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《结构与土木工程前沿(英文)》 2021年 第15卷 第3期 页码 781-792 doi: 10.1007/s11709-021-0733-9
关键词: lightweight cellular concrete construction-induced damage freeze-thaw action microstructure degradation mechanism
Temperature and structural responses of a single-section utility tunnel throughout fire exposure
Yanmin YANG; Ying XIONG; Yongqing LI; Xiangkun MENG; Peng WANG; Tianyuan CAI
《结构与土木工程前沿(英文)》 2022年 第16卷 第10期 页码 1351-1364 doi: 10.1007/s11709-022-0857-6
关键词: full lightweight concrete construction methods temperature response structural response fire test
Quality evaluation of lightweight cellular concrete by an ultrasound-based method
Xin LIU; Dongning SUN; Jinhe LIAO; Zhiwei SHAO; Yunqiang SHI; Siqing ZHANG; Yunlong YAO; Baoning HONG
《结构与土木工程前沿(英文)》 2022年 第16卷 第9期 页码 1170-1182 doi: 10.1007/s11709-022-0874-5
关键词: lightweight cellular concrete subgrade ultrasound testing quality evaluation crack discrimination
《结构与土木工程前沿(英文)》 2023年 第17卷 第5期 页码 704-721 doi: 10.1007/s11709-023-0941-6
关键词: precast steel–UHPC composite beam flexural performance longitudinal shear performance parametric study transverse reinforcement ratio
Precast steel–UHPC lightweight composite bridge for accelerated bridge construction
Shuwen DENG, Xudong SHAO, Xudong ZHAO, Yang WANG, Yan WANG
《结构与土木工程前沿(英文)》 2021年 第15卷 第2期 页码 364-377 doi: 10.1007/s11709-021-0702-3
关键词: accelerated bridge construction ultrahigh-performance concrete steel–UHPC composite bridge UHPC girder-to-girder joint
Experimental study on concrete box culverts in trenches
Baoguo CHEN, Junjie ZHENG, Jie HAN
《结构与土木工程前沿(英文)》 2009年 第3卷 第1期 页码 73-80 doi: 10.1007/s11709-009-0008-3
关键词: culvert vertical earth pressure soil arch full-scale experiment numerical simulation
Analysis and design of steel-concrete composite sandwich systems subjected to extreme loads
Kazi Md Abu SOHEL, Jat Yuen Richard LIEW, Min Hong ZHANG
《结构与土木工程前沿(英文)》 2011年 第5卷 第3期 页码 278-293 doi: 10.1007/s11709-011-0120-z
关键词: blast load composite structure impact load lightweight concrete sandwich plate J-hook connector
Consumption of carbon fiber plates in the reinforced concrete beams strengthened with CFPs
BU Liangtao, SHI Chuxian, SONG Li
《结构与土木工程前沿(英文)》 2007年 第1卷 第4期 页码 393-398 doi: 10.1007/s11709-007-0053-8
Shear design of high strength concrete prestressed girders
Emad L. LABIB,Hemant B. DHONDE,Thomas T. C. HSU,Y. L. MO
《结构与土木工程前沿(英文)》 2014年 第8卷 第4期 页码 373-387 doi: 10.1007/s11709-014-0087-7
关键词: shear design high strength concrete prestressed girders full-scale tests
Thomas ELLINGHAM, Hrishikesh KHARBAS, Mihai MANITIU, Guenter SCHOLZ, Lih-Sheng TURNG
《机械工程前沿(英文)》 2018年 第13卷 第1期 页码 96-106 doi: 10.1007/s11465-018-0498-6
A three-stage molding process involving microcellular injection molding with core retraction and an “out-of-mold” expansion was developed to manufacture thermoplastic polyurethane into lightweight foams of varying local densities, microstructures, and mechanical properties in the same microcellular injection molded part. Two stages of cavity expansion through sequential core retractions and a third expansion in a separate mold at an elevated temperature were carried out. The densities varied from 0.25 to 0.42 g/cm3 (77% to 62% weight reduction). The mechanical properties varied as well. Cyclic compressive strengths and hysteresis loss ratios, together with the microstructures, were characterized and reported.
