近拱點 的英文怎麼說
中文拼音 [jìngǒngdiǎn]
近拱點
英文
periapsis-
Many beam - arch combination system bridges ( bacb ), as their good mechanical behavior, low cost, constructibility and beautiful appearance, have been built all over china in these years
梁拱組合體系橋梁近年來在我國發展迅速，由於其受力合理、造價低廉、施工簡便、造型美觀等特點，在公路建設中得到廣泛應用。For example, no - supporting elements should be made of light material which attracts less seismic loads. 2 ) generally speaking, seismic combined maximum loads of aqueduct transverse direction is less than 100kn, which present joints near the arch - foot sections
2 ）總的來看，各質點橫槽向的地震總名義合外力不大，最大值不到100kn ，且發生在支座附近緊臨拱腳的節點上。In recent years, as a new - type bridge, concrete - filled steel tubular ( cfst ) arch bridge has been deeply developed in our country ' s construction, for its own merits and can luckily make agreement with the factual situation of bridge engineering
近年來，鋼管混凝土拱橋作為一種新興的應用新材料的橋型，由於自身的優點以及與我國的橋梁建設的實際情況相適合，因此得到了極大的發展。It ' s the first time clearly and systematically to present the concepts of restraint influence coefficient of steel to strain increment, to curvature increment and to deflection increment due to creep which are different each other. theoretical formulae are established, and approximate formulae are also obtained while considering the characteristics of common - used concrete and ambient condition of real bridges in china. so, an approximate restraint influence coefficient method to analyze the effect due to creep and shrinkage in pc bridges is put forward, and the equations to estimate second - force due to creep considering influence of steel in system - transferred continuous pc bridges is also established
本文首次清晰而系統地提出了鋼筋對徐變的不同效應（徐變應變、徐變曲率、徐變上拱）約束影響系數的概念，建立了相應的計算式；結合我國普遍採用的混凝土的徐變特性和橋梁的構造特點及工作中南大學博士學位論文摘要環境特徵，給出了具有較高計算精度的實用計算式;在此基礎上，建立了橋梁徐變效應近似分析的鋼筋約束影響系數法，並推導出了考慮鋼筋影響的超靜定梁徐變次內力的近似計算式，可方便地應用於橋梁研究和設計中。In our country, cfst arch bridge is a new technique accompanied with bridge construction recently, which are light deadweight, high strength and high resistance to deformation
鋼管混凝土拱橋是我國近年來橋梁建築發展的新技術，具有自重輕，強度大，抗變形能力強的優點。The conclusions are list as follows : ( 1 ) the mechanical properties of different parts of the bridge are as follows : arch is under the combined action of compression and bend ; open spandrel beam is under the combined action of tension and bend ; close spandrel beam is under the combined action of compression ( or tension ) and bend, but the axis force is small
本文得出的結論如下： （ 1 ）空腹式剛架拱橋的受力兼具梁和拱的特點。結構各部位的受力特性如下：斜腿為壓彎作用；空腹段梁體為拉彎作用；中跨實腹段梁體為壓彎作用或拉彎作用，但軸向力較小，受力更接近純彎構件。分享友人