苏州混凝土水泥制品研究院有限公司

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发布时间:2020-01-06 00:00:00
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房建材料及制品

GFRP增强海水海砂混凝土柱轴压性能研究
GFRP增强海水海砂混凝土柱轴压性能研究
  • 李佳敏a,杨树桐b,刘 畅b
2022年第7期
摘要
引用本文
摘   要:研究了GFRP纵筋与GFRP箍筋共同作用、GFRP管与GFRP筋共同作用对海水海砂混凝土(SSC)柱轴压性能的影响。结果表明:随着GFRP纵筋配筋率的增加,SSC柱的极限承载力相比对照组提高了4.3%~49.8%;采用GFRP管与GFRP筋共同增强后,SSC柱的承载力和延性进一步提高,试件破坏后整体形状完整,破坏形式得到了改善。 Abstract: The effects of the interaction of GFRP longitudinal bar and GFRP stirrup and the interaction of GFRP pipe and GFRP bar on the axial compressive behavior of seawater sea sand concrete(SSC) columns were studied. The results show that with the increase of GFRP longitudinal bar ratio, the ultimate bearing capacity of SSC column increases by 4.3%~49.8% compared with the control group. The bearing capacity and ductility of SSC column are further improved after GFRP pipe and GFRP bar are used, and the overall shape of the specimen after failure is complete and the failure form is improved.
李佳敏,杨树桐,刘畅.GFRP增强海水海砂混凝土柱轴压性能研究[J].混凝土与水泥制品,2022(7):69-73,79. LI J M,YANG S T,LIU C.Study on Axial Compressive Behavior of Seawater Sea Sand Concrete Columns Reinforced with GFRP[J].China Concrete and Cement Products,2022(7):69-73,79.
装配式钢骨增强微孔混凝土复合楼板力学性能试验研究
装配式钢骨增强微孔混凝土复合楼板力学性能试验研究
  • 王洪镇1,王海瑞1,苏明明2,马得俊2,马 寿2,马亮亮3
2022年第7期
摘要
引用本文
摘   要:为研究实际工程中装配式钢骨增强微孔混凝土复合楼板的承载能力,通过静载试验,得到了其荷载-挠度曲线和裂缝长期发展特征,并对该复合楼板进行了配筋计算、裂缝宽度和挠度验算。此外,采用有限元软件MARC对复合楼板进行了受力分析,并与试验结果进行了对比,发现两者吻合程度较高。研究结果可为相关复合楼板的设计提供参考。 Abstract: In order to study the bearing capacity of prefabricated steel reinforced microporous concrete composite floor slabs in practical engineering, the loading-deflection relationship and the long-term crack development characteristics of the composite floor slabs were obtained by static loading test. The reinforcement calculation, crack width and deflection checking  calculation were carried out. The finite element software MARC was used to analyze the stress state of the composite structure slabs, and the results were compared with the test results. The results show that the stress states of theoretical calculation and simulation analysis are quite consistent, which provides a reference for the design of composite structure slabs.
王洪镇,王海瑞,苏明明,等.装配式钢骨增强微孔混凝土复合楼板力学性能试验研究[J].混凝土与水泥制品,2022(7):74-79. WANG H Z,WANG H R,SU M M,et al.Experimental Study on Mechanical Properties of Prefabricated Steel Reinforced Microporous Concrete Composite Floor Slabs[J].China Concrete and Cement Products,2022(7):74-79.
添加纤维材料的混凝土预制复合墙体应用分析
添加纤维材料的混凝土预制复合墙体应用分析
  • 张亚东1,段宜栋2,梁美清3
2022年第7期
摘要
引用本文
摘   要:采用MATLAB软件中的识别图像控制技术,对典型混凝土图像数据进行处理,还原了混凝土中骨料的真实排布情况,同时,探究了基于装配式预制部品部件的保温一体化复合墙体的新型构造形式。结果表明:在混凝土中添加纤维材料可有效控制复合墙体的开裂问题;采用外叶板+保温板+内叶墙的“夹心保温三明治板”构造形式可有效解决装配式建筑底部加强区所用墙体超宽、超高及外窗开洞存在的问题。 Abstract: Using the recognition image control technology in MATLAB software, the typical concrete image data were processed to restore the real arrangement of aggregate in concrete. At the same time, the new structural form of thermal insulation integratedcomposite wall based on prefabricated components was explored. The results show that adding fiber materials to concrete can effectively control the cracking of composite wall. The structural form of "sandwich thermal insulation sandwich plate" with outer leaf plate and thermal insulation plate and inner leaf wall can effectively solve the existing thorny problems of super width, super height and additional window holes of the wall used in the bottom reinforcement area of prefabricated buildings.
张亚东,段宜栋,梁美清.添加纤维材料的混凝土预制复合墙体应用分析[J].混凝土与水泥制品,2022(7):80-82. ZHANG Y D,DUAN Y D,LIANG M Q.Structural Analysis of Precast Concrete Composite Wall with Fiber Materials[J].China Concrete and Cement Products,2022(7):80-82.
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