4.2.4测点布置 ① 应变测点
H1H2H3H7H8H9下游侧上游侧下游侧上游侧H4H5H6H10H11H12上游幅桥下游侧主拱肋H'-H'截面纵向应变布置点上游幅桥上游侧主拱肋H'-H'截面纵向应变布置点I1I2I3I7I8I9下游侧上游侧下游侧上游侧I4I5I6I10I11I12上游幅桥下游侧主拱肋I'-I'截面纵向应变布置点上游幅桥上游侧主拱肋I'-I'截面纵向应变布置点M1M2M3M7M8M9下游侧上游侧下游侧上游侧M4M5M6M10M11M12上游幅桥下游侧主拱肋M'-M'截面纵向应变布置点上游幅桥上游侧主拱肋M'-M'截面纵向应变布置点
图 4-20 上游幅主拱圈拱肋纵向应变测试布置点示意图(单位：cm)
H1'H2'H3'H7'H8'H9'下游侧上游侧下游侧上游侧H4'H6'H5'下游幅桥下游侧主拱肋H'-H'截面纵向应变布置点H10'H11'H12'下游幅桥上游侧主拱肋H'-H'截面纵向应变布置点I1'I2'I3'I7'I8'I9'下游侧上游侧下游侧上游侧I4'I5'I6'I10'I11'I12'下游幅桥下游侧主拱肋I'-I'截面纵向应变布置点下游幅桥上游侧主拱肋I'-I'截面纵向应变布置点M1'M2'M3'M7'M8'M9'下游侧上游侧下游侧上游侧M4'M5'M6'M10'M11'M12'下游幅桥下游侧主拱肋M'-M'截面纵向应变布置点下游幅桥上游侧主拱肋M'-M'截面纵向应变布置点
图 4-21 下游幅主拱圈拱肋纵向应变测试布置点示意图(单位：cm)
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图4-22上游幅桥纵梁应变测试布置点示意图
2975A'125250A'22520752675A'-A'截面A'325250A'425下游侧上游侧2975E'125250E'22520752675E'-E'截面E'325250E'425下游侧上游侧2975K'125250K'22520752675K'-K'截面K'325250K'425下游侧上游侧2975P'125250P'22520752675P'-P'截面P'325250P'425下游侧上游侧2975T'125250T'22520752675T'-T'截面T'325250T'425下游侧上游侧
图4-23下游幅桥纵梁应变测试布置点示意图
29753001038西城大道103830030018515L1400L2L315185经一路下游侧L-L截面（a）上游幅桥横梁应变测试布置点示意图
2975上游侧
3003001038西城大道1038300L'1L'2L'3经一路下游侧4001518518515L'-L'截面（b）下游幅桥横梁应变测试布置点示意图
上游侧
图4-24横梁应变测试点布置图
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