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学者姓名：张峰
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Abstract ：
由于环境温度使主梁发生胀缩变形，导致整体桥桥台水平往复运动及桥台-土、桩基-土的相互作用。本文以某整体桥为工程背景，开展基于昼夜温度、季节性温度变形效应的整体式桥台-H型钢桩-土体系的低周往复位移荷载拟静力试验，分析试件的滞回性能、骨架曲线、桥台转角等变化规律。试验结果表明：试件全年滞回曲线可视为季节性温度作用、昼夜温度作用的滞回曲线叠加。从季节性温度作用来看，受春夏季升温影响，MTS水平力先快速增大，随后持续升温，水平力增速放缓；受夏秋季、秋冬季连续降温的影响，水平力先急剧减小，而随后持续降温，水平力降低减缓；受冬春季升温影响，水平力先急剧增加后增速放缓，其增速与第一次春夏季升温时相似，但由于台后土发生累积效应，产生的水平力更大。从昼夜温度作用来看，当环境温度较高时(夏季),夜晚降温对体系相互作用的影响大于白天升温时的影响；当环境温度较低时(冬季),白天升温对体系相互作用的影响大于夜晚降温时的影响。从骨架曲线来看，受中长期环境温度影响，整体式桥台-桩-土体系相互作用中存在由非线性向线性不断转化的过程。在加载初期，桥台转角与加载位移变化规律基本一致，随着环境温度变化，两者逐渐偏离，特别是在次年的第一季度，两者已产生较为明显的正方向偏移。
Keyword ：
台后土压力 台后土压力 季节性温度 季节性温度 整体桥 整体桥 昼夜温度 昼夜温度 桥台-桩-土相互作用 桥台-桩-土相互作用
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| GB/T 7714 | 黄福云 , 桂奎 , 易志宏 et al. 基于温度变形效应的整体式桥台-H型钢桩-土相互作用拟静力试验研究 [J]. | 铁道学报 , 2023 , 45 (03) : 109-118 . |
| MLA | 黄福云 et al. "基于温度变形效应的整体式桥台-H型钢桩-土相互作用拟静力试验研究" . | 铁道学报 45 . 03 (2023) : 109-118 . |
| APA | 黄福云 , 桂奎 , 易志宏 , 周桂吉 , 张峰 . 基于温度变形效应的整体式桥台-H型钢桩-土相互作用拟静力试验研究 . | 铁道学报 , 2023 , 45 (03) , 109-118 . |
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Abstract ：
The swelling⁃shrinkage deformation of the main girder of the integral abutment bridge caused by the ambient temperature leads to the horizontal reciprocating motion of the abutment and the interaction between the abutment⁃soil and the pile⁃soil. In this paper, based on the case study of an integral abutment bridge, a quasi⁃static test of low⁃cycle reciprocating displacement load of integral abutment⁃H⁃shaped steel pile⁃soil system based on diurnal temperature and seasonal temperature deformation effect was carried out to analyze the hysteretic behavior, skeleton curve and abutment angle of the specimens. The results show that the annual hysteretic curve of the specimen can be regarded as the super⁃ position of the hysteretic curves of seasonal temperature and diurnal temperature effects. From the point of view of sea⁃ sonal temperature effect, affected by the temperature rise in spring and summer, the MTS horizontal force increases rap⁃ idly at first. With subsequent continuous temperature rise, the horizontal force growth slows down. Under the influence of continuous temperature drop in summer and autumn, autumn and winter, the horizontal force decreases sharply at first, before decreasing slowly as the temperature continues to drop. Affected by the temperature rise in winter and spring, the horizontal force first increases sharply before slowing down. Its growth rate is similar to that of the first tem⁃ perature rise in spring and summer. Due to the cumulative effect of the soil behind the abutment, the horizontal force is even greater. From the point of view of the effect of diurnal temperature, when the ambient temperature is high (in sum⁃ mer), the effect of temperature drop at night on the interaction of the system is greater than that of temperature rise dur⁃ ing the daytime. When the ambient temperature is low (in winter), the effect of daytime temperature rise on the system interaction is greater than that of nighttime temperature drop. From the perspective of skeleton curve, due to the influ⁃ ence of medium and long⁃term ambient temperature, a process of nonlinear to linear transformation exists in the interac⁃ tion of integral abutment⁃pile⁃soil system. In the initial stage of loading, the rotation angle of the abutment is basically consistent with the change law of loading displacement. With the change of ambient temperature, the two gradually devi⁃ ate. Especially in the first quarter of the next year, the two have produced a more obvious positive direction deviation. © 2023 Science Press. All rights reserved.
