组合板的纵向受拉钢筋具有“应力超前”现象;
RC梁的屈服位移角与受拉钢筋屈服强度、截面高度有关;
The drift ratio of RC beams at yielding is related to the yielding strength of longitudinal bars and depth of beam cross section.
本文根据试验和有限元计算结果,建立了一种受拉钢筋应力控制计算公式。
Based on pile-up beam tests and finite element analysis of reinforced con-crete, a new type formula of reinforcing steel stress for reinforced concrete pile-up beam is established in this paper.
同时给出了当构件跨度不满足最小跨度要求时受拉钢筋强度折减的计算方法。
Presents the strength reduction calculating method of the tension bar when the minimum span length is not sufficed.
本文根据受拉钢筋有效影响区的概念,首先推导出一个平均裂缝间距计算公式。
Based on the concept of the effective affecting area of tensile reinforcement, in this paper, a calculating formula of average crack distance is set up first.
结果表明,截面配筋指标可综合反映混凝土强度和截面配筋率对受拉钢筋应力水平的影响;
Results indicate that reinforcement index can reflect effects of both concrete strength and reinforcement ratio on the steel stress.
考虑使受拉钢筋和受压钢筋总用量为最小,推导出了一种较为科学、简便、经济的计算方法。
Considering amount of pressurized and pulled reinforcing bars to minimum, it works out a simple and scientific method for calculating.
试验结果表明,与非预应力碳纤维布加固梁相比,预应力碳纤维布加固后混凝土梁中受拉钢筋应力幅显著降低,混凝土梁疲劳寿命明显延长。
Experimental results show that the stress amplitude of the tensioned bar is decreased remarkably and the fatigue life is then obviously increased as compared to normal strengthening method.
本文主要研究钢筋混凝土轴心受拉和受弯等构件中两根主生裂缝之间的钢筋与混凝土的结合(过去常称为粘结或握裹)与滑移关系。
The bond and slip relationship between the rebar and the concrete within a segment bounded by two primary cracks in a reinforced concrete tension member or a flexural member is studied.
在受拉区表面粘贴钢板是加固钢筋混凝土梁的一种有效方法。
Bonding a steel plate at the surface of the tensile area is an effective method to reinforce the rc beams.
另外,卸载后,在正的受拉状态下,对于桩体和锚杆钢筋,变形均有一定程度的恢复。
In addition, there is a certain recovery of deformation for pile body and anchor steel under the forward tension condition after unloading.
管顶和管底的内侧钢筋受拉,外侧钢筋受压;
When inner side reinforcing steel bar of tip and bottom pipe were pulled, outer side were pressed.
通过混凝土受压应变和钢筋受拉应变的限值得到钢筋混凝土梁、柱的变形限值。
Through the limits applied on concrete compression strain and steel tensile strain, the deformation limits on RC beams and columns are developed.
通过混凝土受压应变和钢筋受拉应变的限值得到钢筋混凝土梁、柱的变形限值。
Through the limits applied on concrete compression strain and steel tensile strain, the deformation limits on RC beams and columns are developed.
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