Results 11 to 20 of about 1,048 (134)
Jianzhu Gangjiegou Jinzhan, 2002 本文提出了一个表达半刚性连接M-θ非线性关系的二维模型。通过控制形参数α和n,所提出的模型能够较为精确的描述几乎各种连接形式的M-θ关系。由于这两个形参数没有物理意义,因此通过半分析方法得到了初始刚度Ki和塑性刚度Kp,用以优化α和n的数值 ...
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Analysis of the composite mechanical properties of the substructure of a masonry pagoda [PDF]
, 2022 Brick wall tubes, a popular form of ancient masonry pagoda, can be seen as a spatial lateral force resistance system. The masonry of the ancient pagoda is a case of compression and shear developed due to earthquakes.
Jin-xin FAN +3 more
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Axial compressive behavior of GFRP-timber-reinforced concrete composite columns
Low-carbon Materials and Green Construction, 2023 本文提出了一种由外层玻璃纤维增强复合材料（GFRP）布、内部填充泡桐木芯和钢筋混凝土组成的组合柱 （GTRC柱）。对13个GTRC柱试件进行了轴心受压试验，研究了不同木芯直径、长细比和GFRP层数/铺层角度 对其力学性能的影响规律。结果表明，随着木芯直径的增加，组合柱的延性和耗能能力分别增加了52.6%和 21.6%，而极限承载力和初始刚度略有下降。另外，GFRP布显著提高了其极限受压承载能力、刚度、延性和 能量耗散能力，分别提高了212.1%、26.6%、64.3%和3820%。此外 ...
Fubin Zhang +5 more
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Mechanical behavior and seismic design of a frame-supported grid-mode lightweight slab structure [PDF]
, 2016 Based on seismic performance tests on frame-supported grid-mode lightweight slab structure(FSGL slab structure) specimens,the mechanical behavior of the structure was quantitatively analyzed and seismic design suggestions were put forward.
CAO Wan-lin, JIA Sui-zi, YUAN Quan
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Compression behavior and energy-absorption characteristic of aluminum honeycomb material with polyurethane filler [PDF]
, 2016 Static compression experiments were conducted on hollow aluminum honeycomb (hexagon aperture), polyurethane, and aluminum honeycomb filled with polyurethane.
SONG Yu-huan, XIAO Jiu-mei
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Numerical simulation study and damage analysis of cross laminated timber connections [PDF]
, 2016 Due to structural redundancy,strong energy absorption and energy dissipation capacity of nail joints,wood buildings behave good seismic performance in earthquakes. Cross laminated timber is a new generation of engineered wood-based product.
Johannes Schneider +3 more
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Jianzhu Gangjiegou Jinzhan, 2021 在采用橡胶隔震支座的大跨空间结构中,其支座的上下表面常常存在相对转角,针对这一问题,从两个方向对上下表面有相对转角的橡胶隔震支座的水平力学性能进行了研究。在转角为0.005 rad、0.01 rad和0.015 rad的情况下,对橡胶隔震支座进行了水平力学性能试验,试验结果表明,支座水平刚度会随转角的增大而减小。然后,运用ABAQUS软件进行了有限元模拟分析,对试验结果和有限元结果进行对比验证。最后,通过ABAQUS软件对有初始转角的橡胶隔震支座进行了参数分析。结果表明 ...
徐忠根 +4 more
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Jianzhu Gangjiegou Jinzhan, 2023 高大施工支架是大跨度复杂桥梁工程中常用的钢结构支撑系统。实际工程中由于高大施工支架加工安装误差、超限受力或不均匀受力等影响，会导致钢结构施工支架存在节点连接不牢固、杆件弯曲变形等初始缺陷。为明晰初始缺陷对桥梁高大施工支架整体稳定性能的影响规律，首先开展了桥梁高大施工支架的线性屈曲分析；进而探讨了节点半刚性、杆件初弯曲等初始缺陷对桥梁高大施工支架极限承载力的影响规律。为提高桥梁高大施工支架极限承载力的求解精度，引入刚度系数α来衡量节点半刚性值，综合考虑节点体对杆件计算长度的影响 ...
唐永 +5 more
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Jianzhu Gangjiegou Jinzhan, 2021 为了研究部分包裹混凝土组合(PEC)柱(弱轴)与型钢梁对穿高强螺栓端板连接节点的抗震性能,考虑端板厚度、盖板厚度以及节点构造形式3个参数,设计了两种不同构造的梁柱节点,对其进行低周往复荷载试验和有限元模拟,分析了各设计参数对试验节点滞回性能、承载能力、节点刚度、延性和耗能能力等指标的影响。研究结果表明:盖板厚度由14mm增加至16mm时,节点承载力提高了33.91%,初始刚度提高了14.9%,延性降低了18.9%;端板厚度由12mm增加至14mm时,节点承载力提高了19.93%,初始刚度提高了15.1%,
赵根田 +5 more
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Jianzhu Gangjiegou Jinzhan, 2023 带可更换梁段的钢框架端板式梁柱节点（RSFEBJ）是一种地震失效后可更换和修复的新型节点，该RSFEBJ与柱和梁端均采用端板式连接。通过组件法来研究RSFEBJ的初始转动刚度，综合考虑了柱腹板拉、压、剪变形及翼缘弯曲变形、梁柱端板受弯变形、连接端板（1、2）拉压及弯曲变形、梁腹板受剪及螺栓受拉变形对其的影响，建立了简化的弹簧模型，并在此基础上提出各组件的刚度计算公式。通过与课题组已开展的不同削弱形式下的RSFEBJ抗震性能有限元分析结果对比，理论值与有限元值之比均值为0.98，标准差为0.07 ...
郑宏 +5 more
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