基于安全效益的塔吊可靠性研究
2012-09-06麦景成
摘要:建筑业是国民经济中的重要组成部分,随着项目规模日益增大,管理难度也随之提高。城市高层建筑不断涌现,塔吊的使用日益频繁,成为工程施工中最常用的垂直运输机械设备。塔吊是施工中的重大危险性工程,如何保证塔吊能可靠工作是建筑企业要解决的重大技术问题。同时,为了达到安全施工的目标,又要降低安全经费的投入,以安全效益的原则来保证经济性。本文将基于安全效益对塔吊安全投入进行研究,寻找最佳的安全投资点。
关键词:安全效益;塔吊;可靠性;安全投资点
Abstract:The construction industry is an important part of the national economy in China, there are more difficulties due to the increasing scale of engineering projects, especially the security problems, which always trouble the construction enterprises. High-rise buildings have mushroomed appear constantly, the use of tower become more frequently, it has became the most commonly used construction equipment of the vertical transportation. However, crane is the major risk project of construction, how to ensure the crane can work reliably is the important technical problem. At the same time, in order to achieve the goal of construction safety and reasonable to reduce the security input as far as possible, it must comply with the principle of safety benefit to ensure economy. This paper will be based on security benefits of crane safety input, and search for the best security investment point.
Key words:security benefits; crane reliability; security investment point
中图分类号: TU198 文献标识码: A 文章编号:
1引言
建筑企业作为我国高危行业之一,都在努力寻找既能降低成本又能提高效率和产出的方法,但在追求最佳投入产出比和利润最大化的同时,施工安全是要面对的最大问题,其中施工人员的安全意识、技能和投入是影响安全的三个重要因素。然而,在建筑企业不断增加安全投入的同时,事故却依然频繁发生,这让我们不得不思考:是否更多的安全投入就能改善施工的安全状况?怎样的安全投入是合理的?目前的文献都单独研究安全效益或者塔吊可靠性分析,而把两者结合起来进行研究的尚且不多。本文以塔吊为例,引入安全效益原则对塔吊可靠性进行分析,从而说明合理的投入与安全的关系,寻找最佳的安全投资点。
2安全投资效益
2.1安全效益
安全经济效益是指通过安全投资实现的安全条件,在生产和生活过程中保障技术、环境及人员的能力和功能,并提高其潜能,为社会经济发展所带来的利益 [7]。……
