液体调谐阻尼器对多高层结构的减震性能对比研究

董悦; 唐贞云

doi:10.6052/j.issn.1000-4750.2021.05.S013

液体调谐阻尼器对多高层结构的减震性能对比研究

doi: 10.6052/j.issn.1000-4750.2021.05.S013

董悦,
唐贞云^,

北京工业大学城市与工程安全减灾教育部重点实验室，北京 100124

基金项目: 国家自然科学基金项目(51978016)

详细信息

作者简介:
董　悦(1997−)，女，山东人，硕士生，主要从事工程结构抗震研究(E-mail: dongyue97@foxmail.com)

通讯作者:
唐贞云(1983−)，男，重庆人，副研究员，博士，主要从事工程结构抗震与减振、结构试验技术研究(E-mail: tzy@bjut.edu.cn)

中图分类号: TU352.1
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- HTML全文浏览量: 28
- PDF下载量: 30
- 被引次数: 0
出版历程
- 收稿日期: 2021-05-30
- 修回日期: 2022-02-23
- 网络出版日期: 2022-04-16
- 刊出日期: 2022-06-06

COMPARATIVE RESEARCH ON SEISMIC PERFORMANCE OF TLD CONTROLLED MULTI-STOREY AND HIGH-RISE STRUCTURE

DONG Yue,
TANG Zhen-yun^,

The Key Laboratory of Urban Security and Disaster Engineering of Ministry of Education, Beijing University of Technology, Beijing 100124 , China

摘要

摘要: 调谐液体阻尼器(TLD)是一种典型有效的结构动力响应被动控制装置，可用于控制风致振动和地震响应。针对传统振动台缩尺试验的局限，该文采用振动台实时子结构试验研究了TLD对低层、中层和高层结构地震线性响应阶段及高层结构地震非线性响应阶段的影响。分别讨论了TLD频率与结构一阶频率比、TLD质量比以及地震激励幅值对TLD减震性能的影响规律。研究结果表明：当结构响应处于线性阶段时，TLD对加速度控制效果优于位移响应，相比于中低层结构，更适于高层结构减震；由于地震的随机性，对中低层结构位移响应有可能产生不利影响。当结构响应进入非线性后，受限于TLD较窄的减震频带，TLD对结构减震效果呈现较大的离散性。
- 多层结构 /
- 高层结构 /
- 调谐液体阻尼器 /
- 减震性能 /
- 实时混合试验
Abstract: Tuned liquid damper (TLD) is an effective passive control device to control structural vibration under wind and earthquake loads. To overcome the disadvantage of scaled model in traditional shaking table test, a real-time hybrid testing system is established in this study to evaluate the seismic performance at the linear response stage of low-rise, middle-rise and high-rise buildings and the nonlinear seismic response of high-rise buildings with TLD. The influence of TLD frequency ratio, mass ratio and excitation amplitude on seismic performance are discussed. The results showed that when the structure is at the linear stage, TLD is more suitable for controlling the acceleration response. TLD performed more effective in suppressing the structural response of high-rise structure than low-rise and middle-rise structure. Because of the randomness of earthquake, TLD may have adverse effects on the dynamic response of low-rise and middle-rise structure. When the high-rise structure is at the nonlinear stage, the damping performance of TLD on the structural response shows strong discreteness due to the narrow damping frequency band of TLD.
- multi-storey structure /
- high-rise structure /
- tuned liquid damper /
- seismic performance /
- real-time hybrid testing

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图 1 多高层结构TLD减震实时子结构试验系统

Figure 1. Real-time hybrid testing system for TLD damping performance of multi-storey and high-rise structures

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图 2 试验装置图

Figure 2. Diagram of the testing device

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图 3 地震波傅里叶谱

Figure 3. Fourier spectrum of the seismic waves

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4 3层结构下TLD的减震性能

4. Damping performance of TLD for 3-storey structure

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5 9层结构下TLD的减震性能

5. 6 Damping performance of TLD for 9-storey structure

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6 20层结构下TLD的减震性能

6. Damping performance of TLD for 20-storey structure

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图 7 TLD频率对20层结构非线性响应阶段的影响

Figure 7. Influence of TLD frequency on nonlinear response of 20-storey structure

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图 8 TLD质量对20层结构非线性响应阶段的影响

Figure 8. Influence of TLD mass on nonlinear response of 20-storey structure

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9 输入峰值加速度对20层结构非线性响应阶段的影响

9. Influence of PGA on nonlinear response of 20-storey structure

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表 1 Benchmark结构模型参数

Table 1. Structural parameters of the benchmark model

三层结构			九层结构			二十层结构
层数	质量/(×10⁵ kg)	刚度/(×10⁸ N/m)	层数	质量/(×10⁵ kg)	刚度/(×10⁸ N/m)	层数	质量/(×10⁵ kg)	刚度/(×10⁸ N/m)	层数	质量/(×10⁵ kg)	刚度/(×10⁸ N/m)
1	9.57	2.65	1	10.10	3.18	1	5.63	3.17	11	5.52	2.32
2	9.57	1.59	2	9.89	3.58	2	5.52	3.06	12	5.52	2.18
3	10.40	1.14	3	9.89	3.30	3	5.52	2.89	13	5.52	2.10
−	−	−	4	9.89	2.98	4	5.52	2.80	14	5.52	1.97
−	−	−	5	9.89	2.80	5	5.52	2.75	15	5.52	1.84
−	−	−	6	9.89	2.56	6	5.52	2.70	16	5.52	1.76
−	−	−	7	9.89	2.00	7	5.52	2.64	17	5.52	1.58
−	−	−	8	9.89	1.49	8	5.52	2.58	18	5.52	1.38
−	−	−	9	9.89	1.21	9	5.52	2.53	19	5.52	1.12
−	−	−	−	−	−	10	5.52	2.46	20	5.84	0.93

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表 2 TLD模型参数

Table 2. Model parameters of TLD

编号	受控结构	长/m	宽/m	高/m
TLD-1	3层	0.8	0.8	1.5
TLD-2	9层、20层	1.2	0.8	0.8
TLD-3	9层、20层	2.0	2.1	1.2
TLD-4	20层	2.0	0.8	1.2

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表 3 试验工况参数

Table 3. Parameters for test cases

结构模型	TLD	结构响应阶段	影响因素
3层	TLD-1	线性	频率比	0.59;0.71;0.8;0.9;1
			质量比/(%)	1;2;6
			输入幅值/(m/s²)	0.5;1;1.5
9层	TLD-2		频率比	1;1.22;1.45
9层	TLD-3		质量比/(%)	1.5;4;6
20层	TLD-3、 TLD-4		频率比	1;1.15;1.46
			质量比/(%)	1;1.5;2
			输入幅值/(m/s²)	0.8;1;1.2
	TLD-3、 TLD-4	非线性	频率比	0.89;1;1.16;1.46
			质量比/(%)	0.5;1;1.5;2
			输入幅值/(m/s²)	1;1.2;1.5;1.6;1.8

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