Bond-slip properties of corrugated steel plate-rubber interface
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摘要: 波形钢板-橡胶构件因波形钢板的几何形状优势，表现出良好的抗震性能，对其界面黏结滑移性能有待研究。考虑波形钢板与橡胶界面的粘结长度、粗糙度和试件的加载方式对两者界面性能的影响，设计了6个波形钢板-橡胶试件进行往复加载试验，根据黏结破坏过程、界面耗能、应变分布和影响因素分析试件的黏结性能。结果表明：波形钢板-橡胶界面受往复荷载作用时，黏结破坏依次经历微滑移、滑移、破坏、曲线下降和残余阶段；从能量角度分析发现：粘结长度的长短显著影响界面耗能；合理控制粗糙度，可改善试件界面耗能，提高界面黏结性能；波形钢板-橡胶构件在荷载较大时，应变发生突变且波脊处影响最大；与单调加载相比，往复加载下试件的残余黏结滑移降低29%；波形钢板-橡胶试件的极限特征黏结强度随粘结长度和粗糙度的增大呈现出先增加后逐步减弱；最后确定了波形钢板与橡胶构件的特征黏结强度计算公式，并进行了计算值与试验值的比较，其吻合度较好。
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关键词:
- 波形钢板-橡胶 /
- 往复加载试验 /
- 黏结滑移性能 /
- 应变分布分析 /
- 特征黏结强度计算公式
Abstract: Due to the geometric advantages of corrugated steel plates, corrugated steel plates-rubber members exhibit good seismic performance. The bond-slip property of their interface requires investigation. To study the interface properties of corrugated steel plate and rubber, 6 specimens were designed for reciprocal loading tests, considering bonding length, roughness, and loading mode effects. Analysis of the specimens' bonding properties involve examining bonding failure processes, interfacial energy dissipation, strain distribution and influencing factors. Results indicate that under reciprocal loads, bonding failure progresses through micro-slip, slip, failure, curve decline and residual stages. Energy analysis reveals that the bond length's magnitude significantly affects the interfacial energy dissipation. Reasonable control of roughness can improve the specimen interfacial energy dissipation and improve the interfacial bonding performance. High loads on corrugated steel plates and rubber members cause abrupt strain changes, with the wave ridge experiencing the most significant impact. Residual bond slip under reciprocal loading is 29% lower than under monotone loading. The ultimate characteristic bond strength of the corrugated steel plate-rubber specimens shows an increase and then a gradual decrease with the increase of bond length and roughness; Formulas for calculating characteristic bond strength for these members are established, with calculated values compared to experimental results showing a good coincidence. -
图 1 波形钢板-橡胶试件示意图(单位：mm)
Figure 1. Diagram of corrugated steel plate-rubber specimens (Unit: mm)
图 2 波形钢板-橡胶试件加载装置与测点分布(单位：mm)
Figure 2. Loading device and measuring point distribution of corrugated steel plate-rubber specimens (Unit: mm)
图 3 波形钢板-橡胶试件加载制度示意图
Figure 3. Loading regime diagram of corrugated steel plate-rubber specimens
图 4 波形钢板-橡胶试件典型破坏形态
Figure 4. Typical failure modes of corrugated steel plate-rubber specimens
图 5 波形钢板-橡胶试件界面破坏示意图
Figure 5. Interface damage diagram of corrugated steel plate-rubber specimens
图 6 波形钢板-橡胶试件的荷载-滑移曲线
Figure 6. Load-slip curve of corrugated steel plate-rubber specimens
图 7 波形钢板-橡胶试件的特征荷载-滑移曲线
Figure 7. Characteristic load-slip curve of corrugated steel plate-rubber specimens
Ps−、Ps+—Microslip load; Ss−、Ss+—Displacement corresponding to microslip load; Pu−、Pu+—Peak load; Su−、Su+—Displacement corresponding to peak load; PD−、PD+—Destructive load; SD−、SD+—Displacement corresponding to destructive load; Pr−、Pr+—Residual load; Sr−、Sr+—Displacement corresponding to residual load
图 8 波形钢板-橡胶试件的界面黏结耗能计算简图
Figure 8. Calculation diagram of interface bonding energy consumption of corrugated steel plate-rubber specimens
图 9 波形钢板-橡胶试件的等效阻尼比-加载位移曲线
Figure 9. Equivalent damping ratio-loading displacement curve of corrugated steel plate-rubber specimens
图 10 波形钢板-橡胶试件的不同滑移水平下应变分布
Figure 10. Distribution of strain at various levels of slip of corrugated steel plate-rubber specimens
图 11 波形钢板-橡胶试件的加载方式对界面黏结性能的影响
Figure 11. Effect of loading mode on interface bonding performance of corrugated steel plate-rubber specimens
图 12 波形钢板-橡胶试件的粘结长度对界面黏结性能的影响
Figure 12. Effects of Bond lengths on interface bonding performance of corrugated steel plate-rubber specimens
图 13 波形钢板-橡胶试件表面粗糙度对界面黏结性能的影响
Figure 13. Effects of surface roughness on interface bonding performance of corrugated steel plate-rubber specimens
表 1 波形钢板-橡胶试件的基本参数
Table 1. Parameters of corrugated steel plate-rubber specimens
Specimen Bonding
length /mmRoughness/
mmLoading mode S-1 300 0.7 Push-out S-2 200 0.7 Cycle S-3 250 0.7 Cycle S-4 300 0.7 Cycle S-5 250 1.18 Cycle S-6 250 0.416 Cycle 
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表 2 钢板力学性能
Table 2. Mechanical properties of steel plate
Plate Thickness/mm Yield strength/MPa Peak Strength/MPa Q235 8 304 446
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表 3 橡胶力学性能
Table 3. Mechanical properties of rubber
Shore A hardness/degree σa/(kN·m−1) E/MPa δ/% 70 19 2.68 330 Notes: σa—tear strength; E—modulus of elasticity; δ—Elongation at break.
