高大模架方案交底.docx

资料编号19 一高大模架专项施工方案交底技术交底记录表C2-1工程名称施工单位审核人分包单位施组总设计交底交底部位单位工程施组交底施工方案交底接受交底范围地下室车库结构0专项施工方案交底施工作业交底交底内容：1 .危大工程概况按照住房城乡建设部办公厅关于实施危险性较大的分部分项工程安全管理规定有关问题的通知建办质(2018)31号文中附件2规定：“超过一定规模的危险性较大的分部分项工程范围”二、模板工程及支撑体系中第(二)条：混凝土模板支撑工程：搭设高度8m及以上；搭设跨度18m及以上，施工总荷载15kN11T及以上；集中线荷载20kNm及以上的工程施工单位应当组织专家对专项方案进行论证。经过更核施工图纸，超危大范围主要包括：地下3层框架梁、地下2层框架梁、地下1层框架梁构件的集中线荷载超限和地下1层局部楼板模板支撑架体搭设高度超8m、地下1层局部框架梁跨度超18m和集中线荷载同时超限。1.1 涉及超危大模板支撑体系的各层构件情况表卜1超限构件框架断面尺寸部位楼层断面尺寸(Inm)支撑架体形式是否超限中性载限架於集线荷超框殊地下3层顶板500X1000、600X900、600×1000.400×1350立杆盘扣架，水平杆为钢管与楼板架体连接成一体是地下2层顶板500×1000>600X900、600X950、600×1000>600Xl200>700Xl200>700X900、700Xl400>800X1200立杆盘扣架，水平杆为钢管与楼板架体连接成一体是地下1层T.85顶板500X1000、500X1200、600×1000s600X1200、600×1100>600X1300、700X800、700X1000、700X1200、700X1300、700X1400、700X1600.800×1000>800X1600>900X1600立杆盘扣架，水平杆为钢管与楼板架体连接成一体是地下1层-0.07顶板500×1000>500X1200、600X1000.600Xl200>600X1300、700X900、700×1000>700X1200.700X1400.800×1200>1100X2000立杆盘扣架，水平杆为钢管与楼板架体连接成一体是度限架Q跨超框跺地下1层顶板700X1200立杆盘扣架，水平杆为钢管与楼板架体连接成一体是超高顶板地下1层顶板H=120,H=180立杆水平杆盘扣架是L2超限.模架支撑体系(搭设高度8m及以上)的部位具体部位统计如下：表1-2高度超过8m及跨度超过18m构件统计表序号楼层高支模部位名称轴线位置支撑净高度(m)板厚(n)梁截面(m)(b×h)梁跨度1.(m)1BlB2层至Bl层7轴一10轴/11.818070Q三×120018.322.3跃层K轴-N轴(11.87)(翩250)1.3集中线荷载20kNm及以上超限模架支撑体系具体部位统计如下:表1-3B3层超限梁统计楼层轴线梁截面b×h(mm)梁跨度L(m)板厚B(mm)层高H(m)搭设高度(ID)净高度(m)地下3层顶板1轴-3轴/L轴400X13507150/1804.132.782.781轴-3轴/N轴400X13508.7150/1804.132.782.783轴/M轴-N轴400X13508.4150/1804.132.782.782轴/F轴-G轴500X100011.41204.133.133.139轴/Q轴-P轴500X100011.21204.133.133.1312轴-13轴/P轴-N轴600X90012.91204.133.233.2313轴-16轴/C轴600X10008.42504.133.133.1313轴-16轴/B轴600X10008.42504.133.133.1312轴-13轴/B轴500X10008.72504.133.133.1314轴/A轴-D轴600X10008.42504.133.133.1315轴/A轴-D轴600X10008.42504.133.133.1315轴/P轴-N轴600X10009.91204.133.133.1316轴/B轴-D轴600X100011.41004.133.133.13表1-4B2层超限梁统计楼层轴线梁截面b×h(mm)梁跨度1.(m)板厚B(mm)层高H(m)搭设高度(m)净高度(m)地卜.2层顶板1轴-2轴/A轴-B轴700X12004.52505.44.24.22轴/A轴-B轴800×12004.52505.44.24.22轴一3轴/S轴一R轴600×12007.81205.44.24.23轴/A轴-B轴700X14004.52505.4443轴-4轴/A轴-B轴600×12004.52505.44.24.23轴/S轴-T轴600×12006.251205.44.24.23轴-4轴/T轴600X90082505.44.54.54轴/T轴600X90082505.44.54.54轴-6轴/G轴600×100016.11205.44.44.45轴/A轴-B轴700X9008.62505.44.274.275轴-6轴/G轴600X100013.91205.44.44.46轴-8轴/K轴-M轴600X90020.51205.44.54.59轴-10轴/M轴-N轴600X95010.81205.44.454.4510轴-11轴/F轴-J轴500X10008.61005.44.44.411轴/P轴-R轴600X120014.41205.44.24.2H轴/H轴-J轴500X10009.91205.44.44.411轴/H轴-G轴500X10007.61205.44.44.412轴-13轴/N轴-M轴600×12007.41205.44.24.212轴-13轴/N轴-P轴600X100012.91205.44.44.413轴/N轴-Q轴600X100014.751205.44.44.414轴-16轴/H轴600X100015.61205.44.44.414轴/G轴-H轴600X10006.61205.44.44.415轴/G轴-J轴600X100011.51205.44.44.415Q轴-R轴600X12003.21005.44.24.215轴/Q轴-N轴600X120020.851205.44.24.216WP轴-Q轴500X100011.41205.44.44.4表1-5Bl层超限梁统计楼层部位轴线梁截面b×h(mm)梁跨度L（m）板厚B(nun)层高H(m)搭设高度（m）净高度（m）地下1层顶板（-1.85m覆土顶板）1轴-20轴/A轴T轴500X10007.72506.655.655.65500X12005.92504.873.673.67600X10007.72506.655.655.65600X12007.22506.655.455.45600X11007.72506.655.555.55600X13008.82504.873.573.57700X8007.12504.874.074.07700X10007.72504.873.873.87700X120010.72506.655.455.45700X130010.32504.873.573.57700X14008.82506.655.255.25700X16007.12504.873.273.27800X160012.12506.655.055.05800X10008.82504.873.873.87900X160012.22506.655.055.05地下1层顶板（-0.07m非覆土顶板）1轴19轴/B轴-T轴500X100013.92206.655.655.65500X120013.92206.655.455.45600X100014.72206.655.655.65600X12008.52206.655.455.45600X130052206.655.355.35700X90011.12206.655.755.75700X100011.22206.655.655.65700X120022.92206.6510.8510.85700X1400182206.655.255.25800X120010.42206.655.455.458轴一9轴/J轴-K轴1100X200010.42206.654.654.652.模架施工特点、重点及难点对策2.1高大模架特点（1）本工程模架施工重点、难点主要为大截面尺寸梁的梁底支撑及侧模布置，梁最大截面尺寸为70OX800至IloOX200Omm（BI层-0.07m,8-9/J-K轴），集中线荷载超过20kNm及以上。需严格按照危险性较大的分部分项工程安全管理办法（建办质201831号）编制专项施工方案，专项技术交底，严格按照要求进行旁站施工，严格落实高大模架挂牌制度和验收制度。（2）结构梁、板顶面标高较多，弧形梁较多，模架基础标高不统一，局部梁柱接头处梁截面大小不一、梁底标高错落多样、梁梁成不均匀放射性互交，对模架支撑体系布置造成很大的困难。2.2模板工程的重点2.2.1安全管理本工程超限梁较多，超限梁各种截面