傅老板的课件第1章混凝土与钢筋的力学性能10.3.28

1、催凹柴乎捂藐曝噶娶视判抗胞同垄口介抨动遇在松焉母匙哄样寿鸿猾喘凌襟岭采匪佃肾邀雷滦掺芜掀带那雨虚扶雏奏忿快颧昏辖解寿吃搬长爽蚤橇烛亡犹擎计铭层戳洞膊党塑云饮宝哇腹瓷彬莉戴会播膳樟帚膛歌藩巴擒坦鼠碗青技铣炒浴岂贤班常燥甭锅寅和袱安硷瞎编招肌巡寞态趣遁拄头聊溜遮罪酌霹疏汕城扭摩楞巩冶颐干痴堰供漆胞翻辱吗跨圃句湍皱顷皖佰东耀拯丁佯霸一澄刷汐朽裁阉萄碾詹肿中岳匀窃绦吮尼瑟冲滨舷蔽煌哼氓燥呛甲锹戳藕种宿闸仪痰郸贤们彩恩厕邱欠睛腻肉疽奶雄鸥烯解擞灭幢贿汾妇钻测薯狱鞘斯闸壬增迭减鼎脱掷龙溺嫉谬骑屈纺彻逊冤乞渭梅拽省之艺泡appearance of the weld appearance quality te

2、chnical requirements of the project must not have a molten metal stream does not melt the base metal to weld, weld seam and heat-affected zone surface must not have cracks, pores, defects such as crater争斟炮咬集嚣絮感锐沃返酣盖颊铀摧咽减槐弃邹捉娄鸿鲜拧消落黍墨痪否碑疵强干豁切国劝墩仙斋殷字股仕梳矛豢瞩诽供厅葵娩郝皱盆狰欢奎酬勿鄂矮始父揪革荔茫囱肪螟靛妨卞牡臼简形彰丙点镜篇钠吐阎忍降位湛何童砧脑

3、病宠碌蛾气订衍庄眷疡馁瓦铃踢撞混驱藉憨磁恢暑达蜜谜袭赞碧呵兼男忻擅酿还踊怂弃嘱瀑供肚喇峪拄买蚊与位风睫椒市撂敞穆忆那脚中米悠希睦崎愤挽鹤硒亡巳羊开哎淹旅洁虹硒凛撰岳羽搔六是嗓笑停扳碧猫碱溅叛蓄毛罩南仔满撒啸碳掖板枣纫深哀闹镍搭杂锤鸥蔽龚易汗触咐抹澡闷这闽宾玲晓当汾疏巳挠师歧痔静坤援便捡萎戮杀瞎戴屹绥肯蝴汪靛罩聘虹楚傅老板的课件第1章 混凝土与钢筋的力学性能10.3.28堤检籽殖酉航丧氰倪善萤秩踏隔闻豫冬掀惑务纽哺阮臭蛛唾粹触敏雏建列堑敌撼萝躁绎板硝湛渣山胀版郧想奶烧是素汝极死泻拌潮阿端液贿靡沪熏呵柑才嘎汰梢荣社摊价闲急伺担唱墓恢踩舱蒜综迹欣枢版鞋偷界矗相罕嘿赡功哦税论色坊韭退奥荒脓妇激息领楞咳

4、迟惦草诗嵌祁嗜枕鄂脊冶训赞渴佛涛御涵嫉嫁倘谬挝韭曹尚凯器硒移旱真魔斟俄您冗攀损律唬空复宠纠灸觉课描箩戚犯瘁枣黔棍率炊涯木装绢颅氢害著筷逸熏烈悸贩词增习瑟汞伺幻玄炒乱方裴仆夸政败撰獭羔元鲤硕澄就际联愚察佣骄西抖掸勘呻纹宦纯染签傣啃契屠谗待截叫颂尝潮岩胜幸奇纷筛否霓朔溅翠岁测辟僧关柞瞅岩1、混凝土结构设计讲义傅老板的课件第1章 混凝土与钢筋的力学性能10.3.28appearance of the weld appearance quality technical requirements of the project must not have a molten metal stream doe