Keyword ：
abutment⁃pile⁃soil interaction abutment⁃pile⁃soil interaction diurnal temperature diurnal temperature integral abutment bridges integral abutment bridges seasonal temperature seasonal temperature soil pressure behind abutment soil pressure behind abutment
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| GB/T 7714 | Huang, F. , Gui, K. , Yi, Z. et al. Study on Interaction Between Integral Abutment, H⁃shaped Steel Pile and Soil under Quasi⁃static Test Based on Temperature Deformation Effect; [基于温度变形效应的整体式桥台⁃H 型钢桩⁃土相互作用拟静力试验研究] [J]. | Journal of the China Railway Society , 2023 , 45 (3) : 109-118 . |
| MLA | Huang, F. et al. "Study on Interaction Between Integral Abutment, H⁃shaped Steel Pile and Soil under Quasi⁃static Test Based on Temperature Deformation Effect; [基于温度变形效应的整体式桥台⁃H 型钢桩⁃土相互作用拟静力试验研究]" . | Journal of the China Railway Society 45 . 3 (2023) : 109-118 . |
| APA | Huang, F. , Gui, K. , Yi, Z. , Zhou, G. , Zhang, F. . Study on Interaction Between Integral Abutment, H⁃shaped Steel Pile and Soil under Quasi⁃static Test Based on Temperature Deformation Effect; [基于温度变形效应的整体式桥台⁃H 型钢桩⁃土相互作用拟静力试验研究] . | Journal of the China Railway Society , 2023 , 45 (3) , 109-118 . |
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研究目的:半整体式桥台无伸缩缝桥(简称半整体桥)是一种新型桥梁结构形式。由于主梁与桥台刚接，在昼夜及季节性环境温度等长期作用下，主梁会使桥台沿纵桥向发生往复变位，进而引起台后土体的压力变化，产生土抗力。为研究半整体桥的台后土抗力分布规律以及中长期环境温度对土抗力的影响，开展中长期环境温度作用下半整体桥台-土相互作用拟静力试验研究。研究结论:(1)台后土抗力随环境温度变化的规律为在第1～6中周期(约对应由春季至夏季的第一个升温区间段)内快速上升，在第6～16中周期(约对应由夏季至冬季的降温区间段)内有所减小，在第16～20中周期(约对应由冬季至春季的第二个升温区间段)又开始增加，但相比于第一个升...
Keyword ：
半整体桥 半整体桥 台后土抗力 台后土抗力 季节性环境温度 季节性环境温度 拟静力试验 拟静力试验 桥梁工程 桥梁工程 累积效应 累积效应
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| GB/T 7714 | 黄福云 , 周志明 , 宋大东 et al. 环境温度作用下半整体桥台后土抗力试验 [J]. | 铁道工程学报 , 2022 , 39 (01) : 47-55 . |
| MLA | 黄福云 et al. "环境温度作用下半整体桥台后土抗力试验" . | 铁道工程学报 39 . 01 (2022) : 47-55 . |
| APA | 黄福云 , 周志明 , 宋大东 , 严爱国 , 张峰 . 环境温度作用下半整体桥台后土抗力试验 . | 铁道工程学报 , 2022 , 39 (01) , 47-55 . |
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In order to study the effect of mechanical behavior of steel H-pile foundation in integral abutment jointless bridges (IAJBs) by unbalanced earth pressure and asymmetric loading, several reciprocating low-cycle pseudo-static tests on studying the soil-steel H-pile interaction were carried out under symmetric conditions (both balance earth pressure and symmetric loading), only unbalance earth pressure (symmetric loading) and completely asymmetric conditions (both unbalance earth pressure and asymmetric loading), respectively. A comprehensively comparative study was performed to find their behaviors in terms of horizontal deformations, soil resistance, strain, and bending moment of piles. The test results indicate that the horizontal deformation of positive loading is significantly different from that of negative loading under completely asymmetric conditions. In addition, the soil resistance and bending moment of the pile are significantly larger than those of negative loading under positive loading. The unbalance earth pressure and asymmetric loading have a significant impact on the horizontal deformations, soil resistance, and the bending moment of the pile. Among them, the unbalance earth pressure induces the overall negative accumulative deformation and increases the soil resistance and the bending moment of the pile. The positive asymmetric loading decreases the horizontal deformation but increases the soil resistance and bending moment of the pile. The negative asymmetric loading decreases the horizontal deformation, soil resistance and bending moment of the pile. © 2022, Editorial Department of Journal of Hunan University. All right reserved.
