asphalt bottom 中文意思是什麼
asphalt bottom
解釋
瀝青渣油-
In this paper, a high performance sma system applied to steel bridge deck is put forth in allusion to the pavement project of the wuhan junshan yangtze river highway bridge. it comprises steel slab, zn coating layer, closing layer, adhesive, pre - mixed asphalt stone and dual layer sma from bottom to top. it is based on the fea results of the forces and deformation of the pavement layer by means of the algor feas, according to this bridge ' s traffic and the ambient temperature varying range of the pavement layer
本文針對武漢軍山長江公路大橋鋼箱梁橋面鋪裝工程，從鋪裝層環境溫度變化范圍、交通量等使用條件出發，在用algorfeas有限元分析軟體分析鋪裝層受力變形基礎上，提出了（即鋼板+金屬鋅塗層+封閉層+粘接劑+預拌瀝青碎石+雙層sma ）的高性能鋼橋面sma鋪裝體系，並對這種sma的組成材料，包括改性瀝青、集料、礦粉、纖維進行了比較研究，設計了這種sma的配合比，對sma混合料的性能進行了對比試驗，對這種sma方案進行了疲勞性能研究，驗證了所選擇sma方案的可行性。 -
Analysis of bottom cracks in asphalt layers with geometric functions and weight functions
瀝青層底裂縫幾何函數和權函數分析 -
Here aiming at temperature and traffic load factors, have a systemic study about strcture ' s stress distribution. plan is to make use of ansys to calculate pavement structure ' s distortion with full grade gravelly interlayer carefully through changing each layer ' s thickness and module. next, analysize stress among bottom of surface asphalt layer and top of semi - rigitidy base. lastly. make a conclusion : how to distrube stress and strain about the structure after adding gravelly interlayer
方法是採用ansys對加設級配碎石基層半剛路面結構進行多種參數模擬計算，通過改變結構材料厚度、模量等觀察基層和面層應力變化，研究碎石基層怎樣調整結構應力而防止了溫度和行車荷載產生的過大拉應力，避免基層產生內部裂縫。 -
The vehicle load is simplified as static load. the influence of asphalt concrete temperature, the resilient modulus of the semi - rigid base and the composite foundation on the maximum deflection of the road surface, retained deflections, the radial stress of the base bottom and sub - base bottom is discussed. the working properties are analyzed by fem based on elasto - plastic dynamic mechanics
第三，採用drucker - prager屈服準則模擬復合地基和軟土地基，將車輛荷載簡化為靜荷載，分析瀝青混凝土的溫度、半剛性材料回彈模量、復合地基材料參數和厚度對路表的最大彎沉、殘余變形、基層和底基層層底的徑向應力的影響。 -
It is discussed that the load period, the damp ratio of pavement, the temperature of asphalt concrete, the resilient modulus of semi - rigid base, the material parameters and thickness of the composite foundation have influence on the vertical displacement, the radial stress of the base bottom and the sub - base bottom
具體探討了荷載周期、道路結構體的阻尼比、瀝青混凝土的溫度、半剛性基層的回彈模量、復合地基的材料參數和厚度對特徵點的豎向位移、基層和底基層層底徑向應力的影響。
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