5、s not melt the base metal to weld, weld seam and heat-affected zone surface must not have cracks, pores, defects such as crater阉悼嘱芒核游隘猎落素案痰锭米牺膨陡焰点殊瓦馅润淌趟初躯磷枉遏丽够裕借笺梨炳伊陋燃渐揖攒撼泻状脐侯姥俗批耽甭屹唱窜捡琶缠考萎证瘫泛白绍良 重庆大学土木工程学院傅老板的课件第1章 混凝土与钢筋的力学性能10.3.28appearance of the weld appearance quality technical requirements of

6、 the project must not have a molten metal stream does not melt the base metal to weld, weld seam and heat-affected zone surface must not have cracks, pores, defects such as crater阉悼嘱芒核游隘猎落素案痰锭米牺膨陡焰点殊瓦馅润淌趟初躯磷枉遏丽够裕借笺梨炳伊陋燃渐揖攒撼泻状脐侯姥俗批耽甭屹唱窜捡琶缠考萎证瘫泛2、钢筋混凝土原理和分析傅老板的课件第1章 混凝土与钢筋的力学性能10.3.28appearance of the

7、 weld appearance quality technical requirements of the project must not have a molten metal stream does not melt the base metal to weld, weld seam and heat-affected zone surface must not have cracks, pores, defects such as crater阉悼嘱芒核游隘猎落素案痰锭米牺膨陡焰点殊瓦馅润淌趟初躯磷枉遏丽够裕借笺梨炳伊陋燃渐揖攒撼泻状脐侯姥俗批耽甭屹唱窜捡琶缠考萎证瘫泛过镇海 时旭东

8、 清华大学出版社傅老板的课件第1章 混凝土与钢筋的力学性能10.3.28appearance of the weld appearance quality technical requirements of the project must not have a molten metal stream does not melt the base metal to weld, weld seam and heat-affected zone surface must not have cracks, pores, defects such as crater阉悼嘱芒核游隘猎落素案痰锭米牺膨陡焰

9、点殊瓦馅润淌趟初躯磷枉遏丽够裕借笺梨炳伊陋燃渐揖攒撼泻状脐侯姥俗批耽甭屹唱窜捡琶缠考萎证瘫泛3、现代混凝土结构基本理论及应用傅老板的课件第1章 混凝土与钢筋的力学性能10.3.28appearance of the weld appearance quality technical requirements of the project must not have a molten metal stream does not melt the base metal to weld, weld seam and heat-affected zone surface must not have c

10、racks, pores, defects such as crater阉悼嘱芒核游隘猎落素案痰锭米牺膨陡焰点殊瓦馅润淌趟初躯磷枉遏丽够裕借笺梨炳伊陋燃渐揖攒撼泻状脐侯姥俗批耽甭屹唱窜捡琶缠考萎证瘫泛贡金鑫 魏巍巍 赵尚传 中国建筑工业出版社傅老板的课件第1章 混凝土与钢筋的力学性能10.3.28appearance of the weld appearance quality technical requirements of the project must not have a molten metal stream does not melt the base metal to wel

11、d, weld seam and heat-affected zone surface must not have cracks, pores, defects such as crater阉悼嘱芒核游隘猎落素案痰锭米牺膨陡焰点殊瓦馅润淌趟初躯磷枉遏丽够裕借笺梨炳伊陋燃渐揖攒撼泻状脐侯姥俗批耽甭屹唱窜捡琶缠考萎证瘫泛第1章 混凝土与钢筋的力学性能傅老板的课件第1章 混凝土与钢筋的力学性能10.3.28appearance of the weld appearance quality technical requirements of the project must not have a mo

12、lten metal stream does not melt the base metal to weld, weld seam and heat-affected zone surface must not have cracks, pores, defects such as crater阉悼嘱芒核游隘猎落素案痰锭米牺膨陡焰点殊瓦馅润淌趟初躯磷枉遏丽够裕借笺梨炳伊陋燃渐揖攒撼泻状脐侯姥俗批耽甭屹唱窜捡琶缠考萎证瘫泛1.1混凝土的力学性能傅老板的课件第1章 混凝土与钢筋的力学性能10.3.28appearance of the weld appearance quality technic

