The standard of steel bar ' s intensity has been marked in " code for design of concrete structures " of china , but the standard of steel bar ' s ductility has not . the problem should be solved 我国《混凝土结构设计规范》已对钢筋强度提出了统一的标准，但对于钢筋延性尚未作出明确规定，可见对钢筋延性提出统一的评定标准是亟待解决的问题。
Based on the current structure design codes , a one tenth scaled 2 bays , 3 - stories model of concrete filled steel tube ( cfst ) column frame structure is designed and manufactured , and tested on the shaking table 摘要基于现行结构设计规范，设计制作了一榀1 / 10比例的单跨、两开间八层钢管混凝土柱钢梁框架结构模型，对其进行了模拟地震振动台试验。
9 . some detail requirements , such as the maximum axial load ratio in columns , the minimum of confined transverse reinforcement within yield hinge regions and so on , are also proposed to modify chinese code ( gbj1o - 89 ) 本文还讨论了现行《混凝土结构设计规范》 （ gbj10 ? 89 ）关于轴压比限值及柱端加密区约束箍筋最小要求等构造方面存在的问题，提出了相应的修正建议。
The correlative item of 《 code for design of concrete structures 》 ( gb50010 - 2002 ) points out that when the slenderness ratio of the member is greater than 30 the method of - l _ 0may lead great error , should adopt model column method 现行《混凝土结构设计规范》 ( gb50010 - 2002 )条文说明指出当柱长细比大于30时偏心距增大系数方法( - l _ 0法)会有较大的误差,宜采用模型柱法分析。
Contradiction and unity relation in concrete structural design is put forward in the paper , including safety of structure and economy ; strength of material and deformation ; concrete protective coating and safety durability 摘要通过对混凝土结构设计规范的理解，提出了结构安全与经济、材料强度与变形、混凝土保护层与结构安全性、耐久性等因素的对立统一关系对结构设计的影响。
Hrb400 steel bar , which is called new grade steel bar , has been defined the leading steel bar using in building structures by code for design of concrete structures ( gbj 5002 - 2002 ) . it has been used widely in these years Hrb400级钢筋自2002年被新颁布的《混凝土结构设计规范》 ( gb50010 - 2002 ) (文中简称规范)作为钢筋混凝土结构的主导钢筋以来,已被广泛地应用在建筑工程中。
But the research is not a patch on the needs of structure form and diversification function . as far as those towers that have vagary sculpt , the criterion of high - rising structure design can not offer veracious reference basis 但是对于塔架的研究远远比不上其结构形式及功能多样化的需求，使得根据以往研究得到的高耸结构设计规范对于许多造型独特的塔架结构不能提供准确的参考依据。
The simplified model took into account the working of the steel tube , and the calculating method of local compression strength of concrete in tube corresponded to that recommended in the chinese code for design of concrete structures 简化模型考虑了钢管参与工作，管内混凝土局部承压强度计算方法与我国混凝土结构设计规范保持一致。建立了矩形钢管混凝土桁架节点非线性有限元分析模型。
However , even the newly promulgated national code on reinforced concrete structure gives no items on slw design , and no previous horizontal cyclic loading tests on slw structure has ever been published domestic or oversea 然而，新近颁布的混凝土结构设计规范和现行的钢筋混凝土高层建筑行业标准都没有关于短肢墙设计的具体条文；国内外也没有发现有关短肢墙结构体系低周反复试验的报导。
In the result , the tensile stress which is produced because of temperature gap has been decreased or eliminated entirely . combined with some other measures , the construction and design for non - expansion joint of super - length structure has been carried out successfully 从而不仅满足了钢筋混结构设计规范： “如有充分依据和可靠措施，伸缩西安建筑科技大学硕士学位论文缝最大间距可适当增大”的要求。
