【正文】
B跨BC跨AB跨BC跨AB跨BC跨A柱B柱VA=VBVB=VCVA=VBVB=VCVAVBVB=VC5040續(xù)表302010第9章 橫向框架內(nèi)力組合本設(shè)計(jì)中考慮了四種內(nèi)力組合:+(SQK+SWK)+SQK+ + (91)按式(91)中的四種組合計(jì)算梁內(nèi)力,各層梁內(nèi)力組合見(jiàn)表91,表中SGK、SQK兩列中的梁彎矩M為經(jīng)過(guò)調(diào)幅后的彎矩()。計(jì)算柱底軸力還需要考慮柱的自重。由于結(jié)構(gòu)和荷載對(duì)稱,故計(jì)算時(shí)可用半框架。見(jiàn)表81。表73 各層柱端彎矩及剪力計(jì)算層次hi/mVi/KNDij/N/mm邊柱Di1Vi1yMi1bMi1u5570641284245706412842357064128422570641284214734411008層次hi/mVi/KNDij/N/mm中柱Di2Vi2yMi2bMi2u5570641569045706415690357064156902570641569014734412664表74 梁端彎矩、剪力及柱軸力計(jì)算層次邊跨梁軸力NMbl/kNmMbr/kNmL/mVb/kN邊柱N/kN中柱N/kN5續(xù)表4321層次走道梁軸力NMbl/kNmMbr/kNmL/mVb/kN邊柱N/kN中柱N/kN54321 風(fēng)載作用下框架剪力及軸力圖圖73 風(fēng)荷載作用下框架彎矩圖第8章 豎向荷載作用下框架內(nèi)力計(jì)算?、圯S線橫向框架進(jìn)行計(jì)算,傳給框架的荷載如陰影所示,見(jiàn)圖81。圖71 風(fēng)荷載作用下結(jié)構(gòu)計(jì)算簡(jiǎn)圖表72 風(fēng)荷載作用下各層框架柱D值及剪力值層數(shù)層剪力kN邊柱D值N/mm中柱D值N/mmN/mm每層邊柱剪力kN每層中柱剪力kN51284215690570644128421569057064312842156905706421284215690540641110081266447344,根據(jù)我國(guó)現(xiàn)行規(guī)范規(guī)定,主要限制層間位移:對(duì)于不高于150m的框架結(jié)構(gòu),滿足要求??山撇捎谜裥陀?jì)算點(diǎn)距室外地面高度Z與房屋H的比值,為脈動(dòng)系數(shù),可按式計(jì)算;U為脈動(dòng)影響系數(shù),為風(fēng)壓高度變化系數(shù)。為風(fēng)荷載體型系數(shù)。表63 中框架柱側(cè)移剛度D值層次邊柱:(14根)中柱:(14根)αcDi1αcDi22~512842156903994481層1100812664331408層次邊柱:(4根) 中柱:(4根)αcDi1αcDi22~51097013818991521層99961156986260表64 邊框架柱側(cè)移剛度D值表65 樓梯間框架柱側(cè)移剛度D值層次D4,D5,D7,D8C4,C5,C7,C8αcDi1αcDi22~510970145561021041層99961198387916 注:柱的側(cè)移剛度D=αc12ic/h2將上述不同情況下同層框架柱側(cè)移剛度相加,即得框架各層間側(cè)移剛度,見(jiàn)下66表。據(jù)上述計(jì)算結(jié)果并綜合考慮其他因素,本設(shè)計(jì)柱截面尺寸取值如下:1層: 550mm550mm2~5層: 450mm450mm頂層柱的形心作為框架柱的軸線;梁軸線取至板底,2~5層柱高度為層高,;底層柱高從基礎(chǔ)地面至一層板底。因柱選用C30混凝土,故fc=。 表41 各層梁截面尺寸及混凝土強(qiáng)度等級(jí) 單位:(mmmm)層次混凝土等級(jí)邊跨梁(bh)中跨梁(bh)2~5C303006003004001層C30300600300400柱截面尺寸可根據(jù)柱子的軸壓比限值確定[10]。窗為鋁合金窗。考慮到該建筑為北方建筑,冬季比較寒冷,凍土層深兩米左右。各層截面尺寸不同且形心線不重合時(shí),取頂層柱的形心線作為柱子的軸線[9]。柱的截面尺寸按軸壓比限值公式進(jìn)行估算,確定一層柱截面尺寸為550mm550mm,二層~五層柱截面尺寸為450mm450mm。第3章 結(jié)構(gòu)設(shè)計(jì)說(shuō)明本設(shè)計(jì)采用框架承重體系,根據(jù)樓蓋的平面布置及豎向荷載的傳遞途徑,框架的承重方案為橫向、縱向,縱橫向框架承重三種方案[8]。,木構(gòu)件均應(yīng)經(jīng)過(guò)防腐處理。