【正文】
1 ( 0 .5 2 7 1 ) 6 2 .6 1kiD P y k N? ? ? ? ? ?? 14 ( 6)一臺(tái)吊車時(shí)橫向荷載作用下牛腿的最大反力: 1 , m a x 2 .1 4 ( 0 .5 2 7 1 ) 3 .2 7k k iT H y k N? ? ? ? ? ?? . 吊車對(duì)結(jié)構(gòu)最不利荷載計(jì)算 ① 最大輪壓作用于 A 柱列 A 柱列所受豎向力及彎矩 , m a x 2 4 0 .4 9kkF P k N?? , 240 .49 5 180 .37kkM F e k N m? ? ? ? ? ? B 柱列所受豎向力及彎矩 , m in 1 0 7 .1 7kkF D k N?? , 107 .17 5 80. 38kkM F e k N m? ? ? ? ? ? ② 最大輪壓作用于 B 柱列 A 柱列所受豎向力 及彎矩 , m in 1 0 7 .1 7kkF P k N?? , 107 .17 5 80. 38kkM F e k N m? ? ? ? ? ? B 柱列所受豎向力及彎矩 , m a x 2 4 0 .4 9kkF P k N?? , 240 .49 5 180 .37kkM F e k N m? ? ? ? ? ? ③ 橫向荷載作用于 AB 跨 T kN?? 由于門式剛架結(jié)構(gòu)的自重較輕,地震作用產(chǎn)生的荷載效應(yīng)一般較小。 = = 與 的較小者為 =,取 Z=,且 Z4%Lmin= 因此,取 Z=, 2Z=; C~D 軸:最小水平尺寸 Lmin=,廠房高度 H=,則 = =。 按《規(guī)程》計(jì)算房屋邊緣帶寬度 Z, Z 為計(jì)算維護(hù)結(jié)構(gòu)構(gòu)件時(shí)的房屋邊緣帶寬度。 垂直于建筑物表面的風(fēng)荷載標(biāo)準(zhǔn)值 wk的計(jì)算公式為: wk=μ sμ z w0 式中 w0為基本風(fēng)壓,但需按現(xiàn)行國(guó)家標(biāo)準(zhǔn)《荷載規(guī)范》的規(guī)定值乘以系數(shù) 采用;μ s 為體型系數(shù),《規(guī)程》中給出了不同構(gòu)件計(jì)算風(fēng)荷載標(biāo)準(zhǔn)值時(shí)的體型系數(shù),本設(shè)計(jì)廠房符合條件:屋面坡度α≤ 10186。 11. 荷載計(jì)算 不考慮地震作用時(shí),作用在屋頂上的荷載包括結(jié)構(gòu)自重、屋面永久荷載、屋面活荷載及風(fēng)荷載,各荷載的標(biāo)準(zhǔn)值分別如下(結(jié)構(gòu)自重由程序自動(dòng)計(jì)算,并參與相應(yīng)的組合): 屋面永久荷載 Gk : (屋面板 ,隔熱層 ,檁條,屋面支撐 ,設(shè)備管線 ); 屋面活荷載 Qik : kN/m2 ; 基本風(fēng)壓 w0 : kN/m2 ; 作用在剛架斜梁上的永久荷載 DL(不包含自重)為: 標(biāo)準(zhǔn)值 1cos? 6=設(shè)計(jì)值 = kN/m 依據(jù)荷載規(guī)范,不考慮雪荷載則作用在剛架斜梁上的活荷載 LL 為: 標(biāo)準(zhǔn)值 6= 10 設(shè)計(jì)值 =端跨剛架的受載面積為中跨的 1/2,因此在整體分析時(shí),作用在端跨的實(shí)際荷載為中跨的一半。 根據(jù)墻板的板型和規(guī)格,墻梁的布置沿高度方向間距每隔 ,根據(jù)《冷彎薄壁型鋼結(jié)構(gòu)技術(shù)規(guī)范》 GB500182021 中 之規(guī)定,本廠房跨度 6m,應(yīng)在跨中位置設(shè)置一道拉條,拉條承擔(dān)的墻體自重通過(guò)斜拉條傳至承重柱和墻架柱,且應(yīng)每隔 5 道拉條設(shè)置一對(duì)斜拉條,以分段傳遞墻體自重,拉條為Φ 10 圓鋼。因此在廠房?jī)啥说谝粋€(gè)柱間支 9 撐設(shè)置橫向水平支撐。當(dāng)有起重量不小于 5t 的吊車時(shí),柱間宜采用型鋼支撐。兩端設(shè)上柱支撐,中間設(shè)上下柱支撐。根據(jù)《門式剛架輕型房屋結(jié)構(gòu)技術(shù)規(guī)程》 CECS102: 2021 中 和 之規(guī)定,應(yīng)在檁條三分點(diǎn)處設(shè)置一道拉條,拉條采用 Φ 10 圓鋼,圓鋼拉條設(shè)在距檁條上翼緣 1/3 腹板高度范圍內(nèi),屋脊拉條為剛性。 根據(jù)屋面壓型鋼板的規(guī)格,檁條沿跨度方向每隔 。具體做法如下圖所示: 圖 散水構(gòu)造示意圖 9. 門窗明細(xì)表 表 91 門窗明細(xì)表 門窗編號(hào) 尺寸 數(shù)量 高度( mm) 寬度( mm) M— 1 3900 3300 8 C— 1 2100 27600 4 C— 2 2100 45600 2 8 167。具體構(gòu)造如下圖。 圖 縱墻與山墻角部節(jié)點(diǎn)示意圖 本廠房屋面采用壓型鋼板有檁體系,即在鋼架斜梁上放置 C 型冷軋薄壁鋼檁條,再鋪設(shè)壓型鋼板屋面。壓型鋼板外墻構(gòu)造力求簡(jiǎn)單,施工方便,與墻梁連接可靠。 8. 廠房的構(gòu)造設(shè)計(jì) 本廠房外墻下部為 900mm 高 240mm 厚的磚砌墻體,上部為壓型鋼板,以避免壓型鋼板直接著地而產(chǎn)生銹蝕。 立面上,采用底部為 1100mm 高的磚砌體,表面以水泥砂漿抹面。 6. 廠房屋面排水設(shè)計(jì) 采用檐溝外排水,壓型鋼屋面及檐溝構(gòu)造做法如圖 61 所示。 綜上,滿足采光要求。本 廠房擬采用混合采光,雙側(cè)采光 +頂部采光。 4 3. 室內(nèi)外高差的確定 為考慮到運(yùn)輸工具進(jìn)出廠房的便利及防止雨水侵入室內(nèi),取廠房室內(nèi)外高差為200mm。斜梁高度初步取 600mm。查閱相關(guān)規(guī)范可知吊車梁高度可取 450mm,要求吊車頂面至斜梁與柱相交處最低點(diǎn)間的安全凈空尺寸? 300mm,本廠房取 400mm。抗風(fēng)柱距分別取 7m 和 9m 廠房出入口尺寸取 3900 ㎜ 3300 ㎜。參照工程應(yīng)用實(shí)例,廠房平面布置為雙跨矩形平面。 