<p style="margin:0cm 0cm 0pt;" class="MsoNormal"><span style="font-size:small;"><b style="mso-bidi-font-weight:normal;"><span style="font-family:宋体;mso-bidi-font-size:10.5pt;mso-ascii-font-family:'Times New Roman';mso-hansi-font-family:'Times New Roman';">金属声屏障</span></b><span style="font-family:宋体;mso-bidi-font-size:10.5pt;mso-ascii-font-family:'Times New Roman';mso-hansi-font-family:'Times New Roman';">是在声源和接收者之间插入一个设施</span><span style="mso-bidi-font-size:10.5pt;" lang="EN-US"><span style="font-family:'Times New Roman';">,</span></span><span style="font-family:宋体;mso-bidi-font-size:10.5pt;mso-ascii-font-family:'Times New Roman';mso-hansi-font-family:'Times New Roman';">使声波传播有一个显著的附加衰减</span><span style="mso-bidi-font-size:10.5pt;" lang="EN-US"><span style="font-family:'Times New Roman';">,</span></span><span style="font-family:宋体;mso-bidi-font-size:10.5pt;mso-ascii-font-family:'Times New Roman';mso-hansi-font-family:'Times New Roman';">从而减弱接收者所在的一定区域内的噪声影响</span><span style="mso-bidi-font-size:10.5pt;" lang="EN-US"><span style="font-family:'Times New Roman';">,</span></span><span style="font-family:宋体;mso-bidi-font-size:10.5pt;mso-ascii-font-family:'Times New Roman';mso-hansi-font-family:'Times New Roman';">这样的设施就称为声屏障。声波在传播过程中，遇到声屏障时，就会发生反射、透射和绕射三种现象。通常我们认为屏障能够阻止直达声的传播，并使统射声有足够的衰减，而透射声的影响可以忽略不计。因此，声屏障的隔声效果一般可采用减噪量表示，它反映了声屏障上述两种屏蔽透声的本领。在声源和接收点之间插入一个声屏障，设屏障无限长，声波只能从屏障上方绕射过去，而在其后形成一个声影区，就象光线被物体遮挡形成一个阴影那样。在这个声影区内，人们可以感到噪声明显地减弱了</span><span style="mso-bidi-font-size:10.5pt;" lang="EN-US"><span style="font-family:'Times New Roman';">,</span></span><span style="font-family:宋体;mso-bidi-font-size:10.5pt;mso-ascii-font-family:'Times New Roman';mso-hansi-font-family:'Times New Roman';">这就是声屏障的减噪效果缩短施工时间降低工程费用。</span><b style="mso-bidi-font-weight:normal;"><span style="mso-bidi-font-size:10.5pt;" lang="EN-US"><?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" /><o:p></o:p></span></b></span></p> <p style="margin:0cm 0cm 0pt;" class="MsoNormal"><span style="font-size:small;"><b style="mso-bidi-font-weight:normal;"><span style="font-family:宋体;mso-bidi-font-size:10.5pt;mso-ascii-font-family:'Times New Roman';mso-hansi-font-family:'Times New Roman';">特点</span></b><span class="zhengwen1"><span style="color:black;" lang="EN-US"><o:p></o:p></span></span></span></p> <p style="line-height:18pt;text-indent:15.75pt;margin:0cm 0cm 0pt;layout-grid-mode:char;word-break:break-all;" class="p0"><span style="font-family:宋体;"><span style="color:black;font-size:10.5pt;mso-bidi-font-family:Arial;">）、隔声量大：平均隔声量<span lang="EN-US">36dB</span>。</span><span style="font-family:Arial;color:#2e4690;font-size:10.5pt;" lang="EN-US"><o:p></o:p></span></span></p> <p style="line-height:18pt;text-indent:15.75pt;margin:0cm 0cm 0pt;layout-grid-mode:char;word-break:break-all;" class="p0"><span style="font-family:宋体;"><span style="color:black;font-size:10.5pt;mso-bidi-font-family:Arial;" lang="EN-US">2</span><span style="color:black;font-size:10.5pt;mso-bidi-font-family:Arial;">）、吸声系数高：平均吸声系数<span lang="EN-US">0.85</span>。</span><span style="font-family:Arial;color:#2e4690;font-size:10.5pt;" lang="EN-US"><o:p></o:p></span></span></p> <p style="line-height:18pt;text-indent:15.75pt;margin:0cm 0cm 0pt;layout-grid-mode:char;word-break:break-all;" class="p0"><span style="font-family:宋体;"><span style="color:black;font-size:10.5pt;mso-bidi-font-family:Arial;" lang="EN-US">3</span><span style="color:black;font-size:10.5pt;mso-bidi-font-family:Arial;">）、耐候耐久性：产品具有耐水性、耐热性、抗紫外线、不会因雨水温度变化引起降低性能或品质异常。产品采用铝合金卷板、镀锌卷板、玻璃棉、<span lang="EN-US">H</span>钢立柱表面镀锌处理防腐年限在<span lang="EN-US">30</span>年以上。