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此种方法是通过给定其失效作用,高速公路护栏螺栓当达到许用轴向力和剪切力时,焊点失效,防阻块与波形梁护栏板彼此脱离,这样两者变?较大,吸收较多的能盆,与实际情况相符。这种方法是将相互连接处的节点定义为无质量焊点,然后给以极限力?<br /> (1)波形梁高速公路护栏板与防阻块的连接作为重要的承力和传力构件,波形梁公路护栏板与防阻块之间必须连接紧凑,但考虑到标准中规定护栏板与防阻块之间采用普通螺栓连接,为真实模拟实际状况,本文运用无质量焊点来模拟螺栓连接?br /> (2)防阻块与立柱的连接,防阻块务必要传力量给立柱,就必须要保证它们之间的良好连接。它们之间连接的具体处理如下:在防阻块与立柱间锚栓连接的准确位哭,让防阻块与立 柱单元共用一个节点,保证防阻块和立柱在锚栓连接处?个自由度上变形协调一?在其他节点上,以防阻块节点不能穿透立柱正面为原则,将防阻块中所有可能发生穿透现象的节点都与立柱的相应节点在立柱正面法线方向上进行祸合?br /> (3)立柱与地面的连接只有将立柱与地面的连接完好,才能保证立柱将力传递到地面。它们之间的连接处理如下:将立柱与地面的相对应节点合并成一个节点,合并时以立柱节点位置为基准,这样就保证了立柱与地面的完好连接以确保它们之间不产生相对滑移?</p> <p> <img src="/uploads/image/20190509/20190509165945_5231.jpg" alt="" /> </p></p> </div> <div class="pre"><div>上一?<a href="186.html">怎样做到让桥梁防撞护栏又美观又安?</a></div> <div>下一?<a href="184.html">路面上的波形护栏板有什么设置方?</a></div> </div> <div class="news_related"> <div class="xg_tit">相关新闻</div> <ul> <li><a href="/news/281.html">选购高速公路护栏板的注意事?..</a><span>2021-07-29</span></li> <li><a href="/news/280.html">高速公路护栏板的作?..</a><span>2021-07-23</span></li> <li><a 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