›› 2006, Vol. 27 ›› Issue (S1): 122-126.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Studying redistribution of bending moment for damaged deam under dead load

WANG Ying1, YIN Zhu-hua2, ZHAO Ren-da1   

  1. 1. School of Civil Engineering, Southwest Jiaotong University, Chengdu 610031, China; 2. Petrochina Centralchina Gas Pipeline Transportation Company, Wuhan 430072, China
  • Received:2006-06-28 Published:2006-12-15

PDF (PC)

51

Abstract: The conception of equivalent stiffness is used to simulate structural damage severity. Using this approach, an analytical model, which includes three damage parameters（damage location, damage severity, and the length of damage）, is developed for fixed-fixed beam. Solutions for the bending moment along the fixed-fixed beam under dead load, for both the undamaged state and damaged state, are obtained by solving the equations which are deduced from the theories of plane bending and approximately differential equation of flexural. The change rules of bending moment for damaged fixed-fixed beam are summarized from comparing the numerical values. The purpose of this paper is to lay groundwork for future research about structural health monitoring and damage identification.

Key words: dead load, damage, beam, bending moment, redistribution

CLC Number: 

  • 0 346.5
  • Please send e-mail to pingzhou3@126.com if you would like to read full paper in English for free. Parts of our published papers have English translations.
[1] WANG Jie, SONG Wei-dong, TAN Yu-ye, FU Jian-xin, CAO Shuai, . Damage constitutive model and strength criterion of horizontal stratified cemented backfill [J]. Rock and Soil Mechanics, 2019, 40(5): 1731-1739.
[2] ZHANG Wei, QU Zhan-qing, GUO Tian-kui, SUN Jiang. Numerical simulation of hydraulic fracturing in hot dry rocks under the influence of thermal stress [J]. Rock and Soil Mechanics, 2019, 40(5): 2001-2008.
[3] WANG Yu, AI Qian, LI Jian-lin, DENG Hua-feng, . Damage characteristics of sandstone under different influence factors and its unloading failure meso-morphology properties [J]. Rock and Soil Mechanics, 2019, 40(4): 1341-1350.
[4] LI Xiao-zhao, QI Cheng-zhi, SHAO Zhu-shan, QU Xiao-lei, . Micromechanics-based model study of shear properties of brittle rocks [J]. Rock and Soil Mechanics, 2019, 40(4): 1358-1367.
[5] ZHU Sai-nan, YIN Yue-ping, LI Bin, . Shear creep behavior of soft interlayer in Permian carbonaceous shale [J]. Rock and Soil Mechanics, 2019, 40(4): 1377-1386.
[6] GAO Feng, XIONG Xin, ZHOU Ke-ping, LI Jie-lin, SHI Wen-chao, . Strength deterioration model of saturated sandstone under freeze-thaw cycles [J]. Rock and Soil Mechanics, 2019, 40(3): 926-932.
[7] ZUO Jian-ping, ZHOU Yu-bo, LIU Guang-wen, SHAO Guang-yao, SHI Yue, . Continuous deformation law and curvature model of rock strata in coal backfill mining [J]. Rock and Soil Mechanics, 2019, 40(3): 1097-1104.
[8] YU Jin, ZHANG Xin, CAI Yan-yan, LIU Shi-yu, TU Bing-xiong, FU Guo-feng, . Meso-damage and mechanical properties degradation of sandstone under combined effect of water chemical corrosion and freeze-thaw cycles [J]. Rock and Soil Mechanics, 2019, 40(2): 455-464.
[9] LI Cheng-wu, FU Shuai, XIE Bei-jing, LI Guang-yao, WAN Tian-yu. Characteristics and generation mechanism of low-frequency magnetic field generated during the damage of coal under static load [J]. Rock and Soil Mechanics, 2019, 40(2): 481-488.
[10] KANG Yan-fei, CHEN Jie, JIANG De-yi, LIU Wei, FAN Jin-yang, WU Fei, JIANG Chang-qi, . Damage self-healing property of salt rock after brine immersion under different temperatures [J]. Rock and Soil Mechanics, 2019, 40(2): 601-609.
[11] ZHENG Guang-hui, XU Jin-yu, WANG Peng, FANG Xin-yu, WANG Pei-xi, WEN Ming, . Physical characteristics and degradation model of stratified sandstone under freeze-thaw cycling [J]. Rock and Soil Mechanics, 2019, 40(2): 632-641.
[12] KANG Yan-fei, CHEN Jie, JIANG De-yi, LIU Wei, FAN Jin-yang. Summary on damage self-healing property of rock salt [J]. Rock and Soil Mechanics, 2019, 40(1): 55-69.
[13] SONG Hong-qiang, ZUO Jian-ping, CHEN Yan, LI Li-yun, HONG Zi-jie, . Revised energy drop coefficient based on energy characteristics in whole process of rock failure [J]. Rock and Soil Mechanics, 2019, 40(1): 91-98.
[14] ZENG Yin, LIU Jian-feng, ZHOU Zhi-wei, WU Chi, LI Zhi-cheng, . Creep acoustic emission and damage evolution of salt rock under uniaxial compression [J]. Rock and Soil Mechanics, 2019, 40(1): 207-215.
[15] YAO Zhi-hua, CHEN Zheng-han, FANG Xiang-wei, HUANG Xue-feng, . Elastoplastic damage seepage-consolidation coupled model of unsaturated intact loess and its application [J]. Rock and Soil Mechanics, 2019, 40(1): 216-226.
Viewed
Full text


