混凝土拱 的英文怎麼說
中文拼音 [húnníngtǔgǒng]
混凝土拱
英文
concrete arch-
Design of half - through steel pipe bowstring concrete arch bridge of long - span, and knowledges to it
大跨度中承式鋼管系桿混凝土拱橋設計和體會The calculation modes of the coefficient of shrinkage and creep of the bulgy core concrete in steel tube are discussed. based on a few reasonable hypotheses and the stress - strain relation of concrete acquired by the " adjusting valid modulus depending on load time " method, a compact formula is reasoned out, which is applied to calculate the equivalent elastic modulus of the bulgy core concrete considering the affection of shrinkage and creep. so, the analysis of the affection on cfst arch bridge by shrinkage and creep can be progressed by pole - girder fem, further more, the analysis precision is quite high
本文還對核心膨脹混凝土特殊的收縮、徐變系數計算模式展開了探討，在合理的假設前提下，採用「齡期調整的有效模量法」得到的混凝土的本構關系，推導出鋼管內核心混凝土在考慮徐變影響后的等效彈性模量計算公式，並以此為基礎採用桿系有限元方法來對鋼管混凝土拱橋進行較高精度的收縮徐變分析。The cyclo - hoop effect which steel tubular has exert to the concrete shows the character of heterogeneous in the arch rib section, the same to the axial direction. the paper verifies the change of the material poisson ration and the concrete grade will make the cyclo - hoop effect obvious alteration, the change of the cyclo - hoop effect and the stress redistribution of the section produced by the shrinking and creeping of the concrete and the expensive concrete on the section
在鋼管混凝土拱肋斷面上，鋼管對內填混凝土的環箍效應具有非均勻性，在拱軸方向上環箍效應也呈現非均勻性。驗證了材料的橫向變形系數、混凝土標號等參數的變化將引起環箍效應的明顯改變；混凝土的收縮、徐變和膨脹混凝土的應用導致鋼管混凝土的環箍效應發生變化並使截面的應力發生重分佈；並總結了其變化的基本規律。Calculation of the temporary stays in the erection of steel tube arch ribs by suspender method
某鋼管混凝土拱橋拱肋懸索吊裝施工中的扣索計算This paper presents the structural design of the main bridge of lhasa river bridge, makes a deep - going study of the key techniques for design of the bridge, such as the reasonable span length ratio of each span of the 5 - span girder and arch hybrid structure, mechanical behaviour of the dual arch ribs, and section of the continuous girder tie beam, and also works out rigidity and stress conditions of the continuous girder tie beam and stress conditions of the concrete - filled steel tube arches of the main bridge
摘要介紹了拉薩河特大橋主橋結構設計情況，對於五跨梁拱組合橋梁各孔跨合理的跨度比、疊拱的受力行為及連續梁系桿截面形式等設計中的關鍵性問題進行了深入的研究，給出了主橋連續梁系桿的剛度和應力情況、鋼管混凝土拱的應力情況。In this article, according to heat conduction theory, elastic creep theory and finite element theory, the temperature field and creep stress field in the arch dam during construction and operation are simulated and analyzed by means of three dimensional finite element relocating mesh method, and the distribution law of the temperature field and creep stress field in the arch dam during construction and operation are systematically studied, and according to the construction process of concrete arch dam, the effect of lamination placement, construction interval, elastic modulus change, thermal insulation change, surrounding temperature change, concrete creep and autogenous volume change on thermal stress in the arch dam are also considered
論文根據熱傳導理論、彈性徐變理論及有限元理論，用三維有限元浮動網格法對拱壩施工期和運行期溫度場、徐變應力場進行了全過程模擬分析，較為系統的研究了混凝土拱壩施工期和運行期溫度場、徐變應力場的分佈規律，在分析中按照混凝土拱壩施工過程，考慮了混凝土分層澆築、施工間隙時間、彈模變化、絕熱溫升過程、環境溫度的變化、混凝土徐變、自生體積變形等因素對壩體溫度應力的影響。This paper focuses on the research of the stress mechanism of the ribbed shell structure in statics, dynamics and under the explosive load on the basis of the engineering practice of cave depot of single aircraft. in this paper, according to the classical shell theories, the basic differential equilibrium of the ribbed shell structure and the finite element analysis of 3d rippled plate are established, in which the function of annular ribs reinforcement bars and 3d ripped steel plates are distributed in the range of the steel, and the functions along the longitude direction of tension, bending, and torsion are neglected ; applied with dynamic analytical theory, the dynamic model of ribbed shell structure and the analytical theory model of elastic - plastic are set up ; the triangle series method is used to solve the displacement and stress under the distributed load and the concentrated load of the ribbed shell structure
