二 第一章绪论.............................................................................................1 1.1 前言机
....................................................................................................1 ............................................................................................2
1.2 1.3
研研
究究
动目
的............................................................................................3 体
.................................................................................4
第二章旧桥柱试
桥
梁
设
计
规
2.1
范....................................................................................4 2.1.1 公路桥梁工程设计规范.............................................................4 范体计察察
.............................................................5
2.1.2
2.2
公路桥梁耐震设计规
圆
形2.2.1 2.2.2
旧
试桥
柱体试
验验验
试设观观观
................................................................................7 ...................................................................................7 .................................................................9 .................................................................10
2.2.3 2.2.4
BMCL100
试试
BMCL50BMC4
察.....................................................................11 2.2.5 圆形旧桥柱试体破坏状况比较.....................................14 2.2.6 圆形旧桥柱试体侧力-位移图比较................................15 2.2.7 圆形旧桥柱试体缺点....................................................15 第三章补强及修复设计
.......................................................................17
3.2
3.1
前
言..................................................................................................17 桥柱理论分
析..................................................................................17 3.2.1 围束混凝土之应力-应变曲线..................................................17 线
3.2.2
纵向钢筋之应力-应变曲
3.2.3
断
面
分
......................................................24
析...................................................................................26 3.3 RC包覆补强设计理
论...................................................................31 3.3.1 剪力强度不足补强设计
...........................................................31
3.3.2
桥
柱
韧
性
补
强
设
计...................................................................38 3.3.3 避免桥柱主筋挫屈之补强设计...............................................42 3.3.4 桥柱主筋搭接长度不足之补强设
计计计计
.......................................43 3.3.5 主筋中断点附试
近之补体
强设设
...................................................45 3.4
..........................................................................................47 ...........................................................................48
三
3.4.1 3.4.2
补修
强试复
试
体设体
设
计...........................................................................50 第四章试体施工与试验规划工毛筋浆置置置置
...............................................................53
..................................................................................................53 ...........................................................................................53 .......................................................................................53
...........................................................................55 ..........................................................................................56
...........................................................................56 ...................................................................................57 ...........................................................................57
4.1.3 4.2 4.2.1 4.2.2 4.2.3 4.3
量4.1.2 组试施试测试钢4.1
4.1.1
绑模验力系
体系验统与
施打钢灌布统装
装装程
序..........................................................................................58 第五章补强试体与修复试体试验观察察察察察论
察
...............................................61
5.1
5.2 5.3. 5.4
RCCL1
RCCL2RCC2BMCL50-RCBMC4-RC章试
试体
验侧
试结力
果-试试试试验验验验验与位
观观观观观讨移
..........................................................................61 ..........................................................................62 .............................................................................63 .................................................................65 .....................................................................66 .......................................................................68
5.5 第
六
6.1
图.............................................................................68 6.2 试体侧力-位移图包络线
.................................................................70
6.3
试
体
消
能..........................................................................................71 6.4 补强试体侧力-位移图包络线
与体体
理论值之比较............................72 6.4.1 6.4.2 6.4.3
旧补修
桥柱强复
试试试
...............................................................................72 ...................................................................................72
体...................................................................................73 6.5 弯矩消能与总消能之比较察望论望
..............................................................73
6.6
桥第
柱七
试章
体结7.1 7.2 参
建
议考
与曲论
率与
观展结展文
..........................................................................74
...............................................................................75
..................................................................................................75
......................................................................................76
献.....................................................................................................78 四 表2.1 圆形标准桥柱试体设计规格表...................................................80 表3.1a BMCL100试体箍筋设计表....................................................81 表
....................................................82
表表表3.1b 3.2a 3.2b
BMCL100BMC4BMC4
试体箍筋设计试
体
箍
筋
设
计
表..........................................................83 试体箍筋设计
表..........................................................84 表3.3 圆形桥柱补强及修复试体设计规格表.......................................85 表6.1 桥柱试体强度、劲度、韧性及总消能图图
.......................................86
五
图
图图2.1 2.2 2.3 BMCL100BMCL50BMC4
试试试
体体体
设设设
计计计
................................................................87 ..................................................................88
图.......................................................................89 图图...............................................................90 图
