結(jié)構(gòu)力學(xué)課件一一

§13-6等效結(jié)點(diǎn)荷載{F}=[K]{}………………(1)結(jié)構(gòu)體系剛度方程：一、位移法基本方程k11

1+k12

2+

··········+k1n

n+F1P=0

k21

1+k22

2

+··········+k2n

n+F2P=0

··································kn1

1+kn2

2+

··········+knn

n+FnP=0

[K]{}+{FP}={0}…………...………(2){F}+{FP}={0}…………..………(3)將(1)式代入(2)式：表示結(jié)點(diǎn)位移{

}和結(jié)點(diǎn)力{F}之間的關(guān)系，反映了結(jié)構(gòu)的剛度性質(zhì)，而不涉及原結(jié)構(gòu)上作用的實(shí)際荷載，并不是原結(jié)構(gòu)的位移法基本方程?；倔w系在荷載單獨(dú)作用下產(chǎn)生的結(jié)點(diǎn)約束力?；倔w系在結(jié)點(diǎn)位移單獨(dú)作用下產(chǎn)生的結(jié)點(diǎn)約束力。1二郵、很等濕效套結(jié)步點(diǎn)窩荷爪載楚的基概售念結(jié)槽點(diǎn)扇結(jié)色束公力觸—工—及{FP}結(jié)導(dǎo)點(diǎn)途結(jié)筐束倡力滅—耐—盛{FP}等切效覆結(jié)川點(diǎn)杰荷矮載冊(cè){P}原拐荷族載顯褲然蠟{P}愧=女–襪{FP}損…路…死…解治決暖了必計(jì)草算等撈效劈燕結(jié)發(fā)點(diǎn)耽荷逝載偵的些問(wèn)呆題等缺效里原夠則是批兩奸種互荷翅載耳在默基戚本雷體寒系紡中虧產(chǎn)甲生停相穴同膛的護(hù)結(jié)齒點(diǎn)浙約釣束些力[K]待{

破}=貼{F}{FP}+=2三話、睜按塔單定元予集刷成劈燕法焦求辭整煤體劫結(jié)晌構(gòu)辮的赴等柔效給結(jié)伴點(diǎn)阿荷請(qǐng)載果{P}(1捉)躍局標(biāo)部戶座忌標(biāo)裹單醉元至的曬等杰效芝結(jié)慶點(diǎn)胳荷喪載鍛{P}exee{P}ee(石2淋)虧整題體物座訴標(biāo)演單呼元胃的糖等蕉效項(xiàng)結(jié)女點(diǎn)毀荷踩載險(xiǎn){P}eee(參3胞)寺結(jié)閑構(gòu)絞的分等貸效病結(jié)孕點(diǎn)捏荷淺載割{P}xy31112xy12348kN4.8kN/mABC5m2.5m2.5m單且元貿(mào)1吧:單抵元艙2平:121禾21悼0-1翼0+接4+覆0-梅5122224[K]求騎單長(zhǎng)元省常訂數(shù){

攏}[T]{P}原把始某數(shù)體據(jù)喘、朽局云部收碼黨、狐總抽碼解藝方供程災(zāi)[K]馳{

持}懼=善{P}求圈出匪結(jié)梅點(diǎn)支位示移{

郵}開隊(duì)始單元?jiǎng)偠染仃噆e單元固端力e結(jié)戶束§蘭1登3碰-疾7龍計(jì)鋼算宿步鄉(xiāng)豐驟特和亦算呼例[K]{}={F}{FP}+=程序設(shè)計(jì)框圖求桿端力eeee5例鐘.醒求駱圖裹示梳剛起架仿的誰(shuí)內(nèi)緒力波。墳設(shè)撥各揮桿憤為目矩鴿形銅截甲面般，輩橫區(qū)梁b2×h2=霞0關(guān).弱5兩m哥×墳1柱.歲2何6梢m愿，立戀柱b1×h1=夸0汁.臘5米m拼×宅1厲m前。（齡1虎）鼠原壩始秧數(shù)良據(jù)趨、遵局畫部胃碼堅(jiān)、擺總蘭碼注（樣設(shè)E=糕1囑）12m6mABCDq=1kN/mABCD123xy134526{0辯}{0跨}柱梁6ee7（駛2波）瓶形步成浮局階部言座惹標(biāo)浮系增中煎的障單摸元巾剛逝度言矩爛陣ke單點(diǎn)元絲式1訂和排3=1租0-篩3×=1叫0-糾3×單竊元亦2（懲3踐）搬計(jì)墨算院整爬體等座太標(biāo)娘系碰中們的房誠(chéng)單暈元眉剛慈度份矩郊陣e[k][k]=[T]T

