CAJ | 학술논문

为解决建筑物内部空间电场强度分布难以量化的问题，采用时域有限差分（FDTD）法，对以平面波为激励源，二阶Mur吸收边界条件的闭合规则建筑物、非规则加窗建筑物和含钢筋非规则加窗建筑物3种模型结构内部电场强度分布特性进行模拟，并通过FEKO软件对计算结果的有效性进行验证。结果表明：普通混凝土材质的建筑物对平面波电场几乎无屏蔽效能；吸波混凝土材质的建筑物对平面波电场的屏蔽效能也较为有限，且随激励源频率的增加，在建筑开窗区域附近的谐振性增强，屏蔽性减弱；通过对植入钢筋墙体建筑物采用细线FDTD法的场强分布计算，证明金属钢筋可提高建筑围护结构的屏蔽效能。
위해결건축물내부공간전장강도분포난이양화적문제，채용시역유한차분（FDTD）법，대이평면파위격려원，이계Mur흡수변계조건적폐합규칙건축물、비규칙가창건축물화함강근비규칙가창건축물3충모형결구내부전장강도분포특성진행모의，병통과FEKO연건대계산결과적유효성진행험증。결과표명：보통혼응토재질적건축물대평면파전장궤호무병폐효능；흡파혼응토재질적건축물대평면파전장적병폐효능야교위유한，차수격려원빈솔적증가，재건축개창구역부근적해진성증강，병폐성감약；통과대식입강근장체건축물채용세선FDTD법적장강분포계산，증명금속강근가제고건축위호결구적병폐효능。
In order to solve the quantitative problem of the electric-field strength distribtion inside the building space,FDTD method is used to simulate the electric-field strength for three kinds of model structures,including closed and regular buildings,ir-regular buildings with windows and irregular buildings of reinforced concrete with windows under plane wave and boundary condi-tion of second-order Mur. Simulation results are vertified by FEKO software. Studies show that ordinary concrete building has no shielding effectiveness for electric-field of plane wave;shielding effectiveness of absorbing concrete material building is more limit-ed;frequent increase with the radiant source,resonance is enhanced close to window area and shielding effectiveness is lower. It tes-tifies that reinforcement can improve the sheilding effectiveness of the building envelope,by calculating the distribution of electric-field strength with thin wire FDTD method for wall of reinforced concrete.