建筑技术在相邻关系司法裁定中应用探讨

我国现行法规在调整相邻关系中确定的都是原则性的指导规定,对相邻权的界定缺乏具体的技术裁定标准。为了给相关司法人员界定相邻权提供一定的参考和借鉴,文章介绍了相邻关系问题所涉及的建筑技术内容,主要给出了各相邻关系类别所对应的建筑设计规范和标准;并以相邻日照采光权纠纷为例,探讨建筑技术在相邻关系纠纷司法裁定中的具体应用。结果表明,依据相关国家标准,结合现场勘察,合理运用建筑技术知识可以实现对相邻权的科学界定。福建省软科学计划项目(2015R0078

Calculation of Ultimate Shear Strength of High Strength Concrete Column Reinforced with Concrete Filled Steel Tube

介绍了以圆钢管为钢骨的劲性高强混凝土柱的剪切性能试验的试验概况,在此基础上研究了它的斜截面承载力计算方法。在计算时,采用了将构件分成几个独立的抗力机构,相互叠加构成构件抗力体系的计算方法的计算模型。进而利用剪切性能试验得到的数据结果进行参数回归,得到以圆钢管为钢骨的劲性高强混凝土柱的斜截面承载力计算公式。General situation about shear experiments of high concrete columns reinforced with concrete filled steel tube is presented,and method for calculating ultimate shear strength of the columns is discussed based on the experimental results.Shearing resistant mechanism of the columns can be made up of several simple individual shearing resistant mechanisms,and then the formula for calculating ultimate shear strength can be established by superposing the actions of these shearing resistant mecnanisms.In the further analysis,the unknown parameter in the formula is regressed using the test data of shear experiments

低屈服点钢剪切耗能板抗震性能试验

鉴于目前对国产低屈服点钢材生产剪切板阻尼器的研究和应用还没有系统开展,采用宝山钢铁股份有限公司自主研发生产的低屈服点钢LYP160,设计制作了3种不同尺寸的剪切板阻尼器,开展其低周往复循环荷载试验,并在试验基础上,对影响剪切板耗能性能的因素进行了分析.研究结果表明:由国产LYP160制成的剪切耗能板在低周反复荷载作用下,滞洄曲线饱满,具有良好的耗能性能;经过合理设计和施工,该剪切板可以作为消能阻尼器应用于实际工程

EXPERIMENTAL STUDY ON THE TIME-DEPENDENTBEHAVIOR of SHORT STEEL-REINFORCED CONCRETE COLUMNS UNDER SUSTAINED AXIAL LOADING

钢骨混凝土柱结构在过去几十年间已得到广泛的运用。但是目前关于这种柱结构在长期荷载作用下由于徐变和收缩引起的与时间相关的力学性能研究还开展得很少。该文开展了钢骨混凝土短柱的长期轴向荷载试验研究,还进行了这些柱的极限承载力破坏试验。试验监测了由徐变和收缩引起的柱的轴向长期变形。基于该实测曲线的分析表明,采用ACI 209r-92的收缩模型和CEb-fIP90的徐变模型,利用龄期调整有效模量法可以较好地模拟钢骨混凝土柱在长期轴向荷载作用下的变形发展。经历了长期加载后的试验柱的极限承载力破坏试验还表明,长期轴向荷载对柱的轴压承载力没有显著影响。Steel-reinforced concrete(SRC) columns have been widely used over the past few decades.However, very limited research has been conducted on the time-dependent behavior of these columns caused by creep and shrinkage under sustained loadings.This paper provides an experimental study on the long-term behavior of short SRC columns under sustained axial loadings and their ultimate axial bearing capacity.Long-term axial deformation due to shrinkage and creep of the concrete were recorded.Based on test results, time-dependent analysis of the SRC columns under sustained axial loadings using the age-adjusted effective modulus method was proved to be effective by employing the ACI 209R-92 model for the prediction of shrinkage and the CEB-FIP90 model for creep.The ultimate strength of the columns after long-term loading was also determined and results showed that the axial sustained load had no significant effect upon the axial compressive strength of SRC columns.国家自然科学基金项目(50908197); 福建省自然科学基金项目(2009J05135

