unbonded design 中文意思是什麼
unbonded design
解釋
按無握裹效應設計-
Ultimate stress increment is a hotspot problem in theory of unbonded partially prestressed concrete structure, however, according to design critera and the art of the state on this issue around the world, it is still not considered in reason that ultimate stress of unbonded tendons in prestressed concrete multi - span continuous structures varies with load cases
無粘結筋的極限應力增量一直是無粘結預應力混凝土結構理論中熱點問題，而從目前各國的設計依據及研究現狀來看，還沒有合理考慮多跨連續結構的無粘結筋極限應力隨荷載工況變化的情況。 -
The experimental component design of unbonded prestressed concrete slab under fire
無粘結預應力混凝土板火災試驗構件設計 -
In a big cantilever overhung structure, unbonded prestressing concrete technology can increase the stiffness of reinforced concrete brace, decreases the de - formation, cut down the column section area, save the cost, solve the difficult problems during the process of design and construction and also enlarge the range of unbonded prestressing concrete technology
摘要在大懸臂懸挑結構中，利用無粘結預應力施工技術，提高鋼筋砼支撐的剛度，減小變形，減小柱截面面積，節約造價，解決了設計、施工中的難題，擴大了無粘結預應力技術的應用范圍。 -
Compression dispersion - type anchor can be mainly classified into two categories, one of which is that, plastic coated strands in different length are respectively passed through their own bearing bodies and pre - bent as their midpoints to be t he shape of " u ", then forming several totally unbonded strand loops, i. e. unit anchor tendon. as the research object in this paper, study is performed on the anchor holding capacity, load - displacement behavior, displacement of the fixed anchor length, strain and bond stress distribution, and the removability of anchor tendon, furthermore, with the aid of analytical solution, the distribution of the bond stress is calculated and analyzed, based on the results of test and analytical solutions, design method is provided in this paper
壓力分散型錨索主要有兩種結構型式，本文是以將不同長度的無粘結鋼絞線分別繞過不同的承載體彎曲成「 u 」形而組成各個單元錨索體這種型式為研究對象，對其承載力、荷載位移特性、錨固段位移特徵、應變與粘結應力分佈特徵以及錨索體的可回收性能展開研究，並藉助于理論分析研究其粘結應力分佈狀態，然後在此基礎上提出了壓力分散型錨索的設計計算方法。 -
The contents include as follows : the influencing factors of the displacement ductility factor of the unbonded partially prestressed concrete frame structures, such as stirrup reinforcement characteristic value, nominal shear span ratio, axial compression ratio, the appearing order of plastic hinges and partial prestressing ralio ( ppr ) are discussed. the formula of displacement ductility factor of the unbonded partially prestressed concrete frame structures is suggested by regression analysis. with regard to the aseismic design and the request of ductility and energy dissipation, the restriction of the flat - beam / column sectional size and aseismic reinforced design are discussed
本文主要包括以下內容：討論了配箍特徵值、名義剪跨比、軸壓比、塑性鉸出現順序、預應力度等因素對無粘結部分預應力混凝土框架位移延性系數的影響，回歸了考慮影響因素的位移延性系數計算公式；對無粘結部分預應力混凝土扁梁框架結構，闡述了抗震設計對扁梁、柱截面尺寸的要求與限制；對滿足延性和耗能要求的無粘結部分預應力混凝土扁梁控制截面抗震配筋進行了探討；通過對無粘結部分預應力混凝土扁梁梁端的受力分析，改進了以往扁梁梁端扭矩設計值計算公式。 -
The main contents of this thesis are the aseismatic performance and design theory of steel reinforced concrete structures and unbonded prestressed concrete structures
本文的主要研究內容是型鋼混凝土結構和無粘結預應力混凝土結構的抗震性能和設計理論。 -
Eurocode 2 : design of concrete structures. general rules. structures with unbonded and external prestressing tendons together with united kingdom national application document
歐洲規程2 :混凝土結構設計.總則.未粘結和預應力鋼筋結構
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