Keyword ：
Abutments (bridge) Abutments (bridge) Bending moments Bending moments Piles Piles Pressure distribution Pressure distribution Retaining walls Retaining walls Soils Soils
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| GB/T 7714 | Shan, Yulin , Huang, Fuyun , Luo, Xiaoye et al. Pseudo-static Test on Interaction of Soil-Steel H-pile in Integral Abutment Jointless Bridges (IAJBs) under Asymmetric Conditions [J]. | Journal of Hunan University Natural Sciences , 2022 , 49 (3) : 175-186 . |
| MLA | Shan, Yulin et al. "Pseudo-static Test on Interaction of Soil-Steel H-pile in Integral Abutment Jointless Bridges (IAJBs) under Asymmetric Conditions" . | Journal of Hunan University Natural Sciences 49 . 3 (2022) : 175-186 . |
| APA | Shan, Yulin , Huang, Fuyun , Luo, Xiaoye , Zhang, Feng , Chen, Baochun . Pseudo-static Test on Interaction of Soil-Steel H-pile in Integral Abutment Jointless Bridges (IAJBs) under Asymmetric Conditions . | Journal of Hunan University Natural Sciences , 2022 , 49 (3) , 175-186 . |
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为研究强震和温度作用下,整体桥台产生的水平往复大位移对桥台与台后填土相互作用的影响,进行了整体桥台-H形钢桩-土相互作用拟静力试验,并基于试验结果研究了大位移作用下整体桥台后土压力的分布规律;根据台后土压力分布,提出了台后土压力合力作用点位置与加载位移之间的关系式,并在现有研究的基础上给出了改进的整体桥台后土压力计算方法.研究结果表明:正向加载(桥台挤压台后土)时,台后各处土压力随加载位移的增加先增大后减小;台背处和台后20％桥台高度处土压力受桥台位移的影响更大,沿深度方向呈梯形分布;台背处土压力分布中,由于台底H形钢桩的约束,最大土压力位于入土深度0.875 m处,台底位置的土压力则略有减小;台后60％桥台高度和1.4倍桥台高度处土压力受桥台位移影响较小,沿深度方向呈三角形分布;负向加载(桥台背离台后土)时,台后土压力沿深度方向呈三角形分布,且台后各处土压力与加载位移不相关,其值相对于正向加载时可忽略;水平往复大位移作用下,整体桥台后土会产生脱空现象,脱空范围超过桥台高度的37.5％;台后土压力沿纵桥向呈指数型衰减,且相比小位移作用下衰减得更快;台后土压力合力作用点位置随加载位移的增大而逐渐降低,且台后土压力系数与加载位移具有明显的非线性关系,呈现先增大后减小的规律;现有土压力计算方法未考虑桥台位移的影响或认为台后土压力在桥台发生小位移时随桥台位移的增大而增大,发生大位移时则基本不变;提出的土压力拟合公式的判定系数为0.92,计算值与试验值的相对误差为6.2％,可作为现有土压力计算方法的有益补充.