<span lang="EN-US"><o:p></o:p></span></span></span></p> <p style="line-height:18pt;text-indent:15.75pt;margin:0cm 0cm 0pt;layout-grid-mode:char;word-break:break-all;" class="p0"><span style="font-family:宋体;"><span style="color:black;font-size:10.5pt;mso-bidi-font-family:Arial;" lang="EN-US">4</span><span style="color:black;font-size:10.5pt;mso-bidi-font-family:Arial;">）、美观：可选择多种色彩和造型进行组合，与周围环境协调，形成亮丽风景线。<span lang="EN-US"><o:p></o:p></span></span></span></p> <p style="line-height:18pt;text-indent:15.75pt;margin:0cm 0cm 0pt;layout-grid-mode:char;word-break:break-all;" class="p0"><span style="font-family:宋体;"><span style="color:black;font-size:10.5pt;mso-bidi-font-family:Arial;" lang="EN-US">5</span><span style="color:black;font-size:10.5pt;mso-bidi-font-family:Arial;">）、经济：装配式施工，提高工作效率，缩短施工时间，可节省施工费及人工费。<span lang="EN-US"><o:p></o:p></span></span></span></p> <p style="line-height:18pt;text-indent:15.75pt;margin:0cm 0cm 0pt;layout-grid-mode:char;word-break:break-all;" class="p0"><span style="font-family:宋体;"><span style="color:black;font-size:10.5pt;mso-bidi-font-family:Arial;" lang="EN-US">6</span><span style="color:black;font-size:10.5pt;mso-bidi-font-family:Arial;">）、方便：与其它制品并行安装，易维修，更新方便。<span lang="EN-US"><o:p></o:p></span></span></span></p> <p style="line-height:18pt;text-indent:15.75pt;margin:0cm 0cm 0pt;layout-grid-mode:char;word-break:break-all;" class="p0"><span style="font-family:宋体;"><span style="color:black;font-size:10.5pt;mso-bidi-font-family:Arial;" lang="EN-US">7</span><span style="color:black;font-size:10.5pt;mso-bidi-font-family:Arial;">）、安全：吸声板两端用φ<span lang="EN-US">6.2</span>钢丝绳连接固定，防止二次损伤，造成人员、财产损失。<span lang="EN-US"><o:p></o:p></span></span></span></p> <p style="line-height:18pt;text-indent:15.75pt;margin:0cm 0cm 0pt;layout-grid-mode:char;word-break:break-all;" class="p0"><span style="font-family:宋体;"><span style="color:black;font-size:10.5pt;mso-bidi-font-family:Arial;" lang="EN-US">8</span><span style="color:black;font-size:10.5pt;mso-bidi-font-family:Arial;">）、轻便：吸音板<span lang="EN-US">N</span>系列产品具有自重轻特点，平米质量低于<span lang="EN-US">25</span>公斤，可减轻高架轻轨、高架路的承重负荷，可降低结构造价。<span lang="EN-US"><o:p></o:p></span></span></span></p> <p style="line-height:18pt;text-indent:15.75pt;margin:0cm 0cm 0pt;layout-grid-mode:char;word-break:break-all;" class="p0"><span style="font-family:宋体;"><span style="color:black;font-size:10.5pt;mso-bidi-font-family:Arial;" lang="EN-US">9</span><span style="color:black;font-size:10.5pt;mso-bidi-font-family:Arial;">）、防火：采用超细玻璃棉，由于其熔点高，不可燃，完全满足环保和防火规范的要求，防火等级达<span lang="EN-US">A</span>级。<span lang="EN-US"><o:p></o:p></span></span></span></p> <p style="line-height:18pt;text-indent:15.75pt;margin:0cm 0cm 0pt;layout-grid-mode:char;word-break:break-all;" class="p0"><span style="font-family:宋体;"><span style="color:black;font-size:10.5pt;mso-bidi-font-family:Arial;" lang="EN-US">10</span><span style="color:black;font-size:10.5pt;mso-bidi-font-family:Arial;">）、高强度：结合我国各地区不同的气候条件，在结构设计时充分考虑风荷载。采用<span lang="EN-US">1.2</span>㎜镀锌板，通过自动生产线，压制凹槽以增加强度，使产品抗<span lang="EN-US">10-12</span>级台风，抗压<span lang="EN-US">300</span>㎏<span lang="EN-US">/</span>㎡。<span lang="EN-US"><o:p></o:p></span></span></span></p> <p style="line-height:18pt;text-indent:15.75pt;margin:0cm 0cm 0pt;layout-grid-mode:char;word-break:break-all;" class="p0"><span style="font-family:宋体;"><span style="color:black;font-size:10.5pt;mso-bidi-font-family:Arial;" lang="EN-US">11</span><span style="color:black;font-size:10.5pt;mso-bidi-font-family:Arial;">）、防水、防尘： 百叶型设计时充分考虑防水、防尘，其角度设为<span lang="EN-US">45</span>°，在扬尘或淋雨环境中其吸声性不受影响，构造中已设置排尘排水措施，避免构件内部积水。<span lang="EN-US"><o:p></o:p></span></span></span></p>