文章依托某在建波纹钢腹板PC组合箱梁桥，分别制作了4个T w in‐PBL和角钢抗剪连接件进行静载推出试验，分析了两类连接件在各工作阶段的荷载‐滑移关系，研究了两类连接件极限承载力的主要影响因素。试验结果表明：在相同荷载水平下，T w in‐PBL连接件的滑移量远小于角钢连接件，且表现出优越的刚性特征；在极限荷载水平下，两类连接件均发生较大滑移后破坏，显示出良好的延性特征；T w in‐PBL连接件承载力的主要影响因素为贯穿钢筋直径和开孔钢板孔径，而开孔钢板厚度的影响相对较小；角钢连接件承载力的主要影响因素为钢腹板厚度，U形钢筋对角钢连接件的抗剪能力有一定的加强作用。通过实测值与理论值的对比分析，分别给出了两类连接件新的极限承载力计算公式；与其他推荐公式相比，文中所提公式的计算值与实测值最为吻合，为抗剪连接件的优化设计了提供参考。

Based on the practical project of a pre‐stressed concrete box‐girder bridge with corrugated steel web ,four Twin‐PBL shear connectors and four angle shear connectors were made respectively and then were tested in push‐out test under static loading .The load‐slip relationship in the overall ex‐perimental process and the main factors influencing the ultimate bearing capacity of the connectors were researched .The results show that at the same load level ,the slippages of Twin‐PBL shear con‐nectors are much smaller than those of angle shear connectors ,which means that Twin‐PBL shear connectors have superior rigidity .At the ultimate load level ,two kinds of connectors both have grea‐ter slippages before failure and show good ductility .T he main factors in fluencing the ultimate bearing capacity of Twin‐PBL shear connectors are the diameter of perforating rebar and the size of holes on the steel plate ,while the thickness of steel plate has little influence on the be

泰山基业（财富中心）工程在建筑标高100 m处设置转换层，型钢梁多向相交、钢筋纵横贯穿。通过分析、对比转换梁腰筋与型钢梁的连接方式，确定采用“L型”角钢连接器的方式，可以保证转换梁腰筋与型钢梁的连接质量。

Taishan family estate (wealth center) engineering set transformation layer in the place of building elevation 100 m with multi-way intersection of type steel beam and reinforced vertical and horizontal throughout. In this article, the author through the analysis and Contrast transformation of the conne-ction way of beam waist muscle and type steel beam, and dete-rmins to use the method of "L"type angle connectors, which can guarantee the connection quality of transfering the beam waist muscle and type steel beam.

驾驶模拟器应用于驾驶员训练和汽车实验，普通学生没有机会经常使用驾驶模拟器。因此，文章使用简单的角钢间螺纹连接，建立起小型驾驶模拟器的支撑架，同时在支撑架上安装驾驶模拟器的相关硬件；应用dSPACE软件、Carsim软件以及MATLAB中的Simulink实现小型驾驶模拟器的驾驶模拟以及数据采集功能。最后，以双移线试验来验证文章所设计的小型驾驶模拟器软硬件的实用性。

Driving simulators are used for pilot training and vehicle experiments, and there is no chance for ordinary students to use a driving simulator. Therefore,in this paper, a small driving simulator brace was bulit with simple threaded connection be-tween angle irons and relevant hardwares of driving simulator were installed on brace , achieved driving simulation and data ac-quisition function of small driving simulator with Simulink of software DSPACE, Carsim and MATLAB . Finally, verified the prac-ticality of the hardwares and softwares of the small driving simulator designed in this paper with double lane-change test.

为研究后张无黏结装配式框架梁柱节点的抗震性能，提出了一种节点骨架曲线上特征点的计算方法。首先，基于弹性梁的理论和刚体转动原理，详细分析了后张无黏结节点梁端位移的组成，并给出计算位移的通用公式。然后，根据梁端截面在不同临界点（开裂点、线性极限点、混凝土核心区压碎点）的受力特点，计算了各特征点对应的荷载。最后，根据后张无黏结角钢连接节点的转动特征以及角钢在反复拉压荷载下的恢复力模型，得到骨架曲线上特征点的简化计算公式。计算结果与低周往复荷载下节点试验结果吻合较好，由此证明了计算的合理性和正确性。结果表明，该计算方法基于合理的力学概念，可较为准确地预测节点骨架曲线，具有计算简便、适用性广的优点。

In order to study the seismic bearing capacity of unbonded post-tensioned precast concrete frame beam-to-column joints,a calculation method for the skeleton curve of joints is proposed. First,based on the elastic beam deflection and rigid body rotation theory,the composition of dis-placement of the unbonded post-tensioned joints is analyzed and the common formulas are given. Then,according to the loading features of the section at the beam end at different critical points (crack points,linear critical points,crush points of the core concrete),the corresponding loads are calculated.Finally,according to the rotation features and the hysteretic model of the angle of the un-bonded post-tensioned steel angle joints,the simplified formulas for the characteristic points of the skeleton curve are deduced.The calculation results agree well with the experimental results under re-versed cyclic loading,proving the rationality and correctness of the calculations.The results show that base

为了研究新型结构构件钢板笼混凝土短柱的轴心受压承载力，在已有受约束混凝土本构关系基础上，根据箍筋约束混凝土的拱作用原理，对钢板笼套箍约束混凝土承载力进行分析，推导出钢板笼混凝土轴压短柱的承载力公式，并将计算结果与试验数据进行对比。研究结果表明：钢板笼对混凝土的横向约束与钢管混凝土相似，纵向连接成角钢约束力强，模型计算结果和试验数据吻合较好。

Based on the existed concrete constitutive relationship and arch action principle of stirrups confined concrete. The prefabricated cage system ferrule form and spacing constraints concrete bearing capacity are investigated.The formu-la of prefabricated cage system bearing capacity of axially loaded concrete is proposed,and the calculation results are com-pared with experimental data.The result shows that the lateral confinement of prefabricated cage system for reinforcing concrete is similar to concrete?filled steel tube,the confinement of angle steel connected longitudinally is strong,and the calculation results agree well to experimental data.