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corbel n.【建筑】翅托。vt.用翅托支承,給…砌上翅托。vi....

corbel arch

Until now , the domestic and overseas scholar has studied the factors that have effect on performance of steel fiber reinforced concrete corbel such as shear span to depth , strength of concrete , reinforcement ratio ( including longitudinal reinforcement and stirrup ) and ratio of horizontal to vertical load . for calculating the cracking load , and ultimate load domestic and foreign scholar has brought forward a series of calculative formulas and methods have been put forward that based on statistical analysis , flexural model and truss model 到目前為止,國內外學者已研究了剪跨比、混凝土強度、配筋率(包括縱向鋼筋和箍筋) 、水平荷載與垂直荷載之比等因素對鋼筋鋼纖維混凝土牛腿受力性能的影響,對牛腿的抗裂計算和承載力的計算,國內外學者曾提出了基于數理統計分析、彎壓模型和桁架模型等的一系列計算方法和計算公式。

Based on extensive investigation of construction technique history of chinese ancient buildings , the structure method , structure developing history and seismic behavior of chinese ancient timber structure buildings are analyzed in several respects of the structural system and form . through a series of experiments on constituent parts of chinese ancient timber building structure , including the tests on the corbels and brackets called dougong subjected to low cyclic reversed loadings , the tests on the wooden frame using the tenon - mortise joints as connections of column and beam subjected to low cyclic reversed loadings , the tests on vibration isolation effect of friction and slippage between column footing and their socle base , and a series of shaking table tests on a chinese ancient timber structure palace building mode under artificial earthquake at serving conditions , destroyed conditions and reinforced conditions , many valuable results of structures such as moment - curvature hysteretic loops of dougong structure and tenon - mortise joints under low cyckc reversed loadings , the static function , the seismic performance , energy dissipation , vibration reduction , energy - loss mechanism , nechanicalmode and failure mode were studied . aplenty of valuable parameters of the structure system were obtained , such as the natural period of structure , vibration modes , damping ratio , factor of vibration isolation , oscillate amplitude of ineitial accebration , velocity and displacement , magnitude of slippage , and the mechanism of structure failure and collapse etc . based on these research , the complete analysis of ancient timber structure under earthquake were carried out in which including mechanism analysis method , calculating mode , strength analysis of members and joints , strengthening methods for serving damaged ancient timber structure buildings were also taken into account 依照宋代《營造法式》建造了抬梁式殿堂木結構構件及結構模型,對中國古代木結構中的典型構造如:柱腳在礎石頂面平擱簡支、柱架榫卯連接、柱高不越間之廣、側腳、生起、斗拱等的構造機理及結構功能進行了量化分析和實驗研究: (一)通過木柱石礎靜摩擦試驗,測定了柱腳與石礎古鏡面間的摩擦系數及摩擦力隨上部結構荷載變化的規律; (二)通過單柱承載力試驗,測定了古建筑中木柱的受力變形特征、破壞模式、及模型材料的變形模量、極限承載力、極限變形等參量; (三)通過柱架低周反復荷載試驗,測定了柱架的抗側移剛度、柱架恢復力特性及滯回曲線、榫卯張角剛度及其變化規律、柱架及榫卯的極限承載力和極限變形、及榫卯減振參數; (四)通過斗?低周反復荷載試驗和受壓試驗,測定了古建筑木構件與木構件間摩擦系數,斗?抗側移剛度,斗?恢復力特性及滯回曲線,斗?抗壓極限承載力及受力變形規律; (五)通過抬梁式殿堂間架模型振動臺試驗,測定了殿堂木構架結構自振周期,地震反應振形、阻尼特性及阻尼比;按結構分層特點對柱腳、柱頭和斗?層上的屋蓋的地震反應采用多點同步測量,對柱根滑移、榫卯變形、斗?的變形、復位、耗能減振參數等進行了定量分析。

According to the theory , the method of using half - rigid pile reinforce the embankment below the corbel of the approach slab which form a composite foundation and realize rigidity gradation , is put forward in this paper and the formula to calculate pile - soil stress ratio in light of visic curvity expansive theory is also deduced here which can be used in design 應用這一理論,本文提出了采用半剛性擠密樁復合地基加固橋頭搭板枕梁下路堤實現,路、橋的剛柔過渡方法。針對低強度半剛性擠密樁計算理論的現狀,本文應用魏西克( visic )擴孔理論推導了計算樁土應力比的理論公式,可供設計階段采用。

