新《建筑材料标准大全》JCT631-2023 钢丝网水泥板抗冲击性能试验方法8.pdf
h t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p 【简单96】QQ1563033835【简单96】QQ1563033835中华人民共和国建材行业标准JC/T 631-1996钢 丝 网 水 泥 板 抗 冲 击 性 能 试 验 方 法国家建筑材料工业局1996 08 01 头发布第1页更多精品资源关注微信公众号：g cs z h i k uh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p 【简单96】QQ1563033835【简单96】QQ1563033835次项项 次.21范围.32引用标准.43试件.53.1试件形状、尺寸.53.2试件数量.53.3 试模.53.4试件要求.54试验设备.75试验步骤.85.1试验准备.85.2抗冲击性能测定.86结果计算与评定.96.1结果计算.96.2试验结果评定.97试验报告.10附录A(标准的附录）.11附录B(提示的附录).12附加说明：.14第 2 页更多精品资源关注微信公众号：g cs z h i k uh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p 【简单96】QQ1563033835【简单96】QQ15630338351范围本标准规定了钢丝网水泥板抗冲击性能试验方法。本标准适用于公称厚度不大于36圖的钢丝网水泥板在单向简支状态下,用落锤法进 行的抗冲击性能试验。第3页更多精品资源关注微信公众号：g cs z h i k uh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p 【简单96】QQ1563033835【简单96】QQ15630338352引用标准G B 7897钢丝网水泥用砂浆力学性能试验方法第4页更多精品资源关注微信公众号：g cs z h i k uh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p 【简单96】QQ1563033835【简单96】QQ15630338353试件3.1试件形状、尺寸试件形状、尺寸见图1、表1。表1 m mL L0 b a h500 400 100200 50 彡 363.2试件数量试件每组成型六块,试验时选取其中五块。3.3试模成型试件用的试模宜采用钢质试模也可以采用木模,其尺寸允许偏差为:长度Lmm土 2圖：宽度b圖2圖;厚度h圖0.5圖。试模内表面不平整度应不超过边长的0.1%。3.4试件要求3.4.1试件所用原材料、砂浆配比、配筋、试件成型、养护方法与制度,应与有关标准、设计的要求或现场制作实际情况相符合。3.4.2试件内配置的筋、网应与试件宽度一致,纵向钢筋和网丝总根数按式(1)和式(2)确定:bnj=-.(1)Sjbnw=1.(2)Sw式中：nj一纵向钢筋总根数；nw-纵向网丝总根数；b-试件宽度,圖；Sj-纵向钢筋间距,圖；Sw-纵向网丝间距,圖。第 5 页更多精品资源关注微信公众号：g cs z h i k uh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p 【简单96】QQ1563033835【简单96】QQ15630338353.4.3试件保护层厚度应严格控制,必须符合有关产品结构设计规范或设计要求,其偏差 不得超过0.5圖。3.4.4试件外观质量应合格,表面平整光滑,不得有浮皮,上表面不平整度应不超过边长 的0.1%,棱角整齐,厚度均匀,无干缩裂纹。3.4.5在制作钢丝网水泥板抗冲击试件时，需同时制作40圖X 40圖X 16 0圖砂浆试件(每 批13组,每组三块）。砂浆试件的制备应符合G B 7897有关规定并与同批钢丝网水泥板 抗冲击试件相一致。在进行钢丝网水泥板抗冲击性能试验时,必须同时按G B 7897测定砂 浆试件抗折、抗压和劈裂抗拉强度。第6页更多精品资源关注微信公众号：g cs z h i k uh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p 【简单96】QQ1563033835【简单96】QQ15630338354试验设备4.1钢丝网水泥板抗冲击试验采用落锤式试验方法进行。