三主桁连续钢桁拱桥整体节点有限元分析

东平水道桥是武广高速铁路上一座四线铁路桁架拱桥,主跨结构为99m+242m+99m的三主桁连续钢桁拱,主桁采用整体节点形式,三主桁内力分析表明中桁处受力最大。节点板联结着主桁、腹杆、横梁、平联等各类杆件,结构及受力均较复杂,节点应力分布是设计中的关键问题之一。文章利用有限元程序对其特殊位置节点板进行应力分析,研究了其应力分布及传力特性,为设计提供依据和给同类桥梁提供参考。研究表明通过调整节点构造和板件刚度,节点具有足够的受力与传力功能。     

开敞式泄水闸稳定应力计算

对某开敞式泄水闸进行了整体抗滑稳定和基底应力计算,计算结果表明泄水闸的结构布置是合理的。     

预制桩填土复合地基的设计与施工

论述了小预制方桩与压实填土复合地基在大型污水处理池中的设计与施工应用情况，提出了粘性填土分层压实、具有不小于80kPa承载能力的观点，如桩端土层良好，则可大幅度提高复合地基的强度。     

国有资源开发型企业员工压力状况研究——以中国石油长庆油田公司为例

文章以中国石油长庆油田公司为例，对大型资源开发企业员工压力状况和压力源进行实证分析，研究发现影响员工满意度的压力源是“环境条件与员工预期”“家庭关系”和“工作支持与工作决策参与度”三个因素，并对形成这一压力的原因进行了讨论，提出了缓解压力的对策建议。     

浅议提高学生英语阅读情趣

当今世界第一位的挑战 ,是人才素质的竞争 ,而英语素养的高低是人才素质的重要方面。凡是较成功的英语学习者几乎都得益于英语阅读。如何提高学生英语阅读的情趣和品位 ,已成为很多教师普遍关注的问题     

考虑表面效应板状微结构的力学行为进展

该文综述了纳米力学研究中的表面效应与板状微结构力学行为研究现状和进展,并作了一定的评价,介绍了最新的表面效应研究理论模型和方法,并对未来表面效应的理论研究进行了预测和展望。     

The Coordination Role of Stress Tests in Bank Risk‐Taking

We examine whether stress tests distort banks' risk‐taking decisions. We study a model in which a regulator may choose to rescue banks in the event of concurrent bank failures. Our analysis reveals a novel coordination role of stress tests. Disclosure of stress‐test results informs banks of the failure likelihood of other banks, which can reduce welfare by facilitating banks' coordination in risk‐taking. However, conducting stress tests also enables the regulator to more effectively intervene banks, coordinating them preemptively into taking lower risks. We find that, if the regulator has a strong incentive to bail out, stress tests improve welfare, whereas if the regulator's incentive to bail out is weak, stress tests impair welfare.     

Financial stress,sovereign debt and economic activity in industrialized countries: Evidence from dynamic threshold regressions

We analyze how the impact of a change in the sovereign debt-to-GDP ratio on economic growth depends on the level of debt, the stress level on the financial market and the membership in a monetary union. A dynamic growth model is put forward demonstrating that debt affects macroeconomic activity in a non-linear manner due to amplifications from the financial sector. Employing dynamic country-specific and dynamic panel threshold regression methods, we study the non-linear relation between the growth rate and the debt-to-GDP ratio using quarterly data for sixteen industrialized countries for the period 1981Q1-2013Q2. We find that the debt-to-GDP ratio has impaired economic growth primarily during times of high financial stress and only for countries of the European Monetary Union and not for the stand-alone countries in our sample. A high debt-to-GDP ratio by itself does not seem to necessarily negatively affect growth if financial markets are calm.     

港口起重机械金属结构寿命评估

起重机金属结构的寿命评估对于港口起重机管理工作具有重要意义,通过现场应力测试采集得到的数据导入自主研发的《起重机金属结构寿命评估系统》,利用Miner线性累积损伤理论可对起重机构件的疲劳裂纹萌生寿命进行评估计算,运用断裂力学和损伤容限设计理论则可得到裂纹的扩展寿命,并以此为根据制定出裂纹巡检方案。     

西方工作压力研究概况

关于工作压力的研究,西方已经进行了几十年并取得不少成果.我国该领域的研究起步较晚,但也逐渐成为社会焦点.本文从工作压力的定义、工作压力源、工作压力的测量、工作压力的理论、工作压力的后果和工作压力的应对几个方面,来介绍西方工作压力研究的已有成果,以资我们的研究工作借鉴.