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Researth on Deflection Calculation Method of Bidirectional Composite Slab with Steel Fiber Recycled Concrete Prefabricated Plate
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摘要: 为推动再生类混凝土在结构工程尤其是工业化建造中的应用,提出一种预制层为钢纤维再生混凝土、现浇层为普通混凝土的双向受力叠合板(半再生-半普通混凝土叠合板),针对其正交异性构造特性,基于弹性薄板理论,建立了其弹性阶段挠度计算公式;综合考虑扭矩及荷载分布规律对双向板受弯性能的影响规律,给出了考虑精准弯矩作用下的弹塑性阶段挠度计算方法;在此基础上,通过理论计算与试验结果的对比分析表明,所提出的弹性及弹塑性阶段挠度计算方法具有实用和有效性。Abstract: In order to promote the application of recycled concrete in structural engineering, especially in industrial construction, a kind of steel fiber reinforced recycled concrete with prefabricated layer and cast-in-situ layer as bidirectional composite slab (semi-recycled-semi-ordinary concrete composite slab) was proposed. Based on the theory of elastic thin slab, a formula for calculating the deflection of elastic stage was established according to its orthotropic structural characteristics. The calculation method of elastic-plastic stage deflection considering precise bending moment was given. On this basis, the comparison between theoretical calculation and experimental results showed that the elastic and elastic-plastic stage deflection calculation presented in the paper was practical and effective.
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Key words:
- composite slab /
- steel bar truss /
- green concrete /
- orthotropy /
- theory of plates and shells
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[1] 丁大钧. 薄板按弹性和塑性理论计算[M]. 南京:东南大学出版社, 1991. [2] 姜磊. 钢筋混凝土双向板挠度的试验研究与分析控制[D]. 西安:西安建筑科技大学, 2011. [3] 王俊, 赵基达, 胡宗羽. 我国建筑工业化发展现状与思考[J]. 土木工程学报, 2016(5):1-8. [4] MOHAMAD N, KHALIFA H, SAMAD A A, et al. Structural performance of recycled aggregate in CSP slab subjected to flexure load[J]. Construction and Building Materials, 2016, 115:669-680. [5] 黄海林, 吴方伯, 祝明桥, 等. 板肋形式对预制带肋底板混凝土叠合板受弯性能的影响研究[J]. 建筑结构学报, 2015, 36(10):66-72. [6] 侯和涛, 冯明远, 邱灿星, 等. 预应力混凝土钢肋叠合板受弯性能试验与理论研究[J]. 建筑结构学报, 2018, 39(3):103-110. [7] 周梅, 张院强, 杨尚谕, 等. 自燃煤矸石砂轻混凝土单向叠合板的受弯性能[J]. 建筑材料学报,2021, 24(5):1066-1072. [8] 中华人民共和国住房和城乡建设部.混凝土结构试验方法标准:GB/T 50152-2012[S]. 北京:中国建筑工业出版社, 2012:17-25. [9] 徐芝纶. 板壳理论[M]. 北京:高等教育出版社, 2006. [10] 黄炜, 罗斌, 李斌, 等. 不同构造形式绿色混凝土叠合板受弯性能试验[J]. 湖南大学学报(自然科学版), 2019, 46(7):35-44. [11] TIMOSHENKO S, WOINOWSKY K S. Theory of plates and shells[M]. 2nd ed. New York:Mcgraw Hill Book Company Inc, 1958. [12] R派克, W L根勃尔. 钢筋混凝土板[M]. 上海:同济大学出版社,1992. -
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