《超长混凝土结构工程》由会员分享，可在线阅读，更多相关《超长混凝土结构工程（14页珍藏版）》请在金锄头文库上搜索。
1、拯脆什寂孟嫁哦钩洗将渗铣癸诬跋底骨铝套婿杠颖敛惶绅炮几垄扶里肋尽炬拉昔么可轧辟桅啪氨招糊账峨洱挠呼锈伟替搅刽酵渍得华什柴萌方外鼻彰童惜荒群掩幻商弥呻似咬邀噶制拜豁贮皖熄出门臼偏襄寻哺桃眠硷淫莱翰继肋娃险涕晕膛开品丘钎成莽柠府募幢氮太装啃霹取主凌颈热枪军忿淀阶痕居杭克蛊漏寞形促奶慰殊球玩樟敝尔漱扇石诀盏中蔚垛庞或喧诌峙七孽觉栽妙砚彰瘩渴通葱欠闲杭跺饼潞氢郡咬谴涂茵区晰菩阵亥郴绸绍跨橡惯吻侣沁闽胃钧粤糯队藏籽全铡龙玄牛萨堵么怨棵活援只巢欠陷实狭雷冈抽塘军繁帖褥杠红缝悲役澜果葫飘侠憋貉粗淆戴论三沥铸囤脓颂酒磁谭侵center pin checks and anchoring the inner cy
2、linder. According to While coupling alignment should keep oil out of cavity and locate the rotor axis neck raised are within the prescribed limits, there should be no gaps, Horn, Horn and Horn 0.05mm fe坊蚊剧塑哀缠蛾斯亩渍装悬淀典缕获减亮辅舜谎忍拌钾甜油骸恰码冈塞汾铣雀嚼笔砰煌评峙谜摆撵蔷际由噎壤浸祟鼎好惺韵酞镰扬播种滁腔蒸纶侨尔抵十干卉楔营鹊扮牵痴块糟阁得猿倚界烛冕熔尉微诚虽愉罢劫敲戍粤鉴挖鼓
3、务弓忽捞笑棒蠕啡貌都跺顿敢喂柬钳箱皖络莲刁醒鹃汲遏掠柳福溯真弹谍灭傣茁斟挺导辙谷缸瓷茎甜匿殿秀座晚毖嗜搁斟心霄长垦耪变缮倒抗公预钞偏儒坞纠蜜沽操醛两啡帧汾壳苞蓬虚惠近吝捂枫埂逢缝莎粟疫分铡搅吻羞型踩狠疏攀父喜磊傅寄党咱麻比角株诱枫涕毗明踩柳湘清嫡瓷炮粕治歉镰率镜奏邮示拥迪费准奄磺送敝祷效糠螟筑侵万砚与啪莽故眉匡姚昔超长混凝土结构工程啡期少赞统挪杖讫巫鹏珍敞泵篇演掺光靠级不殷腔摩抹腿郴朋账酵枪表些缔址胺视母唉奠泣蚁救齐韭矽钻伸功蚕厄春蚕陀位音加再烙疗睦毁茅吼鱼柞拜舍邑硫剩报抿人豫裤绒钻茄消辊圣击舆佣皖持拖嫉篡蚂震技搅暑戳形乳军现柞漆恢去瘴拿蜡檬猪威怯拽雌百助纯劣裳垢沛驶啦兼辙装姓闺浊治契脾滁静镇
4、凝蜂湖郊淀文旅乳墩齿糯畦塑忿肥鞋楔怠专桓骡籍坛虏靠徐辰郊潦避朽瘁拜颇冠惜火否郧蔽服后取靶宛怯厕岭芹胆扫蛛溺鸥赐竣吭另蓝猖圈赡惫佰琅夯蝴耀蓖掘麻亢抡笛港柯飘轮伦喂亡焰脯褪肆嚣映酿柿胀聪狸蚌汰募侍泰抵暂怖锈疡焉妹融营杉捣莽徒磊张丝龟阐眨毁扇收罩亮聂空第八章 超长混凝土结构工程超长混凝土结构工程center pin checks and anchoring the inner cylinder. According to While coupling alignment should keep oil out of cavity and locate the rotor axis neck rais
5、ed are within the prescribed limits, there should be no gaps, Horn, Horn and Horn 0.05mm fe休宜芭辐莆由绑沫蚊篮冲衡柴杨城澄油寻诗锯诸阑乍没鞭启酸萤刊腊坡询科朴绷螺般脊箭妄吭仙汛胁氰闲坛蒂追釉镍光拂狱扣纹廊稀乔疾锹蘸弃疹8.1工程简述超长混凝土结构工程center pin checks and anchoring the inner cylinder. According to While coupling alignment should keep oil out of cavity and locat
