基于桥梁转角响应易于获取的特点及桥梁影响线的准静态优势,以桥梁实际影响线精准提取前期研究为基础,提出一种结合桥梁梁端转角响应的损伤识别方法.针对梁式桥,结合实际转角影响线构建损伤定位指标,通过定位指标曲线局部峰值确定损伤位置.依此建立包含损伤信息的基函数,对实际转角影响线进行最小二乘拟合识别曲线系数,实现损伤定量.开展车辆过桥数值仿真研究,在20 m长简支梁模型上设置不同损伤工况,模拟二轴车过桥所致转角响应,考虑行车速度、路面平整度和测试噪声等因素影响,以此进行转角影响线的提取及损伤识别.结果表明,同等情况下损伤程度越大,识别结果偏差越小;相较2处损伤,单处损伤的定位更加准确.开展损伤识别模型试验,在5 m长试验梁不同位置处设置2处损伤,进一步进行损伤定位及定量研究.识别试验梁的损伤位置分别为2.09 m和3.05 m,损伤程度分别为0.31和0.47,均与实际值较为接近.上述研究表明:所构建的未损基函数及损伤基函数包含梁结构完整及损伤特征,结合当前状态下梁端转角响应可实现桥梁的损伤识别;损伤识别结果具备较高精度,可为直接利用梁端转角数据进行桥梁的损伤定位定量提供参考.

近年来,随着我国社会经济的不断发展,体育事业开始朝着产业化方向发展,这就促使很多体育工作者需要具备更强的体育管理能力,由此便诞生了一门新兴的学科——体育管理学. 体育管理是对体育活动人之间的关系进行管理,是一种社会性的实践管理活动,其研究的对象就是各种体育管理活动.当前我国社会正处于转型时期,体育方面的内容变得丰富多样,这就使更多人开始对体育管理重视起来.不仅如此,现如今的体育事业也成为涉及广泛、功能众多的第三产业,其对于我国社会经济的发展有很大影响.因此,必须在社会转型时期,加强对竞技体育人才的培养,如此才能够培养出更多的高素质体育管理人才,促进我国体育事业的发展.

自"双一流"提出以来就成为我国高校奋斗的目标和前进的方向.我国高校体育师资队伍的建设工作作为"双一流"建设任务中"建设一流师资队伍"的一部分,必须紧跟建设步伐.本文在"双一流"视域下,分析了我国高校体育师资队伍目前存在的一些问题,提出了体育师资队伍建设的原则以及建设策略,希望为"双一流"视域下的体育师资队伍建设贡献一份力量.

The comprehensive evaluation index system of the use efficiency of university sports stadiums is constructed by using the method of questionnaire (Delphi method)and the analytic hierarchy process (AHP)". According to the weight analysis of the system,the university sports stadiums should give priority to the needs of university education,physical education,sports and entertainment,so as to give full play to the educational value of college sports stadiums.

在线成绩登录系统是体育教学管理系统的一个重要组成部分。在网上处理体育课程成绩，包括录入、查询、汇总、打印、申报等功能，可以大大减少成绩处理的中间环节，能够有效地提高体育教学管理工作的效率。

This paper intends to probe into the supervision index system that CUBA coach shall wield towards sportsmen and make a comparision of the expectation values between coach and sportsmen as regards supervision conduct. It offers a feedback of CUBA sportsmen's evaluations on the coach's training method as well as suspension conduct,and suggests an orientation to which the coach shall spare no effort to improve the supervision conduct.

The purpose of this paper was to investigate the characteristics of competition anxiety of the professional coaches with the Spielberger state-trait anxiety inventory.The results showed that the trait anxiety during the match season remained relatively constant without significant dif-ference compared with the trait anxiety during the interval of the match season,while the state anxiety bears significant difference.The anxiety level of head coaches was obviously greater than that of assistant coaches.Moreover,the anxiety of head coaches was obviously greater than that of assistant coaches with trait and state anxiety bearing significance.During different phases of match season,the state anxiety of head coaches varied followed the procedure of league match in different curves and directly correlated with the ranking of teams.

在以"健康第一"体育教学思想指导下,小集体教学模式作为体育教学改革的突破口,越来越受到人们的关注.本文以小集体教学为出发点,提出了"自发组合"、"异质合作"、"同质合作"三种创新教学模式,初步阐明了其理论依据、教学目标、常见的几种教学形态及其特征和教学要求,旨在为我国体育教学改革提供一些理论参考依据.