| With the widely extensive application of massive concrete in construction project，tounderstand the distribution of temperature fields and thermal stress and grasp the crackingmechanisms is becoming more and more important. But in the current study on massiveconcrete typically plain concrete material is considered without considering the role ofreinforcement; which will led to the difference of analysis and the situation. another, wealways analyze it using the constant section and less consider the variable sections andrigidity.FEM analysis methods are firstly analyzed in detail about temperature field and thermalstress of mass concrete in the paper and Specific elaborated analysis method used in processand the key points，such as the applied concrete heat source, implementation of elasticmodulus change in ANSYS, specific methods of thermal structure coupling analysis. Then anengineering example is specially analyzed using finite element program ANSYS, it gives thechange regularity of the temperature field and temperature stress field, analyzes the changereason of stress in Flexural Rigidity and its change mechanism. In order to determine thereasonable and effective measures for temperature control scheme,it provides certaindecision-making basis, summarizes some engineering measures of. the control results oftemperature stress and prevent the structure crack.Through the analysis temperature field and thermal stress field of reinforcement concreteIn this paper, we learn that thermal properties such as thermal conductivity, specific heat arepretty improved after reinforcement. Steel bar not only change concrete thermal performancebut also the mechanical properties. we make specific calculation and analysis to thetemperature crack resistance mechanism and summarizes the reinforcement principle of massconcrete crack control from the angle of the reinforcement mechanics performance ofconcrete to be changed in this paper.Analysis shows that Flexural Rigidity has the considerable impact on the stress of mass concrete and it will make very good effect in cracking resistance of the whole structurereinforcement concrete to configure reinforcement; it is very necessary to attention thebeneficial effect of reinforce bar in the temperature control of mass concrete cracks. effectivereference is provided in this paper study results for subsequent detailed and precise analysison reinforcing steel in concrete anti-cracking... |