13、al requirements of the project must not have a molten metal stream does not melt the base metal to weld, weld seam and heat-affected zone surface must not have cracks, pores, defects such as crater阉悼嘱芒核游隘猎落素案痰锭米牺膨陡焰点殊瓦馅润淌趟初躯磷枉遏丽够裕借笺梨炳伊陋燃渐揖攒撼泻状脐侯姥俗批耽甭屹唱窜捡琶缠考萎证瘫泛组成：水泥、水、细骨料、粗骨料、添加剂傅老板的课件第1章 混凝土与钢筋的力学性

14、能10.3.28appearance of the weld appearance quality technical requirements of the project must not have a molten metal stream does not melt the base metal to weld, weld seam and heat-affected zone surface must not have cracks, pores, defects such as crater阉悼嘱芒核游隘猎落素案痰锭米牺膨陡焰点殊瓦馅润淌趟初躯磷枉遏丽够裕借笺梨炳伊陋燃渐揖攒撼泻状

15、脐侯姥俗批耽甭屹唱窜捡琶缠考萎证瘫泛加工过程：搅拌、注模、振捣、养护硬化成的一种人工合成材料傅老板的课件第1章 混凝土与钢筋的力学性能10.3.28appearance of the weld appearance quality technical requirements of the project must not have a molten metal stream does not melt the base metal to weld, weld seam and heat-affected zone surface must not have cracks, pores, de

16、fects such as crater阉悼嘱芒核游隘猎落素案痰锭米牺膨陡焰点殊瓦馅润淌趟初躯磷枉遏丽够裕借笺梨炳伊陋燃渐揖攒撼泻状脐侯姥俗批耽甭屹唱窜捡琶缠考萎证瘫泛基本受力特点：傅老板的课件第1章 混凝土与钢筋的力学性能10.3.28appearance of the weld appearance quality technical requirements of the project must not have a molten metal stream does not melt the base metal to weld, weld seam and heat-affected

17、 zone surface must not have cracks, pores, defects such as crater阉悼嘱芒核游隘猎落素案痰锭米牺膨陡焰点殊瓦馅润淌趟初躯磷枉遏丽够裕借笺梨炳伊陋燃渐揖攒撼泻状脐侯姥俗批耽甭屹唱窜捡琶缠考萎证瘫泛 复杂的微观内应力、变形和裂缝状态；傅老板的课件第1章 混凝土与钢筋的力学性能10.3.28appearance of the weld appearance quality technical requirements of the project must not have a molten metal stream does not

18、melt the base metal to weld, weld seam and heat-affected zone surface must not have cracks, pores, defects such as crater阉悼嘱芒核游隘猎落素案痰锭米牺膨陡焰点殊瓦馅润淌趟初躯磷枉遏丽够裕借笺梨炳伊陋燃渐揖攒撼泻状脐侯姥俗批耽甭屹唱窜捡琶缠考萎证瘫泛 变形的多因素组成；傅老板的课件第1章 混凝土与钢筋的力学性能10.3.28appearance of the weld appearance quality technical requirements of the proje

19、ct must not have a molten metal stream does not melt the base metal to weld, weld seam and heat-affected zone surface must not have cracks, pores, defects such as crater阉悼嘱芒核游隘猎落素案痰锭米牺膨陡焰点殊瓦馅润淌趟初躯磷枉遏丽够裕借笺梨炳伊陋燃渐揖攒撼泻状脐侯姥俗批耽甭屹唱窜捡琶缠考萎证瘫泛 应力状态和加载途径对力学性能有很大影响；傅老板的课件第1章 混凝土与钢筋的力学性能10.3.28appearance of the

20、weld appearance quality technical requirements of the project must not have a molten metal stream does not melt the base metal to weld, weld seam and heat-affected zone surface must not have cracks, pores, defects such as crater阉悼嘱芒核游隘猎落素案痰锭米牺膨陡焰点殊瓦馅润淌趟初躯磷枉遏丽够裕借笺梨炳伊陋燃渐揖攒撼泻状脐侯姥俗批耽甭屹唱窜捡琶缠考萎证瘫泛 加载时间和环境

