Journal of Jilin University(Engineering and Technology Edition) ›› 2024, Vol. 54 ›› Issue (5): 1377-1384.doi: 10.13229/j.cnki.jdxbgxb.20230262

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Characteristic distribution of inter story deformation of building structure after earthquake

Zhen-yong DI1(),Xin-hui YANG2   

  1. 1.Audit Office，Southwest University，Chongqing 400715，China
    2.Foundation Research Institute of Chinese Academy of Building Sciences，Beijing 100013，China
  • Received:2023-03-24 Online:2024-05-01 Published:2024-06-11

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Abstract:

It is not modeling analysis characteristics lead to poor analysis effect in the analysis of interstory deformation characteristics of building structure. Therefore， the distribution characteristics of interstory deformation of building structure after earthquake are studied. It built structure 3D model is established by building information model technology. The generalized interstory displacement spectrum method is introduced to construct the interstory displacement formula and it realize the analysis of interstory deformation characteristic distribution of building structure. The results show that the interlayer displacement increases with the acceleration under different accelerations. The bending moment， shear force and interstory displacement angle of a one-story building reach 237 kN·m， 210 kN and 1/231 rad， respectively， showing the biggest changes. The analysis results are in agreement with the practice and it can be used to analyze the interlayer deformation characteristics effectively.

Key words: building information modeling technology, building structure, interlayer deformation, distribution characteristics, three-dimensional model, interlayer displacement spectrum

CLC Number: 

  • TU973.31

Fig.1

Building structure diagram"

Table 1

Architectural structure design parameters"

参数取值
结构基准周期60年
使用年限70年
安全等级二级
地基等级甲级
设防烈度8度
场地类别二类
地震分组第一组
抗震等级一级
地面粗糙类别B类
轴压比0.21
柱端弯矩3.23

Fig.2

3D model of building structure"

Table 2

Model information parameters"

名称数值/mm
中间板延伸长度50.0
上柱截面高900.0
上柱翼缘厚20.0
肩梁长度500.0
肩梁高度1555.0
顶板宽度660.0
底板厚20.0
顶板厚25.0
中部肋厚12.0
柱下肋厚20.0

Fig.3

Building model"

Table 3

Seismic wave parameters of near?field strong earthquakes"

地震记录地震时间峰值加速度（PGA）/g时间间隔/ms方向
WHITTIER1987-10-1399.110.02270
FERNANDO1971-2-9150.780.02UD
MORGAN1984-4-2493.340.02320

Fig.4

Inter storey displacement of building structure"

Fig.5

Inter storey displacement of building structure height"

Fig.6

Bending moment change of building structureheight"

Fig.7

Shear force change of different floors of building structure"

Table 4

Inter storey displacement angle of different floors of building structure"

楼层层间位移角/rad影响率/%
均值1/29711.2
1楼1/23114.8
2楼1/3509.3
3楼1/3459.4
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