elastic adj. 1.有弹力[弹性]的。 2.伸缩自如的,灵活的。 3.机变的,轻快的。 an elastic body 弹性体。 elastic braces 松紧吊裤带。 elastic force 弹力。 an elastic principle 灵活性的原则。 elastic ribbon 松紧带。 an elastic temperament 开朗的性格。 n. 橡皮线,松紧带,橡皮圈。 adv. -ally
resistance n. 1.抵抗,反抗,抗拒,抵御;敌对,抵抗力,反抗力,阻力,【生物学】抗病性。 2.【电学】电阻;阻抗;电阻器。 electric resistance 电阻。 abrasive resistance 耐磨力[度]。 dead resistance 吸收[消耗,镇流]电阻。 passive resistance 无源电阻;消极抵抗。 a piece of resistance 主要品,压轴,出类拔萃的东西;主菜,压桌菜(=pièce de résistance)。 make some [no] resistance 进行[不]抵抗。 offer [put up] resistance to [against] 抵抗。 resistance welding 电阻焊接,电焊。 take the line of least resistance 采取阻力最小的路线;采取最省力的方法。
Integrate the use of progressive elastic resistance for strength training with exercise balls , fitness steps and stability trainers 可配合运动球、平衡训练器等作进阶的综合伸展锻练。
Besides , this paper adopts the random finite element method , uses geometric and physical mechanical parameters that are relevant to lining weight of surrounding rock , coefficient of lateral pressure , height or buried depth of vertical loading , elastic resistance coefficients of surrounding rock , elastic modulus of support structure , unit weight of concrete , thickness of the structure as well as torsional strength and compression strength of concrete and etc . , as random variables , applies the monte - carlo method to sampling by computer , preliminarily evaluates the reliability of bearing capacity and stability of molded concrete lining of the xuefeng mountain tunnel , and obtains the related displacement of the lining , mean value and variance of internal force , and computed the reliability index of lining structures 此外,本文采用随机有限元方法,将围岩容重、侧压力系数、垂直荷载高度或埋深、围岩的弹性抗力系数、支护结构的弹性模量、混凝土容重、结构的厚度以及混凝土的抗扭与抗压强度等与衬砌结构有关的几何与物理力学参数作为随机变量,应用蒙特卡洛理论进行计算机随机取样,对雪峰山隧道模注混凝土衬砌的承载力与稳定性的可靠度进行了初步评估,得出了衬砌的相关位移与内力的均值和方差,并计算出了相应的衬砌结构可靠指标。
This paper , in allusion to damage of expansion joint of bridge , introduces a sort of new structure of jointless device - semi - integral abutment jointless bridge , and establishes model of general structure finite element of this bridge , and in details analyses its qualities of stress . the model considers the interaction of superstructure - substructure - soil . resistance of the soil behind abutment adopts still soil pressure and elastic resistance when the temperature rising , but active soil pressure when dropping . analysis of qualities stress of bridge includes of action of dead load , car load , temperature load of season character . taking an 100m length pc semi - integral abutment jointless bridge as instance , the paper establishes the model of plane frame by applying large common software - anasys , and analyses it by elastane and large deformation to imitate character of stress and deformation of general bridge . at the same time corresponding models of finite element of joint bridge and integral abutment bridge are established , and unique stress and performance of structure of semi - integral abutment jointless bridge are researched by comparing and analysing character of three different models under same loading , and controlling factor of design and constitution are generalized . in conclusion , for semi - integral abutment jointless bridge , on one hand shear , moment and deflection of the main beam and axis force of substructure are approximate with that of joint bridge , and integral stifmess of structure is increased and damage of expansion joint is eliminated , on the other hand there is axis force in main beam , shear and moment of substructure are bigger than that of joint bridge . in all this type of jointless bridge has rational stress and is worth of application and popularization 半整体式桥台无缝桥梁计算模型考虑了上部结构-下部结构-土的共同作用;台后土抗力升温时采用静止土压力加弹性土抗力,降温时采用主动土压力;分析桥梁受力性能时考虑了结构自重、车辆荷载和季节性温变荷载的作用。以一座桥长100mpc半整体式桥台无缝桥梁为实例,采用大型通用软件ansys建立平面框架模型,进行弹性、大变形分析,模拟全桥受力和变形特点;同时建立与此对应的有伸缩缝桥梁和整体式桥台无缝桥梁有限元模型,通过三种桥型同步加载对比分析,研究半整体式桥台无缝桥梁独特的受力特点和结构性能,总结其设计控制因素和构造要求。通过本文研究知:半整体式桥台无缝桥梁主梁的剪力、弯矩、挠度和下部结构的轴力与梁式桥相近,结构整体刚度增大,并除去了伸缩缝病害;但主梁增加了轴力,下部结构剪力、弯矩较梁式桥大;综合分析是一种受力合理有实践和推广价值的桥型。