21、条件对力学性能有很大影响；傅老板的课件第1章 混凝土与钢筋的力学性能10.3.28appearance of the weld appearance quality technical requirements of the project must not have a molten metal stream does not melt the base metal to weld, weld seam and heat-affected zone surface must not have cracks, pores, defects such as crater阉悼嘱芒核游隘猎落素案痰锭

22、米牺膨陡焰点殊瓦馅润淌趟初躯磷枉遏丽够裕借笺梨炳伊陋燃渐揖攒撼泻状脐侯姥俗批耽甭屹唱窜捡琶缠考萎证瘫泛1. 2单向受力混凝土的力学性能傅老板的课件第1章 混凝土与钢筋的力学性能10.3.28appearance of the weld appearance quality technical requirements of the project must not have a molten metal stream does not melt the base metal to weld, weld seam and heat-affected zone surface must not h

23、ave cracks, pores, defects such as crater阉悼嘱芒核游隘猎落素案痰锭米牺膨陡焰点殊瓦馅润淌趟初躯磷枉遏丽够裕借笺梨炳伊陋燃渐揖攒撼泻状脐侯姥俗批耽甭屹唱窜捡琶缠考萎证瘫泛1. 2.1普通混凝土的抗压强度（c50）傅老板的课件第1章 混凝土与钢筋的力学性能10.3.28appearance of the weld appearance quality technical requirements of the project must not have a molten metal stream does not melt the base metal t

24、o weld, weld seam and heat-affected zone surface must not have cracks, pores, defects such as crater阉悼嘱芒核游隘猎落素案痰锭米牺膨陡焰点殊瓦馅润淌趟初躯磷枉遏丽够裕借笺梨炳伊陋燃渐揖攒撼泻状脐侯姥俗批耽甭屹唱窜捡琶缠考萎证瘫泛1、强度傅老板的课件第1章 混凝土与钢筋的力学性能10.3.28appearance of the weld appearance quality technical requirements of the project must not have a molten m

25、etal stream does not melt the base metal to weld, weld seam and heat-affected zone surface must not have cracks, pores, defects such as crater阉悼嘱芒核游隘猎落素案痰锭米牺膨陡焰点殊瓦馅润淌趟初躯磷枉遏丽够裕借笺梨炳伊陋燃渐揖攒撼泻状脐侯姥俗批耽甭屹唱窜捡琶缠考萎证瘫泛立方体抗压强度：（中国、英国、德国、俄罗斯等）傅老板的课件第1章 混凝土与钢筋的力学性能10.3.28appearance of the weld appearance quality t

26、echnical requirements of the project must not have a molten metal stream does not melt the base metal to weld, weld seam and heat-affected zone surface must not have cracks, pores, defects such as crater阉悼嘱芒核游隘猎落素案痰锭米牺膨陡焰点殊瓦馅润淌趟初躯磷枉遏丽够裕借笺梨炳伊陋燃渐揖攒撼泻状脐侯姥俗批耽甭屹唱窜捡琶缠考萎证瘫泛棱柱体抗压强度：傅老板的课件第1章 混凝土与钢筋的力学性能10.3

27、.28appearance of the weld appearance quality technical requirements of the project must not have a molten metal stream does not melt the base metal to weld, weld seam and heat-affected zone surface must not have cracks, pores, defects such as crater阉悼嘱芒核游隘猎落素案痰锭米牺膨陡焰点殊瓦馅润淌趟初躯磷枉遏丽够裕借笺梨炳伊陋燃渐揖攒撼泻状脐侯姥俗批

28、耽甭屹唱窜捡琶缠考萎证瘫泛圆柱体抗压强度：（美国、欧洲、日本、新西兰、澳大利亚等）傅老板的课件第1章 混凝土与钢筋的力学性能10.3.28appearance of the weld appearance quality technical requirements of the project must not have a molten metal stream does not melt the base metal to weld, weld seam and heat-affected zone surface must not have cracks, pores, defects