Abstact: The project situated in the suburbs of guangzhou province. It is 120 meters in length and a 24meter span seted two cranes and each span has a intercalated bed. The project designed strictly ply with the relavant stipulations of the “ CODE FOR DESIGN OF STEEL STRUCTURES (GB500172021)” and “ TECHNICAL SPECIFICATION FOR STEEL STRUCTURE OF LIGHTWEIGHT BUILDINGS WITH GABLED FRAMES (CECS 102:2021)” , and some the scale of the consideration design engineering and across a principle for span and use, according as applying, economy, under the possible term attention beautifully, Connecting method, structure type and material of each part which consist of a 2 lightweight steel villa are analysed, then choose the construction form that use single layer a type steel. The beam, pillar node is a light steel construction frame system that rigid and copular a type steel a ware for having construction Simple, just degree goodly, suffering dint reasonablely, using space bigly and starting construction convenience etc. characteristics, and easy to industrialization, mercializing produce, thinking with light maintenance material the kit the already extensive applying in the building construction inside, this design is to proceeds the building, construction design to the structural and actual engineering in light steel and calculation. The tractate includes the internal force analyzes and bines, based on these analyse, we can choose the section of beam and , checking putations of stability calculation of the plane structure. The steel beam and column employs Q235 carbon structural steel. Connection bolts are high strenth bolt of friction type with behavoure grade . Common bolts are rough type made by steel. Rod for mannual welding usually adopts E43. rigid connection apply to the column leg and the connection of column and beam adopts hinged connection. The metope and roofage adopts profiled steel sheet. Otherwise,it is analyzed that the forced state of the bracing system for a steel factor building under wind load,and the design of a bracing truss for a building with larger some errors in the design of brace,tention rod,tention rod joints. 關(guān)鍵詞: 輕型鋼結(jié)構(gòu) 門式鋼架 內(nèi)力分析 壓型鋼板 節(jié)點(diǎn) Keywords: lightweight steel structures gabled frame the internal force analyzes profiled steel sheet joint 3 167。梁、柱節(jié)點(diǎn)為剛性連接的門式鋼架具有結(jié)構(gòu)簡(jiǎn)潔、剛度良好、受力合理、使用空間大及施工方便等特點(diǎn),便于工業(yè)化,商品化的制品生產(chǎn),與輕型維護(hù)材料想配套的輕型鋼結(jié)構(gòu)框架體系已廣泛應(yīng)用于建筑結(jié)構(gòu)中,本設(shè)計(jì)就是對(duì)輕型鋼結(jié)構(gòu)的實(shí)際工程進(jìn)行建筑、結(jié)構(gòu)設(shè)計(jì)與計(jì)算。建筑設(shè)計(jì)部分 ................................................................... 3 1. 平面設(shè)計(jì) .......................................................................... 3 2. 剖面設(shè)計(jì) .......................................................................... 3 3. 室內(nèi)外高差的確定 ........................................................... 4 4. 廠房天然采光設(shè)計(jì) ........................................................... 4