Keyword ：
台后土压力 台后土压力 抗震性能 抗震性能 拟静力 拟静力 整体桥 整体桥 桥梁工程 桥梁工程 计算方法 计算方法
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| GB/T 7714 | 李岚 , 黄福云 , 张峰 et al. 水平往复大位移作用下整体桥台后土压力计算方法 [J]. | 交通运输工程学报 , 2022 , 22 (5) : 173-183 . |
| MLA | 李岚 et al. "水平往复大位移作用下整体桥台后土压力计算方法" . | 交通运输工程学报 22 . 5 (2022) : 173-183 . |
| APA | 李岚 , 黄福云 , 张峰 , 刘征峰 , 陈伟 . 水平往复大位移作用下整体桥台后土压力计算方法 . | 交通运输工程学报 , 2022 , 22 (5) , 173-183 . |
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为研究不平衡土压力和非一致加载对整体桥H型钢桩基受力性能的影响，本文分别开展了完全对称条件下（土压力平衡和加载一致）、仅土压力不平衡（加载一致）和完全不对称条件下（土压力不平衡和加载不一致）H型钢桩-土相互作用拟静力试验研究，分析对比了桩身水平变形、桩侧土抗力、桩身应变和弯矩等.研究结果表明：完全不对称条件下，正负向加载时桩身水平变形存在显著差异.另外，正向加载时的桩侧土抗力和桩身弯矩显著大于负向加载时的.不平衡土压力或非一致加载对桩身水平变形、桩侧土抗力和桩身弯矩产生显著的影响.其中，不平衡土压力使桩基产生朝负向的累积变形，并增大桩侧土抗力和桩身弯矩.正向非一致加载使桩身水平变形减小，但会增...
Keyword ：
H型钢桩-土相互作用 H型钢桩-土相互作用 不平衡土压力 不平衡土压力 整体桥 整体桥 非对称加载 非对称加载
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| GB/T 7714 | 单玉麟 , 黄福云 , 罗小烨 et al. 非对称条件下整体桥H型钢桩-土相互作用拟静力试验研究 [J]. | 湖南大学学报(自然科学版) , 2022 , 49 (03) : 175-186 . |
| MLA | 单玉麟 et al. "非对称条件下整体桥H型钢桩-土相互作用拟静力试验研究" . | 湖南大学学报(自然科学版) 49 . 03 (2022) : 175-186 . |
| APA | 单玉麟 , 黄福云 , 罗小烨 , 张峰 , 陈宝春 . 非对称条件下整体桥H型钢桩-土相互作用拟静力试验研究 . | 湖南大学学报(自然科学版) , 2022 , 49 (03) , 175-186 . |
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Research purposes: Semi-integral abutment jointless bridge (SAJB) is a new type of bridge structure. Due to the rigid connection of main girder and abutment, the main girder will induce the bridge abutment to undergo reciprocating displacement along the longitudinal bridge direction, which results the changes of soil resistance behind the abutment under the long-term effects of diurnal and seasonal ambient temperature. In order to study the distribution law of the soil resistance behind the abutment and the influence of the medium long-term ambient temperature on it, a quasi-static test of the semi-integral abutment-soil interaction was carried out under medium and long-term ambient temperature. Research conclusions:(1) The soil resistance with the ambient temperature rises rapidly in the 1st to 6th middle period (the first warming interval from spring to summer), then decrease in the 6th to 16th middle period (the period from summer to summer). In the 16th to 20th middle period (the second warming interval from winter to spring), it starts to increase again, but the increase rate is slightly slow compared to the first warming interval. (2) The soil resistance along the buried depth increases firstly until reaching the maximum at the buried depth of 0.8h, and then decreases under the medium long-term ambient temperature. (3) The law of soil resistance along longitudinal direction in each period is that in the area near the abutment, the soil resistance decreases rapidly; while in the area far away from the abutment, the soil resistance decreases slowly to 0 at the position 1.0h away from the abutment. (4) After a large period of ambient temperature, the soil resistance behind the abutment has a significant cumulative increasing effect, and its cumulative effect has a strong correlation with the longitudinal position and vertical depth of the soil. (5) The research results can provide references for the design of semi-integral bridges and the formulation of related specifications. © 2022, Editorial Department of Journal of Railway Engineering Society. All right reserved.
