反复试验

In connection with the application of concrete-filled steel tubular column in the engineering practice in this country at present,a new fashioned connection in framed structure of concrete-filled square steel tubular column with reinforced concrete beam was proposed,being a connection of concrete beam with non-through hidden steel corbel steel tubular column filled with concrete.

结合我国现行钢管混凝土柱在实际工程中的应用状况，提出了用于方钢管混凝土柱-钢筋混凝土梁框架结构的新型连接节点形式非穿心暗钢牛腿方钢管混凝土柱与混凝土梁节点，采用了X型加载试验方案，制作了1∶3的试验模型，进行了低周反复荷载作用下的试验研究，得到了相关的钢筋应力应变发展规律和相应的滞回曲线，通过对试验结果节点破坏的机理分析，提出了进一步的改进措施。

A comparison between the numerical analysis by arc-length method and the test results shows good agreements in ultimate loads and moment- cubature relational curves.

进行了单调加载和反复加载截面的非线性分析，并与试验进行了对比，理论分析和试验结果吻合良好。

C. frame joint column specimens for appending layer with 1: 1 size which are subjected to slow frequency cyclic horizontal load with constant axial force are carried out, and the analyses of the test results in theory are also given out.

通过两个足尺的典型加层框架节点在低周反复水平荷载下的试验对混凝土加层框架节点的抗震性能进行了试验研究。

In this paper, the following experimental and theoretical investigations have been carried out: friction materical behavior tests, structure model experiments under low frequency cyclic and reversed loading, structure model dynamic experiments on shaking talbe, researches on dynamic analysis method and engineering design method for braced frame structure with friction control.

对二级摩擦控制支撑框架结构进行了摩擦材料的试验研究、低周反复荷载下结构模型的试验研究、振动台的动力试验研究、结构动力分析方法的研究以及摩擦控制支撑框架设计方法的研究。

In the cold head office and the arrangement of vascular elbow gold - iron thermocouple thermometer, in the pulse tube hot end, the hot end of regenerator arrangement of pressure sensors and data acquisition.

试验系统还包括抽真空系统，数据采集系统等。4 试验结果及分析初步试验是在压缩机充气压力为1.6MPa，工作频率为2.5Hz的条件下进行的，经过反复多次试验，我们的新结构的四阀型脉管制冷机能够达到的最低温度为72K，图4示出了最佳小孔开度下的制冷机的降温曲线。

Firstly, the paper carried out test study base on the pseudo-static test under horizontal loads on four two-spanned model members of FSMRCSS, including three 1/2-scaled two-storeyed models and one 1/3-scaled three-storeyed model. By the test study, the paper analyzed the test results, including analysis on mechanical property of the constructure under vertical loads, and failure mode, deformation capacity, aseismic performance under horizontal loads and constant vertical loads. The paper also compared LFSWSUMS with FSMRCSS on aseismatic property.

本文首先对三个两跨两层和一个两跨三层的底部大空间框支密肋复合墙结构的1／2和1／3比例模型进行伪静力试验研究，通过对底部大空间框支密肋复合墙结构在竖向荷载及与水平低周反复荷载共同作用下的受力性能的试验研究，探讨了结构的变形性能、滞回耗能和破坏形态，并与框支砌体结构进行对比分析。

How to ensure this new structure to be in elastic state under frequent earthqu ake, be mendable under design earthquake and not collapse under infrequent earthquake, especially the last item, is the problem to be solved imminently in engineering field. Center around this problem, 5 aspects of investigation are carried out as following:(1) The experiment of seismic performance of ASCCs in this new frame structure has not been reported, in order to study this problem, 9 ASCC specimens with shear steel plate are tested subjected to the horizontal low cyclic loading, in which, the shear span ratio is 3 and axial compression ratio is different. The hysteretic curves of 9 specimens are obtained. The seismic performance indexes such as energy dissipation, stiffness degradation, strength degradation, skeleton curves and ductility of this kind of column are acquired, and the seismic fortification measures including ultimate values of axial compression ratio under different seismic degree are suggested.

1新型框架结构中所采用的角钢混凝土柱抗震性能的试验研究尚未见报道，针对这一问题，本文进行了9根剪跨比为3、不同轴压比、采用钢板箍的角钢混凝土柱在水平低周反复荷载作用下的试验研究，获得了9根试验柱的滞回曲线，考察了该类柱的耗能、刚度退化、抗力衰减、骨架曲线及延性等抗震性能指标，建议了角钢混凝土柱在不同抗震等级下的轴压比限值等抗震构造措施。

The main contents are as follows. By the experiments of two joints under low-reversed cyclic loading, the paper analyzes the failure pattern, energy dissipation, ductility and cracking in the joint cores, evaluates the seismic performances and anti-crack behaviors of the joints, and deduces the anti-crack formula of the subassemblage and prestressed frame joint. Through the finite element analysis software Ansys , the paper analyzes the specimens nonlinearly, and the theoretical analysis results are well consistent with those of the experiment.

主要内容包括：通过两榀节点在低周反复荷载作用下的试验，分析其破坏形态、耗能能力、延性性能和节点核芯区裂缝开展情况，评估节点的抗震性能和抗裂能力，推导出预压装配式框架节点的抗裂验算公式；并运用Ansys对试验中的节点进行了非线性分析，计算结果与试验结果基本吻合。

The results show sheafing strength of wood glued-product produced by adhesive prepared with the optimal formulation of six starch-based API wood adhesive can completely meet requirement of JIS K6806 and each property indices of adhesive satisfy demand for the practical process technology.

其次，以复合变性玉米淀粉、乙二酸、聚乙烯醇、P-MDI为影响因素，按照日本JIS K6806标准中关于水性高分子-异氰酸酯木材胶粘剂胶接木材时的不同耐水性要求，通过正交试验，分别优化出Ⅰ型、Ⅱ型中Ⅰ、Ⅱ类的常态胶接、热水浸渍、反复煮沸胶接强度的六种淀粉基API的配方，并在对实验结果进行了验证性试验的基础上，进行了工业化生产试验。

Friday, rubber, plastics, rubber adhesive tape test series grinding test machine, wear test machine, wear testing machine, folding machine, foam compression stress test machine, foam plastic repeated compression test machines, test material removed machine, Determination of the plastic melt index machine, impact testing machine, heating distortion temperature testing machine, falling ball impact test machine, rigid plastic drop hammer impact test machine, plastic film drop hammer impact testing machine, high temperature ashing furnace, temperature testing machine tape retention, Tape retention test machine, the beginning of sticky tape ball test machine, color device, industrial projectors, coordinate measuring instrument.

五、橡胶、塑胶、胶带试验系列橡胶胶磨试验机、磨耗试验机、耐磨试验机、耐折试验机、泡棉压缩应力试验机、发泡塑反复压缩试验机、试料磨平机、塑胶熔融指数测定机、冲击试验机、加热变形温度试验机、落球冲击试验机、硬质塑胶落锤冲击试验机、塑胶膜落锤冲击试验机、高温灰化炉、恒温胶带保持力试验机、胶带保持力试验机、胶带初粘性滚球试验机、色差仪、工业投影仪、三座标测量仪。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。