ductile crack

Experimental study on ductility of steel fiber reinforced high-strength concrete frame joints;

钢纤维高强混凝土框架节点延性试验研究

The analysis of mechanical properties and ductility of specialshaped column structure;

对异形柱结构力学性能与延性的分析

Study on the ductility of coupling beams at coupled shear wall;

双肢剪力墙中连梁延性的研究

The quake-proof extensibility is researched by doing static load test and analyzing the energy-intensive.

针对钢筋混凝土墩柱因延性不足而常在地震灾害中遭到破坏的现象,分别采用玻璃纤维、芳纶纤维和环向箍筋3种不同材料对模型墩柱进行加固,通过拟静力试验,分析滞回耗能,从而研究其抗震延性,得出:3种不同材料的加固方法对墩柱抗震性能有不同程度的改善,其中芳纶纤维加固的墩柱平均耗能系数最大、抗震性能最好。

The hysteretic behavior, rigidity degeneration, ductibility and capability of energy dissipation are analyzed by loading the structures in two principal directions.

分析表明:剪切破坏不等肢配箍矩形框架柱较差;刚度在加荷初期退化不明显,随着斜裂缝出现和位移的增加,刚度退化程度加大;延性系数和极限转角均随加载角度的增大而增大。

It includes the introduction of prediction method,test of groups of highway bridges by artificial neural network and importing theconception of ductibility.

文章主要内容为:简要介绍目前桥梁震害预测的方法;在桥梁群体震害预测成果的基础上应用人工神经网络进行结论验证;在单体桥梁推倒分析中引入了延性的概念,并结合实例予以分析。

FRP tube confined concrete beams are developed to address the ductibility.

本文通过对 4种不同铺层矩形混杂FRP管约束混凝土组合梁进行了三点抗弯试验 ,研究了不同铺层方式对构件延性性能的影响。

Multi-objective optimal design of earthquake resistant structure considering tensility and natural vibration period;

延性自振周期的抗震结构多目标的优化设计

It introduces the anti-quaking principle of constructions,and discusses pressing rate s effect on framework column tensility,analyzes other factors which affect the tensility and concludes that the pressing rate limit is conservative and it can be broadened properly.

介绍了建筑物的抗震设计原则,探讨了轴压比对框架柱延性的影响,分析了影响框架柱延性的其他因素,得出了规范中轴压比限值多数情况下偏于保守,可适当做放宽调整的结论,可供结构设计人员考参借鉴。

It introduces the right discrimination method of frame short column in the high-rise building and brief describes some effective section forms of improving the tensility of frame column.

介绍了高层建筑框架短柱的正确判别方法,简述了几种有效提高框架柱延性的截面形式,提出短柱的抗震构造措施,以提高短柱的承载力和延性,改善短柱的抗震性能。

It is presented concisely the aftermath of earthquakes,seismic behavior in laboratories and relevant code provisions of bracings and gusset plates in the braced frame system,and conception and method for seismic design of gusset plates for ductile performance.

介绍钢结构铰接框架-支撑体系中支撑和节点板的震害、实验室的抗震性能研究、有关规范的规定和具有延性性能的支撑和节点板的设计概念及方法。

Brittle weld fractures occurred on the specimens with conventional all-welded connection,which cannot meet the ductile requirement.

对节点破坏模式和滞回曲线的比较分析表明,按现行规范设计的全焊型梁柱节点在地震作用下可能会出现连接焊缝的脆性破坏,满足不了抗震设计的延性要求;腹板开孔型节点可以有效的将塑性铰外移到距节点区较远的梁截面上,在强震作用下,其破坏形式是梁翼缘板、腹板的局部变形,满足抗震设计的延性要求;当梁腹板削弱量合适时,节点的承载力不会发生较大减小。

Modeling on fracture toughness and tensile ductility of Al-Cu-Mg alloy;

Al-Cu-Mg合金的断裂韧性与拉伸延性模拟

Model for tensile ductility of high strength Al alloys containing second particles of various sized scales;

含有不同尺度量级第二相的高强铝合金拉伸延性模型

Effects of Ag on tensile ductility of Al-Cu-Mg alloy;

Ag对Al-Cu-Mg合金拉伸延性的影响