【正文】 規(guī)范對(duì)梁筋過(guò)中節(jié)點(diǎn)的直徑；對(duì)梁柱縱筋錨固長(zhǎng)度；錨固方式都 有詳細(xì)的規(guī)定。同時(shí)對(duì)柱子的高寬比、剪跨比、截面最小高度、寬度做出了規(guī)定，以提高抗震性能。規(guī)范對(duì)軸壓比作出了限制，一般能保證在大偏壓的范圍內(nèi)。同時(shí)，還對(duì)梁的最小寬度、跨高比、高寬比做了規(guī)定。 ① 梁的構(gòu)造措施 梁塑性鉸截面的延性與很多因素有關(guān)，截面延性隨受拉鋼筋配筋率及屈服強(qiáng)度的提高而降低；隨受壓鋼筋配筋率和混凝土強(qiáng)度提高 而提高，隨截面寬度增大而增大；塑性鉸區(qū)的箍筋可以防止縱筋的壓屈、提高混凝土極限壓應(yīng)變、阻止斜裂縫的開展、抵抗剪力，充分發(fā)揮塑性鉸的變形和耗能能力；梁高跨比越小，剪切變形比例越大，易發(fā)生斜裂縫破壞，使延性降低。 （ 3） 構(gòu)造措施 構(gòu)造措施是梁、柱、剪力墻塑性鉸區(qū)要達(dá)到實(shí)際需要的塑性轉(zhuǎn)動(dòng)能力和耗能能力的保證。其取值的合理性有待于進(jìn)一步完善。梁柱節(jié)點(diǎn)的抗震受剪承載力由混凝土斜壓桿和水平箍筋兩部分受剪承載力組成，有關(guān)專家給出了相關(guān)公式。 （ 2） 抗剪公式 國(guó)內(nèi)外低周反復(fù)荷載作用下鋼筋混凝土連續(xù)梁及懸臂梁受剪承載力實(shí)驗(yàn)表明，混凝土剪壓區(qū)剪切強(qiáng)度的降低、斜裂縫間骨料咬合力及縱筋暗銷力的降低是梁受剪承載力降低的主要原因。一、二、三級(jí)框架柱和框支柱，剪力設(shè)計(jì)值 其中， 一級(jí)取 ，二級(jí)取 ，三級(jí)取 ，一級(jí)框架結(jié)構(gòu)及 9 度尚應(yīng)符合 。 強(qiáng)剪弱彎 “ 強(qiáng)剪弱彎 ” 是為了保證塑性鉸截面在達(dá)到預(yù)期非彈性變形之前不發(fā)生剪切破壞。同時(shí)， 7 度區(qū)很難出現(xiàn)正彎矩塑性鉸，對(duì)抵抗大震起到有利作用。對(duì)部分框支抗震墻結(jié)構(gòu)，一、二級(jí)框支柱的柱上端和底層柱下端，其組合彎矩設(shè)計(jì)值應(yīng)分別乘以增大系數(shù) 和 。 9 度及一級(jí)框架結(jié)構(gòu)尚應(yīng)符合 ， 根據(jù)實(shí)配鋼筋面積及材料強(qiáng)度標(biāo)準(zhǔn)值確定。結(jié)構(gòu)出現(xiàn)塑性鉸之后，同樣有上述原因的存在，而且結(jié)構(gòu)屈服后的非 彈性過(guò)程就是地震力進(jìn)一步增大的過(guò)程，柱彎矩隨地震力的增大而增大。 我們常見(jiàn)的 “ 強(qiáng)柱弱梁 ” 的調(diào)整措施就是要人為增大柱子的抗彎能力，誘導(dǎo)在梁端先出現(xiàn)塑性鉸。 “ 梁鉸機(jī)構(gòu) ” 和“ 梁柱鉸機(jī)構(gòu) ” 的梁先屈服，可使整個(gè)框架有較大的內(nèi)力重分布和能量消耗能力，極限層間位移大，塑性鉸數(shù)量多，不因個(gè)別塑性鉸失效而結(jié)構(gòu)整體失效。從以上三個(gè)方面保證使結(jié)構(gòu)具有必要的延性。它主要包括以下 內(nèi)容 ：建筑設(shè)計(jì)應(yīng)注意結(jié)構(gòu)的規(guī)則性；選擇合理的建筑結(jié)構(gòu)體系；抗側(cè)力結(jié)構(gòu)和構(gòu)件的延性設(shè)計(jì)。s. References. 框架結(jié)構(gòu)抗震設(shè)計(jì) 地震災(zāi)害具有突發(fā)性，至今可預(yù)報(bào)性很低，給人類 社會(huì) 造成的損失嚴(yán)重，是各類 自然 災(zāi)中最嚴(yán)重的災(zāi)害之一。s tonsillitis that the low earthquake designs strenuously, but consuming energy sex to second. The pressure ratio has made a norm to the axis restricting, can ensure that within big bias voltages range in general. Stirrup same get the strain arriving at big roles, restraining the longitudinal tendon, improving concrete pressure, deter the tilted rift from developing also to the denasality. Be to match tendon symmetrically like post, the person leads feeling bigger , as big , being deformed when the pillar knuckles under more even if the tendon matches tendon , the tensile finishes exceeding. As a result, the tendon minimum matches tendon rates, the stirrup encryption District length, maximal spacing, minimal diameter, maximal limb lead having made strict regulations out from when, and volume matches hoop to the pillar jumping. At the same time, aspect ratio , scissors to the pillar have stridden over a ratio , minimal altitude of cross section , width have done out regulation, to improve the antiknock function. ③ Node structure measure The node is anchoring beam column reinforced bar area, effect is very big to structure function. Be under swear to act on earthquake and the vertical stroke to load, area provides necessary constraint to node core when node core area cuts pressure low than slanting, keep the node fundamental shear ability under disadvantageous condition, make a beam column anchoring even if the tendon is reliable, match hoop rates to node core area maximal spacing of stirrup, minimal diameter, volume having done out regulation. The beam column is main node structure measure content even if tendon reliability in the node is anchoring. Have standardized to beam tendon being hit by the node diameter。 Strict strong weak post beam degree, the measure affecting corresponding structure, if put strict strong weak post beam into practice, ensure that the pillar does not appear than the plasticity hinge, corresponding axis pressure waiting for structure measure to should be a little loose right away except the bottom. Our country adopts the strong relative weak post beam”, delays a pillar going beyond the hinge time, therefore needing to adopt stricter structure measure. ① the beam structure measure beam plasticity hinge cross section senility and many factors match tendon rates and the rise knuckling under an intensity but reduce in connection with cross section tensile, with the reinforced bar being pulled。 Aspect adjusting a shear bearing the weight of two forces. 1) effect shearing force One, two, threelevel frame beam and antiknock wall middle stride over high ratio greater than pany beam, shearing force design value among them , first order choose , two stage choose , threelevel choose , first order framed structure and 9 Due Shan respond to coincidence. Coincidence one, two, three steps of frame post and frame pillar , shearing force being designed being worth taking among them, one step , taking , three steps of take , onelevel framed structure and 9 Due Shank two steps responding to. One, two, three steps of antiknock walls bottom reinforces location the shearing force designs that value is among them , first order takes , the two stage takes , gradethree takes , 9 Dud Shank respond to coincidence . The node core area seismic resistance the beam column node , one, two steps of antiknock grades are carried out is born the weight of force checking calculation by the scissors , should accord with antiknock structure measure about 3 step, correct 9 degree of fortify and onelevel antiknock grade framed structure