The core steel tube applied to concrete filled square steel tubular structure and verify feasibility of this joint.
将一种带有芯钢管的不连通钢管混凝土节点用于方钢管混凝土结构，验证了这种节点的可行性。
The numerical analyze results show that the core steel tube joint applied to concrete filled square steel tubular column and reinforced concrete beam have good mechanical property, and structure beh.
数值分析表明该节点用于方钢管混凝土柱与钢筋混凝土梁的节点，具有良好的性能且受力性能与在圆钢管混凝土结构中相似。
Steel grid-concrete frame column-concrete giant column (core tube) structure is adopted and the seismic action of integral structural is analyzed.
在结构设计中采用钢网架-框架柱-巨型柱(核心筒)结构体系，通过结构整体建模分析了地震力影响。
Because the steel structure installment and the construction restrict mutually, steel frame-core tube structure in construction process causes the whole construction process lag.
钢框架-核心筒结构在施工过程中，由于钢结构安装和土建施工相互制约，致使整体施工进度滞后。
The invention comprises a handle and a drill bit, wherein the drilling bit has a trocar structure consisting of two parts, namely a sleeve and a tube core needle.
本发明包括手柄和钻头，钻头为套管针结构，包括套管和管芯针两部分组成。
Base on the calculation of an example, suggestions on range of sideway ratio of stories up and down in transfer story of frame-core tube structure with column supporting transfer beam is obtained.
通过实例计算分析，给出了带托柱式转换梁的框架-核心筒结构的转换层上、下层间侧移角比的取值范围建议。
That is to say, the core-tube suspension structure can fully be safe as well as applied while it has multiple seismic fortification lines through deliberate design.
因此，核筒悬挂结构完全可以通过精心设计使该类结构具有多道抗震防线，使悬挂结构既具有安全性又具有适用性。
The frame core-tube system is applied in the upper structure.
上部结构采用了框架-核心筒结构体系。
This paper establishes the vibratory motion equation of two kinds of core-tube suspension structure, derives rigidity matrix ;
本文针对两类核筒悬挂结构建立了振动方程，推导了刚度矩阵；
This paper establishes the vibratory motion equation of two kinds of core-tube suspension structure, derives rigidity matrix ;
本文针对两类核筒悬挂结构建立了振动方程，推导了刚度矩阵；
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