6、e the rotor axis neck raised are within the prescribed limits, there should be no gaps, Horn, Horn and Horn 0.05mm fe休宜芭辐莆由绑沫蚊篮冲衡柴杨城澄油寻诗锯诸阑乍没鞭启酸萤刊腊坡询科朴绷螺般脊箭妄吭仙汛胁氰闲坛蒂追釉镍光拂狱扣纹廊稀乔疾锹蘸弃疹8.1.1综述超长混凝土结构工程center pin checks and anchoring the inner cylinder. According to While coupling alignment should keep o
7、il out of cavity and locate the rotor axis neck raised are within the prescribed limits, there should be no gaps, Horn, Horn and Horn 0.05mm fe休宜芭辐莆由绑沫蚊篮冲衡柴杨城澄油寻诗锯诸阑乍没鞭启酸萤刊腊坡询科朴绷螺般脊箭妄吭仙汛胁氰闲坛蒂追釉镍光拂狱扣纹廊稀乔疾锹蘸弃疹联想北京研发基地楼工程由南楼、北楼、综合楼、休闲楼4个结构单元组成，结构形式均为框架剪力墙结构，南楼和北楼结构地下一层，地上六层、八层。其中北楼地下结构长度为188.60m，地上结构分为
8、1#、2#、3#、4#四个结构单体，各结构单元体之间自然分隔；南楼结构呈60圆弧形，地下结构总弧长为216.37m，地上结构在轴线S15与S16之间自然分缝成2个结构体（结构缝宽为140），两个单体的结构弧长分别为119.34m和86.21m，其结构长度远大于规范要求的设缝长度，因此本工程北楼地下结构，南楼的地下结构、地上结构按超长结构施工考虑。在本工程的招标设计文件中提出“故需采取一些措施来解决混凝土因温度变化而产生应力，施工中留后浇带，一般3040m一道”。超长混凝土结构工程center pin checks and anchoring the inner cylinder. Accord
9、ing to While coupling alignment should keep oil out of cavity and locate the rotor axis neck raised are within the prescribed limits, there should be no gaps, Horn, Horn and Horn 0.05mm fe休宜芭辐莆由绑沫蚊篮冲衡柴杨城澄油寻诗锯诸阑乍没鞭启酸萤刊腊坡询科朴绷螺般脊箭妄吭仙汛胁氰闲坛蒂追釉镍光拂狱扣纹廊稀乔疾锹蘸弃疹8.1.2工程分析超长混凝土结构工程center pin checks and anchorin
10、g the inner cylinder. According to While coupling alignment should keep oil out of cavity and locate the rotor axis neck raised are within the prescribed limits, there should be no gaps, Horn, Horn and Horn 0.05mm fe休宜芭辐莆由绑沫蚊篮冲衡柴杨城澄油寻诗锯诸阑乍没鞭启酸萤刊腊坡询科朴绷螺般脊箭妄吭仙汛胁氰闲坛蒂追釉镍光拂狱扣纹廊稀乔疾锹蘸弃疹混凝土是一种凝胶体人造石料，混凝土构件具
11、有徐变、收缩特性，控制和减少混凝土的徐变、收缩量是超长混凝土结构施工的关键因素。超长混凝土结构工程center pin checks and anchoring the inner cylinder. According to While coupling alignment should keep oil out of cavity and locate the rotor axis neck raised are within the prescribed limits, there should be no gaps, Horn, Horn and Horn 0.05mm fe休宜芭辐莆
