混凝土非结构性裂缝的产生及防治

分析了过宽的裂缝对混凝土结构的危害，介绍了混凝土裂缝的分类，从收缩裂缝、温度裂缝、沉降裂缝三方面，研究了非结构性裂缝的产生与防治，以更好地解决混凝土裂缝的问题，提高建筑物的质量。     

沥青混凝土路面裂缝原因分析及防治措施

针对沥青混凝土路面的裂缝问题，从横向裂缝、纵向裂缝、网状裂缝和反射裂缝四方面，就其产生裂缝的原因进行了分析，提出了相应的预防与治理措施。     

混凝土裂缝的成因与处理

介绍了混凝土工程中常见的荷载裂缝、温度裂缝、干缩裂缝、塑性收缩裂缝，分析了各种裂缝的产生原因，并论述了其相应的预防措施，阐明了裂缝的修补措施，最终保证建筑物和构件的安全与稳定。     

钢筋混凝土结构裂缝预防分析与处理措施

介绍了混凝土早期裂缝可分为塑性收缩裂缝、沉降裂缝及收缩裂缝，对引起钢筋混凝土结构裂缝产生的原因作了深入分析，并提出了出现裂缝的预防措施及裂缝的治理办法。     

现浇混凝土楼板裂缝的控制

从混凝土振捣方面分析了混凝土终凝前裂缝的产生原因，从干缩裂缝、结构裂缝、温度裂缝、施工缝、板的配筋设计等方面分述了混凝土终凝后产生裂缝的原因，同时提出了控制措施，防止出现裂缝。     

新建沥青路面裂缝控制综述

分别对施工裂缝、收缩裂缝、沉陷性裂缝等新建沥青路面裂缝的原因进行了分析，并介绍了各种裂缝的特征，提出了相应的预防措施，以确保沥青路面质量，保证道路行车畅通，从而充分发挥沥青路面的经济效益。     

沥青路面裂缝的形成及防治

介绍了沥青路面的优点，结合沥青路面裂缝的形式，分析了沥青路面裂缝产生的原因，并从设计、材料、施工、超载等方面提出了沥青路面裂缝的预防措施，同时阐述了裂缝的治理措施，以最大限度地解决沥青路面的裂缝问题，从而确保沥青路面的使用寿命。     

混凝土裂缝的产生及控制措施

介绍了混凝土的特性，阐述了混凝土裂缝的种类，从收缩裂缝、温度裂缝、水化热裂缝等方面论述了裂缝的产生原因及控制措施，提出只有不断总结经验，才能有效控制裂缝的产生。     

混凝土裂缝成因及防治

从温度裂缝、收缩裂缝、荷载裂缝等方面分析了混凝土裂缝的成因，阐述了裂缝的鉴别方法，介绍了控制裂缝的各种措施，以确保建筑物的安全使用。     

砌体结构裂缝成因与控制

从温度裂缝、干缩裂缝、地基不均匀沉降裂缝、结构裂缝等方面分析了砌体结构建筑墙体裂缝产生的原因，详细地阐述了防止墙体开裂的具体构造措施，以解决砌体结构的裂缝问题，从而提高工程质量。     

Psychological distress and project success: The moderating role of employees’ resilience and mindfulness

The psychological distress of the employees is a global issue that affects project success in many organizations. Based on the conservation of resources theory, our study highlights the importance of employees’ psychological resources, specifically resilience and mindfulness, to mitigate the detrimental effects of psychological distress on project success. Using purposive sampling, data were collected from 336 respondents working in various project-based organizations of Pakistan. Our findings suggest that employees’ resilience and mindfulness act as buffers against the negative impact of psychological distress on project success. Therefore, the current study proposed directions to minimize psychological distress among project employees and ultimately bring attention to the successful completion of the project. Theoretical and practical implications of the study are also discussed.     

基于现金流视角的PPP项目财务预警指标体系构建研究

PPP项目具有建设周期较长、投资巨大、融资结构复杂、参与方众多等特点,因此存在着很大的财务风险,现金流能实时反映PPP项目资金流动情况,而对项目资金的预测又是PPP项目资金风险管理的关键。本文将结合企业财务预警与项目的评价方法,从现金流的视角构建PPP项目财务预警指标体系,以期提高PPP项目资金管理效率,确保PPP项目顺利实施及运营。     

The Project Involvement Index,psychological distress,and psychological well-being: Comparing workers from projectized and non-projectized organizations

It is important to understand the extent to which project involvement affects mental health. As projects and project management expand beyond traditional fields, it is also important to compare project involvement and mental health across settings that vary in terms of management structure. This study is the first to validate a Project Involvement Index (PII) useful in various settings to understand how workload relates to mental health defined as high psychological well-being and low psychological distress. Our results demonstrate that the PII is parsimonious measure showing reliability, predictive validity, and discriminant validity. Furthermore, results show that people involved in projects from a non-projectized organization show less mental health than those from a projectized organization.     