ke[T]e2[k]–1[k]=–3[k]–8單嚴(yán)元寶1稠和揚(yáng)3的賺座傾標(biāo)己轉(zhuǎn)竿換矩率陣濾（

野=錦9砍00）1[k]==10-3×[k]=[T]T

k1[T]3單念元羽2（

冶=陣0棉°富）2[k]k2==10-3×9(4算)沫用翅單滅元甲集端成扇法仗形濟(jì)成四整蔬體腎剛瘡度疤矩急陣疫[K]ABCD123xy134526{0}{0}2131你0（5號(hào)）山求售等維效儉結(jié)刃點(diǎn)謊荷嗽載奸{P}12m6mABCDq=1kN/mABCD123xy134526{0}{0}1單碰元僵固曠端活約已束靠力單踢元功1烤（

抹=及9挑0漢°置）111按堡單匹元件定綁位墻向塑量11跟1（6蕩）洞解弄基弟本末方腹程求述得護(hù)結(jié)斑點(diǎn)楚位谷移通:（7侵）填求淺各罰單師元森桿榮端烈力eeeee111111單元1：先求{F}然后求①①1屠21111=1訴0-撓3×1123同吉樣渣可喘得揮出爪：1皺3（8昂）講繪血制領(lǐng)內(nèi)趨力墓圖12312eABCD8服.紀(jì)4障92座.毯0坑93妨.趕0繪44茅.喜3宋8M圖賓(k艇N美·糠m偵)4公.其7牌61勤.副2丘40劣.忽4著31虎.郊2影4Q圖遙(k破N)N圖辭(k道N)0老.這4熄30血.懼4墊31絲式.渡2原41么4k3k2k1§1特3渴-列8久忽安略寸軸誤向榴變潑形局時(shí)弱矩菜形較剛條架尊的束整灶體濤分茄析123ABDxy000102103C1C2104000123單說(shuō)元期定豆位植向?qū)W量1234561234561021031021031234561234561234561234561020001020001040001040001環(huán)51234[K]=12340000000000000000k3k2k11234561234561021031021031234561234561234561234561020001020001040001040001始6§翅1藥3裕-榴9釋桁繳架棒及回組尋合晚結(jié)仆構(gòu)合的步整羊體來(lái)分慚析一匯、臉桁坡架eee12

exyX1Y1X2Y2eeee1漸7llPEA=c12345ABCDxy12345678例售：達(dá)試怕用堆后秩處缺理色法摸計(jì)紫算煮圖只示誓桁容架漫各察桿叛內(nèi)群力桿，往設(shè)持各桶桿E貍A為由常攻數(shù)罪。（1膀）纖單盜元怒和敗結(jié)男點(diǎn)租編款碼貓，真準(zhǔn)變備知基斬本歡數(shù)瞇據(jù)踢。（2猛）遺建旨立鵝結(jié)希點(diǎn)全位約移要向體量是和說(shuō)結(jié)仆點(diǎn)搬力殿向衡量回：{

省}呀=嫩{

1

2

3

4

5

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7

8}T{P}瓦=論{F1F2F3F40P0備0橋}T（3船）降建要立罰整棍體勢(shì)座峽標(biāo)湖系爪單治剛e[k]對(duì)稱對(duì)稱12565678對(duì)稱56781256347834781詳812345ABCD12345678（3份）麻建虧立隊(duì)整詳體同座纏標(biāo)洪系憲單管剛e[k]對(duì)稱12565678對(duì)稱56781256對(duì)稱34783478對(duì)稱3456345612781278對(duì)稱1