簡支跨度 的英文怎麼說
中文拼音 [jiǎnzhīkuàdù]
簡支跨度
英文
simply su orted an-
The structure of simply supported - continuous system is now common used in small span bridges and bridge approach of large span
簡支轉預應力連續的施工方法是中、小跨徑橋梁和大跨度橋梁的引橋中普遍採用的結構型式。It shows that the method suggested in the paper is simple, applicable for engineering and has good precision. on the bases of the formulas deduced, and combining with relative test datas, it studies in the paper several factors influencing the bearing performance of the simple beams, such as shape of the external tendons, the equal moment segment length, span - to - depth ratio of the beam, valid initial prestress of the external tendons, area of the internal tension reinforcement, strength of the concrete, vertical distance between
在公式推導的基礎上，結合相關試驗資料，研究了體外筋的形狀、等彎矩區長度、梁跨高比、有效張拉預應力、體內受拉筋配筋率、混凝土強度、錨固點到樑上邊緣在垂直方向上的距離、體外預應力筋水平段長度（雙折線型體外筋的情況）以及荷載類型等對體外預應力混凝土簡支梁受力性能的影響。Considering that the characteristics of our country ' s highway tunnels are always of long spans, tabular and of various geometry, by means of thorough analysis of the different problems existed in the design of support structures of the tunnels at present, this paper pays special attention to the two key problems, optimization method of form selection of structural section of the tunnel as well as the stability and bearing capacity of the support structures, in the design of the long and large tunnel on high - class highway, introduces the simplified complex - form optimum method in the structure optimization theory, discusses the optimum design model of lining section of highway tunnel with satisfying demands in building clearance, ventilation and load conditions, puts forward an optimization method of form selection of three different kinds of lining sectional forms ( i. e. single - center circle, three - center tabular circle and three - center sharp circle ), establishes a complete set of systematic optimum design the ory and method of long and large tunnel on high - class highway, develops the corresponding computer software used on the planned xuefeng mountain highway tunnel on shaoyang to huaihua expressway in hunan province for optimization of form selections of the structural sections, and obtains a series of relatively reasonable structural design parameters
本文針對我國公路隧道多為大跨度、扁平、幾何形狀呈多樣化的特點，通過深入分析目前隧道支護結構設計中存在的各種問題，抓住高等級公路長大隧道設計中隧道結構斷面的優化選型及隧道支護結構的穩定性與承載能力兩個核心問題，引入結構優化理論中的簡易復合形優化方法，深入探討了滿足建築限界、通風條件、受力狀態約束等條件下公路隧道襯砌斷面優化設計模型，提出了三種襯砌斷面形狀（單心圓、坦三心圓和尖三心圓）的優化選型方法，建立起一套完善的高等級公路長大隧道的系統優化設計理論與方法，並開發出相應的計算機程序，用於擬建的上海至瑞麗國道主幹線湖南省邵陽至懷化高速公路雪峰山長大高速公路隧道的結構斷面優化選型，得出了一系列較為合理的支護結構設計參數。Four - way simply support common and long span composite slabs were also studied by the author with the finite elements method, and a calculation method was proposed
分析了組合板的破壞方式；採用有限元分析方法研究了四邊簡支普通跨度和大跨度的型鋼和壓型鋼板與混凝土組合板的抗彎承載力，提出承載力計算方法。As for the simply - supported slabs, the influence of the specimen fire proof properties is tested under the different concrete intensified degrees, under the different thickness of cover and under the different concrete quota. as far as the three - span continuous slabs are concerned, a series of analysis are conducted, including the specimen internal force redistribution under the different fire condition, the specimen deformation properties, features of the specimen destroying mechanism and the fire proof capability under the various condition
