沼气生态农业模式综合评价

为了对沼气生态农业模式结构、功能和效益进行综合定量评价,该研究结合沼气生态农业模式自身的结构和功能特点,以生态农业模式评价指标体系为基础,选择了17个指标构建了沼气生态农业模式综合评价指标体系,应用层次均权法确定了沼气生态农业模式综合评价各指标的权重,在此基础上,运用综合指数法构建了沼气生态农业模式综合评价模型。并以宝鸡市2个典型沼气生态农业模式（陇县“沼气池—厕所—畜舍—菜（果、粮）”庭院生态农业模式和千阳县“桑—蚕—双孢蘑菇—畜舍—沼气池”生态农业模式）的研究数据对模型进行了验证,评价结果与实际情况吻合,表明该研究所提出的评价指标体系和模型具有适用性。     

加快方格蔟推广步伐 进一步提高蚕茧质量

要提高认识，产政策，加强领导，认真实施，花大力气加快方格蔟推广步伐，进一步提高我省蚕茧质量。     

Experimental Study on Moment Modulation of Prestressed Frames

Based on the experimental study of two prestressed frames in redistribution of Internal force, it can be concluded that the dominating influence factors on moment modulation are the relative height of equivalent compression zone, the secondary moment, the ratio of beam rigidity to column and development of cracks in the top of columns.The secondary moment is very important in modulation of frames. Especially, the secondary moment will governing the modulation when the relative height of equivalent compression zone is large enough.     

A形排架杆件内力简化计算法

提出了一种计算A形排架杆件轴力的通用公式，应用此公式可避免求解各结点的静力平衡方程组，直接计算任意杆件的轴力．     

Hilbert空间中的算子框架恒等式

利用算子理论的方法,讨论了Hilbert空间中算子框架的一些性质,得到几个关于算子框架的恒等式。     

轻型门式刚架结构中关于稳定分析问题的探讨

针对现行《门式刚架轻型房屋钢结构技术规程》（CECS 102:2002）中关于稳定分析的部分条款,通过大量系统的有限元分析,指出上述条款中存在的问题,并提出改进的建议：1）对单跨门式刚架变截面柱计算长度系数的取值提出了修正,并扩充了取值范围;2）对带摇摆柱门式刚架变截面柱计算长度放大系数的公式提出了修正;3）对工字形截面构件腹板有效宽度系数的公式提出了修正;4）提出了新的风吸力下冷弯薄壁檩条稳定承载力计算公式.以上工作为《上海市轻型钢结构技术规程》的修订提供了理论依据.     

Inelastic Seismic Response of Ordinary Reinforced Concrete Regular Frames

With an inelastic dynamic analysis program developed by the authors, seismic response analysis of regular RC frames designed to Chinese codes in different earthquake fortification zones are carried out. The results indicate that the displacement responses of structures are improved due to the more rigorous limitation on the inter-story drift under frequent earthquakes in the revised codes. The frames in seismic-intensity-9 zone designed to the former codes and the revised codes form plastic energy-dissipated mechanisms mostly With beam hinges, which can satisfy the requirement of seismic performance expectably. The frame in seismic-intensity-8 zone designed to the former code forms a plastic energy- dissipated mechanisms mostly with column hinges and shows a risk of occurrence of story-sway mechanism, while the frame in seismic-intensity-8 zone designed to the revised codes exhibits a relatively improved seismic performance but still with excessive column hinges, which suggests a need to further increase the column moment amplification measures for this kind of frames. The frame in seismic-intensity-7 zone shows a somewhat improved seismic performance than the frames in seismic-intensity-8 zone, but the protection to columns by the seismic measures is sill insufficient, which indicates that the column moment amplification measures for this kind of frames should be enhanced further.     

地震波作用下高层框剪结构的非线性动力响应

In this paper, a method is presented for analysing the nonlinear dynamic response of R/C frame-wall structure under a strong earthguake ground motion. Based on the assumption that the bending stiffness of injured member is in a parabolic distribution, a n     

Experimental Investigation of Steel Frames with Infill Prefabricated Reinforce-Concrete Shear Walls

In order to improve seismic performance of steel frame with prefabricated reinforce-concrete infill shear walls (SFCW), the ear bar device was used in the connection between the steel frame and the infill wall. Two one-bay, two story and one-third scaled models of SFCW were tested with low cyclic load. The working performance of ear bar connection, the cracks development in infill walls and deformation performance of SFCW were investigated. And the failure mode, hysteretic behavior,stiffness degradation,deformation and ductility and energy dissipation of composite structure were analyzed. The comparison study of steel frame with prefabricated, cast-in-place and silt reinforce-concrete infill shear walls was carried out. The results show that no failure occurs in the connection between the steel frame and the infill wall because ear plates below and up the beam-to-column connections are added in the specimens, and the connection device of ear plate presents good working performance. The properly designed SFCW has good ductility.