关键词: thermoplastic polyurethane microcellular injection molding cavity expansion compressive strength hysteresis loss ratio
A lightweight authentication scheme with user untraceability
Kuo-Hui YEH
《信息与电子工程前沿(英文)》 2015年 第16卷 第4期 页码 259-271 doi: 10.1631/FITEE.1400232
关键词: Authentication Privacy Security Smart card Untraceability
方志,唐盛华,何鑫
《中国工程科学》 2012年 第14卷 第10期 页码 73-81
对一片30 m跨的预应力混凝土小箱梁和一片20 m跨的预应力混凝土空心板进行了足尺模型试验,破坏模式分别为预应力筋拉断和顶板混凝土压碎,按能量的观点计算的延性指标小箱梁和空心板分别为1.99和1.23。基于平截面假定,采用有限条带法编制了非线性计算程序,可对包括卸载过程在内的全过程受力性能进行分析。重点介绍了卸载曲线如何在应力-应变、弯矩-曲率及荷载-位移3个层面进行计算。通过程序,对预应力筋配筋量、预应力筋张拉系数对结构的承载力、变形性能及延性的影响进行了分析。
郑开启,卜红旗,刘钊,惠卓,吕志涛
《中国工程科学》 2013年 第15卷 第8期 页码 89-94
以南京长江第四大桥引桥为背景,开展了一孔48 m跨径体内-体外混合配束节段预制拼装箱梁的足尺模型试验,以研究该类箱梁在正常使用阶段和施工状态下的结构行为。根据试验箱梁的尺寸参数以及实际约束条件确定了拼装与加载方案。本文重点研究正常使用荷载和梁上运梁两种工况下梁体应力状况与位移变化等结构静力性能,并与试验梁实体有限元模型进行对比分析。研究结果表明:在正常使用阶段,加、卸载后拼装梁体残余变形较小,基本处于弹性工作状态,整体性较好;键齿接缝两侧基本无相对滑移,接缝截面纵向应变沿梁高大致呈线性变化,力学行为基本符合平截面假定;体外预应力束在转向处基本无滑移,体内外预应力增量随跨中弯矩基本呈线性变化;在梁上运梁工况下,实测梁体下缘压应力储备充足,满足运梁安全性要求。
Investigating the raveling test for full-depth reclamation
Robert HILL, Andrew BRAHAM
《结构与土木工程前沿(英文)》 2018年 第12卷 第2期 页码 222-226 doi: 10.1007/s11709-017-0423-9
A novel approach to preparing ultra-lightweight ceramsite with a large amount of fly ash
Sen Liu, Congren Yang, Wei Liu, Longsheng Yi, Wenqing Qin
《环境科学与工程前沿(英文)》 2020年 第14卷 第4期 doi: 10.1007/s11783-020-1241-1
关键词: Fly ash Ultra-lightweight ceramsite Expansion mechanism Sintering process
标题 作者 时间 类型 操作
Influence of construction-induced damage on the degradation of freeze–thawed lightweight cellular concrete
期刊论文
Temperature and structural responses of a single-section utility tunnel throughout fire exposure
Yanmin YANG; Ying XIONG; Yongqing LI; Xiangkun MENG; Peng WANG; Tianyuan CAI
期刊论文
Quality evaluation of lightweight cellular concrete by an ultrasound-based method
Xin LIU; Dongning SUN; Jinhe LIAO; Zhiwei SHAO; Yunqiang SHI; Siqing ZHANG; Yunlong YAO; Baoning HONG
期刊论文
Flexural and longitudinal shear performance of precast lightweight steel–ultra-high performance concrete
期刊论文
Precast steel–UHPC lightweight composite bridge for accelerated bridge construction
Shuwen DENG, Xudong SHAO, Xudong ZHAO, Yang WANG, Yan WANG
期刊论文
Analysis and design of steel-concrete composite sandwich systems subjected to extreme loads
Kazi Md Abu SOHEL, Jat Yuen Richard LIEW, Min Hong ZHANG
期刊论文
Consumption of carbon fiber plates in the reinforced concrete beams strengthened with CFPs
BU Liangtao, SHI Chuxian, SONG Li
期刊论文
Shear design of high strength concrete prestressed girders
Emad L. LABIB,Hemant B. DHONDE,Thomas T. C. HSU,Y. L. MO
期刊论文
Microcellular injection molding process for producing lightweight thermoplastic polyurethane with customizable
Thomas ELLINGHAM, Hrishikesh KHARBAS, Mihai MANITIU, Guenter SCHOLZ, Lih-Sheng TURNG
期刊论文