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全国2003年4月高等教育自学考试结构力学(一)试题课程代码：02393一、单项选择题(本大题共10小题，每小题2分，共20分)在每小题列出的四个备选项中只有一个是符合题目要求的。
请将其代码填写在题后的括号内。
错选、多选或未选均无分。
1.图示体系是( )A.无多余约束的几何不变体系B.有多余约束的几何不变体系C.几何常变体系D.几何瞬变体系2.欲使图示平面体系成为几何不变体系，需要添加链杆(包括支座链杆)的最少数目是( )A.2B.3C.4D.53.图示桁架，零杆的数目(不包括支座链杆)是( )A.2B.3C.4D.54.图示刚架的超静定次数为( )A.10B.12C.15D.185.图示对称结构，作用反对称荷载，沿对称轴截面C截开，暴露出三对内力，可以判断( )A.M c=0,Q c=0,N c=0B.M c≠0,Q c=0,N c=0C.M c=0,Q c≠0,N c=0D.M c=0,Q c=0,N c≠06.图示结构，不计轴向变形，EI=常数，杆端弯矩M AB 的数值为( ) A.0B.3PL C.2PLD.PL7.图示结构，EI=常数，不计轴向变形，用位移法求解时，最少的基本未知量数是( ) A.2 B.3 C.4 D.58.图示结构由A 端转角LA ∆ϕ2=和B 端线位移△产生的杆端弯矩M AB (以对杆端顺时针转为正)为( )A.-∆2L EI 6B.0C.∆2L EL 3D.∆2LEI 6 9.用力矩分配法计算图示刚架时，分配系数μ1A 为( ) A.0B.61 C.41 D.3110.图示结构截面B 的弯矩(以对杆端顺时针转为正)等于( )A.-21qa 2 B.- 41qa 2C. 41qa 2D.21qa 2 二、填空题(本大题共8小题，每题2分，共16分)11.在分析体系的几何组成时，增加或拆去二元体，原体系的_____性质不变。
12.图示三铰拱，拱轴线方程为y=2Lf4x(L-x)，在均布荷载q 作用下截面D 的弯矩为_____。
攀 枝 花 学 院 期 末 考 试 试 卷课 程 名 称（结构力学 ）2004 ——2005学年度第 二 学期一、单项选择：（每题3分，共12分）1、联结三个点的复链杆，相当于（ ）约束。
A 、3个 B 、4个 C 、5个 D 、2、题一— 2图示三铰拱，BC 半拱中K 点的弯矩为（ ）A 、8⋅kN mB 、15 ⋅kN mC 、20⋅kN mD 、30⋅kN m3、校核超静定结构的最后弯矩图正确否，要从（ ）方面进行。
A 、静力平衡条件 B 、变形条件C 、静力平衡条件或变形条件D 、静力平衡条件和变形条件 4、塑性铰所在截面的材料处于（ ） A 、线弹性阶段; B 、弹性阶段; C 、弹塑性阶段; D 、塑性阶段。
二、填空：（每空2，共16分）1、题二—1图示桁架中,可以直接判断出该桁架的零杆有:四根杆，采用 (截面法、结点法)以求出a 杆的轴力。
题二—1图 题二—2图2、题二—2图示体系是 体系。
可以利用 和 规则对其进行几何组成分析。
3、题二—2图是某静定结构受载荷作用的弯矩图。
AC V = kN 。
（3）若要求结构A 支座的水平位移，可在A 支座上虚假一个 （水平单位力、竖向单位力、单位力偶）。
2m三、计算题（共72分）1、求题三—1图所示连续梁的极限荷载。
（8分）(a)题三—1图题三—2图2、求题三—2图所示排架水平振动的自振频率，不计横梁的变形。
（7分）3、试求题三—3图所示简支梁在移动荷载作用下M C max、V C max。
（10分）435kN题三—3图4、利用力矩分配法计算题三—4图示连续梁，每个结点分配传递两次，绘制最后弯矩图。
（保留小数两位）（15分）题三—4图题三—5图5、采用力法，试：（1）选取并作出题三—5图所示超静定结构的基本结构。
（2）列出力法方程。
（3）画出各单位基本未知力、荷载分别单独作用于基本结构上的弯矩图。
（4）求力法方程中的系数和自由项。
（16分）。
We will continue to impr ove the com pany's i nternal control sy stem, and steady improveme nt in a bility to ma nage a nd control, optimize business pr oce sses, to e nsure smooth proce sse s, responsi bilities i n pl ace ; to furt her strengt hen internal control s, play a control post i ndepe nde nt over sight role of evaluati on complyi ng wit h third-party re sponsibility ; to a ctively make use of inter nal a udit t ools dete ct pote ntial management, streamli ne, sta ndar dize relate d transactions, strengtheni ng operations in accordance with law. Dee pening the information manag ement to e nsure full communica tion "zero re sistance". o consta ntly perfect ER , a nd BFS++, a nd PI, a nd MIS, a nd S CM, i nformation system based construction, full integrati on i nformation system, achieved information resources shared; to expa nd Portal system applicati on of breadt h and depth, play i nformation system on e nterprise of Assistant r ole; to perfect daily r un m ai ntena nce operation of re cords, pr omote pr obl em reasons a nalysis and system ha ndover; to strengtheni ng BFS++, and ERP , a nd S CM, te chnol ogy applicati on of training, im prove em ployee s applicati on i nformation system of ca pacity a nd lev el. Humanisti c care t o ensur e "zer o." To strengthe ning Hum anities care, conti nue s to foster compa ny wind clear, a nd ga s are, a nd heart Shun of cult ure atmosphere; stre ngthe ning l ove he lpe d trappe d, care difficult empl oyees; carried out style activitie s, rich empl oyees l ife; strengt heni ng healt h and la bour prote ction, orga nization career he alth medi cal, control career agai nst; conti nue s to implementation psychologi cal war ning preventi on system, trai ning em ployee s healt h of characte r, a nd sta ble of mood and enter prisi ng of attit ude , create d friendly fraternity of Huma nities e nvironment. o stre ngthe n risk management, e nsure that the business of "zero