|
|
竹筋混凝土梁工作性能研究
|
Abstract:
以竹筋代替钢筋的竹筋混凝土受弯构件既能够减少建筑行业对钢材的需求，又能够减少碳排放。文章通过综合因素折减系数法给出了胶合竹抗拉强度设计值的推荐值。通过已有试验数据，分析了竹筋与混凝土粘结与锚固、竹筋混凝土梁受弯性能。结果表明，适当提高配筋率能够有效提高竹筋混凝土梁的受弯承载力。文章认为，竹筋混凝土梁能够满足低地震烈度区域单层或多层住宅建筑的承载力要求。
Bamboo-reinforced concrete flexural members with bamboo reinforcement instead of steel bars can not only reduce the demand for steel in the construction industry, but also reduce carbon emissions. This paper gives the recommended tensile strength design value of glued laminated bamboo through reduction coefficient method. Based on existing test data, this paper analyses the bonding and anchoring performance between bamboo and concrete and the flexural performance of bamboo-reinforced concrete beam. The results show that the flexural bearing capacity of bamboo reinforced concrete beam can be increased effectively by appropriately increasing the reinforcement ratio. This paper believes that bamboo-reinforced concrete beams can meet the requirements of single-storey or multi-storey residential buildings in areas with low seismic intensity.
| [1] | Sajjad, Q., Asif, H., Rayed, A., et al. (2020) Flexural Strength Improvement in Bamboo Reinforced Concrete Beams Subjected to Pure Bending. Journal of Building Engineering, 31, Article ID: 101289.
https://doi.org/10.1016/j.jobe.2020.101289 |
| [2] | Lo, T.Y., Cui, H.Z. and Leung, H.C. (2004) The Effect of Fiber Density on Strength Capacity of Bamboo. Materials Letters, 58, 2595-2598. https://doi.org/10.1016/j.matlet.2004.03.029 |
| [3] | 肖岩, 杨瑞珍, 单波, 佘立永, 李磊. 结构用胶合竹力学性能试验研究[J]. 建筑结构学报, 2012, 33(11): 150-157. |
| [4] | 于金光, 郝际平, 田黎敏, 邓光睿. 圆竹的力学性能及影响因素研究[J]. 西安建筑科技大学学报(自然科学版), 2018, 50(1): 30-36. |
| [5] | 祝明桥, 张紫薇, 王华, 龙勇. 竹材力学性能及混凝土环境中影响[J]. 湖南科技大学学报(自然科学版), 2020, 35(3): 50-56. |
| [6] | 邵卓平, 黄盛霞, 吴福社, 周亮, Clement. Arnaud.毛竹节间材与节部材的构造与强度差异研究[J]. 竹子研究汇刊, 2008(2): 48-52. |
| [7] | 单波, 肖岩, 陈杰. 格鲁斑胶合竹耐候性能的试验研究[J]. 工业建筑, 2015, 45(4): 26-32. |
| [8] | Yu, H.Q., Jiang, Z.H., Hse, C.Y. and Shupe, T.F. (2008) Selected Physical and Mechanical Properties of Moso Bamboo (Phyllostachys pubescens). Journal of Tropical Forest Science, 20, 258-263. |
| [9] | Ghavami, K. and Marinho, A.B. (2001) Determini？？o das propriedadesmecanicas dos bambus das especies: Moso, matake, Guaduaangustifolia, guaduat-agoara e Dendrocalamusgiganteus, para utiliza？？onaengenharia. PUC-Rio, Publica？？o RMNC-1 Bambu 01/2001, Rio de Janeiro. (In Portuguese) |
| [10] | Sharma, B., Gatóo, A., Bock, M., et al. (2015) Engineered Bamboo for Structural Applica-tions. Construction and Building Materials, 81, 66-73. https://doi.org/10.1016/j.conbuildmat.2015.01.077 |
