房建材料及制品_2022_《混凝土與水泥制品》雜志社

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房建材料及制品

輕質高強抗裂隔墻板的制備及試驗研究

王清1，劉成健2，岳漢威1

2022年第4期

摘要

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王清,劉成健,岳漢威.輕質高強抗裂隔墻板的制備及試驗研究[J].混凝土與水泥制品,2022(4):59-63. WANG Q,LIU C J,YUE H W.Preparation and Experimental Study of Lightweight High-strength Crack Resistance Partition Wall Boards[J].China Concrete and Cement Products,2022(4):59-63.

基于ABAQUS的型鋼-RPC梁抗彎性能試驗驗證

段吉強，鄧年春，李顥旭

2022年第4期

摘要

引用本文

摘 ? 要：為了研究利用ABAQUS軟件模擬活性粉末混凝土（RPC）梁抗彎性能的適用性，基于該軟件中的混凝土材料塑性損傷（CDP）模型，針對RPC不同的本構模型，采用當前幾種主流的塑性損傷因子計算方法，得到了適用于RPC材料的CDP參數。結合已有的型鋼-RPC梁抗彎性能試驗，將RPC材料的CDP參數輸入ABAQUS軟件中，建立了考慮型鋼與RPC之間黏結滑移的有限元模型，并將模擬得到的荷載-撓度曲線與試驗實測曲線進行了對比。結果表明：在試驗實測RPC材料特征值參數值以及合適的RPC本構關系及塑性損傷因子計算方法的基礎上，考慮型鋼與RPC之間黏結滑移的數值模擬結果與試驗結果吻合較好；建議模擬時選擇下降段較緩和的受壓應力-應變曲線，受拉應力-應變曲線近似強化模型，采用能量損失法及Sidoroff能量等價原理計算RPC材料的CDP參數。 Abstract: In order to study the applicability of using ABAQUS software to simulate the flexural performance of reactive powder concrete(RPC) beams, based on the concrete material plastic damage(CDP) model in ABAQUS software, according to different constitutive models of RPC, several current mainstream plastic damage factor calculation methods were used to obtain the CDP parameters suitable for RPC material. Combined with the existing flexural performance tests of section steel-RPC beams, the CDP parameters of the RPC material were input into the ABAQUS software, and a finite element model considering the bond-slip between the section steel and RPC was established, and the load-deflection curves obtained from the simulation were compared with the measured curves. The results show that on the basis of the eigenvalue parameters of the RPC material measured in the test and the appropriate calculation method of the RPC constitutive relation and the plastic damage factor, the numerical simulation results considering the bond-slip between the section steel and the RPC are in good agreement with the experimental results. It is recommended to select a gentler compressive stress-strain curve in the descending section during simulation, and approximate the strengthening model of the tensile stress-strain curve, and use the energy loss method and the Sidoroff energy equivalent principle to calculate the CDP parameters of RPC. ?

段吉強,鄧年春,李顥旭.基于ABAQUS的型鋼-RPC梁抗彎性能試驗驗證[J].混凝土與水泥制品,2022(4):64-71. DUAN J Q,DENG N C,LI H X.Experimental Verification of Flexural Performance of Section Steel-RPC Beam Based on ABAQUS[J].China Concrete and Cement Products,2022(4):64-71.

構造鋼筋對改性RPC-普通混凝土結合面性能影響試驗研究

王欣1，楊哲1，張國強2，陳國斌2，劉黎明3，劉國安1

2022年第4期

摘要

引用本文

王欣,楊哲,張國強,等.構造鋼筋對改性RPC-普通混凝土結合面性能影響試驗研究[J].混凝土與水泥制品,2022(4):72-77. WANG X,YANG Z,ZHANG G Q,et al.Experimental Study on the Influence of Structural Steel Bars on the Performance of Modified RPC-normal Concrete Interface[J].China Concrete and Cement Products,2022(4):72-77.

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