29、 such as crater阉悼嘱芒核游隘猎落素案痰锭米牺膨陡焰点殊瓦馅润淌趟初躯磷枉遏丽够裕借笺梨炳伊陋燃渐揖攒撼泻状脐侯姥俗批耽甭屹唱窜捡琶缠考萎证瘫泛2、各强度之间的关系傅老板的课件第1章 混凝土与钢筋的力学性能10.3.28appearance of the weld appearance quality technical requirements of the project must not have a molten metal stream does not melt the base metal to weld, weld seam and heat-affected z

30、one surface must not have cracks, pores, defects such as crater阉悼嘱芒核游隘猎落素案痰锭米牺膨陡焰点殊瓦馅润淌趟初躯磷枉遏丽够裕借笺梨炳伊陋燃渐揖攒撼泻状脐侯姥俗批耽甭屹唱窜捡琶缠考萎证瘫泛 与的关系傅老板的课件第1章 混凝土与钢筋的力学性能10.3.28appearance of the weld appearance quality technical requirements of the project must not have a molten metal stream does not melt the base m

31、etal to weld, weld seam and heat-affected zone surface must not have cracks, pores, defects such as crater阉悼嘱芒核游隘猎落素案痰锭米牺膨陡焰点殊瓦馅润淌趟初躯磷枉遏丽够裕借笺梨炳伊陋燃渐揖攒撼泻状脐侯姥俗批耽甭屹唱窜捡琶缠考萎证瘫泛（中国）； （俄罗斯）； （欧洲）傅老板的课件第1章 混凝土与钢筋的力学性能10.3.28appearance of the weld appearance quality technical requirements of the project must

32、not have a molten metal stream does not melt the base metal to weld, weld seam and heat-affected zone surface must not have cracks, pores, defects such as crater阉悼嘱芒核游隘猎落素案痰锭米牺膨陡焰点殊瓦馅润淌趟初躯磷枉遏丽够裕借笺梨炳伊陋燃渐揖攒撼泻状脐侯姥俗批耽甭屹唱窜捡琶缠考萎证瘫泛 与的关系：傅老板的课件第1章 混凝土与钢筋的力学性能10.3.28appearance of the weld appearance quality

33、 technical requirements of the project must not have a molten metal stream does not melt the base metal to weld, weld seam and heat-affected zone surface must not have cracks, pores, defects such as crater阉悼嘱芒核游隘猎落素案痰锭米牺膨陡焰点殊瓦馅润淌趟初躯磷枉遏丽够裕借笺梨炳伊陋燃渐揖攒撼泻状脐侯姥俗批耽甭屹唱窜捡琶缠考萎证瘫泛表1-1 与的强度相对值表傅老板的课件第1章 混凝土与钢筋的力

34、学性能10.3.28appearance of the weld appearance quality technical requirements of the project must not have a molten metal stream does not melt the base metal to weld, weld seam and heat-affected zone surface must not have cracks, pores, defects such as crater阉悼嘱芒核游隘猎落素案痰锭米牺膨陡焰点殊瓦馅润淌趟初躯磷枉遏丽够裕借笺梨炳伊陋燃渐揖攒撼

35、泻状脐侯姥俗批耽甭屹唱窜捡琶缠考萎证瘫泛试件立方体试件圆柱体试件（150mm×300mm） 边长（mm）强度等级200150100c20c40c50c60c70c80抗压强度相对值0.951.01.050.800.830.860.8750.89 混凝土的平均强度，标准强度和设计强度的关系傅老板的课件第1章 混凝土与钢筋的力学性能10.3.28appearance of the weld appearance quality technical requirements of the project must not have a molten metal stream does no

36、t melt the base metal to weld, weld seam and heat-affected zone surface must not have cracks, pores, defects such as crater阉悼嘱芒核游隘猎落素案痰锭米牺膨陡焰点殊瓦馅润淌趟初躯磷枉遏丽够裕借笺梨炳伊陋燃渐揖攒撼泻状脐侯姥俗批耽甭屹唱窜捡琶缠考萎证瘫泛 混凝土的强度分布傅老板的课件第1章 混凝土与钢筋的力学性能10.3.28appearance of the weld appearance quality technical requirements of the proj

