞載荷譜已有成果的基礎上，本文結合網架設置懸掛吊車的特點以及網架疲勞載荷譜的使用要求，首次提出了網架疲勞載荷譜編制的理論方法，並編制了相應的程序（ gjfls ） ，初步建立了網架程序載荷譜。 -
Because of large span, the steel truss transfer member in a tall building will get a huge load effect with a vertical loading
帶大跨度鋼桁架轉換層結構的建築物，由於轉換層的跨度大，在豎向荷載作用下，將會產生較大的荷載效應。 -
5 results of an experimental investigation on shear behavior of l, t and + - shaped columns are presented. the effects of shear - span ratio, axial compression ratio, stirrup contents and loading direction on shear behaviors of l, t, and + - shaped columns are discussed. combining with test data of others, the formulas for shear strength of l and + - shaped columns are given
5對l 、 t 、十形柱受剪性能進行了低周反復荷載試驗研究，討論了剪跨比、軸壓比、配箍率、荷載作用方向對l 、 t 、十形柱承載力和延性的影響，並結合他人試驗結果，提出了l 、十形柱的偏下線受剪承載力公式。 -
A material nonlinear finite element analysis for the cast - in - place reinforced concrete hollow slab that occurs from initial loading, cracking, yielding to failing is carried on. the cracking load, ultimate load, the displacement rules and the principal stress distribution rules of the hollow slab under the vertical loads are obtained. a material nonlinear finite element analysis for the single span hollow flat - plate floor is also carried on
其次對空心板進行了從加荷、開裂、屈服直至破壞的全過程材料非線性有限元計算，得到了空心板在豎向荷載作用下的開裂荷載、極限荷載及位移和應力分佈規律；還對單跨無梁樓蓋進行了材料非線性有限元計算，通過分析主應力場明確了柱上暗扁梁的作用；有限元計算的結果驗證了以上的理論分析並得到了一些重要的結論，對改進現澆空心板無梁樓蓋的構造措施有重要的參考價值。 -
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。 -
Compounding stiffness is introduced for analyzing the characteristics of moment redistribution in the long - span floor beams structure subjected to lateral loading. it is shown from the testing result that the specimen can be analyzed by elastic theory before cracking. the development of cracking in the spandrel beams and the floor beams ( including floor ) causing the compounding stiffness and the bending stiffness of floor beams through the column to change distinctly, correspondingly moment - torque redistribution occurs
由於過柱子次梁、邊主梁的開裂以及樑上次梁（包括樓板）的開裂，使得過柱子次梁的抗彎剛度和邊主梁樑上次梁板組合剛度發生了明顯的變化，導致產生彎扭重分配，一般情況下，組合剛度與過柱子次梁抗彎剛度的比值增大，邊主梁所受扭矩增加，反之，邊主梁所受扭矩減小。 -
The study on varied - amplitude fatigue behavior of large - span grid structure with hanging cranes is a blank field in the world. on the base of extensive investigation, from the viewpoint of loading, this paper widely discusses the development of fatigue loading spectrum in the fields of aviation, mechanism and civil engineering, listing the main technology standards of hanging crane and the engineering examples of partial grid structure with hanging crane in china, concluding the mechanic methods on tension - resistance fatigue design of bolt in china. america
設置懸掛吊車網架的變幅疲勞性能研究屬于當前的一個前沿課題，本文從載荷的角度，通過廣泛的調查和深入的研究，全面地論述了疲勞載荷譜在機械、航空、土木領域的進展情況，列出了國內部分已建或在建的設置懸掛吊車網架結構的工程實例和懸掛吊車主要的技術規格，詳細歸納了中國、美國、德國、日本、前蘇聯的螺栓抗拉疲勞設計理論以及美國、德國鋼結構協會關于高強螺栓抗拉疲勞設計的若干規定。 -
Firstly, the analyses on the dynamical response of the tsing ma bridge ( tmb ) under traffic loading are performed on the basis of the three dimensional finite element model of the full - scale structure of the bridge, and some regions critical to fatigue damage are determined from the result of the dynamical response. the hot spot stress approach is usually adopted in the fatigue design and analysis of tubular welded joints. to apply the hot spot stress approach for the fatigue evaluation of long - span suspension bridges, the fem is further used to determine the hot spot stress of the critical fatigue locations
首先，在青馬大橋三維有限元模型和整體動力響應分析計算的基礎上進一步進行關鍵疲勞構件的局部熱點應力分析，對疲勞危險部位處的焊接構件建立三維有限元模型，施加符合橋梁實際工況的載荷與位移邊界條件，進行局部熱點應力分析，確定這些焊接構件內的名義應力和相鄰焊接區域內熱點應力之間的關系，得到相應的應力集中系數。 -
First, it studies the static experimental study on hollow shear walls of reinforced concrete. its aim is to know hollow shear - walls " performance whose ratio of shear span to effective depth of section is between 1 with 2, based on the studies of ones whose ratio of shear span to effective depth of section is between less than 1. by low - cycle and reverse horizontal loading test, their properties, including with strength property, deformation property and energy property, are studied
本課題的試驗目的是在先前所做的剪跨比小於1的低矮鋼筋混凝土空心剪力墻的基礎上，對剪跨比大於1且小於2的中高空心剪力墻有一系統的認識和了解，通過試驗掌握中高空心剪力墻在低周反復水平荷載作用下的強度、變形、能量方面的特徵。
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