本文以軍用機場地面單機掩蔽庫工程建設為工程背景，首次對內襯三維波紋鋼板混凝土拱型復合結構的受力機理進行了靜力、動力和爆炸荷載的分析研究。根據將橫肋、鋼筋及三維波紋鋼板的作用均勻分佈在殼體范圍內的情況，忽略橫肋、鋼筋及三維波紋鋼板沿殼體母線方向的抗拉、抗彎及其抗扭作用，首次推導出了內襯三維波紋鋼板混凝土殼體的微分平衡方程，建立了有限元計算模型，並採用三角函數法，求解了三維波紋鋼板混凝土拱型復合結構在分佈荷載和集中荷載作用下的位移響應和應力響應，並與普通殼體進行了比較。It also analyzed the whole stress of the ribbed shell structure under the explosive load. the analytic result keeps well with that of the dynamic response of 6. 8kg tnt. it shows that this analytic method in this paper is feasible for the design and inspection of cave depot of single aircraft
通過理論計算與6 . 8kgtnt裝藥爆炸時的動力響應實測比較，兩者數值吻合很好，表明本文計算分析方法是可行的。為鋼板-混凝土拱型復合結構的設計與檢驗提供了理論基礎，為飛機單機掩蔽庫工程的設計檢驗提供了一條可行的計算分析方法。In chapter four, on the bases of the analyzing of the theory of concrete creep, a program for creep analysis of cfst arch bridge is compiled, the program results are compared with the experimental data, which proved the programming procedure is correct and finding some creep rules of cfst
第四章在論述混凝土的徐變理論基礎上，推導出了鋼管混凝土徐變應變的理論計算公式，並編制了鋼管混凝土拱橋徐變分析的程序，將徐變試驗觀測結果和程序計算值進行對比分析，得出鋼管混凝土徐變的一些基本規律。The research fruits in this article can provide the temperature isoline map of crown cantilever section and central longitudinal section of the dam, the stress isoline map of crown cantilever section and upstream and downstream surfaces of the dam, the maximal and minimal stress distribution map in dam abutment along with the height of dam, the maximal and minimal stress table of typical nodes and the maximal and minimal stress table in different elevations, and also provide reference basis for taking relative temperature control measures in the design and construction of rcc arch dam
本文研究成果可給出壩體的拱冠梁剖面和壩體中心縱剖面的溫度等值線圖、拱冠梁剖面和壩體上下游面應力等值線圖、壩肩最大最小應力沿壩高的分佈曲線、不同高程處典型點的最大最小應力值表以及不同高程處最大最小應力值表等成果，為碾壓混凝土拱壩的設計和施工中採取相應的溫控措施提供了參考依據。It is pointed out that the stability of the dam abutment is a key factor affecting the safety of concrete arch dams
摘要指出可能影響混凝土拱壩安全的關鍵點為拱壩壩肩的穩定。Presently, cfst arch bridges develop in the direction of large - span and lightweight style, accordingly, investigators and devisers should increasingly attach more importance to their dynamic behaviour, and some typical dynamic matter of bridges, such as seismic response, wind induced vibration, coupled dynamic vibration between bridge and vehicle should not be ignored
目前，鋼管混凝土拱橋正朝大跨、輕型的方向發展，因此，該類型橋梁的動力特性也日益引起重視，象地震、風振、車振等橋梁的典型動力問題也是該類橋梁所無法迴避的。Concrete arches are an economical way to transfer loads to the ground where foundation conditions are adequate to resist horizontal loads.
當基礎條件足以承受水平荷載時，混凝土拱橋確是一種能使荷載傳遞到地基上去的經濟有效的橋型。This paper introduces the development and present situation of concrete - filled steel tube arch bridge in the world ; generally analysis the mechanism, construction technology, construction equipment of the job practice ; advance the entire scheme of the long - span concrete - filled steel tube arch rib construction ; at last give the analysis the concrete scheme of the concrete - filled arch rib construction. this paper declares the reference value of the study through the above
本文介紹了國內外大跨度鋼管混凝土拱橋主拱肋施工的發展和現狀；綜合分析了拱橋施工的機理、技術和設備情況；提出了大跨度拱橋主拱肋施工的完整解決方案，最後通過具體橋梁施工方案的設計分析，說明了本項研究成果的現實參考價值。Presented in this thesis is a model test of the arch ribs segment with concrete filled steel tube ( cfst ) of maocaojie bridge, which is located in the yiyang of the hunan province and provides the engineering base for the test
本文以湖南省益陽茅草街大橋為工程背景，進行了茅草街大橋主拱圈鋼管混凝土拱肋拱頂1 ： 5節段模型試驗。Study of damage behaviour of shapai rcc arch dam
沙牌碾壓混凝土拱壩損傷開裂分析Flexible rcc arch dam on a weak foundation
軟弱地基上的碾壓混凝土拱壩應力與位移分析Spatial stability analysis of cfst arch bridge
鋼管混凝土拱橋空間穩定分析Especially indicate how to calculate the modulus of partially cfst arch bridge axis with different section and not even constant loads mass degree
特別指出了部分灌注鋼管混凝土拱橋截面不統一且恆載集度有變化的前提下，如何考慮其拱軸系數的計算。The half analytic formula is reasoned out, which is applied to the sensitivity analysis on design parameters. through the sensitivity analysis of design parameters in constructing phase of nanpu bridge, the main design parameters are confirmed. based on this, the real value of parameters are identified by least square method, by this token, the error of design parameters can be eliminated in the process of construction control
為了減小鋼管混凝土拱橋施工過程中的施工控制誤差，本文推導出了用於結構設計參數敏感性分析的半解析公式，並對南浦大橋各施工階段的結構參數進行了敏感性分析，從而確定出該橋的主要設計參數，在此基礎上，利用最小二乘法對這些參數進行識別，估計出各參數的真實值，以消除施工控制中結構設計參數誤差。分享友人