.................................................................90
图图
2.4 BMCL1002.5 2.6
BMCL50BMC4
侧力-位移侧力-位移位
移
侧力-
图......................................................................91 图3.1 Mander et al. 理论之混凝土应力-应变曲线..............................92
图
3.3 圆形桥柱断面受围束示意
3.3 圆形桥柱断面围束力示意
图.......................................................92 图
图.......................................................93 图3.4 Saatcioglu and Razvi 之围束混凝土应力-应变曲线.................93 图3.5 Hoshikuma et al. 之围束混凝土应力-应变曲线.......................94 图3.6 钢筋之应力-应变曲线 Mirza and MacGregor.........................94 图3.7 断面分析法受力示意图...............................................................95 图3.8 断面分析法程式与补强设计流程图
...........................................96
图
3.9
断
面
之
弯
矩
-曲
率
曲
线.................................................................97 图3.10 悬臂式桥柱之侧向位
移...............................................................97 图3.11 a 植筋RC包覆补强示意图....................................................98 图
3.11 b 无植筋
RC
包覆补强示意
图................................................98 图3.12 圆柱及矩形柱之RC包覆补强示意图.....................................99
图
3.13
桥柱单向与双向弯曲示意3.14 桥柱之横向钢筋有效剪3.15 轴向力对桥柱剪力之关3.16
桥
柱
剪
力
破
坏
模
图...................................................100 图力.......................................................100 图系
.......................................................101
图
式...................................................................101 图强
...........................................................102
图
3.17 圆形桥柱3.18
钢
筋
双
RC模
包覆补数
示
意
图...................................................................102 图3.19 钢筋搭接所需之围束力示意图...............................................103
图
3.20 图
桥柱主筋搭接破坏模3.21
桥柱主筋断筋位置
式...........................................................103
图...............................................................104 图3.22 BMCL100之剪力-位移韧性比关系图Mander....................105 图
3.23 BMCL100
之剪力-位移韧性比关系图
Saatcioglu...............105 六图3.24 BMCL100之剪力-位移韧性比关系图Hoshikuma..............106 图Mander..........................106 图Saatcioglu......................107 图Hoshikuma....................107
3.25 BMC43.26 BMC43.27 BMC4图
3.28
之剪力-位移韧性比关系图之剪力-位移韧性比关系图之剪力-位移韧性比关系图RCCL1
试
体
设
计
图.................................................................108 图3.29 RCCL2、RCC2、BMC4-RC、BMCL50-RC
试
体
设
计
图
....109
图
4.1
试
验
装
置
示
意
图.........................................................................110 图4.2 反覆载重试验位移历时图
..........................................................111
图图图6.1 6.2 6.3
RCCL1RCCL2RCC2
侧
力
-位
移
图..................................................................112 图
..................................................................112
侧力-位移侧
力
-位
移
图....................................................................113 图图.............................................................113 图
6.4 BMC4-RC侧力-位移侧力-位移
6.5 BMCL50-RC
图........................................................114 图6.6 BMCL100补强前后之侧力-位移包络线.................................114 图6.7 BMC4补强及修复前后之侧力-位移包络线...........................115 图
6.8 BMCL50
修复前后之侧力-位移包络
补强前后各位移之消能
补强前后之总消能
线...................................115 图图......................................116
图
6.9 BMCL1006.10
BMCL100
图............................................116 图6.11 BMC4补强及修复前后各位移之消能图...............................117 图
6.12 BMC4
补强及修复前后之总消能
修复前后各位移之消能修复前后之总消能理论与试验值比较
理论与试验值比较
图.......................................117 图图......................................118
图
6.13 BMCL506.14 图
BMCL50
图..............................................118 6.15 BMC4
图...................................................119 图图............................................119 图图..............................................120 图图.................................................120 图图.................................................121 图图....................................................121 图图............................................122 图
6.16 BMCL100
6.17 BMCL506.18 RCCL16.19 RCCL26.20 RCC2
理论与试验值比较理论与试验值比较理论与试验值比较理论与试验值比较
理论与试验值比较理论与试验值比较
6.21 BMC4-RC
6.22 BMCL50-RC
图........................................122 图图...........................................123 图图......................................123 七图
6.23 BMC4弯矩消能与总消能比较弯矩消能与总消能比较弯矩消能与总消能比较
6.24 BMCL506.25 RCC2
图............................................124 图6.26 BMC4-RC弯矩消能与总消能比较图....................................124 图图
................................125
图
6.27 BMCL50-RC弯矩消能与总消能比较
6.28
BMC4
柱
身
曲
率
变
化
图...........................................................125 图图......................................................126
图
6.29 BMCL506.30
RCC2
柱身曲率变化
柱身曲率变化
柱身曲率变化柱身曲率变化
东侧破坏状西侧破坏状东侧破坏状西侧破坏状东侧破坏状西侧破坏状东侧破坏情西侧破坏情东侧破坏情西侧破坏情东侧破坏情西侧破坏情东侧破坏情
图............................................................126 图图....................................................127 图
6.31 BMC4-RC
6.32 BMCL50-RC
图................................................127 八 照片况......................................................128 况......................................................128 况........................................................129 况........................................................129 况.............................................................130 况.............................................................130 况...........................................................131 况...........................................................131 况...........................................................132 况...........................................................132 况..............................................................133
照片照片照片照片照片照片照片照片照片照片照片
2.1 BMCL1002.2 2.3 2.4 2.5 2.6 5.1 5.2 5.3 5.4 5.5 5.6 BMCL100BMCL50BMCL50BMC4BMC4RCCL1RCCL1RCCL2RCCL2RCC2RCC2
况..............................................................133 照片况..................................................134 况..................................................134
照片照片
5.8
5.7 BMCL50-RCBMCL50-RCBMC4-RC
西侧破坏情东侧破坏情
5.9
况......................................................135 照片况....................................................135
5.10 BMC4-RC西侧破坏情
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