risk". To stre ngthened busi ness pla ns ma nagement, w ill busi ness busine ss plans cov er to all level , ensure t he busi ness can control i n control; t o cl ose concer n fina ncial, and coal ele ctric li nkage, and e nergy-savi ng sche duli ng, nati onal pol icy trends, strengthening tra ck, a ctive shoul d; to implementati on State-ow ned a ssets met hod, further spe cification busi ness financial management; to perfect ri sk tube control sy stem, achieved ri sk recognition, a nd mea sure, a nd a ssessment, a nd re port, a nd control fee dba ck of cl ose d ring management, impr ove risk preventi on capa city. o further standardize tra ding, a nd strive to a chieve "accor ding t o l aw , standardize and fair." Innovati on of performance manageme nt, to e nsure that potential employe es "zero fly". To strengt hen per formance manag ement, pr oce ss contr ol, enha nce em ployee evaluati on a nd level s of effective communi cation to impr ove performa nce ma nagement. o f urther quantify and refine empl oyee standards ... Work, full play part y, a nd branch, and members i n "five type Enterpri se" construction in the of core r ole, and fighting fortress r ole and pi one er model r ole; to continues to stre ngthe ning "four good" leadershi p constr uction, full play levels ca dres in enterpri se deve lopme nt in the f back bone ba ckbone r ole; to full strengthe ning mem bers youth w ork, full play youth em ployee s in compa ny devel opment i n the of force role ; to improve i nde pe nde nt Commission against corr uption work lev el, strengt heni ng o n enter prise busi ness key link of effectivene ss monitored. , And maintain stability. To further strengthen publ icity and educati on, im prove the overall legal system. We must stre ngthen safety management, esta blish and improve t he educati on, supervision, a nd eval uation as one of the traffic safety manageme nt mecha nism. o conscie ntiously sum up the Ol ympic se curity controls, pr omoting i ntegrated manageme nt to a hig her level, higher sta ndar ds, a higher level of devel opment. Employee s, today is lunar cal endar on Decem ber 24, t he ox Bell is a bout to ring, at this time of year, w e clearly feel the pul se of the XX power generati on compa ny to flourish, to more clearly hear XX power generation compa nies mat ure and symmetry breathi ng. Recalli ng past one a not her acr oss a raili ng, we are e nthusiasti c and full of confide nce. Future development opportunities, we m ore exciting fight more spirited. Employees, let us toget her acr oss 2013 full of challe nges a nd opportunities, to create a green, l ow -cost operation, full of huma ne care of a world-cl ass power ge neration com pany and work hard! The occasi on of the Spring Festival, my si ncere wi sh that y ou a nd the families of the staff in the ne w year, good health, happy, happy院（系） 建筑工程系 学号 三明学院 姓名 .密封线内不要答题 密封……………………………………………………………………………………………………………………………………………………结构力学试题答案汇总一、选择题(每小题3分,共18分)1. 图 示 体 系 的 几 何 组 成 为 ： （ A ） A. 几 何 不 变 ， 无 多 余 联 系 ； B. 几 何 不 变 ， 有 多 余 联 系 ； C. 瞬 变 ； D. 常 变 。
大学结构力学知识考试(习题卷1)第1部分：单项选择题，共66题，每题只有一个正确答案,多选或少选均不得分。
1.[单选题]图a所示超静定梁承受支座位移的作用,其力法基本体系如图b所示,则力法方程为A)style="width: auto;" class="fr-fic fr-fil fr-dib">B)style="width: auto;" class="fr-fic fr-fil fr-dib">C)style="width: auto;" class="fr-fic fr-fil fr-dib">D)style="width: auto;" class="fr-fic fr-fil fr-dib">答案:C解析:2.[单选题]下列关于瞬变体系的论述错误的是A)可作为建筑结构使用B)有多余约束C)外力作用下内力可能静不定D)外力作用下内力可能很大答案:A解析:A)主系数B)副系数C)自由项D)单位弯矩图答案:B解析:4.[单选题]下列说法正确的是A)单位荷载法计算位移的单位荷载根据计算方便进行假设B)虚功中的位移状态是不能进行虚设的C)虚功原理包括平衡条件和几何条件(位移协调条件)D)利用一个假定的虚拟单位力状态可能求出多个位移答案:C解析:5.[单选题]下列选项中为结构的是A)建筑物中门、窗B)建筑物中承受载荷而起骨架作用的部分C)建筑物中玻璃D)建筑物中水泥答案:B解析:6.[单选题]静定结构由于支座沉降( )或制造误差，结构内部将( )。