For the sake of adding design methods of steel fiber reinforced concrete corbels into technical regulations of steel fiber reinforced concrete , according to the arrangement by the group that edit the regulations , subsidized by the outstanding youth fund of henan province , carries out the experimental study of 22 steel fiber reinforced concrete corbels . the pressurized behavior of steel fiber reinforced concrete corbels is studies rather systematically , and calculative methods and formulas that adapt for pressurized characteristic of steel fiber reinforced concrete corbels are put forward 為了我國新修訂的《鋼纖維混凝土技術規程》中增加鋼筋鋼纖維混凝土牛腿設計方法的有關內容,根據規程修訂組的分工與安排,在河南省杰出青年基金項目的資助下,本文進行了22個鋼筋鋼纖維混凝土牛腿試件的試驗研究,比較系統地研究了鋼筋鋼纖維混凝土牛腿的受力性能,提出了適應于鋼筋鋼纖維混凝土牛腿受力特點的計算方法和相應的公式。

Thus the use of steel fiber reinforcement concrete in corbel can avoid complicated calculating in design , and the diminish difficulty of construction , at the same time when corbel ' s dimension can not be increased the reinforcement concrete corbel ' s ultimate load capacity and anti - seismic performance can be improved by the addition steel fiber into concrete . this method has become a kind of applied method and is highly concerned by the domestic and international academe and engineer group 因此,在配筋密集的牛腿中使用鋼纖維混凝土可以避免設計時繁雜的配筋計算、減小施工難度,同時在牛腿截面尺寸不能增大的情況下,可以通過加入鋼纖維來提高鋼筋混凝土牛腿的承載力和抗震性能,用鋼纖維加入鋼筋混凝土牛腿已成為一種實用方法受到了國內外學術界和工程界的極大關注。

The corbel ' s dimension should be ascertained as the manipulative condition of diagonal section . the amount of longitudinal reinforcement be ascertained on the basis of the flexure model , is obtained according to static for balance condition , the calculative expression of the load is obtained . and in terms of the design method in ultimate state the maximum load 我國規范對于牛腿的設計規定,牛腿尺寸的確定以斜截面抗裂作為控制條件,縱筋用量的確定以彎壓破壞模型為基礎,根據靜力平衡條件得到承載力的計算公式,按照極限狀態設計方法計算得到,箍筋用量則按照構造要求確定。

For reinforcement concrete corbel with the shear span to depth ratio ( a / ho ) less than 1 , has its performance of mechanics that is close to cantilever deep beams , it is an important kind of components in architectural structure which sustains roof trusses , brackets , tray “ beams , frame “ beams , wall “ beams and crane “ beams 剪跨比a h _ 0 1的短鋼筋混凝土牛腿,其受力性能接近于懸臂深梁,在建筑結構中是支承屋架、屋面梁、托架、托架梁、框架梁、墻梁和吊車梁等的重要構件。

Nowadays convention exhibition industry ( hereby called cei ) has been recognized as a corbel industry in most cities of china , owing to its strong domino effect which often affects in the area of society , economy and culture 由于會展業具有較強的社會、經濟、文化效應,當前我國許多城市發展會展業的熱情空前高漲,許多城市將會展業作為地方的一項支柱產業或重點產業來發展,但目前我國城市會展業的發展中還存在一些問題,如重復辦展、管理混亂、定位盲目等。

There is no relavant content in corbels in steel fiber reinforced concrete regulations of structural design and construction ( cecs38 : 92 ) . accordingly the design of steel fiber reinforced corbels does not have any regulations to follow 國內現行的《鋼纖維混凝土結構設計與施工規程》 ( cecs38 : 92 )也沒有相關的內容,使得鋼筋鋼纖維混凝土牛腿的設計無章可循。

The complex consists of circular defensive towers in the form of truncated cones built of dressed stone , with corbel - vaulted internal chambers 這一綜合結構包括用修琢的石頭堆砌而成的錐狀環型防御塔,以及在塔內用梁托支撐成的套間。

Corbel back slab 撐架懸臂板

Application of strut - and - tie model to the design of corbel distributed steel 壓桿模型法在牛腿配筋設計中的應用