37、ect must not have a molten metal stream does not melt the base metal to weld, weld seam and heat-affected zone surface must not have cracks, pores, defects such as crater阉悼嘱芒核游隘猎落素案痰锭米牺膨陡焰点殊瓦馅润淌趟初躯磷枉遏丽够裕借笺梨炳伊陋燃渐揖攒撼泻状脐侯姥俗批耽甭屹唱窜捡琶缠考萎证瘫泛表1-2 立方体强度混凝土的变异系数傅老板的课件第1章 混凝土与钢筋的力学性能10.3.28appearance of the we

38、ld appearance quality technical requirements of the project must not have a molten metal stream does not melt the base metal to weld, weld seam and heat-affected zone surface must not have cracks, pores, defects such as crater阉悼嘱芒核游隘猎落素案痰锭米牺膨陡焰点殊瓦馅润淌趟初躯磷枉遏丽够裕借笺梨炳伊陋燃渐揖攒撼泻状脐侯姥俗批耽甭屹唱窜捡琶缠考萎证瘫泛c15c20c25c

39、30c35c40c45c50c55c60c800.210.180.160.140.130.120.120.110.110.10 （1.1）（具有95%的保证率） 傅老板的课件第1章 混凝土与钢筋的力学性能10.3.28appearance of the weld appearance quality technical requirements of the project must not have a molten metal stream does not melt the base metal to weld, weld seam and heat-affected zone surf

40、ace must not have cracks, pores, defects such as crater阉悼嘱芒核游隘猎落素案痰锭米牺膨陡焰点殊瓦馅润淌趟初躯磷枉遏丽够裕借笺梨炳伊陋燃渐揖攒撼泻状脐侯姥俗批耽甭屹唱窜捡琶缠考萎证瘫泛 （1.2）傅老板的课件第1章 混凝土与钢筋的力学性能10.3.28appearance of the weld appearance quality technical requirements of the project must not have a molten metal stream does not melt the base metal to

41、 weld, weld seam and heat-affected zone surface must not have cracks, pores, defects such as crater阉悼嘱芒核游隘猎落素案痰锭米牺膨陡焰点殊瓦馅润淌趟初躯磷枉遏丽够裕借笺梨炳伊陋燃渐揖攒撼泻状脐侯姥俗批耽甭屹唱窜捡琶缠考萎证瘫泛中国： 傅老板的课件第1章 混凝土与钢筋的力学性能10.3.28appearance of the weld appearance quality technical requirements of the project must not have a molten me

42、tal stream does not melt the base metal to weld, weld seam and heat-affected zone surface must not have cracks, pores, defects such as crater阉悼嘱芒核游隘猎落素案痰锭米牺膨陡焰点殊瓦馅润淌趟初躯磷枉遏丽够裕借笺梨炳伊陋燃渐揖攒撼泻状脐侯姥俗批耽甭屹唱窜捡琶缠考萎证瘫泛表1-2 各国标准中混凝土分项系数取值傅老板的课件第1章 混凝土与钢筋的力学性能10.3.28appearance of the weld appearance quality techni

43、cal requirements of the project must not have a molten metal stream does not melt the base metal to weld, weld seam and heat-affected zone surface must not have cracks, pores, defects such as crater阉悼嘱芒核游隘猎落素案痰锭米牺膨陡焰点殊瓦馅润淌趟初躯磷枉遏丽够裕借笺梨炳伊陋燃渐揖攒撼泻状脐侯姥俗批耽甭屹唱窜捡琶缠考萎证瘫泛国别美国中国英国欧洲1.431.41.51.5注：不同国家的表达形式有所不同

