湖南大学学报（自然科学版）
湖南大學學報（自然科學版）
호남대학학보（자연과학판）
Journal of Hunan University (Natural Sciences)
2015年
9期
8-13
,共6页
剪重比%高层建筑%楼层最小地震剪力系数值%地震影响系数最大值%结构基本自振周期
剪重比%高層建築%樓層最小地震剪力繫數值%地震影響繫數最大值%結構基本自振週期
전중비%고층건축%루층최소지진전력계수치%지진영향계수최대치%결구기본자진주기
seismic shear-gravity ratio%tall buildings%the minimum seismic shear gravity%the maxi-mum value of horizontal seismic influence coefficient%basic structural period
介绍了美国等国规范有关剪重比的规定，以及我国《建筑抗震设计规范》(GB 50011—2010)和《高层建筑混凝土结构技术规程》(JGJ 3-2010)中最小剪重比提出的背景，对高层结构满足现行规范剪重比要求的结构自振周期进行了分析。根据现行抗震规范的要求将地震影响系数曲线分为两种情况，又将每种情况下的地震影响系数曲线分为5段，分析了每段的结构自振周期与楼层最小地震剪力系数值之间的关系，最后对结果进行合并，得到了满足规范要求的楼层最小地震剪力系数值的结构基本周期，根据结构的基本自振周期便可以判断该结构的剪重比是否能够满足规范剪重比的要求。通过工程实例对分析结果进行了验证。
介紹瞭美國等國規範有關剪重比的規定，以及我國《建築抗震設計規範》(GB 50011—2010)和《高層建築混凝土結構技術規程》(JGJ 3-2010)中最小剪重比提齣的揹景，對高層結構滿足現行規範剪重比要求的結構自振週期進行瞭分析。根據現行抗震規範的要求將地震影響繫數麯線分為兩種情況，又將每種情況下的地震影響繫數麯線分為5段，分析瞭每段的結構自振週期與樓層最小地震剪力繫數值之間的關繫，最後對結果進行閤併，得到瞭滿足規範要求的樓層最小地震剪力繫數值的結構基本週期，根據結構的基本自振週期便可以判斷該結構的剪重比是否能夠滿足規範剪重比的要求。通過工程實例對分析結果進行瞭驗證。
개소료미국등국규범유관전중비적규정，이급아국《건축항진설계규범》(GB 50011—2010)화《고층건축혼응토결구기술규정》(JGJ 3-2010)중최소전중비제출적배경，대고층결구만족현행규범전중비요구적결구자진주기진행료분석。근거현행항진규범적요구장지진영향계수곡선분위량충정황，우장매충정황하적지진영향계수곡선분위5단，분석료매단적결구자진주기여루층최소지진전력계수치지간적관계，최후대결과진행합병，득도료만족규범요구적루층최소지진전력계수치적결구기본주기，근거결구적기본자진주기편가이판단해결구적전중비시부능구만족규범전중비적요구。통과공정실례대분석결과진행료험증。
The requirements of shear-weight ratio in the codes of United States and some other countries were in-troduced.The regulations and related contents regarding the minimum story shear for the seismic design of buildings issued in Chinese Code for Seismic Design of Buildings (GB 50011 -2010)and Technical Specification for Concrete Structures of Tall Buildings (JGJ 3-2010)were briefly described.A comparison between Chinese code and other seismic design codes was made.The basic structural period of tall structures satisfying shear-gravity ratio of the code was introduced.Based on the requirement for seismic shear-gravity ratio,the curves of seismic influence coefficient can be divided into two situations.In either situation,the curves of seismic influence coefficient can be divided into five sections.In each section,the relationship between structural period and the minimum seismic shear gravity ratio was introduced.The calculation results of the basic structural period satisfying the base shear factor issued in the code were obtained.It can be easy to determine the basic structural period satisfying the base shear factor issued in the code by using this table.The analysis result was checked with some engineering examples.