Keyword ：
Abutments (bridge) Abutments (bridge) Beams and girders Beams and girders Soils Soils Temperature Temperature
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| GB/T 7714 | Huang, Fuyun , Zhou, Zhiming , Song, Dadong et al. Experiment on the Soil Resistance behind Abutment of Semi-integral Abutment Jointless Bridge under Ambient Temperature [J]. | Journal of Railway Engineering Society , 2022 , 39 (1) : 47-55 . |
| MLA | Huang, Fuyun et al. "Experiment on the Soil Resistance behind Abutment of Semi-integral Abutment Jointless Bridge under Ambient Temperature" . | Journal of Railway Engineering Society 39 . 1 (2022) : 47-55 . |
| APA | Huang, Fuyun , Zhou, Zhiming , Song, Dadong , Yan, Aiguo , Zhang, Feng . Experiment on the Soil Resistance behind Abutment of Semi-integral Abutment Jointless Bridge under Ambient Temperature . | Journal of Railway Engineering Society , 2022 , 39 (1) , 47-55 . |
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A styrene-butadiene-styrene (SBS) modified asphalt compound was prepared by the addition of polyphosphoric acid (PPA) and sulfur. The effect of PPA and sulfur on major physical properties, including toughness and tenacity, aging resistance, and storage stability was investigated. The structural characteristics of SBS-modified (SM) asphalt, SBS/PPA-modified (SPM) asphalt, and SBS/PPA/sulfur-modified (SPSM) asphalt were investigated using scanning electron microscopy (SEM), gel filtration chromatography (GPC), and thermal analysis. It has been found that acidification prompted the clustering of SBS particles and confined the swelling of SBS, making SPM asphalt more susceptible to aging. Vulcanization changed the morphological characteristics of SBS in asphalt, improved the compatibility between SBS and asphalt, and weakened the aging susceptibility. Therefore, it is reasonable to modify SM asphalt by using PPA and sulfur together.
Keyword ：
asphalt asphalt polyphosphoric acid polyphosphoric acid styrene-butadiene-styrene styrene-butadiene-styrene sulfur sulfur
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| GB/T 7714 | Zhang, Feng , Li, Lei . Effect mechanism of acidification and vulcanization on SBS-modified asphalt [J]. | INTERNATIONAL POLYMER PROCESSING , 2022 , 37 (5) : 559-567 . |
| MLA | Zhang, Feng et al. "Effect mechanism of acidification and vulcanization on SBS-modified asphalt" . | INTERNATIONAL POLYMER PROCESSING 37 . 5 (2022) : 559-567 . |
| APA | Zhang, Feng , Li, Lei . Effect mechanism of acidification and vulcanization on SBS-modified asphalt . | INTERNATIONAL POLYMER PROCESSING , 2022 , 37 (5) , 559-567 . |
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To analyze the effect of horizontal reciprocating large displacement generated by the abutment on the interaction between the abutment and the backfill behind the abutment under the actions of strong earthquake and temperature, a quasi-static test for the interaction among the integral abutment, H-shaped steel pile, and soil was carried out. On the basis of the test results, the distribution law of the earth pressure behind the integral abutment under the action of large displacement was studied. According to the distribution of the earth pressure behind the abutment, the relational expression between the action point location of the resultant earth pressure behind the abutment and the loading displacement was proposed, and an improved calculation method for the earth pressure behind the integral abutment was given based on the existing research. Research results indicate that when the abutment is loaded in the positive direction (the abutment squeezes the soil behind the abutment), the earth pressure behind the abutment first increases and then decreases as the loading displacement rises. Earth pressures at the abutment back and 20% of the abutment height behind the abutment are highly affected by the abutment displacement and has a trapezoidal distribution along