⑴塑鋼門窗框與墻體連接處構(gòu)造做法為用聚氨脂發(fā)泡塞縫,再用1:2水泥砂漿抹實(shí)。,應(yīng)用1:2水泥砂漿做護(hù)角,每側(cè)寬度不小于50mm。本工程設(shè)計(jì)采用的平行雙跑樓梯,樓段踏步bh=150mm300mm,滿足公寓建筑樓梯踏步b≥280mm,h≤160mm的規(guī)定[6]。另外對(duì)主要出入口進(jìn)行了適當(dāng)?shù)乃囆g(shù)處理,使整個(gè)建筑的體形統(tǒng)一而富有變化,并顯得更為生動(dòng),活潑。以此來(lái)滿足采光要求。踏步數(shù):第一跑梯段踏步數(shù)為1800/150=12;第二跑梯段踏步數(shù)是1800/150=12。根據(jù)平臺(tái)寬度大于等于梯段寬度的規(guī)定,平臺(tái)寬度亦取2335mm。樓梯設(shè)計(jì)在門廳附近,體現(xiàn)了導(dǎo)向明確,疏散快捷方便的理念??紤]其采光要求在走廊端部開(kāi)窗。在建筑內(nèi)部,衛(wèi)生間和配電室均布置在北面,考慮到其通風(fēng)、采光,排氣等要求,房間均靠外墻設(shè)置。下面從具體幾個(gè)方面進(jìn)行說(shuō)明本工程的建筑設(shè)計(jì)。結(jié)構(gòu)部分要求結(jié)構(gòu)的布置及柱距的確定應(yīng)滿足使用功能,柱網(wǎng)尺寸符合模數(shù)。 結(jié)構(gòu)部分包括結(jié)構(gòu)類型的選擇,包括結(jié)構(gòu)的布置及柱網(wǎng)尺寸;估算結(jié)構(gòu)的梁、板、柱的截面尺寸;豎向荷載作用下框架內(nèi)力計(jì)算、水平荷載作用下框架側(cè)移及內(nèi)力計(jì)算、框架內(nèi)力組合;框架梁、板,柱配筋計(jì)算;樓梯內(nèi)力及配筋計(jì)算及基礎(chǔ)設(shè)計(jì)。水質(zhì)對(duì)建筑物無(wú)腐蝕作用,冬季土壤冰凍深度為2m。本建筑按6度抗震設(shè)防,防火等級(jí)為二級(jí)?!娟P(guān)鍵詞】 框架結(jié)構(gòu)、建筑設(shè)計(jì)、結(jié)構(gòu)設(shè)計(jì)ABSTRACT This design for some 15 student apartment design., mainly includes the architectural design and the structural design two parts. This apartment high , the total floor space is 2866m2, the fireproof rank is two levels, the earthquake resistance fortification intensity is 6 design content including plane, vertical surface and section plane design.Structural design including frame design, ponent design and foundation design and so them, the frame uses the reinforced concrete crosswise frame loadbearing scheme of arrangement, the foundation uses under the reinforced concrete column the independent article carried on emphatically to 1 pin crosswise frame has matched the muscle had determined the frame layout and the assignment statistics obtain each kind of load, the function size, according to the D value law, the delamination and the base shearing force law isoelasticity analysis method putation obtains the structure endogenic force, and in this foundation, carries on the endogenic force bination according to the most disadvanta