超大群桩监控系统传感器优化配置研究  

STUDY ON OPTIMAL PLACEMENT OF SENSORS FOR WIDE-ANGLE MONITORING SYSTEM OF SUPER-LARGE DEEP-WATER GROUP PILE FOUNDATION

作　　者：薛涛[1] 

机构地区：[1]金陵科技学院建筑工程学院,南京211169

出　　处：《低温建筑技术》2014年第11期97-99,共3页Low Temperature Architecture Technology

基　　金：国家重点基础研究发展规划(973计划)项目(2002CB412707)

摘　　要：超大型深水群桩基础的传力机理异常复杂,为了深入研究其受力和变形特性,构建广角度监控系统非常必要。然而,传感器性能越好,价格越高。在监控系统设计和优化过程中,技术经济指标是不得不考虑的重要因素。因此,如何以尽可能少的传感器获取尽可能多的响应信息,是超大型深水群桩基础广角度监控系统设计的关键技术之一。本文使用模拟退火算法对苏通大桥群桩基础广角度监控系统中的传感器进行了优化配置。结果表明:在不减小系统有效度的情况下,系统造价可减少近10%。The transfer mechanism of super-large deep-water group pile foundation is very com- plex. In order to study its force and deformation characteristics, it is necessary to build wide-angle monito- ring system. However, the better the characteristic of the sensor is, the higher its price is. Furthermore, the technical and economic indicators are important factors have to be considered during the process of moni- toring system design and optimization. Therefore, how to get more responses by fewer sensors is one of the key technologies in the wide-angle monitoring systems of the super-large deep-water group pile foundation designing. In this paper,the sensor of the Su Tong Bridge group pile wide-angle safety monitoring system was optimized by the simulated annealing algorithm, and the results show that the system costs can be re- duced nearly by 10% without decreasing the validity of the system.

关 键 词：群桩基础 广角度 传感器优化 模拟退火算法 

分 类 号：TU473.12[建筑科学—结构工程]