摘要
介绍了油罐区砖砌防火堤的抗震验算基本原理和方法,并按照验算方法实现其通用化计算。防火堤主要受到4种荷载作用,即自重惯性力及其引起的弯矩、堤内静液压力及其引起的弯矩、堤内动液压力及其引起的弯矩、自重引起的垂直力。按不同烈度要求计算得到4种荷载作用校核堤的截面抗力和地基强度。通过两个算例检验该方法在抗震鉴定中的应用。两个防火堤典型断面的截面强度、抗滑动及抗倾覆稳定性、地基强度验算结果分别符合抗震设防7度和8度要求。防火堤作为备用体系,其抗震验算程序的通用性具有实用意义。
The article introduces the basic theory and method of antiseismic calculation of bricked fireproofing dyke in oilcan region, and generalizes the calculation according to checking calculation method. Fireproofing dyke is acted by four kinds of loading, i.e. inertia force of self-weight and its crankle moment from the force, static hydraulic pressure in the dyke and its crankle moment, dynamic hydraulic pressure in the dyke and its crankle moment and vertical force from selfweight. We calculate section resistance and groundwork strength of the dyke acted by four kinds of load according to different intensity. We check the performance in antiseismic appraisal with two examples. The results of checking calculation of section strength, anti-slide, and anti-collapse stability and groundwork strength of typical section of two fireproofing dykes are respectively qualified to the requirement of intensityⅧ and intensityⅧ region. Fireproofing dyke is used as spare system, general character of antiseismic checking program is practical.
出处
《内陆地震》
2006年第3期219-225,共7页
Inland Earthquake
关键词
油罐区
砖砌防火堤
抗震验算
抗震鉴定
后备体系
Oil can region
Bricked fireproofing dyke
Antiseismic checking calculation
Antiseismic appraisal
Spare system
