《船用钢质斜梯》

1CB/T81—2024船用钢质斜梯本文件规定了船用钢质斜梯（以下简称斜梯）的分类和标记、要求、试验方法、检验规则以及标志和运输。本文件适用于露天区域斜梯的设计、制造和验收。机舱、货舱、室内舱也可选用。2规范性引用文件下列文件对于本文件的应用是必不可少的。凡是注日期的引用文件，仅注日期的版本适用于本文件。凡是不注日期的引用文件，其最新版本（包括所有的修改单）适用于本文件。GB/T97.1-2002平垫圈A级GB/T700-2006碳素结构钢GB/T3075-2011船用钢管简选系列GB/T3274-2017碳素结构钢和低合金结构钢热轧钢板和钢带GB/T5783-2016六角头螺栓全螺纹GB/T6170-20151型六角螺母GB/T8923.1-2011涂覆涂料前钢材表面处理表面清洁度的目视评定第1部分：未涂覆过的钢材表面和全面清除原有涂层后的钢材表面的锈蚀等级和处理等级3术语和定义本文件无术语和定义。4分类和标记4.1斜梯的主要参数斜梯的主要参数见表1。2CB/T81－2024表1斜梯的主要参数单位为毫米斜度α梯宽B梯架宽W踏步深D梯架长L扶手距梯架距离L1梯架型材45°700、800、225941～5473696L50×50×6600、700、800、1000220875～5053630L50×50×6200811～4717560L50×50×660°600、700、800766～4462486L50×50×634.2结构和尺寸4.2.1斜梯的结构和基本尺寸见图1和表2～表5。356CB/T81—2024 BhP600PH=P*(n-1)+h1000a°W400栏杆柱等间距布置,间距(600~1300)200R100LR100L17348R100CC9hP600PH=P*(n-1)+h1000a°W400栏杆柱等间距布置,间距(600~1300)200R100LR100L17348R100CC9a)斜梯主体4CB/T81－202433D孔22孔22 2652孔22孔22 2652662-踏步详图 C-C33D视图 C-C336x69-上框架板9-下框架板************ 6 ** 6 55b)斜梯主要零部件详图5CB/T81—2024防尘板固定形式单位为毫米防尘板上止点bbb88aaa防尘板下止点斜梯底部防尘板818螺栓/螺母/垫圈上安装板处防尘板6防尘板碰上安装板处,防尘板布置详图说明：1-梯架；2-踏步板；3-顶部扶手/支撑；4-中间扶手；5-螺栓/螺母/垫圈；6-上/下安装板；7-连接板；8-可拆防尘板；9-上/下框架板；6CB/T81－20241.防尘板(8)由选用者自行选用；2.连接板(7)安装在第2级,第4级,第63.上/下框架板(9)*尺寸,对应角钢规格,其它未标尺寸根据斜梯角度适当调整；4.斜梯扶手/支撑(3)采用Ø34×3管子,可选用Ø43.4×3.5焊接钢管；5.斜体梯架(1)采用L50X50X6角钢,可选用L63X63X6角钢。7CB/T81—20244.2.245°斜梯的主要尺寸见表2。表245°斜梯的主要尺寸单位为毫米踏步n层高H尺寸扶手中间支撑数重量LPhB=700B=800B=10004800941200200078.583.092.25200200197.1102.8114.362002001113.4120.2134.072002002132.0140.0156.1820742002002148.4157.5175.9923572002002164.0174.3195.024993179.5190.9213.9200026402002003183.3194.7217.7210027822102103187.1198.5221.5220029242002003199.0211.5236.8230030652092103202.8215.4240.7240032072002003215.3229.0256.6250033492082123219.1232.8260.4260034902002003231.0245.8275.7270036322082043234.8249.6279.5280037732002003247.3263.2295.4290039152072094254.1270.0302.2300040572002004265.9283.0317.5310041982072024269.8286.9321.4320043402002004282.2300.5337.3330044822062104286.1304.3341.1340046232002004297.9317.3356.4350047652062044301.8321.1360.2360049072002005317.2337.7379.1370050485329.0350.7394.4380051902002005332.9354.5398.2390053322052105336.7358.4402.1400054732002005349.1371.9417.93.甲板开孔推荐尺寸:2450mm×(B+2508CB/T81－20244.2.350°斜梯的主要尺寸见表2。表350°斜梯的主要尺寸单位为毫米踏步n层高H尺寸扶手中间支撑数重量LPhB=600B=700B=800B=10004800875200200065.369.874.383.25200200079.184.790.3101.56200200189.695.2100.8112.072002001103.4110.1116.8130.382002002120.6128.4136.3152.0821812252252134.4143.4152.3170.2923112112122144.6154.7164.8185.09200024422222242148.2158.3168.4188.5210025722102103161.8173.0184.2206.6220027032202203165.4176.6187.8210.2230028332092103175.6188.0200.3224.9240029642182203179.2191.5203.8228.5250030942082123190.1203.5216.9243.8260032252172133193.6207.0220.5247.4270033552252253197.1210.6224.0250.9280034872152203207.4222.0236.5265.7290036162232243210.9225.5240.1269.2300037472142183221.8237.5253.2284.5310038782212274228.2243.8259.5290.9320040082132184238.4255.2272.0305.6330041392202204241.9258.7275.5309.1340042702272224245.5262.3279.1312.7350044002192154256.4274.3292.2328.0360045302252254259.9277.8295.7331.6370046602182124263.4281.3299.3335.1380047912112134274.3293.4312.4350.5390049222052104284.6304.7324.9365.2400050532112025297.6318.9340.2382.83.