地震剪力 meaning in Chinese
seismic shear
Examples
- Under the horizontal earthquake action and wind force , aim at " the pure frame structure with rectangle columns " , " the pure frame structure with special - shaped columns " , " the frame - truss structure with special - shaped columns " and " frame - shear wall structure with special - shaped columns " , earthquake action analysis was done by the spacial finite element method through the changes structural parameter . analyzing systematically " structure vibration mode " , " vibration period " , " structure lateral rigidity " , " seismic action force " , " seismic response force " , " floor seismic shear force " , " lateral horizontal displacement of structure " and " members internal force " . results indicate : ( 1 ) based on equal area , the special - shaped columns replaced the rectangle columns , the structural lateral rigidity enlarges , the lateral displacement minishes obviously , the earthquake response increase slightly , the biggest increasing amount of frame columns axis - compress ratio is smaller than 0 . 08 . the whole aseismic performance of structure has improved ; ( 2 ) when the section ' s length and section ' s thickness ratio of special - shaped columns is smaller than 3 . 6 , the structure benefits to resist seismic action ; ( 3 ) the angle of horizontal seismic action with the whole coordinate is 0 degree , structure earthquake response is bigger , belonging to a control factor of structure aseismic design ; ( 4 ) the frame - truss structure with special - shaped columns and the " a " - brace has the biggest lateral rigidity ; ( 5 ) the frame - shear wall structure with special - shaped columns have bigger lateral rigidity and smaller displacement , members internal force enlarged just rightly , have much superiority of resisting seismic action ; ( 6 ) in the higher seismic fortification criterion region ( 8 degree of seismic fortification intensity ) , aseismic disadvantageous building site ( iii type site ) , adopting special - shaped columns structure system , should reduce possibly the building ' s self - weight in order to reduce the earthquake response ; ( 7 ) the response spectrum method of computing seismic response and the time - history analysis method have similar analysis result
西安理工大学硕士学位论文在水平地震作用下，并考虑风荷载组合，分别对“矩形柱纯框架结构” 、 “异型柱纯框架结构” 、 “异型柱框一析架结构”及“异型柱框-剪结构”等四种结构体系，通过改变结构参数，运用空间有限元方法，进行地震作用计算。系统地分析研究“结构振型” 、 “振动周期” 、 “结构侧向刚度” 、 “结构地震反应力” 、 “楼层地震剪力” 、 “结构侧向位移” 、 “层间位移角” ，以及“构件内力” 。结果表明:在等面积原则下，异型柱代换矩形柱后，结构刚度增大，侧向位移明显减小，地震反应力略有增加，框架柱轴压比最大增幅小于8 % ，结构整体抗震性能有所提高;当异型柱肢长肢厚比小于等于3 . 6时，结构有利于抗震;水平地震作用力与整体坐标夹角为0度时，结构地震作用效应较大，属结构设计的控制因素之一;异型柱框一析架结构采用“人”字斜撑，侧向刚度大于“八”字斜撑和“人一八”字混合斜撑;异型柱框一剪结构侧向刚度大、位移小，构件内力增大适中，是一种抗震性能优越的结构体系:在抗震设防烈度较高地区( 8度)和抗震不利的建筑场地( m类场地) ，采用异型柱结构体系时，应尽可能减轻结构自重，降低地震作用力;分别采用“振型分解反应谱”法和“时程分析”法进行地震作用计算，两种方法所得结果基本一致。 - The analysis results and suggestions have been adopted in the structural design . from above analysis , the thesis gets conclusions as following : ( 1 ) total shearing forces under earthquake action in stories under transfer story increase as position of transition story elevated , which is the negative impact resulted from higher position of transfer story and the regulations of position of transfer story in code is reasonable
本文的分析结果及建议已用于该工程的结构设计中，对于转换层位置及形式对复杂高层建筑结构地震反应的影响问题，主要得出以下一般性结论：地震作用下，转换层下部楼层的层总地震剪力和弯矩随转换层位置的增高有所增大，这是转换层位置较高带来的不利影响，规范对转换层位置进行限制是适当的。 - Research shows that the maximum shear and moment or the maximum increment happens in the ground floor due to elevating of position of transition story ; ( 2 ) when transfer story is located at higher position , the in - story displacement between floors near transfer story change severely , but the value is smaller than the value came from the lower position of transfer story ; ( 3 ) it is economical in cost and beneficial for seismic properties of whole structure to reduce the depth of the transfer beam simultaneously ensuring its shear , blending and deformation capacity under vertical load , wind load and seismic action ; ( 4 ) big depth beam and thick transfer plate are advantageous for anti - torsion of structure , but frequently transferring is disadvantageous for anti - torsion of structure and should be limited
但研究表明，最大层地震剪力和弯矩或由转换层位置的提高而引起的最大增值一般仍发生在首层；转换层位于较高位置时，结构楼层的层间位移在转换层附近出现层间位移突变，但其数值较转换层位置较低时的相应楼层的层间位移要小许多；如果适当减小梁高，保证转换梁的抗剪承载力，并同时满足转换梁在竖向荷载和水平地震、风作用下抗弯承载力及挠度等要求，对结构的整体抗震性能是有利的，且可以进一步节约工程造价，不失为一种较好的转换结构形式；加大次梁截面和楼板厚度对转换梁的抗扭有利。