對簡支板，考察了不同混凝土強度等級、不同的鋼筋保護層厚度、不同配筋率等對構件抗火性能的影響；對三跨連續板，考察了不同受火工況下構件的內力重分佈變化情況、構件的變形性能以及構件破壞機構的特點；分析了各工況下構件的抗火性能的差異。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 energy due to the beam ' s falling is overwhelming. this impact will do great harm to the sub structure. the beam ' s falling, mainly because the displacement of the pier ' s top supporting the beam makes the span become greater, or the pier ' s displacement brings the beam change its position, which makes it come away from the pier ' s top
對于簡支梁橋，當地震作用發生時，落梁是一種主要的破壞形式，落梁的能量具有壓倒性優勢，沖擊會給下部結構帶來極大的影響，而墜落的原因，多數由於支承梁的兩橋墩的墩頂位移而使跨度變大，或是因為橋臺位移帶動梁使梁錯位，造成梁在墩頂處脫開。Consequently, the precast components don ’ t need any interim falseworks to be supported in the mid - span as bottom forms when the laminated concrete lay is being placed. furthermore, to form two - way slabs, the transverse steels can be arranged through the rectangular cores in the ribs of the precast slabs as needed. it makes the construction of composite two - way slabs easier and more feasible, practical, and suitable to introduce and apply to the building construction on a large area
由於預制構件具有剛度大和承載力高的特點，施工時以預制構件作為樓板底模無需設置跨中臨時支撐;同時還能通過預制構件板肋預留的長方形孔布置橫向受力鋼筋實現樓板的雙向配筋，使預應力雙向疊合樓板的施工簡單易行，更適合於大面積的推廣應用，具有較大的工程應用價值。Simply supported span
簡支跨度Buckling analysis of a long span fast launching simple supported bridge
大跨度快速拼裝式簡支梁橋整體穩定分析In order to ascertain the real stress and deflection of structure this paper puts forward experimental scheme. by measuring data during the process of construction, we can know the distribution of stress in simply supported - continuous beam and compare with initial design, then we can adjust it by control method to ensure quality of the bridge
提出具體的試驗方案，論述了測試元件的測試原理，通過測量各控制點在不同階段的應變和撓度，確定橋梁結構的實際應力大小和變形狀態，了解簡支轉預應力連續結構各跨主梁與連續處的應力分佈情況，並與設計相互驗證，通過施工控制使結構符合設計要求，保證施工質量。Considering the characteristics of internal force and structures of simply supported pc bridges, a novel automatically step - up method ( asum ), taking into account the influence of steel arrangement, steel ratio, stress losses of tendons and time - dependent concrete modulus, to analyze creep and shrinkage effects is presented. this method accepts all kinds of expressions of creep and shrinkage, and it is easy to calculate total stress, strain of concrete and steel and deflection of bridge at any time, the expected prediction accuracy will be obtained by further dividing the time - step within duration
首先，針對預應力混凝土簡支梁橋的受力特徵和構造特點，提出了徐變效應分析的全量形式自動遞進法，可考慮截面上鋼筋位置、配筋率、預應力鋼筋鬆弛、混凝土彈性模量隨時間變化等影響，且計算式可適用於任何形式的收縮、徐變特性表達式；建立的公式可方便地求解任意時刻混凝土、鋼筋的應力與應變和跨中梁體的豎向變形，計算精度可方便地通過計算時段的細分來控制，直至給出滿意的結果。On the basis of simplified calculation model presented by doctor wangxiaoping, some finite element models are set up. by finite element model program sap93, an analysis of static models of 18m - span and 30m - span w666 acmr in different supporting conditions is made. also a study on the relation between definite support displacement, which reflect variational stiffness of substructure represented by steel column or reinforced concrete column, and load - carrying capacity mechanical performance is made too
本文以w666金屬拱型波紋屋頂為研究對象，沿用王小平博士的簡化計算模型，對18m 、 30m跨波紋拱兩端不同支座形式（鉸支、固支和彈性支座）分別利用有限元計算程序sap93進行計算分析，研究波紋拱在不同跨度，不同支座形式下，不同外荷載作用時對該結構受力性能及穩定承載力的影響，同時分析下部支承鋼柱、鋼筋混凝土柱的剛度變化體現為允許支座位移的大小與結構受力性能及穩定承載力之間的關系。分享友人