估计葡萄糖处置率与冠状动脉狭窄严重程度关系的横断面研究

目的探讨估计葡萄糖处置率（eGDR）与冠心病（CAD）严重程度的关联。方法采用以医院为基础的横断面研究设计，纳入因疑似冠心病而接受冠状动脉造影检查的患者共1 258人（平均年龄：62（53~68）岁；男性占53.9%）。按照eGDR公式计算胰岛素抵抗水平（IR）：eGDR =21.158 - ［0.09×腰围（WC， cm）］ - ［3.407×高血压（hypertension， 是/否）］ - ［0.551×糖化血红蛋白（HbA1c， %）］。根据eGDR三分位数对研究对象进行分组。冠心病的严重程度由狭窄血管的数量决定： 无明显CAD组（所有冠脉狭窄均<50%，n=704），单支血管CAD组（只有一条受累的主要冠脉狭窄≥50%，n=205），多支血管CAD组 （两条或两条以上受累的主要冠脉存在狭窄≥50%，n=349）；以无明显CAD作参照，采用多因素logistic回归模型分析eGDR与CAD严重程度之间的关联。采用限制性立方样条分析eGDR和CAD在整个eGDR范围内的线性关联。采用亚组分析评估不同糖尿病状态下eGDR和CAD严重程度之间的关联。受试者工作特征（ROC）曲线分析eGDR对提高CAD筛查模型的价值。结果eGDR降低与CAD严重程度的风险增加显著相关。（OR：2.79；95%CI：1.72~4.55；P<0.001）。多因素logistic回归模型中，eGDR最低分位（T1）的个体患多支血管CAD的风险是eGDR最高分位（T3）的2.79倍。（OR：2.79；95%CI：1.72~4.55；P<0.001）。限制性立方样条分析显示，eGDR与CAD以及多支血管CAD之间存在负线性关联（P-linearity<0.05）。在非糖尿病患者中，与参照组（T3）相比，T1组患CAD和多支血管CAD的风险显著增加，OR分别为1.42 （95% CI：1.00~2.01；P<0.05）和1.86 （95%CI：1.21~2.86；P<0.05）。而在糖尿病患者中未发现此关联有统计学意义（P>0.05）。ROC曲线分析，eGDR加入到CAD传统筛查模型中时，AUC、IDI、NRI的结果显示，模型对CAD和多支血管CAD的筛查有显著改善。结论eGDR与CAD及CAD严重程度呈负相关。eGDR作为一种无创且易于获取的非胰岛素测量指标，具有筛查大规模人群中CAD严重程度的潜在价值

NUMERICAL ANALYSIS OF LOAD-MOMENT INTERACTION DIAGRAM FOR HIGH STRENGTH CONCRETE COLUMN REINFORCED WITH CONCRETE FILLED STEEL TUBE

介绍了以圆钢管为钢骨的劲性高强混凝土柱的抗震性能研究的试验概况,在此基础上采用条带有限元法进行了弯矩-轴力相关曲线的数值分析,计算结果与试验结果大致吻合,可以用于确定该类柱在偏压状态下的极限承载力。The general situation of earthquake-resistant behavior experiments of high concrete columns reinforced with concrete filled steel tube is presented.Based on the experimental results,the numerical analysis of load-moment interaction diagram for the columns is completed using strip finite element analysis method.The calculation results are in basic agreement with those of the experimental values,so the numerical analysis method can be used to determine the ultimate bearing capacity of the columns under eccentric compression

Ultimate Strength of High Strength Concrete Columns Reinforced with Concrete Filled Steel Tube Under Axial Compression and their Reliability Analysis