浅析住宅工程外墙渗漏质量通病及防治

当今建筑行业在住宅工程中外墙渗漏质量问题已成为开发商及施工单位的棘手问题,同时给业主对房屋的正常使用带来了很大困扰,尤其是在沿海城市、雨量较多的城市此现象更为普遍。结合几年来的施工现场管理经验,现将易产生外墙渗漏质量通病的几个方面进行分析和阐述,针对不同渗漏现象来具体分析其原因,采取相应防治措施对外墙渗漏的问题予以解决。     

Coping Efforts and Efficacy,Acculturation, and Post-Traumatic Symptomatology in Adolescents Following Wildfire

Recent studies of children and adolescents who have experienced a residential, industrial, or wild fire have suggested a causal link between fire disaster and PTSD related psychological distress. Not everyone, however, is equally affected by the stress of experiencing such an event, and the role of coping in this process may be an important mediating factor.Additionally, several studies have found that girls and African Americans report more distress following disasters than do boys and Caucasians. The current study sought to investigate the roles of exposure/loss, coping efficacy, and coping strategy in mediating psychological distress in adolescents after a disaster.The current study included a representative sample of 206 9th graders from a Central Florida High School affected by severe wildfires who were assessed via self-report measures 3- and 10- months after the fires, to assess the explanatory roles of exposure/loss, coping efficacy, and coping strategy on PTSD. Moreover, acculturation level and SES were included along with gender and ethnicity in testing for the moderating role of sociodemographics.Results indicated an important role for exposure/loss, coping efficacy, and coping strategy as they related to PTSD symptomatology in adolescents at both Time 1 and Time 2. Finally, although relationships between the proposed variables and PTSD did not interact with gender, acculturation, SES, or ethnicity, there was a significant interaction between acculturation and ethnicity signifying that for African American youth, high acculturation levels were predictive of less PTSD symptomatology.Portions of these data were presented at the annual meeting of the International Society for Traumatic Stress Studies in Miami in 1999.The primary data collection portion of this project was funded by a grant from the National Hazard Center, awarded to the first and second authors. Portions of this project were funded by a grant from the National Institutes of Mental Health, awarded to the second author and Thomas H. Ollendick.     

水泥混凝土路面的病害处理与改造技术

文章结合洛阳中州中路西段道路改造工程,介绍了对水泥混凝土路面病害进行注浆加固、铣刨、开槽填补等施工处理后,铺设土工布,再加铺沥青混凝土面层的改造方案。     

软土地基处理技术及沉降分析

软土地基会直接影响到公路路基的稳定性，降低公路路基的承载能力。如果处理不当，会对整个工程造成巨大困扰，造成人员财产的损失。本文对现行软土地基处理技术进行了分析比对和基本沉降分析，以求从理论层面找到软土地基处理问题的方法。     

应用离心模型试验分析涵洞病害机理

利用离心模型试验,通过模拟实际依托工程的地基形式、回填材料、沟坡地形以及施工工艺,分析了涵洞发生病害的全过程,利用图片测量软件再现了土体、涵洞结构体、地基相互作用的过程,阐述了涵洞纵向不均匀沉降所产生的“扁担效应”对涵洞结构破坏的机理,根据实录影像描述了涵洞模型裂缝的发展形式,并与实际病害工程对比。     

Discussion of paper

In the spring of 1993, the Utah Special Improvement District project was initiated to improve sidewalks, curb and gutters, and driveway approaches (aprons) in Salt Lake City. One of the critical problems faced during this project was how to recommend the most appropriate treatment decision at the roadway improvement job sites. Therefore, the research was conducted to demonstrate the use of an expert system on a portable computer at the construction job site. A prototype Portable Inspection Expert System (PIES) was developed based on the following factors: displacement, surface condition, water effect, tree root effect, and condition of adjacent sections. PIES can decide if replacement, jacking, or do nothing treatment of concrete sections is required.

PIES program was developed by using “KnowledgePro Windows” expert system shell, and installed in “Dauphin DTR-1” pen-based portable computer. One of the major benefits of using an expert system on a portable computer is that it can combine the necesary information on the distress condition of the facilities and help the inspectors make appropriate decision at construction job sites. PIES had been tested with two engineers and a follw-up survey was conducted after the test. Feedback from the survey was analyzed to improve limitations. The current inspection process for the Utah Special Improvement District project was improved by using a consistent decision rule of PIES.     

南京市道路交叉口路面病害调查及原因分析

根据南京市道路交叉口路面破坏状况调查、承载能力评定以及路面材料的性能检测结果 ,分析了道路交叉口路面病害的主要原因 ,并提出了防治对策