vertical prestress 中文意思是什麼
vertical prestress
解釋
豎向預力-
Two types of seismic calucation methods that are response spectrum analysis and time - history analysis are used to analyze the seismic response of kiewitt ' s suspen - dome under lateral seismic action and vertical seismic action. the result obtained by above - mentioned methods and the code method are compared. genetic algorithm method is proposed to optimize the prestress of suspen - dome
本文採用振型分解反應譜法和時程分析法兩種方法，對kiewitt型弦支穹頂預應力結構的水平和豎向地震作用下的地震效應進行計算分析，並同現行的規范和規程的規定方法一10重力荷載代表值簡化法計算結果進行了比較分析。 -
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。 -
( 1 ) based on the experiments, this thesis discusses the stress loss of vertical prestress caused by deformation of anchorage, the resilience of the tendon and the joint compression ( l2 ), the elastic compression of the concrete ( l4 ) and the relaxation of the tendon ( l5 ). it is concluded that the anchorage deformation is dominated in vertical stress loss. measures are suggested to diminish the loss of the vertical prestress during the design and construction of the bridge
（ 1 ）本文在試驗的基礎上，研究了豎向預應力筋的錨具變形、鋼筋回縮和接縫壓縮損失l2 、混凝土的彈性壓縮損失l4和力筋的應力鬆弛損失l5 ，其中，第一項是最主要的損失，論文據此對設計和施工中如何減小豎向預應力的損失提出了自己的看法和建議。 -
This thesis investigated the effect of the stress loss of vertical prestress on the development of skew cracks and proposed the important issues in the design and construction of pc bridges
裂縫產生的原因很多，本文主要從預應力損失及其效應的角度來探討這個問題，希望能對同類橋的設計和施工有所幫助。 -
Abstract : through the practice of vertical pressers in long sp an continuous box - girder and the research of two - way prestress model test, the construction technology about unbonded vertical prestress is proposed and applie d in hanjiang bridge in hanchuan. for the first time, it ? s first adopted in long span concrete bridge in our country and a lot of economic benefits are created b ecause of its advantages such as little drill way, rapid and imple construction, h igh quality and so on
文摘:通過漢川漢江公路大橋大跨徑連續箱梁豎向預應力施工實踐和雙向預應力模型梁試驗研究，在該橋施工中提出並應用了無粘結豎向預應力技術.這在國內大跨徑砼橋樑上尚屬首次全面採用，它具有孔道直徑小，施工簡便快速，質量易於保證等優點，為全橋預應力施工創造了較為顯著的社會經濟效益
分享友人