地震研究

网络数据中心典型通信机柜抗震性能拟静力对比试验

张亮泉¹,刘光涛¹,毛晨曦²

(1.东北林业大学土木工程学院,黑龙江哈尔滨 150040; 2.中国地震局工程力学研究所地震工程与工程振动重点实验室,黑龙江哈尔滨 150080)

Pseudo-static Experiments of Three Types of Typical IDC Communication Cabinets

ZHANG Liangquan¹,LIU Guangtao¹,MAO Chenxi²

(1.School of Civil Engineering,Northeast Forestry University,Harbin 150040,Heilongjiang,China)(2.Key Laboratory of Earthquake Engineering and Engineering Vibration,Institute of Engineering Mechanics,China Earthquake Administration,Harbin 150080,Heilongjiang,China)

Keywords：IDC cabinet; pseudo-static test; aseismic capacity; damage mechanism; force-deformation hysteretic curves

DOI: 10.20015/j.cnki.ISSN1000-0666.2022.0033

备注

摘要

全文

图/表

参考文献

为研究网络数据中心典型通信机柜损伤特征,获得其力学性能参数,对3种常用的不同尺寸的6台机柜进行了往复拟静力加载试验,为准确建立机柜的有限元模型提供数据基础。试验中对每种机柜分别进行了沿宽度和厚度方向的水平往复加载,逐渐增大机柜顶部位移幅值,直至机柜严重破坏,观察其损伤发展过程、特征损伤现象,记录其承载力-位移滞回曲线。结果表明:对于此类通信机柜,底部梁节点焊缝开裂、门板和侧板丧失支撑作用、立柱与机柜底板焊缝开裂是关键的损伤机制,在建立有限元分析模型时应重点考虑。

In order to investigate the damage characteristics of the commonly used communication cabinets in the internet data center(IDC),obtain parameters of mechanical property,and accumulate basic data for establishing accurate finite element models of six cabinets with various sizes,pseudo-static experiments were carried out on them.During the tests,each cabinet was loaded in X direction and in Y direction respectively.The displacement on the top of each cabinet gradually increased until the cabinet was seriously damaged.The damage process and some special types of damage were observed,and the hysteretic curves of bearing capacity-displacement were got.The test results show that for such communication cabinets,the cracking of bottom beam joints,the loss of door and side panels make up the key damage mechanism,which should be taken into consideration when establishing the finite element model.

引言
1 通信机柜概况
2 通信机柜主体钢材拉伸试验及主要物理指标
3 拟静力加载试验
4 试验结果
5 结论

表1 试验中通信机柜主要机械参数<br/>Tab.1 Main mechanical parameters of the cabinets in the experiment

表1 试验中通信机柜主要机械参数
Tab.1 Main mechanical parameters of the cabinets in the experiment

图1 通信机柜主体结构示意图<br/>Fig.1 The main structure of the cabinet

图1 通信机柜主体结构示意图
Fig.1 The main structure of the cabinet

图2 试验机柜(a)、配重(b)及传感器布置(c)<br/>Fig.2 The test cabinet(a),weight stack(b)and sensor arrangement(c)

图2 试验机柜(a)、配重(b)及传感器布置(c)
Fig.2 The test cabinet(a),weight stack(b)and sensor arrangement(c)

图3 标准拉伸试件(取自机柜主体)<br/>Fig.3 The standard tensile specimens(taken from the cabinet body)

图3 标准拉伸试件(取自机柜主体)
Fig.3 The standard tensile specimens(taken from the cabinet body)

图4 试验后破坏试件及加载装置<br/>Fig.4 The destroyed specimens and the loading device

图4 试验后破坏试件及加载装置
Fig.4 The destroyed specimens and the loading device

图5 600(a)、800(b)、1000(c)3组试件应力-应变曲线<br/>Fig.5 Stress-strain curves of specimens with length of 600 mm(a),800 mm(b),and 1 000 mm(c)in tensile test[HT][HJ]

图5 600(a)、800(b)、1000(c)3组试件应力-应变曲线
Fig.5 Stress-strain curves of specimens with length of 600 mm(a),800 mm(b),and 1 000 mm(c)in tensile test[HT][HJ]

表2 机柜主体钢材主要力学参数<br/>Tab.2 The main mechanical parameters of cabinets

表2 机柜主体钢材主要力学参数
Tab.2 The main mechanical parameters of cabinets

图6 X方向(a)和Y方向(b)位移计布置图<br/>Fig.6 The displacement sensor layout in X(a)and Y(b)direction[HT]

图6 X方向(a)和Y方向(b)位移计布置图
Fig.6 The displacement sensor layout in X(a)and Y(b)direction[HT]

图7 拟静力试验加载位移历程<br/>Fig.7 The displacement history of pseudo-static loading experiments

图7 拟静力试验加载位移历程
Fig.7 The displacement history of pseudo-static loading experiments

表3 沿X方向加载时厚度800 mm机柜的损伤发展过程<br/>Tab.3 Damage process of 800 mm long cabinets when being loaded in X direction

表3 沿X方向加载时厚度800 mm机柜的损伤发展过程
Tab.3 Damage process of 800 mm long cabinets when being loaded in X direction

表4 沿X方向加载时3种机柜的损伤发展过程<br/>Tab.4 Damage preocess of three types of cabinets when being loaded in X direction.

表4 沿X方向加载时3种机柜的损伤发展过程
Tab.4 Damage preocess of three types of cabinets when being loaded in X direction.

表5 沿Y方向加载时厚度800mm机柜的损伤发展过程<br/>Tab.5 Damage process of the 800 mm long cabinet when being loaded in Y direction.

表5 沿Y方向加载时厚度800mm机柜的损伤发展过程
Tab.5 Damage process of the 800 mm long cabinet when being loaded in Y direction.

表6 沿Y方向加载时3种机柜的损伤发展过程<br/>Tab.6 Damage process of three types of cabinets when being loaded in X direction

表6 沿Y方向加载时3种机柜的损伤发展过程
Tab.6 Damage process of three types of cabinets when being loaded in X direction

图8 600(a)、800(b)、1000(c)机柜沿X、Y方向力-位移滞回曲线<br/>Fig.8 The force-displacement curves of cabinets with lenth of 600 mm(a),800 mm(b),1 000 mm(c)in X and Y direction respectively

图8 600(a)、800(b)、1000(c)机柜沿X、Y方向力-位移滞回曲线
Fig.8 The force-displacement curves of cabinets with lenth of 600 mm(a),800 mm(b),1 000 mm(c)in X and Y direction respectively

图9 800机柜沿X向X-3阶段(a)Y方向Y-4阶段(b)力-位移曲线<br/>Fig.9 Force-displacement curves of cabinets with length of 800 mm in the loading phase X-3 in X direction(a)and Y-4 in Y direction(b)[HT]

图9 800机柜沿X向X-3阶段(a)Y方向Y-4阶段(b)力-位移曲线
Fig.9 Force-displacement curves of cabinets with length of 800 mm in the loading phase X-3 in X direction(a)and Y-4 in Y direction(b)[HT]

图10 600(a)、800(b)、1000(c)机柜在X方向和Y方向力-位移滞回性能的比较<br/>Fig.10 Comparison of the force-displacement behavior of cabinets with length of 600 mm(a),800 mm(b),and 1000 mm(c)in X direction and Y direction respectively

图10 600(a)、800(b)、1000(c)机柜在X方向和Y方向力-位移滞回性能的比较
Fig.10 Comparison of the force-displacement behavior of cabinets with length of 600 mm(a),800 mm(b),and 1000 mm(c)in X direction and Y direction respectively