多因素作用下机场滑行道桥健康承载力学性能分析

张宇辉; 廖蜀娇; 赵媛媛

doi:10.13700/j.bh.1001-5965.2024.0299

多因素作用下机场滑行道桥健康承载力学性能分析

doi: 10.13700/j.bh.1001-5965.2024.0299

1.
中国民航大学交通科学与工程学院，天津 300300
2.
中国中元国际工程有限公司国际院，北京 100080

基金项目:

天津市教委自然科学计划(2018KJ245)

详细信息

通讯作者:
E-mail：xueyingshuang@163.com

中图分类号: V351.1
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- 被引次数: 0
出版历程
- 收稿日期: 2024-05-08
- 录用日期: 2024-06-14
- 网络出版日期: 2024-06-20
- 整期出版日期: 2026-07-31

Analysis of health-based load-bearing mechanical properties of airport taxiway bridges under multifactorial effects

1.
College of Transportation Science and Engineering，Civil Aviation University of China，Tianjin 300300，China
2.
China IPPR International Engineering Co.，Ltd，Beijing 100080，China

Funds:

Tianjin Education Commission Natural Science Program (2018KJ245)

More Information

Corresponding author: E-mail：xueyingshuang@163.com

摘要

摘要:
针对滑行道桥在地震波、飞机荷载和损伤分级的复合作用下的健康承载性能问题，提出机桥耦合作用下基于振动参数的桥梁检测方法，通过有限元仿真与现场实验，建立飞机-滑行道桥耦合振动损伤模型，根据实测数据调整模型参数，模型误差控制在7%以内。输入调整后的地震波，模拟滑行道桥在不同飞机荷载、损伤程度和地震荷载情况下的力学性能，建立多因素作用下滑行道桥的振动性能分析模型，实现对桥梁健康承载力学性能的评估。选取2种工况，验证模型的可行性。以上研究成果将为滑行道桥基于振动参数的检测评估提供重要的理论基础和参考意义。
- 滑行道桥 /
- 有限元仿真 /
- 地震波 /
- 多因素作用 /
- 健康承载力学性能
Abstract:
The vibration parameter-based bridge inspection method was proposed under the coupling effect of aircraft and bridge, aiming at the health bearing performance of taxiway bridge under the compound effect of earthquake, aircraft load, and damage grading coupling field. The aircraft-taxiway bridge coupling vibration damage model was set up through the finite element simulation and on-site experiment; the model parameters were adjusted according to the measured data, and the error of the model was controlled within 7%. Input the adjusted seismic wave, simulate the mechanical properties of the taxiway bridge under different aircraft load, damage degree and seismic load, establish the vibration performance analysis model of taxiway bridge under multi-field coupling, and realize the assessment of the mechanical properties of the bridge's healthy bearing. Two working conditions were selected to verify the feasibility of the model. The aforementioned study findings will offer a crucial theoretical foundation and point of reference for the identification and assessment of taxiway bridges using vibration characteristics.
- taxiway bridge /
- finite element simulation /
- seismic waves /
- multifactorial effects /
- healthy bearing mechanical performance

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图 1 桥梁上部结构网格划分图

Figure 1. Grid division drawing of bridge superstructure

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图 2 B747-400主起落架构型图

Figure 2. Configuration diagram of B747-400 aircraft main landing gear

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图 3 B747-400飞机-滑行道桥耦合振动模型

Figure 3. Coupled vibration model of B747-400 aircraft taxiway bridge

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图 4 不同损伤分级下的频率变化

Figure 4. Frequency variation at different injury classifications

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图 5 不同损伤分级下的跨中挠度变化

Figure 5. Variation of mid-span deflection for different damage classifications

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图 6 应变传感器布置图

Figure 6. Layout of strain sensor

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图 7 倾角传感器布置图

Figure 7. Inclination sensor layout

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图 8 1号测线实测应变曲线图

Figure 8. Measured strain curve of line 1

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图 9 1号测线实测倾角曲线

Figure 9. Measured inclination curve of line 1

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图 10 跨中最大拉应力随最大滑行重量下的主起落架轮载的变化图

Figure 10. Variation of the maximum tensile stress in the span with the main landing gear wheel load at maximum glide weight

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图 11 跨中最大挠度随最大滑行重量下的主起落架轮载的变化图

Figure 11. Variation of maximum deflection in span with main landing gear wheel load at maximum glide weight

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图 12 桥梁跨中最大拉应力随损伤程度变化曲线图

Figure 12. Variation of maximum tensile stress in bridge span with degree of damage

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图 13 桥梁跨中最大挠度随损伤程度变化曲线图

Figure 13. Variation of maximum deflection in span with degree of damage

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图 14 跨中最大拉应力随地震烈度的变化曲线图

Figure 14. Variation of maximum tensile stress in span with seismic intensity

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图 15 跨中最大挠度随地震烈度的变化曲线图

Figure 15. Plot of maximum deflection in span with seismic intensity

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表 1 飞机机型及参数表

Table 1. Aircraft types and parameters table

机型	起落架构型	P_t/kN	M_TW/kN	m₁/kN	m₂/kN
B737-800	单轴双轮	187.63	792.6	752.97	188.24
B747-400	双轴双轮	236.15	3978.0	3 779.06	236.69
B777-300	三轴双轮	236.50	3002.8	2 846.66	237.22
注：①P_t为飞机主起落架上的轮载，kN；②M_TW为最大滑行重量，kN；③m₁为最大滑行重量下的主起落架轮载，kN；④m₂为最大滑行重量下的单轮荷载，kN。

