风吸力下檩条承载性能中外规范比较 by 栾蔚, 李元齐

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辊压机辊轴快速拆卸复合结构应力分析及应用研究 by 张胜泉, 边汉民, 宋亚杰, 孙学娟

“…It’s difficult to dismantle the reducer and bearings,when maintaining the roller press.So a new structure related to a link construction between the output shaft of the reducer and the axis was designed to replace them quickly.The construction mainly used end face key connection and bolt connection to transfer the torque and bending moment.However when caculating the stress of the structure by hand,it’s difficult to allot the proportion load between the key and bolts.Ansys software was used to analyze the stress of the structure.The quick replacing structure was modeled,meshed,constrained and loaded.Different detailed structure and bolt preload was considered.The analysis result shows that the preload affects composite structure stress the most.Structural change has a certain effect on the composite structure stress.The materials of bolts and key have great influence on the bearing capacity of composite structure.For RP140-65 roller press,the optimum parameters are selected.The preload should be set to 200 kN～ 250 kN.Non-through keyway composite structure makes the key stress lower.Key material should be selected higher performance than 45 steel.Bolts performance class should bet 12.9.After the drawings was designed,the structure was manufactured and put into operation.It’s proved that the structure design is reliable after it has run for five years.This design method can be popularized and applied in the design of roller press.…”
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弯曲荷载作用下平板贯穿裂纹钻孔止裂试验研究 by 姚悦, 傅中秋, 王益逊, 吉伯海

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Buildings, Causalities, and Injuries Innovative Fuzzy Damage Model during Earthquakes by Mohammad Reza Amiri Shahmirani, Abbas Akbarpour Nikghalb Rashti, Mohammad Reza Adib Ramezani, Emadaldin Mohammadi Golafshani

“…It should be noted that buildings with steel and concrete structures and moment frames, in the night, day, and traffic time scenarios, have very limited type 3 and 4 injuries with 32, 24, and 16 people, respectively, but type 1 and 2 injuries are significant. …”
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A novel structure luminous flexible fiber was prepared via aerosol jet printing by Keke Wang, Zhi Liu, Chenxin Zhou, Baixiong Liu, Feng Gu, Shixian Xiong, Jianfeng Liu, Munan Yang

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负弯矩区钢-SFRC组合桥面板抗弯性能试验研究 by 朱宏平, 朱爱珠, 李正, 张朋

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管中管混凝土柱轴压情况下受力性能研究 by 万城勇, 查晓雄, 王成武, 夏斌, 陈青山

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带T形加劲肋双钢板组合剪力墙数值模拟研究 by 姜宝龙, 李英民, 唐洋洋, 姬淑艳, 熊涛, 丁以舜

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钢板单面外包混凝土组合剪力墙栓钉剪力需求 by 李帅, 顾强

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环形张拉整体式穹顶结构拉索失效研究 by 冯晓东, 胡晋荣, 撒剑波, 杨伟家, 罗尧治

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有限元模拟膜张力计的平面内张力-平面外位移关系 by 邓长根, 于华南

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厦门国际中心钢结构施工关键技术 by 张少彪

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MICROSTRUCTURE DESIGN AND MECHANICAL PROPERTIES ANALYSIS OF POROUS BONE WITH NEGATIVE POISSION’S RATIO (MT) by YE JianHua, LI DongYu, LIN Jia, ZENG ShouJin, WEI TiePing, XU MingSan

“…The experimental results show that the auxetic structure has good manufacturability, and the forming quality is correlated with the concave angle and porosity.The mechanical properties of negative Poisson’s ratio auxetic structure are highly dependent on the geometric structure and porosity of the cell.Compared with the positive Poisson’s ratio structure, the auxetic structure with negative Poisson’s ratio has lower elastic modulus and similar yield strength under the same porosity, and can control the 316 L stainless steel bone material with wide span elastic modulus by 0.47 GPa～1.75 GPa.Therefore, the negative Poisson’s ratio auxetic microstructure has potential advantages in the application of human bone structure.…”
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火灾下螺纹锚固螺栓T形连接承载力设计方法 by 鲁永贵, 尤洋, 张文超, 宋杰, 王培军

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内置横向插板加强空间相贯圆钢管节点受力性能研究 by 郭杰, 杜新喜, 袁焕鑫, 程晓燕, 尹鹏飞, 袁理明

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带PEC端柱混凝土剪力墙抗震性能试验研究 by 李奉阁, 陈玥, 赵根田

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不同地震动输入下弦支穹顶结构的动力稳定性 by 刘慧娟, 罗永峰, 杨绿峰, 韩庆华

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Wave Attenuation and Dispersion in a 6 mm Diameter Viscoelastic Split Hopkinson Pressure Bar and Its Correction Method by Haotian Zhang, Linjian Ma, Zongmu Luo, Ning Zhang

“…Furthermore, it is preferred to adopt the propagation coefficient obtained at low impact velocity for correction when the impact velocity varies. Moreover, the PMMA-steel bar impact test was performed to further illustrate the accuracy of the propagation coefficient and the effectiveness of the correction method.…”
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Temperature Changes of Pulp Chamber during In Vitro Laser Welding of Orthodontic Attachments by Eren İşman, Rıdvan Okşayan, Oral Sökücü, Serdar Üşümez

“…Twenty five mm length of 0.6 mm diameter orthodontic stainless steel wires was welded to the orthodontic band using Nd : YAG laser operated at 9.4 watt. …”
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Life cycle sustainability assessment and optimization of seismic retrofit solutions for RC frame structures by Hafiz Asfandyar Ahmed, Zhenru Wang, Yaohan Li

“…A non-linear finite element analysis is performed to evaluate the seismic capacity enhancement of various retrofit strategies, including steel jacketing, RC jacketing, and engineered cementitious composite (ECC) jacketing. …”
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