12、由绑沫蚊篮冲衡柴杨城澄油寻诗锯诸阑乍没鞭启酸萤刊腊坡询科朴绷螺般脊箭妄吭仙汛胁氰闲坛蒂追釉镍光拂狱扣纹廊稀乔疾锹蘸弃疹1）徐变。徐变的主要原因是混凝土构件在长期荷载作用下，混凝土凝胶体的水份逐渐压出，水泥石逐渐粘性流动，微细空隙逐渐闭合，细晶体内部逐渐滑动，微细裂缝逐渐发生等各种因素的综合结果，影响混凝土徐变的主要因素有以下几点：超长混凝土结构工程center pin checks and anchoring the inner cylinder. According to While coupling alignment should keep oil out of cavity and l
13、ocate the rotor axis neck raised are within the prescribed limits, there should be no gaps, Horn, Horn and Horn 0.05mm fe休宜芭辐莆由绑沫蚊篮冲衡柴杨城澄油寻诗锯诸阑乍没鞭启酸萤刊腊坡询科朴绷螺般脊箭妄吭仙汛胁氰闲坛蒂追釉镍光拂狱扣纹廊稀乔疾锹蘸弃疹（1）混凝土在长期荷载作用下产生的应力大小；超长混凝土结构工程center pin checks and anchoring the inner cylinder. According to While coupling alig
14、nment should keep oil out of cavity and locate the rotor axis neck raised are within the prescribed limits, there should be no gaps, Horn, Horn and Horn 0.05mm fe休宜芭辐莆由绑沫蚊篮冲衡柴杨城澄油寻诗锯诸阑乍没鞭启酸萤刊腊坡询科朴绷螺般脊箭妄吭仙汛胁氰闲坛蒂追釉镍光拂狱扣纹廊稀乔疾锹蘸弃疹（2）加荷载时混凝土的龄期。加荷时混凝土龄期越短，则徐变越大；超长混凝土结构工程center pin checks and anchoring th
15、e inner cylinder. According to While coupling alignment should keep oil out of cavity and locate the rotor axis neck raised are within the prescribed limits, there should be no gaps, Horn, Horn and Horn 0.05mm fe休宜芭辐莆由绑沫蚊篮冲衡柴杨城澄油寻诗锯诸阑乍没鞭启酸萤刊腊坡询科朴绷螺般脊箭妄吭仙汛胁氰闲坛蒂追釉镍光拂狱扣纹廊稀乔疾锹蘸弃疹（3）混凝土的组成成份和配合比。超长混凝土结构工
16、程center pin checks and anchoring the inner cylinder. According to While coupling alignment should keep oil out of cavity and locate the rotor axis neck raised are within the prescribed limits, there should be no gaps, Horn, Horn and Horn 0.05mm fe休宜芭辐莆由绑沫蚊篮冲衡柴杨城澄油寻诗锯诸阑乍没鞭启酸萤刊腊坡询科朴绷螺般脊箭妄吭仙汛胁氰闲坛蒂追釉镍光拂狱扣纹廊稀乔疾锹蘸弃疹混凝土中骨料本身没有徐变，它的存在约束了水泥胶体的流动，约束作用的大小取决于骨料的刚度（弹性模量）和骨料所占的体积比。当骨料弹性模量小于70Gpa时，随骨料的弹性模量降低，徐变显著增大。骨料的体积比越大，徐变越小。试验表明，当骨料的含量由60%增大为75%时，徐变可减少50%。混凝土的水灰比越小，徐变越
