损伤缺陷对矿山井架结构的力学影响分析

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英文篇名：Analysis on the Effect of Damage Defects on Stress of Mine Steel Head Frame Structure 作者：杨明飞 ; 朱克川 ; 王辛 ; 邵浩 英文作者：YANG Mingfei;ZHU Kechuan;WANG Xin;SHAO Hao;School of Civil Engineering and Architecture, Anhui University of Science and Technology; 关键词：矿山井架结构 ; 局部锈蚀 ; 局部弯曲 ; 支座沉降 ; 复合缺陷 英文关键词：Mine steel head frame structure;;local corrosion;;local bending;;support settlement;;complex defects 中文刊名：安徽理工大学学报(自然科学版) 英文刊名：Journal of Anhui University of Science and Technology(Natural Science) 机构：安徽理工大学土木建筑学院; 出版日期：2019-01-15 出版单位：安徽理工大学学报(自然科学版) 年：2019 期：01 基金：安徽省高校自然基金资助项目(KJ2016A209);; 安徽理工大学人才引进基金资助项目(ZY04) 语种：中文; 页：47-52 页数：6 CN：34-1220/N ISSN：1672-1098 分类号：TD54

摘要

为了研究损伤缺陷对矿山井架结构的力学影响,利用ANSYS软件构建了结构的数值模型,分别考虑关键杆件局部锈蚀、局部弯曲、支座沉降和复合缺陷等工况,对其力学性能进行分析。研究表明:当锈蚀率达到35%时,结构的最大水平位移与初始结构相比增大了4.9%,但对最大应力影响较小。杆件弯曲和支座沉降对井架结构最大应力和水平位移的影响均较小。复合缺陷工况下,当弯曲量为60mm,锈蚀率为35%,支座沉降达到0.4°时,井架结构最大应力减小了4.2%,但水平位移增大了9.2%。综上所述,井架结构力学分析过程中须重点考虑复合损伤问题。
        In order to study the mechanical effect of damage defects on the structure of mine steel head frame structure, the numerical model of the structure is constructed by using ANSYS software. The mechanical properties of the structure are analyzed under the conditions of local corrosion, local bending, support settlement and complex defects of the key member. Studies have shown that when the corrosion rate reaches 35%, the maximum horizontal displacement of the structure is increased by 4.9% compared with the initial structure, but the effect on the maximum stress is small. The bending of the members and the settlement of the supports have little effect on the maximum stress and horizontal displacement of the damage structure. Under the condition of complex defects, when the bending amount is 60 mm, the corrosion rate is 35%, and the support settlement reaches 0.4°, the maximum stress of the damage structure is reduced by 4.2%, but the maximum horizontal displacement is increased by 9.2%. In general, the complex damage should be taken into account in the mechanical analysis of Mine steel head frame structure.

引文

[1] 战玉宝,赵海涛.矿山钢井架结构设计浅谈[J].煤炭技术,2010,29(1):139-141.
    [2] 路中科,马中成.不均匀地基沉降对钢井架的影响[J].煤炭工程,2016,48(8):28-30.
    [3] 许定江,练章华,张志东,等.石油K型矿井架结构强度可靠性评价[J].计算机仿真,2016,33(7):189-193.
    [4] JAFARKHANI R,MASRI S F.Finite Element Model Updating Using Evolutionary Strategy for Damage Detection [J].COMPUTER-AIDED CIVIL AND INFRASTRUCTURE ENGINEERING,2011,26(3):207-224.
    [5] 周国强,刘金梅.在用井架计算机模拟试验[J].石油机械,2001(1):8-10.
    [6] 周国强,韩东颖,郭奕珊.井架模型极限载荷试验[J].石油机械,2005(9):9-11.
    [7] 刘金梅,周国强,韩国有.考虑损伤的石油井架极限承载性能仿真研究[J].系统仿真学报,2009,21(6):1 781-1 784.
    [8] 黄志强,纪苏丹,张波,等.基于测试与有限元仿真的海洋井架安全评定[J].机械强度,2016,38(4):721-728.
    [9] BIEGUS A,CZEPIZAK D.Generalized model of imperfection forces for design of transverse roof bracings and purlins[J].ARCHIVES OF CIVIL AND MECHANICAL ENGINEERING,2018,18(1):267-279.
    [10] 周悦琴.在役作业井架安全承载能力评价方法研究[J].机械研究与应用,2014,27(4):91-93.
    [11] KRYSTOSIK P.Influence of Supporting Joints Flexibility on Statics and Stability of Steel Frames[J].INTERNATIONAL JOURNAL OF STEEL STRUCTURES,2018,18(2):433-442.
    [12] MOHAN S C,MAITI D K,MAITY D.Structural damage assessment using FRF employing particle swarm optimization[J].APPLIED MATHEMATICS AND COMPUTATION,2013,219(20):10 387-10 400.
    [13] 史三元,袁瑞阳,李国利.矿山井架天轮平台布置设计研究[J].煤炭工程,2016,48(11):24-26.
    [14] 中华人民共和国住房和城乡建设部.建筑结构荷载规范:GB 50009-2012[S].北京:中国建筑工业出版社,2012:10.
    [15] 中国煤炭建设协会.矿山井架设计规范:GB 50385-2006[S].北京:中国计划出版社,2006:12.
    [16] 魏辽,颜廷俊,刘宇.基于APDL的损伤缺陷对K形井架受力影响分析[J].石油矿场机械,2010,39(3):5-8.