设备装置图见附录A(标准的附 录）中图A1所示。（图略）4.2试验设备用底架、导杆架、导杆、支承板等要有足够的刚度,应坚实可靠。4.3试件支承方式为简支支承、支座间距离为400圖。4.4落锤为淬火U形锤,质量为1kg、2kg、4kg、8kg,偏差1%,硬度为HRC586 5,落距为0.5m、1m。落锤形状、尺寸如附录A(标准的附录）中图A2所示。4.5落锤设计应符合下面原则：a)落锤应作用在试件全宽上；b)落锤与试件接触面为线接触。第7页更多精品资源关注微信公众号：g cs z h i k uh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p 【简单96】QQ1563033835【简单96】QQ15630338355试验 步骤5.1试验准备5.1.1试验前先将试件擦拭干净,检查其外观,试件不得有明显缺损,在两支座区内，不得 有直径大于5圖、深度大于2圖的孔洞。用丙酮擦拭试件表面,根据湿痕检查试件有否干 缩裂缝,符合3.4.4要求后方可进行试验。5.1.2在试件中部测量宽度和厚度,分别测量3点,取其平均值,读数应分别精确至0.5圖和0.1圖。5.1.3划定位线,按图1及表1数值确定,划线偏差不得超过0.5圖。5.2抗冲击性能测定5.2.1将试件安放在支座上,并按定位线定位。试件受冲击面应为试件成型时的上表面。5.2.2将压板放在支座处的试件上表面,压板与试件接触表面为圆弧形,压板中心线与试 件定位线及支座标志线相重合,调节螺母使试件与压板呈微接触。5.2.3将落锤提升到规定的高度,落锤的落距是指落锤的下端点至试件表面的距离。5.2.4松开锁钩,让落锤自由落下,每次冲击应使落锤对准试件中心线。5.2.5试件初裂前和试件初裂后的落锤质量和落距,应根据板的配筋特征和几何尺寸按 附录B(提示的附录)采用。5.2.6试件初裂前,在跨中区段应进行各级冲击荷载下的裂缝观测。每次冲击完毕应及时 将试件移开支座,用丙酮擦拭试件的下表面,确定裂缝出现的部位,记录试件初裂时的冲 击次数。用20倍读数显微镜测量初始残余裂缝宽度。试件初裂时的冲击次数应不少于4次。5.2.7记录试件破坏时的冲击次数,破坏的标志规定为试件的永久的挠度f达到50圖,并 记录试件的破坏部位。破坏时的总冲击次数不宜于10次。5.2.8分别在试件初裂和破坏处各测3点保护层厚度,取平均值。读数精确至0.5圖。5.2.9对一块试件的冲击试验,只限一次,多于一次无效，以第一次冲击试验为准。第 8 页更多精品资源关注微信公众号：g cs z h i k uh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p 【简单96】QQ1563033835【简单96】QQ15630338356结 果 计 算 与 评 定6.1结果计算钢丝网水泥板抗冲击初裂强度和抗冲击破坏强度分别按式(3)、式(4)计算,精确至 0.01J/m2。9.81Xncf.G2.H2o cf=.(3)b.h9.81X(ncf.G1.H1+np.G2.H2)o p _(4)b.h式中：o cf钢丝网水泥板抗冲击初裂强度,J/m2;O p一钢丝网水泥板抗冲击破坏强度,J/m2;ncf-试件初裂时落锤的冲击次数；np一试件破坏时落锤的冲击次数；G1-初裂前落锤质量,kg;G2-初裂后落锤质量,kg;H1一初裂前落锤的落距,m;H2一初裂后落锤的落距,m;b-试件截面宽度,m;h一一度件截面厚度,m;9.81一换算系数。6.2试验结果评定6.2.1钢丝网水泥板抗冲击强度试验结果剔除最大值和最小值,按每组3个算术平均值评定。6.2.2钢丝网水泥板抗冲击力学性能试验结果，出现下列情况之一者无效：a)当保护层厚度不满足设计要求或实际情况时；b)试件初始裂缝位于跨中区段外侧时；c)试验结果无法衡准时。第9页更多精品资源关注微信公众号：g cs z h i k uh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr Fh t t p s:/j q.q q.co m/?_w v=1027&k=52v p Rr F