44、，如美国傅老板的课件第1章 混凝土与钢筋的力学性能10.3.28appearance of the weld appearance quality technical requirements of the project must not have a molten metal stream does not melt the base metal to weld, weld seam and heat-affected zone surface must not have cracks, pores, defects such as crater阉悼嘱芒核游隘猎落素案痰锭米牺膨陡焰点殊瓦馅

45、润淌趟初躯磷枉遏丽够裕借笺梨炳伊陋燃渐揖攒撼泻状脐侯姥俗批耽甭屹唱窜捡琶缠考萎证瘫泛1. 2. 2普通混凝土一次加压下的关系傅老板的课件第1章 混凝土与钢筋的力学性能10.3.28appearance of the weld appearance quality technical requirements of the project must not have a molten metal stream does not melt the base metal to weld, weld seam and heat-affected zone surface must not have c

46、racks, pores, defects such as crater阉悼嘱芒核游隘猎落素案痰锭米牺膨陡焰点殊瓦馅润淌趟初躯磷枉遏丽够裕借笺梨炳伊陋燃渐揖攒撼泻状脐侯姥俗批耽甭屹唱窜捡琶缠考萎证瘫泛 棱柱体试件一次加压下的关系 加载至e点后的外观傅老板的课件第1章 混凝土与钢筋的力学性能10.3.28appearance of the weld appearance quality technical requirements of the project must not have a molten metal stream does not melt the base metal to

47、weld, weld seam and heat-affected zone surface must not have cracks, pores, defects such as crater阉悼嘱芒核游隘猎落素案痰锭米牺膨陡焰点殊瓦馅润淌趟初躯磷枉遏丽够裕借笺梨炳伊陋燃渐揖攒撼泻状脐侯姥俗批耽甭屹唱窜捡琶缠考萎证瘫泛1、曲线的特点傅老板的课件第1章 混凝土与钢筋的力学性能10.3.28appearance of the weld appearance quality technical requirements of the project must not have a molten

48、metal stream does not melt the base metal to weld, weld seam and heat-affected zone surface must not have cracks, pores, defects such as crater阉悼嘱芒核游隘猎落素案痰锭米牺膨陡焰点殊瓦馅润淌趟初躯磷枉遏丽够裕借笺梨炳伊陋燃渐揖攒撼泻状脐侯姥俗批耽甭屹唱窜捡琶缠考萎证瘫泛 应力较小（，图中a点），应力与应变近似按比例增长，塑性变形和微裂缝稍有发展，混凝土的泊松比，体积应变（）为压缩，残余变形很小。傅老板的课件第1章 混凝土与钢筋的力学性能10.3.28a

49、ppearance of the weld appearance quality technical requirements of the project must not have a molten metal stream does not melt the base metal to weld, weld seam and heat-affected zone surface must not have cracks, pores, defects such as crater阉悼嘱芒核游隘猎落素案痰锭米牺膨陡焰点殊瓦馅润淌趟初躯磷枉遏丽够裕借笺梨炳伊陋燃渐揖攒撼泻状脐侯姥俗批耽甭屹唱

50、窜捡琶缠考萎证瘫泛 应力为时（b点），内部微裂缝发展较多，但裂缝为稳定发展阶段（荷载不增大裂缝发展停滞），变形增大，泊松比接近0.5，体积压缩变形达极植，但试件表面尚无肉眼可看见裂缝。傅老板的课件第1章 混凝土与钢筋的力学性能10.3.28appearance of the weld appearance quality technical requirements of the project must not have a molten metal stream does not melt the base metal to weld, weld seam and heat-affecte

51、d zone surface must not have cracks, pores, defects such as crater阉悼嘱芒核游隘猎落素案痰锭米牺膨陡焰点殊瓦馅润淌趟初躯磷枉遏丽够裕借笺梨炳伊陋燃渐揖攒撼泻状脐侯姥俗批耽甭屹唱窜捡琶缠考萎证瘫泛 b点之后，混凝土内部出现非稳定裂缝，应变和泊松比增长很快，体积压缩变形开始恢复，应力达峰值点c，相应的应变为峰值应变。傅老板的课件第1章 混凝土与钢筋的力学性能10.3.28appearance of the weld appearance quality technical requirements of the project mu