| [11] | 王文静, 左宏亮, 郭楠, 韩晓彬. 胶合竹顺纹受拉力学性能试验研究[J]. 低温建筑技术, 2015, 37(4): 38-40. |
| [12] | Li, Z., Yang, G.S., Zhou, Q., Shan, B. and Xiao, Y. (2019) Bending Performance of Gluban Beam Made with Difference Processes. Advances in Structural Engineering, 22, 535-546. https://doi.org/10.1177/1369433218794327 |
| [13] | 刘方舟, 左宏亮, 陈冠华. 结构用重组竹材顺纹抗拉力学性能试验研究[J]. 山西建筑, 2016, 42(7): 27-29. |
| [14] | 盛宝璐, 周爱萍, 黄东升, 黄镇. 重组竹的顺纹拉压强度与本构关系[J]. 南京林业大学学报(自然科学版), 2015, 39(5): 123-128. |
| [15] | 潘金炎, 王立, 张玉强, 刘亚辉. 基于重组竹的结构用胶合竹材力学性能试验研究[J]. 施工技术, 2018, 47(21): 135-139. |
| [16] | 任红玲, 陆方, 张禄晟, 覃道春.腐朽过程中毛竹主要化学成分的变化[J]. 林产工业, 2013, 40(1): 52-54. |
| [17] | Wakchaure, M.R. and Kute, S.Y. (2012) Effect of Moisture Content on Physical and Mechani-cal Properties of Bamboo. Asian Journal of Civil Engineering, 13, 753-763. |
| [18] | Xu, Q.F., Harries, K., Li, X.M., et al. (2014) Mechanical Properties of Structural Bamboo Following Immersion in Water. Engineering Structures, 81, 230-239. https://doi.org/10.1016/j.engstruct.2014.09.044 |
| [19] | Wang, H.K., Tian, G.L., Li, W.J., et al. (2015) Sensitivity of Bamboo Fiber Longitudinal Tensile Properties to Moisture Content Variation under the Fiber Saturation Point. Journal of Wood Science, 61, 262-269.
https://doi.org/10.1007/s10086-015-1466-y |
| [20] | Ghavami, K. (1995) Ultimate Load Behavior of Bam-boo-Reinforced Lightweight Concrete Beams. Cement and Concrete Composites, 17, 281-288. https://doi.org/10.1016/0958-9465(95)00018-8 |
| [21] | Pereira da Rosa, S.P.A. (2002) Analise Teorica e Experimental de Colunas Armado com Bambu. MSc Thesis, Civil Engineering Department, PUC-Rio. (In Portuguese) |
| [22] | Navarro, E.H.A. (2002) Lajes de Concreto com Forma permanente de Bambu. MSc Thesis, Civil Engineering, PUC-Rio. (In Por-tuguese) |
| [23] | 李昱澄, 张晓港. 竹筋混凝土中竹材与混凝土的粘结性能实验研究[J]. 山东工业技术, 2017(14): 98-99. |
| [24] | Ghavami, K. (2005) Bamboo as Reinforcement in Structural Concrete Elements. Cement and Concrete Composites, 27, 637-649. https://doi.org/10.1016/j.cemconcomp.2004.06.002 |
| [25] | Rahman, M.M., Rashid, M.H., Hossain, M.A., et al. (2011) Performance Evaluation of Bamboo Reinforced Concrete Beam. International Journal of Engineering & Technology, 11, 113-188. |
| [26] | Mali, P.R. and Datta, D. (2019) Experimental Evaluation of Bamboo Re-inforced Concrete Beams. Journal of Building Engineering, 28, Article ID: 101071. https://doi.org/10.1016/j.jobe.2019.101071 |
| [27] | Kankam, C.K. and Odum-Ewuakye, B. (2000) Flexural Strength and Behavior of Babadua-Reinforced Concrete Beam. Journal of Materials in Civil Engineering, 12, 39-45. https://doi.org/10.1061/(ASCE)0899-1561(2000)12:1(39) |