Abstract

Cited
  Shared   
  Discussed   
[1] TANG Ming-ming, WANG Zhi-yin, MA Lan-ping, ZENG Zhi-hua, ZHANG Zhi-pei. Study of design parameters of oil-gas pipeline traversing loess gully[J]. , 2010, 31(4): 1314 -1318 .
[2] ZHANG Guang-ming, LIU He, ZHANG Jin, WU Heng-an, WANG Xiu-xi. Mathematical model and nonlinear finite element equation for reservoir fluid-solid coupling[J]. , 2010, 31(5): 1657 -1662 .
[3] MEI Guo-xiong, LU Ting-hao, CHEN Hao, LI Zhi. True triaxial experiment of foundation pit considering initial stress[J]. , 2010, 31(7): 2079 -2082 .
[4] NIU Wen-jie，YE Wei-min，LIU Shao-gang，YU Hai-tao. Limit analysis of a soil slope considering saturated-unsaturated seepage[J]. , 2009, 30(8): 2477 -2482 .
[5] WANG Ke-liang, LIU Ling, SUI Tong-bo , XU Yun-hai, HU Ting-zheng. Experiment research on anti-shear(cut)performance of dam bedrock-rubber powder modified concrete in-situ[J]. , 2011, 32(3): 753 -756 .
[6] LIN Da-ming1,2，SHANG Yan-jun1，SUN Fu-jun3，SUN Yuan-chun1,2，WU Feng-bo1,2，LIU Zhi. Study of strength assessment of rock mass and application[J]. , 2011, 32(3): 837 -842 .
[7] JIN Xu-hao , LU Wen-bo , TIAN Yong , YAN Peng , CHEN Ming. Analysis of mechanisms of S wave generated in rock blasting process[J]. , 2011, 32(S2): 228 -232 .
[8] LI Tao ，ZHANG Zhi-hong ，TANG Bao-rong. Experimental study of retardant effect of clay barriers on contaminants in a confined disposal facility for dredged sediments from Taihu Lake[J]. , 2012, 33(4): 993 -998 .
[9] LI Hui , YAN E-chuan , YANG Jian-guo , Lü Kun . Study of interaction of landslide mass and retaining wall under condition of reservoir water[J]. , 2012, 33(5): 1593 -1600 .
[10] LIU Tao-ying ，CAO Ping ，ZHANG Li-feng ，ZHAO Yan-lin ，FAN Xiang . Study of fracture damage evolution mechanism of compression-shear rock cracks under high seepage pressure[J]. , 2012, 33(6): 1801 -1815 .
Copyright © Rock and Soil Mechanics, All Rights Reserved.
Tel: 027-87198484, 87199252, 87199253, 87198752　E-mail: ytlx@whrsm.ac.cn
Powered by Beijing Magtech Co. Ltd