DB3401-T 254-202《裝配整體式混凝土結(jié)構(gòu)結(jié)合面技術(shù)規(guī)程》

ICS91.080.40CCSP25ICS91.080.40CCSP25安徽省合肥市地方標(biāo)準(zhǔn)DB3401/T254—2022裝配整體式混凝土結(jié)構(gòu)結(jié)合面技術(shù)規(guī)程Technicalspecificationforjointsurfaceofmonolithicprecastconcretestructure20222022110320221103合肥市市場(chǎng)監(jiān)督管理局發(fā)布前 言本文件按照GB/T1.1—2020《標(biāo)準(zhǔn)化工作導(dǎo)則第1部分：標(biāo)準(zhǔn)化文件的結(jié)構(gòu)和起草規(guī)則》的規(guī)定起草。本文件由合肥市城鄉(xiāng)建設(shè)局歸口。裝配整體式混凝土結(jié)構(gòu)結(jié)合面技術(shù)規(guī)程范圍本文件適用于新建、擴(kuò)建的裝配式民用建筑中預(yù)制混凝土構(gòu)件結(jié)合面。（GB50010混凝土結(jié)構(gòu)設(shè)計(jì)規(guī)范JGJ355鋼筋套筒灌漿連接應(yīng)用技術(shù)規(guī)程3術(shù)語(yǔ)和定義下列術(shù)語(yǔ)和定義適用于本文件。3.1裝配整體式混凝土結(jié)構(gòu)monolithicprecastconcretestructure[來(lái)源：JGJ1-2014,2.1.3]3.2預(yù)制混凝土構(gòu)件precastconcretecomponentJGJ355鋼筋套筒灌漿連接應(yīng)用技術(shù)規(guī)程3術(shù)語(yǔ)和定義下列術(shù)語(yǔ)和定義適用于本文件。3.1裝配整體式混凝土結(jié)構(gòu)monolithicprecastconcretestructure[來(lái)源：JGJ1-2014,2.1.3]3.2預(yù)制混凝土構(gòu)件precastconcretecomponentGB/T51231-2016,2.1.23]3.3結(jié)合面jointsurface后澆混凝土、水泥基灌漿料或坐漿料與預(yù)制混凝土構(gòu)件之間的連接面。3.4混凝土粗糙面concreteroughsurfaceJGJ1-2014,2.1.9]3.5鍵槽shearkey預(yù)制混凝土構(gòu)件結(jié)合面上與后澆混凝土相匹配以傳遞剪力的槽。3.6模具成型混凝土粗糙面moldformingroughsurface采用粗糙面模具在預(yù)制混凝土構(gòu)件表面形成的混凝土粗糙面。簡(jiǎn)稱模具成型粗糙面。3.7混凝土粗糙面模具roughsurfacemold在預(yù)制混凝土構(gòu)件模具擋邊上設(shè)置的用于形成混凝土粗糙面的模具。簡(jiǎn)稱粗糙面模具。3.8粗糙面凹凸深度relativedepthofroughsurface一定區(qū)域內(nèi)粗糙面最高點(diǎn)與最低點(diǎn)的高度差。凝土結(jié)合面應(yīng)設(shè)置粗糙面；預(yù)制梁端面應(yīng)設(shè)置鍵槽且宜設(shè)置粗糙面；當(dāng)梁端進(jìn)入支座尺寸不20mm80粗糙面凹凸深度應(yīng)不小于4mm，預(yù)制梁端、預(yù)制柱端、預(yù)制剪力墻端的粗糙面凹凸深度應(yīng)不小于6mm。AA行專門的性能測(cè)試，并宜符合下列規(guī)定。400mm240%；7mm10mm~20mm；15mm~25mm；JGJ1材料混凝土GB500105mm~20mmII130mm~150mm；外加劑GB50119注：5.3.2粗糙面模具可使用聚氯乙烯膜、聚丙烯板、金屬模具等。6設(shè)計(jì)計(jì)算GB5.3.2粗糙面模具可使用聚氯乙烯膜、聚丙烯板、金屬模具等。6設(shè)計(jì)計(jì)算GB50010·············································································(1) ········································································(2)···········································································(3)式中：γo—結(jié)構(gòu)重要性系數(shù)，安全等級(jí)為一級(jí)時(shí)應(yīng)不小于1.1，安全等級(jí)為二級(jí)時(shí)應(yīng)不小于1.0；Vjd—持久設(shè)計(jì)狀況下接縫剪力設(shè)計(jì)值；Vu—持久設(shè)計(jì)狀況下梁端、柱端、剪力墻底部接縫受剪承載力設(shè)計(jì)值；VjdE—地震設(shè)計(jì)狀況下接縫剪力設(shè)計(jì)值；VuE—地震設(shè)計(jì)狀況下梁端、柱端、剪力墻底部接縫受剪承載力設(shè)計(jì)值；γRE—承載力抗震調(diào)整系數(shù)；ηj—接縫受剪承載力增大系數(shù)，抗震等級(jí)為一、二級(jí)取1.2，三、四級(jí)取1.1；Vmua—被連接構(gòu)件端部按實(shí)配鋼筋面積計(jì)算的斜截面受剪承載力設(shè)計(jì)值。 ·································································(4)式中：VuE—地震設(shè)計(jì)狀況下接縫受剪承載力設(shè)計(jì)值；fy—垂直穿過(guò)結(jié)合面的鋼筋抗拉強(qiáng)度設(shè)計(jì)值；Asd—垂直穿過(guò)結(jié)合面抗剪鋼筋的面積；N—與剪力設(shè)計(jì)值V相應(yīng)的垂直于結(jié)合面的軸向力設(shè)計(jì)值，壓力時(shí)取正，拉力時(shí)取負(fù)。JGJ1 ···························································(5) ·····················································(6)式中：VuE—地震設(shè)計(jì)狀況下接縫受剪承載力設(shè)計(jì)值；N—與剪力設(shè)計(jì)值V相應(yīng)的垂直于結(jié)合面的軸向力設(shè)計(jì)值，取絕對(duì)值進(jìn)行計(jì)算；Asd—fc—GB50010凝劑。注：當(dāng)采用模具成型粗糙面時(shí)，粗糙面模具固定于構(gòu)件模具擋邊，脫模劑應(yīng)涂刷于粗糙面模具表面。人工或機(jī)械拉毛。GBGB50666JGJ35520mm80注：高度達(dá)不到要求的均為不合格凸點(diǎn)。附錄A（規(guī)范性）A.1A.131.18單位為毫米31.1