为了探求一个合理的设计公式来计算带圆钢管的劲性高强混凝土柱在轴压下的极限强度,完成了包含13个短柱试件在内的轴心受压试验以研究该类柱在轴压下的破坏模式和极限强度.试验结果表明,在荷载作用下,直到荷载接近极限值时,柱中钢管、纵向钢筋以及混凝土三者之间的纵向应变基本上是协调的,计算结果与试验结果吻合良好,因此可以采用叠加原理来计算带圆钢管的劲性高强混凝土柱在轴压下的极限承载力.此外,分析了该极限承载力计算公式的可靠度水平.分析结果表明,该承载力计算满足GB50068-2001对构件可靠指标的要求.This paper aims at developing a rational design formula to predict the ultimate strength of high strength concrete columns reinforced with concrete filled steel tube (HSCCRST) under axial compression. In order to investigate the failure mode and the ultimate strength of the columns under axial compression, experimental tests of 13 specimens under axial compression were performed. Test results showed that the longitudinal strain of the steel tube, the longitudinal reinforcement, and the concrete in the column were all compatible under loading until the load applied was close to the ultimate load. Therefore, the ultimate strength of HSCCRST could be calculated in the principle of superposition. In addition, the reliability level of the columns under axial compression designed following the proposed formula was investigated. Analysis results indicated that the reliability indexes of the columns designed following the proposed formula satisfied the demand of Unified Standard for Reliability Design of Building Structures (GB 50068-2001), National Standard of the People's Republic of China.国家自然科学基金资助项目(50378034

Experimental Research on Seismic Performances of Nonstructural Concrete Partitions with Dowel-bar Connectors

框架结构中的现浇混凝土非承重墙体与主体框架之间通常采用销栓式钢筋连接设计成柔性连接的方式.已有研究表明,如果采取合理的销栓式钢筋连接节点的构造措施,现浇混凝土非承重墙体可以具备良好的变形能力并能够发挥积极的耗能减震作用.在此基础上,本文开展了3个墙体足尺试件的低周水平反复荷载试验,探讨了相关设计参数变化对墙体抗震性能的影响,研究结果进一步完善了采用销栓式钢筋连接的混凝土非承重墙体的设计方法.When cast-in-place concrete panels are used as non-structural partitions in buildings of moment-resisting frame structural system,they are often designed to be isolated from frames by using dowel-bar connectors.It has been indicated by existing research that the cast-in-place concrete non-structural partitions could provide desirable deformation capacities and additional energy dissipation capabilities if appropriate dowel-bar connecting details were provided.In this paper,three full-scale reinforced concrete panels were tested under cyclic lateral loading to study the influence of changed design parameters on their seismic performances.From the test,some valuable information was obtained in improving the design method of non-structural concrete partitions with dowel-bar connectors.日本国土交通省建設技術開発助

Long-term Deformations of Steel-reinforced Concrete Columns Under Sustained Axial Loads

钢骨混凝土柱结构已被广泛应用在高层建筑结构中,但是,关于这类柱结构在长期荷载作用下,由于混凝土的徐变和收缩引起的与时间相关的力学特性的研究还很少.开展了钢骨混凝土短柱在长期轴向荷载作用下相关特性的试验研究,获得了由于混凝土的收缩和徐变导致的长期轴向变形曲线.基于该实测曲线的分析表明,采用ACI 209的收缩模型和CEb-fIP90的徐变模型,利用龄期调整有效模量法可以较好地模拟钢骨混凝土柱在长期轴向荷载作用下的变形发展.Steel-reinforced concrete(SRC)columns have been widely used over the past few decades.However,very limited research has been conducted on the time-dependent behavior of these columns caused by creep and shrinkage under sustained loading.This paper presents the results of an experimental study of the long-term behavior of short SRC columns under sustained axial loading.Longterm axial deformations due to shrinkage and creep of the concrete were recorded.In analysis of the test results,time analysis of the SRC columns under sustained axial loads using the age-adjusted effective modulus method was proven to be suitable by employing the ACI 209model for prediction of shrinkage and the CEB-FIP90model for the prediction of creep.国家自然科学基金(50908197

Long-term deformations of steel-reinforced concrete columns under sustained axial loads

Conference Name:3rd International Conference on Civil Engineering, Architecture and Building Materials, CEABM 2013. Conference Address: Jinan, China. Time:May 24, 2013 - May 26, 2013.Steel-reinforced concrete (SRC) columns have been widely used over the past few decades. However, very limited research has been conducted on the time-dependent behavior of these columns caused by creep and shrinkage under sustained loading. This paper presents the results of an experimental study of the long-term behavior of short SRC columns under sustained axial loading. Long-term axial deformations due to shrinkage and creep of the concrete were recorded. In analysis of the test results, time analysis of the SRC columns under sustained axial loads using the age-adjusted effective modulus method was proven to be suitable by employing the ACI 209 model for prediction of shrinkage and the CEB-FIP90 model for the prediction of creep. ? (2013) Trans Tech Publications, Switzerland