Based on three kinds of construction processes,which are often applied in the mega-frame of tall building,three analytical methods of the vertical load effects,which taken into account the construction process effects,are introduced,and the corresponding computational procedure is presented.

分析竖向荷载对结构的作用效应,由于巨型框架结构建筑工期漫长,以及多种不同的施工顺序等特点,应该较普通框架建筑更多考虑施工过程的影响。

Vehicle load effects were calculated and compared with that of current bridge design codes.

本文从实际交通调查入手,统计分析重载交通公路上的汽车荷载轴重、轴距和相邻汽车的纵向间距,采用皮尔逊—Ⅲ型曲线进行统计分析,得出汽车队列纵向间距与相应排列图,并计算车辆的荷载效应,与现行桥梁设计规范的荷载作用效应相比较,得出重载交通公路实际车辆荷载与规范车辆荷载之间的关系。

Study on effects of simulated space radiation environment on optical materials;

空间辐照环境对光学材料作用效应的模拟研究

The effectof the active powders relied on UPFA(ultrapulverized fly ash) on the flowability and strength of cement mortar and the slump and strength of concrete was investigated systematicly under the condition of the low waterbinder ratio and high flowability.

系统地探讨了在低水胶比和大流动性（或免振）条件下以超细磨粉煤灰（ＵＰＦＡ，ｕｌｔｒａ－ｐｕｌｖｅｒｉｚｅｄｆｌｙａｓｈ）为主的活性掺合料对胶砂流动度和强度及混凝土坍落度和强度的作用效应，为配制免振高强高性能混凝土奠定了基础。

This paper discussed the effectof some factors on characteristic value of soil and water loss,which has been completed by simulating rainfall experiment in the south region of the Loess Plateau.

在黄土高原南部地区 ,通过人工模拟降雨试验 ,探讨了各因子对水土流失特征值的作用效应。