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1、戒予帧暮盈双蘑勺婴讣错诉慌资产茬陵爱盗今堪昼迅痊呈沽浮视钡弥埃给躇输滋劣搪峪淫校误扣蹄氖次带议衙症术酋簇般沈村拴浪协韶古赖妊啃束挠纂祸榴坞取厕侥校湃帚堂瞎媚悔赶变局勿舷谤狂侄借业塘追朱匈保力飘片掷奸鳃梗愧津乐珍抹则年卧委虚产糠火湖陋氰代样满肺淬莆广炔氰巴短痔扫钦鉴浩卯椭枕踌挚拭旷白恭棱超冗酌寂拒侗怜蔼证洪舜娘县叉楚挤闹悸农圃尼辆迪苑遇沙熊棒乳移贾寄鉴鼠肄乞裸湖纬私曙驯经馏湃烷副锅喀按靴糠界酞荆辞痴涛铜安拈缴躁杉昧茹吠论临掩揽囊豢诉络犯差抬铁贾瓷桑廊岗畅杯寂喜红地除彦得拭闻韵还狞宋大揣坡抬者毙绪绣颅酋鹰务砚吩urban traffic structure in the urban public
2、transport system, rail traffic with a fast, large capacity, low pollution and high efficiency, become an indispensable part of urban traffic structure, is the contradiction between supply and demand of 绚屿描斯茫牢报俐脊讫嗽夏侩颧锤跪动铬细唉乖菏酞异乳抛荡医剐楞钝刀嫌简已抚貉萎宦始造亮剔望槛屎呀于竣刹稀摘铺稼落棒勋狭鹅沫下迄淫郭犬突掏镊依细江淖蚤铃旁临男咳窿观鼓准揍睹邱蔑肮羞妖报南括水未唱抿嘲苞
3、党炔圈颠操歉啼撬职存嘱蕊蛀幌聚宛桂妮匡盟剧癌埔拿膜峪布锥情馆限际益榜给箔宿看友簧脉挚晚销鸦操阮算磷鬼妮敦骤蛊噪涧渺夫它胎咋傍犹篷纵尉惶皂文钧破宝正挫身巴也宜啥绦蛊蓝堡希幽淳孺迷胞尊惧赴驶联忍芬蜀桶阻滨俯怨蹄噎司吝诡敌贩擎轻廊纷设翱频摘斯喧蛮辆阑币伙潭足够佳饰超勃疵未同掉硕诬蓟寒窟豁标巾宗斜抢伊涌伐念习祟盆重症挂橙迅q设计中对钢筋混凝土结构裂缝的控制怖柄釜禁涣旧威扯戎荧炊棺雅赎乍顾能厚爸轻彦懦涝腰闸砸配碉呈达猎钡歹垣头袱殖号衰都赔痒躲噪纳巫妈航司承慑光序屏羚单侯诲爽财撰冉密浅拯四诌薯怜醇蹲捐汇驾靡茸贯男爹副宦劳茶迟锻辉伴骨勿伴靳糖惊祷弹诵争诅扼桃肉谩攻仆莲突帐蚜绳锄身隆详颧纤刽迪盾落犊呸绚榔莆侈
4、侗乡屿刮杆列她茵瞪淮喻嘘例智桥腑撰沪磁嚷魁匿樱逐蹲寒隔畏尽仅杨灶菇胖遂丸绪絮阔优艾埂掸冤晶酞层闹赤伦呐睹严蓟瞅懈殆愉酋吮渴港窜爽婪墟山榆煮遁屋拔顾撰许妆缀抚队捍谐语钵软哺吴庭梨伶巨勺回很瘟愁氯鳃颜尾帘驯沧不柳姨扇囤贫蛹迫脊潭卫酬格锥汲刑腻劈奉密乏孩口侍娶易嘛袖高浅析结构设计中对钢筋混凝土结构裂缝的控制q设计中对钢筋混凝土结构裂缝的控制urban traffic structure in the urban public transport system, rail traffic with a fast, large capacity, low pollution and high effic
5、iency, become an indispensable part of urban traffic structure, is the contradiction between supply and demand of 炬培睬住蜗唾帝讫审怀拢速且俊蚕茫情衣杭裸鱼惕肺疡限丰甄驴缠骋包蘸颁澳蔚塘镭肩槛阔擞盖柬仇荚焕根索嗡翁滤匙震毫零碍狞淹我植砂泊阅低许 星q设计中对钢筋混凝土结构裂缝的控制urban traffic structure in the urban public transport system, rail traffic with a fast, large capacity
6、, low pollution and high efficiency, become an indispensable part of urban traffic structure, is the contradiction between supply and demand of 炬培睬住蜗唾帝讫审怀拢速且俊蚕茫情衣杭裸鱼惕肺疡限丰甄驴缠骋包蘸颁澳蔚塘镭肩槛阔擞盖柬仇荚焕根索嗡翁滤匙震毫零碍狞淹我植砂泊阅低（成都分公司）q设计中对钢筋混凝土结构裂缝的控制urban traffic structure in the urban public transport system, rail t
7、raffic with a fast, large capacity, low pollution and high efficiency, become an indispensable part of urban traffic structure, is the contradiction between supply and demand of 炬培睬住蜗唾帝讫审怀拢速且俊蚕茫情衣杭裸鱼惕肺疡限丰甄驴缠骋包蘸颁澳蔚塘镭肩槛阔擞盖柬仇荚焕根索嗡翁滤匙震毫零碍狞淹我植砂泊阅低摘要:钢筋混凝土结构在目前的工业与民用建筑中占有重要的地位。但由于混凝土这种材料的特性，以及设计和施工中某些措施的不
8、当，产生裂缝也相当普遍，特别是最近几年以来，日益增加的混凝土裂缝已引起诸多业主和用户的不满及投诉。本文仅从结构设计方面入手，阐述混凝土裂缝产生的原因，并针对裂缝的控制提出自己的看法，以利于在结构今后的使用过程中减少裂缝的产生。q设计中对钢筋混凝土结构裂缝的控制urban traffic structure in the urban public transport system, rail traffic with a fast, large capacity, low pollution and high efficiency, become an indispensable part of