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表 4 波形钢板-橡胶试件的各特征荷载值
Table 4. Each characteristic load of corrugated steel plate-rubber specimens
Specimen Ps−/kN Ps+/kN Pu−/kN Pu+/kN PD−/kN PD+/kN Pr−/kN Pr+/kN S-1 — 2.27 — 33.20 — 26.68 — 2.38 S-2 −1.72 1.35 −13.71 12.94 −3.79 7.35 −1.36 1.82 S-3 −2.92 2.79 −26.14 29.83 −17.53 26.43 −1.45 1.75 S-4 −1.70 2.21 −25.71 30.46 −9.43 24.93 −1.21 1.45 S-5 −2.48 3.28 −23.30 27.00 −15.20 26.89 −1.91 1.94 S-6 −3.38 3.12 −25.80 28.36 −12.70 22.34 −2.23 1.93 Notes: Ps−、Ps+—Microslip load; Pu−、Pu+—Peak load; PD−、PD+—Destructive load; Pr−、Pr+—Residual load.
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表 5 波形钢板-橡胶试件的平均黏结应力
Table 5. Average bond stress of corrugated steel plate-rubber specimens
Specimen τs−/kPa τs+/kPa τu−/kPa τu+/kPa τD−/kPa τD+/kPa τr−/kPa τr+/kPa S-1 − 15.76 − 230.56 − 185.28 − 16.53 S-2 −17.92 14.06 −142.81 134.79 −39.48 76.56 −14.17 18.96 S-3 −24.33 23.25 −217.83 248.58 −146.08 220.25 −12.08 14.58 S-4 −11.81 15.35 −178.54 211.53 −65.49 173.13 −8.40 10.07 S-5 −20.67 27.33 −194.17 225.00 −126.67 224.08 −15.92 16.17 S-6 −28.17 26.00 −215.00 236.33 −105.83 186.17 −18.58 16.08 Notes: τs−、τs+—Microslip stress; τu−、τu+—Peak stress; τD−、τD+—Destructive stress; τr−、τr+—Residual stress.
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表 6 波形钢板-橡胶试件的各特征黏结强度计算结果
Table 6. Calculation results of each characteristic bond strength of corrugated steel plate-rubber specimens
Specimen (τs−)′/kPa (τs+)′/kPa (τu−)′/kPa (τu+)′/kPa (τD−)′/kPa (τD+)′/kPa (τr−)′/kPa (τr+)′/kPa S-2 −19.26 13.61 −136.43 140.34 −42.74 82.23 −14.50 20.12 S-3 −26.76 24.36 −194.43 244.34 −131.24 218.73 −11.36 15.24 S-4 −10.26 13.61 −157.43 223.34 −72.74 185.23 −8.80 11.26 S-5 −22.15 25.53 −187.64 241.30 −141.66 237.70 −15.91 17.18 S-6 −29.48 23.66 −205.85 249.43 −120.85 199.82 −18.59 17.08 Notes: (τs−)′、(τs+)′—Calculated value of microslip strength; (τu−)′、(τu+)′—Calculated value of peak strength; (τD−)′、(τD+)′—Calculated value of destructive strength; (τr−)′、(τr+)′—Calculated value of residual strength.
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表 7 波形钢板-橡胶试件的各特征黏结强度计算结果与试验结果对比
Table 7. Comparison of calculated and test results of each characteristic bond strength of corrugated steel plate-rubber specimens
Specimen (τs−)′/τs− (τs+)′/τs+ (τu−)′/τu− (τu+)′/τu+ (τD−)′/τD− (τD+)′/τD+ (τr−)′/τr− (τr+)′/τr+ S-2 1.07 0.97 0.96 1.04 1.08 1.07 1.02 1.06 S-3 1.10 1.05 0.89 0.98 0.90 0.99 0.94 1.05 S-4 0.87 0.89 0.88 1.06 1.11 1.07 1.05 1.12 S-5 1.07 0.93 0.97 1.07 1.12 1.06 1.00 1.06 S-6 1.05 0.91 0.96 1.06 1.14 1.07 1.00 1.06 Average value 1.032 0.950 0.932 1.042 1.070 1.052 1.002 1.070
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