甲板开孔推荐尺寸:2250mm×(B+2509CB/T81—20244.2.455°斜梯的主要尺寸见表2。表455°斜梯的主要尺寸单位为毫米踏步n层高H尺寸扶手中间支撑数重量LPhB=600B=700B=800B=10003800811265270054.657.760.867.04250250067.972.176.184.45240240183.288.393.4103.76233235196.5102.6108.8121.172282322111.7118.9126.0140.4820302252252125.0133.2141.4157.8821532372412128.3136.5144.7161.29200022752222242137.7147.0156.2174.79210024002332363143.5152.8162.0180.5220025202202203153.5163.8174.0194.6230026422302303156.8167.1177.3197.9240027632402403160.1170.4180.6201.2250028862272303169.6180.9192.1214.8260030072362403172.9184.2195.4218.1270031302252253182.9195.2207.5232.2280032522332373186.2198.6210.8235.5290033742232243195.7209.1222.3249.1300034962312283199.0212.4225.6252.4310036182382444204.7218.1231.4258.2320037402292234214.7229.1243.4272.2330038622362324218.0232.4246.7275.6340039852272224227.5243.0258.3289.2350041072332384230.8246.3261.6292.5360042302252254240.8257.3273.6306.6370043502312354244.1260.6276.9309.9380044732242164253.6271.1288.4323.4390045952292364256.9274.4291.7326.8400047172352405262.6280.1297.5332.53.甲板开孔推荐尺寸:1950mm×(B+250CB/T81－20244.2.560°斜梯的主要尺寸见表2。表560°斜梯的主要尺寸单位为毫米踏步n层高H尺寸扶手中间支撑数重量kgLPhB=600B=700B=8003800766265270052.255.157.94998250250064.668.472683.488989.694.36266270299.3105.0110.672572582111.2117.9124.5720362712742114.4121.0127.68200021522502502123.6131.2138.78210022682622663128.8136.4144.08220023832752753132.0139.6147.19230025002552603140.8149.3157.89240026142672643143.9152.4160.9250027302502503153.1162.6172.0260028442602603156.2165.7175.1270029612702703159.4168.9178.3280030762552503168.2178.6189.0290031912642603171.3181.7192.1300033052732703174.4184.9195.2310034232582624185.8197.2208.5320035382672634188.9200.3211.6330036522752754192.0203.4214.7340037692622564200.8213.2225.4350038842692724203.9216.3228.5360040002572594213.2226.5239.6370041152642684216.3229.6242.8380042312712774219.4232.7245.9390043462602604228.2242.5256.6400044622672625233.5247.7261.83.甲板开孔推荐尺寸:1750mm×(B+2504.3标记4.3.1型式表示方法斜梯的型式表示方法如下：CB/T81—2024防尘板(F)，不带防尘板缺省梯架L50X50，顶部扶手Ø34（A）,梯架L50X50，顶部扶手Ø42.4（B）梯架L63X63，顶部扶手Ø34（C）,梯架L63X63，顶部扶手Ø42.4（D）斜度(º)×宽度（mm）×层高（mm）4.3.2标记示例斜度为55º、宽度为600mm、层高为3100mm,梯架L50X50,顶部扶手Ø34,不带防尘板,钢质斜梯标记为：斜梯CB/T81-××××55º×600×3100A斜度为60º、宽度为700mm、层高为2500mm,梯架L50X50,顶部扶手Ø42.4,带防尘板,钢质斜梯标记为：斜梯CB/T81-××××60º×700×2500BF斜度为45º、宽度为1000mm、层高为2300mm,梯架L63X63,顶部扶手Ø42.4,不带防尘板,钢质斜梯标记为：斜梯CB/T81-××××45º×1000×2300D5要求5.1材料5.1.1斜梯的主要零部件材料见表6。表6斜梯主要零部件的材料单位为毫米零件名称材料名称牌号标准号梯架角钢Q235BGB/T700-2006角钢踏步花纹钢板Q235B防尘板热轧薄钢板Q235BGB/T3274-2017扶手钢管(顶部扶手/支撑)Q235BGB/T3075-2011钢管(顶部扶手/支撑)Q235B圆钢(中部扶手)Q235BGB/T700-2006安装板碳素结构钢Q235B框架板碳素结构钢Q235B连接板扁钢Q235B垫板碳素结构钢Q235B肘板碳素结构钢Q235B六角螺母不锈钢06Cr17Ni12Mo2GB/T6170-2015六角螺栓不锈钢06Cr17Ni12Mo2GB/T5783-2016平垫圈不锈钢06Cr17Ni12Mo2GB/T97.1-20025.1.2材料检验合格后方可投产。CB/T81－20245.2制造公差斜梯制造要求符合以下要求：a)斜梯本体尺寸偏差：斜梯宽度的公差为0～+5mm；踏步间距的公差为±2mm；踏步平行度的公差为±2mm，踏步倾斜度公差为±1°;斜梯长度的公差为±10mm；b)斜梯扶手尺寸偏差：扶手高度公差为0～+3mm，扶手垂直度公差为±5mm。5.3外观斜梯外观满足以下要求：a)斜梯装配后不应有斜歪、扭曲等缺陷，装好后踏步应水平；b)梯架、踏步、扶手均要求满焊，无影响强度的缺陷；c)斜梯表面应无毛刺，无裂缝，锐边应倒圆角，对接焊缝应打磨光顺，凸起高度不大于3mm。焊缝应无夹渣、气孔、焊瘤等缺陷。5.4防锈斜梯表面除锈应符合GB/T8923.1-2011中规定的Sa2级或St2级的要求，并涂防锈底漆两道，每道干膜厚50µm，总干膜厚不低于100µm。6试验方