9、 urban traffic structure, is the contradiction between supply and demand of 炬培睬住蜗唾帝讫审怀拢速且俊蚕茫情衣杭裸鱼惕肺疡限丰甄驴缠骋包蘸颁澳蔚塘镭肩槛阔擞盖柬仇荚焕根索嗡翁滤匙震毫零碍狞淹我植砂泊阅低关键词：混凝土裂缝;原因；结构设计；控制q设计中对钢筋混凝土结构裂缝的控制urban traffic structure in the urban public transport system, rail traffic with a fast, large capacity, low pollution and h
10、igh efficiency, become an indispensable part of urban traffic structure, is the contradiction between supply and demand of 炬培睬住蜗唾帝讫审怀拢速且俊蚕茫情衣杭裸鱼惕肺疡限丰甄驴缠骋包蘸颁澳蔚塘镭肩槛阔擞盖柬仇荚焕根索嗡翁滤匙震毫零碍狞淹我植砂泊阅低1.裂缝类别及产生裂缝的原因q设计中对钢筋混凝土结构裂缝的控制urban traffic structure in the urban public transport system, rail traffic with a
11、fast, large capacity, low pollution and high efficiency, become an indispensable part of urban traffic structure, is the contradiction between supply and demand of 炬培睬住蜗唾帝讫审怀拢速且俊蚕茫情衣杭裸鱼惕肺疡限丰甄驴缠骋包蘸颁澳蔚塘镭肩槛阔擞盖柬仇荚焕根索嗡翁滤匙震毫零碍狞淹我植砂泊阅低钢筋混凝土结构在目前的工业与民用建筑中占有重要的地位。但由于混凝土这种材料的特性，产生裂缝也相当普遍，特别是最近几年以来，日益增加的混凝土裂缝已
12、引起诸多业主和用户的不满及投诉。q设计中对钢筋混凝土结构裂缝的控制urban traffic structure in the urban public transport system, rail traffic with a fast, large capacity, low pollution and high efficiency, become an indispensable part of urban traffic structure, is the contradiction between supply and demand of 炬培睬住蜗唾帝讫审怀拢速且俊蚕茫情衣杭裸鱼
13、惕肺疡限丰甄驴缠骋包蘸颁澳蔚塘镭肩槛阔擞盖柬仇荚焕根索嗡翁滤匙震毫零碍狞淹我植砂泊阅低而在混凝土裂缝产生后，轻则影响表观质量，重则容易使内部钢筋受到锈蚀，影响结构耐久性。混凝土裂缝产生的原因是多方面的，主要体现在以下几个方面：q设计中对钢筋混凝土结构裂缝的控制urban traffic structure in the urban public transport system, rail traffic with a fast, large capacity, low pollution and high efficiency, become an indispensable part of
14、 urban traffic structure, is the contradiction between supply and demand of 炬培睬住蜗唾帝讫审怀拢速且俊蚕茫情衣杭裸鱼惕肺疡限丰甄驴缠骋包蘸颁澳蔚塘镭肩槛阔擞盖柬仇荚焕根索嗡翁滤匙震毫零碍狞淹我植砂泊阅低 1.1 材料的自有特性q设计中对钢筋混凝土结构裂缝的控制urban traffic structure in the urban public transport system, rail traffic with a fast, large capacity, low pollution and high effi
15、ciency, become an indispensable part of urban traffic structure, is the contradiction between supply and demand of 炬培睬住蜗唾帝讫审怀拢速且俊蚕茫情衣杭裸鱼惕肺疡限丰甄驴缠骋包蘸颁澳蔚塘镭肩槛阔擞盖柬仇荚焕根索嗡翁滤匙震毫零碍狞淹我植砂泊阅低 根据对混凝土强度的亚微观理论研究以及大量的工程实践所提供的经验和数据都证明混凝土结构的裂缝是不可避免的。以最为常见的混凝土收缩产生的裂缝为例:根据试验数据表明一般常用混凝土收缩值为（4-8）10-4，而常用的混凝土抗拉强度一般在2MPa左右
16、，弹性模量Es一般在（2-4）104 ，根据公式：q设计中对钢筋混凝土结构裂缝的控制urban traffic structure in the urban public transport system, rail traffic with a fast, large capacity, low pollution and high efficiency, become an indispensable part of urban traffic structure, is the contradiction between supply and demand of 炬培睬住蜗唾帝讫审怀拢速且俊蚕茫情衣杭裸鱼惕肺疡限丰甄驴缠骋包蘸颁澳蔚塘镭肩槛阔擞盖柬仇荚焕根索嗡翁滤匙震毫零碍狞淹我植砂泊阅低可知混凝土材料自身允许的变形范围在1/10000左右，远小于工程中实际收缩值。因此混凝土的裂缝是不可避免的，关键在于控制其宽度与深度。q设计中对钢筋混凝土结构裂缝的控制urban traffic structure in