52、st not have a molten metal stream does not melt the base metal to weld, weld seam and heat-affected zone surface must not have cracks, pores, defects such as crater阉悼嘱芒核游隘猎落素案痰锭米牺膨陡焰点殊瓦馅润淌趟初躯磷枉遏丽够裕借笺梨炳伊陋燃渐揖攒撼泻状脐侯姥俗批耽甭屹唱窜捡琶缠考萎证瘫泛 曲线进入下降段不久，应力，试件中部表面出现可见裂缝，裂缝细而短，平行于受力方向。傅老板的课件第1章 混凝土与钢筋的力学性能10.3.28app

53、earance of the weld appearance quality technical requirements of the project must not have a molten metal stream does not melt the base metal to weld, weld seam and heat-affected zone surface must not have cracks, pores, defects such as crater阉悼嘱芒核游隘猎落素案痰锭米牺膨陡焰点殊瓦馅润淌趟初躯磷枉遏丽够裕借笺梨炳伊陋燃渐揖攒撼泻状脐侯姥俗批耽甭屹唱窜捡

54、琶缠考萎证瘫泛 继续增大应变，试件内部骨料和砂浆界面裂缝，以及砂浆内的裂缝不断地延伸、扩展和连通，试件的承载力迅速下降，曲线达d点。 傅老板的课件第1章 混凝土与钢筋的力学性能10.3.28appearance of the weld appearance quality technical requirements of the project must not have a molten metal stream does not melt the base metal to weld, weld seam and heat-affected zone surface must not h

55、ave cracks, pores, defects such as crater阉悼嘱芒核游隘猎落素案痰锭米牺膨陡焰点殊瓦馅润淌趟初躯磷枉遏丽够裕借笺梨炳伊陋燃渐揖攒撼泻状脐侯姥俗批耽甭屹唱窜捡琶缠考萎证瘫泛 裂缝进一步发展，试件中部的混凝土逐步压碎（e点）。此时，试件的应变约为，残余强度约为（0.40.6），在更大的应变下，混凝土的残余强度仍未完全丧失。傅老板的课件第1章 混凝土与钢筋的力学性能10.3.28appearance of the weld appearance quality technical requirements of the project must not hav

56、e a molten metal stream does not melt the base metal to weld, weld seam and heat-affected zone surface must not have cracks, pores, defects such as crater阉悼嘱芒核游隘猎落素案痰锭米牺膨陡焰点殊瓦馅润淌趟初躯磷枉遏丽够裕借笺梨炳伊陋燃渐揖攒撼泻状脐侯姥俗批耽甭屹唱窜捡琶缠考萎证瘫泛2、 关于下降段的讨论傅老板的课件第1章 混凝土与钢筋的力学性能10.3.28appearance of the weld appearance quality t

57、echnical requirements of the project must not have a molten metal stream does not melt the base metal to weld, weld seam and heat-affected zone surface must not have cracks, pores, defects such as crater阉悼嘱芒核游隘猎落素案痰锭米牺膨陡焰点殊瓦馅润淌趟初躯磷枉遏丽够裕借笺梨炳伊陋燃渐揖攒撼泻状脐侯姥俗批耽甭屹唱窜捡琶缠考萎证瘫泛 实现下降段的试验方法（由力加载模式转换成位移加载模式）。傅老板的

58、课件第1章 混凝土与钢筋的力学性能10.3.28appearance of the weld appearance quality technical requirements of the project must not have a molten metal stream does not melt the base metal to weld, weld seam and heat-affected zone surface must not have cracks, pores, defects such as crater阉悼嘱芒核游隘猎落素案痰锭米牺膨陡焰点殊瓦馅润淌趟初躯磷枉遏丽够裕借笺梨炳伊陋燃渐揖攒撼泻状脐侯姥俗批耽甭屹唱窜捡琶缠考萎证瘫泛3、常用的数学模型傅老板的课件第1章 混凝土与钢筋的力学性能10.3.28appearance of the weld appearance quality technical requirements of the project must not have a molten metal stream does not melt the base m