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表 2 桥梁健康状况类别

Table 2. Bridge health condition category

桥梁状态	桥梁承载能力	重要部件损伤程度	次要部件损伤程度
完好、良好	符合设计标准	完好	3%以内
较好	达到设计标准	3%以内	10%以内
较差	设计值的90%以上	10%以内	10%～20%
差	设计值的90%～75%	10%～20%	20%以上
危险	设计值的75%以下	严重损伤	严重损伤

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表 3 桥梁整体损伤程度分级表

Table 3. Grading scale for overall bridge damage

损伤程度	损伤程度/%	E/MPa
无损伤	0	34 500
轻微损伤	5	32 775
中度损伤	10	31 050
较严重损伤	15	29 325
严重损伤	20	27 600
完全损伤	25	25 875

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表 4 桥梁不同损伤分级下的频率

Table 4. Frequency of bridges with different damage classifications

损伤程度/%	f_无荷载/Hz	f_B737-800/Hz	f_B777-300/Hz	f_B747-400/Hz
0	10.050	9.610	8.356	7.803
5	9.814	9.382	8.153	7.614
10	9.57	9.146	7.944	7.418
15	9.317	8.902	7.728	7.217
20	9.055	8.649	7.504	7.009
25	8.780	8.381	7.274	6.794

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表 5 桥梁不同损伤分级的跨中挠度

Table 5. Mid-span deflections of bridges with different damage classifications

损伤程度/%	y_无荷载/mm	y_B737-800/mm	y_B777-300/mm	y_B747-400/mm
0	1.607	1.874	2.165	2.367
5	1.689	1.970	2.298	2.487
10	1.779	2.076	2.400	2.621
15	1.881	2.194	2.538	2.77
20	1.995	2.328	2.693	2.938
25	2.124	2.479	2.869	3.127

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表 6 精度验证表

Table 6. Accuracy verification table

机型	挠度/mm		应变/10⁻⁵		频率仿真值/Hz
机型	仿真值	实测值	仿真值	实测值	频率仿真值/Hz
B747-400	2.507	2.457	3.350	3.220	7.604
B777-300	2.382	2.287	2.900	2.730	8.149
注：B747-400的挠度误差为2.04%，应变误差为4.04%，B777-300的挠度误差为4.15%，应变误差为6.23%。

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表 7 7度地震波作用下的加载结果

Table 7. Loading results under 7 degree seismic wave action

机型	σ/MPa	Y/mm
B737-800	1.68	3.31
A380-800	4.38	6.77
B747-400	4.57	7.19
注：σ为桥梁下表面跨中最大拉应力。

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表 8 桥梁在各机型作用下的跨中最大挠度变化和跨中板底的最大拉应力

Table 8. Maximum mid-span deflection variation and maximum tensile stress at the bottom of the span slab for bridges under the action of various models

机型	m₁/kN	σ/MPa	Y/mm
B737-800	752.97	1.67	3.12
B767-200	1779.67	2.64	4.30
MD-11	2239.55	2.73	4.65
B747-400	3779.06	4.55	6.86
A380-800	3203.40	3.93	6.40

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表 9 不同损伤程度下的跨中最大挠度变化和跨中的最大拉应力变化

Table 9. Variation of maximum deflection in span and variation of maximum tensile stress in span for different degrees of damage

机型	损伤程度/%	σ/MPa	Y/mm	机型	损伤程度/%	σ/MPa	Y/mm
B737-800	0	1.67	3.12	B767-200	0	2.64	4.30
	5	1.68	3.31		5	2.65	4.83
	10	1.85	3.62		10	3.13	5.40
	15	2.08	3.95		15	3.27	5.52
	20	2.28	4.36		20	3.47	5.90
	25	2.35	5.01		25	3.52	6.72
B747-400	0	2.28	2.35	A380-800	0	3.93	6.40
	5	4.36	5.01		5	4.38	6.77
	10	5.28	7.39		10	4.61	7.54
	15	5.64	7.85		15	4.76	7.72
	20	5.86	8.56		20	5.21	7.91
	25	6.51	8.65		25	6.11	8.66

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表 10 不同烈度地震波作用下桥梁跨中最大拉应力与跨中最大挠度变化

Table 10. Variation of maximum mid-span tensile stresses and maximum mid-span deflections in bridges subjected

地震波/度	σ/MPa				Y/mm
地震波/度	B737-8	B767-2	B747-4	A380-8	B737-8	B767-2	B747-4	A380-8
6	1.33	2.10	3.59	2.92	2.66	3.42	5.52	5.01
7	1.64	2.64	4.55	3.93	3.12	4.30	6.86	6.40
8	2.35	3.74	6.45	4.75	4.05	5.47	9.54	8.75
9	3.72	5.90	10.24	7.19	5.92	8.19	14.92	12.73
10	1.00	11.83	16.45	31.03	7.98	12.66	21.70	13.98

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表 11 式（8）、式（9）精度验证表

Table 11. Equation (8)～ (9) accuracy verification table

工况	$ \sigma $/MPa			$ Y $/mm
工况	仿真值	公式值	误差	仿真值	公式值	误差
工况1	7.78	7.27	0.0656	12.03	11.45	0.0482
工况2	3.69	3.92	0.0623	6.40	6.16	0.0375

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