negative moment

Also, investigation shows the differences of the beams strengthened with CFRP and GFRP wrap in negative moment area.

比较了梁负弯矩区段分别采用GFRP加固和CFRP加固时其抗剪强度之差异。

Based on the relation between cracking moment and yield moment of beam end section, the functions of minimum ratios of reinforcement for tension reinforcement of the beam end in positive and negative moment areas in ensuring seismic behavior of the structure are studied in this paper.

本文以梁端截面的开裂弯矩与屈服弯矩的关系为基础，分析了梁端正、负弯矩受拉钢筋最小配筋率在保证框架抗震性能中的作用。

Fail modes are influenced by prestressing levels, length of negative moment reinforcement and fire cases.

考察了预应力度 、 负筋长度及不同受火工况对破坏形式的影响.

By the application of FEM, the critical condition is used to judge whether negative moment of the tail beam should be concerned in the stability analysis is obtained, and the corresponding structuring method is suggested to ensure the stability of beams.

通过运用有限元法的分析计算，得出了在实际设计中考虑梁端部负弯矩影响的临界条件，并提出了相应的避免出现整体失稳的构造措施。

One bare steel joint and two cruciform composite joint specimens were tested under low cyclic loading at the top of columns so that one side of the beam-to-column connections was under negative moment and the other side under positive moment.

进行了一个纯钢节点、两个组合节点的低周反复荷载试验。采用柱顶水平加载模式，连接的一侧承受负弯矩，而另一侧承受正弯矩。

Calculation suggestion about negative moment bending strength of the steel concrete composite beams

钢-砼组合梁负弯矩区抗弯承载力的计算建议

The result of numerical analysis illuminates that the stress of concrete bridge panel near interior supports is always compress stress during the construction. The prestressing of the bridge can avoid the cracks in concrete in the area with negative moment.

不同施工阶段的分析表明，设计采用的预应力方法可以使内支座处混凝土桥面板保持压应力状态，有效防止负弯矩区混凝土的开裂。

Experimental study on the fatigue property of composite beams with steel fiber reinforced self-stressing concrete in the negative moment area

钢纤维自应力混凝土叠合梁负弯矩区疲劳性能试验研究