the depth direction. In the earth pressure distribution at the abutment back, due to the constraint of H-shaped steel pile at the bottom of the abutment, the maximum earth pressure is located at a depth of 0.875 m, and the earth pressure at the bottom of the abutment decreases slightly. Earth pressures at 60% of the abutment height and 1.4 times the abutment height behind the abutment are less affected by the abutment displacement and is triangularly distributed along the depth direction. When the abutment is loaded in the negative direction (the abutment deviates from the soil behind the abutment), the earth pressure behind the abutment is triangularly distributed along the depth direction, and the earth pressure behind the abutment has no connection with the loading displacement, and its value can be neglected relative to the positive loading. Under the action of a horizontal reciprocating large displacement, the soil behind the integral abutment will face a void phenomenon, and the void range will exceed 37.5% of the abutment height. The earth pressure behind the abutment reduces exponentially along the longitudinal direction, and it reduces faster than that under the action of a small displacement. The action point location of the resultant earth pressure behind the abutment decreases gradually as the loading displacement increases, and the earth pressure coefficient behind the abutment has an obvious nonlinear relationship with the loading displacement, which is reflected by the law of first increasing and then decreasing. Existing earth pressure calculation methods do not take into account the effect of the abutment displacement or consider that the earth pressure behind the abutment rises with the increase in the abutment displacement when small displacements occur and remains basically unchanged when large displacements occur. The determination coefficient of the proposed earth pressure fitting formula is 0.92, and the relative error between the calculated value and the test value is 6.2%, which can be a useful supplement to the existing earth pressure calculation methods. © 2022 Chang'an University. All rights reserved.
Keyword ：
Abutments (bridge) Abutments (bridge) Piles Piles Pressure distribution Pressure distribution Retaining walls Retaining walls Seismology Seismology Soils Soils
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| GB/T 7714 | Li, Lan , Huang, Fu-Yun , Zhang, Feng et al. Calculation method for earth pressure behind integral abutment under horizontal reciprocating large displacement [J]. | Journal of Traffic and Transportation Engineering , 2022 , 22 (5) : 173-183 . |
| MLA | Li, Lan et al. "Calculation method for earth pressure behind integral abutment under horizontal reciprocating large displacement" . | Journal of Traffic and Transportation Engineering 22 . 5 (2022) : 173-183 . |
| APA | Li, Lan , Huang, Fu-Yun , Zhang, Feng , Liu, Zheng-Feng , Chen, Wei . Calculation method for earth pressure behind integral abutment under horizontal reciprocating large displacement . | Journal of Traffic and Transportation Engineering , 2022 , 22 (5) , 173-183 . |
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为探究整体式桥台无缝桥(简称整体桥)预应力混凝土桩吸纳上部结构变形的能力,对3根不同预应力的缩尺模型桩PC-1～PC-3进行了拟静力试验。利用布设于桩身表面的土压力计、位移计、应变片等,研究了预应力混凝土桩的破坏模式和变形规律,并与埋深不同且未施加预应力的混凝土桩对比,进一步说明预应力对柔性桩变形能力的影响;通过与普通混凝土桩的对比,以临界荷载、屈服荷载、峰值荷载为评价指标,分析了预应力对试验桩强度和变形的影响。结果表明:随着预应力度的增大,模型桩的破坏形态由多条裂缝向1条主要裂缝转变;PC-2和PC-3主要裂缝出现位置分别较PC-1沿埋深方向增大0.4倍和0.6倍桩径,说明预应力度的提高增大...
Keyword ：
变形能力 变形能力 拟静力试验 拟静力试验 整体式桥台无缝桥 整体式桥台无缝桥 桥梁工程 桥梁工程 桩-土相互作用 桩-土相互作用 预应力桩 预应力桩
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| GB/T 7714 | 黄福云 , 何凌峰 , 单玉麟 et al. 整体桥预应力桩-土相互作用试验 [J]. | 建筑科学与工程学报 , 2021 , 38 (01) : 31-40 . |
| MLA | 黄福云 et al. "整体桥预应力桩-土相互作用试验" . | 建筑科学与工程学报 38 . 01 (2021) : 31-40 . |
| APA | 黄福云 , 何凌峰 , 单玉麟 , 王静杰 , 张峰 . 整体桥预应力桩-土相互作用试验 . | 建筑科学与工程学报 , 2021 , 38 (01) , 31-40 . |
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