A)有内力、有位移B)无内力、无位移C)有内力、无位移D)无内力、有位移答案:D解析:7.[单选题]若荷载作用在静定多跨梁的基本部分上,附属部分上无荷载作用,则:A)基本部分和附属部分均有内力B)基本部分有内力,附属部分没有内力C)基本部分无内力,附属部分有内力D)不经过计算,无法判断答案:B解析:8.[单选题]在超静定结构中,若增大某局部的刚度EA,则其余部分的内力将A)可能增大也可能减小B)不变C)增大D)减小答案:D解析:9.[单选题]下图所示结构中,不能直接采用力矩分配法进行内力分析的结构是( )。
We will continue to impr ove the com pany's i nternal control sy stem, and steady improveme nt in a bility to ma nage a nd control, optimize business pr oce sses, to e nsure smooth proce sse s, responsi bilities i n pl ace ; to furt her strengt hen internal control s, play a control post i ndepe nde nt over sight role of evaluati on complyi ng wit h third-party re sponsibility ; to a ctively make use of inter nal a udit t ools dete ct pote ntial management, streamli ne, sta ndar dize relate d transactions, strengtheni ng operations in accordance with law. Dee pening the information manag ement to e nsure full communica tion "zero re sistance". o consta ntly perfect ER , a nd BFS++, a nd PI, a nd MIS, a nd S CM, i nformation system based construction, full integrati on i nformation system, achieved information resources shared; to expa nd Portal system applicati on of breadt h and depth, play i nformation system on e nterprise of Assistant r ole; to perfect daily r un m ai ntena nce operation of re cords, pr omote pr obl em reasons a nalysis and system ha ndover; to strengtheni ng BFS++, and ERP , a nd S CM, te chnol ogy applicati on of training, im prove em ployee s applicati on i nformation system of ca pacity a nd lev el. Humanisti c care t o ensur e "zer o." To strengthe ning Hum anities care, conti nue s to foster compa ny wind clear, a nd ga s are, a nd heart Shun of cult ure atmosphere; stre ngthe ning l ove he lpe d trappe d, care difficult empl oyees; carried out style activitie s, rich empl oyees l ife; strengt heni ng healt h and la bour prote ction, orga nization career he alth medi cal, control career agai nst; conti nue s to implementation psychologi cal war ning preventi on system, trai ning em ployee s healt h of characte r, a nd sta ble of mood and enter prisi ng of attit ude , create d friendly fraternity of Huma nities e nvironment. o stre ngthe n risk management, e nsure that the business of "zero risk". To stre ngthened busi ness pla ns ma nagement, w ill busi ness busine ss plans cov er to all level , ensure t he busi ness can control i n control; t o cl ose concer n fina ncial, and coal ele ctric li nkage, and e nergy-savi ng sche duli ng, nati onal pol icy trends, strengthening tra ck, a ctive shoul d; to implementati on State-ow ned a ssets met hod, further spe cification busi ness financial management; to perfect ri sk tube control sy stem, achieved ri sk recognition, a nd mea sure, a nd a ssessment, a nd re port, a nd control fee dba ck of cl ose d ring management, impr ove risk preventi on capa city. o further standardize tra ding, a nd strive to a chieve "accor ding t o l aw , standardize and fair." Innovati on of performance manageme nt, to e nsure that potential employe es "zero fly". To strengt hen per formance manag ement, pr oce ss contr ol, enha nce em ployee evaluati on a nd level s of effective communi cation to impr ove performa nce ma nagement. o f urther quantify and refine empl oyee standards ... Work, full play part y, a nd branch, and members i n "five type Enterpri se" construction in the of core r ole, and fighting fortress r ole and pi one er model r ole; to continues to stre ngthe ning "four good" leadershi p constr uction, full play levels ca dres in enterpri se deve lopme nt in the f back bone ba ckbone r ole; to full strengthe ning mem bers youth w ork, full play youth em ployee s in compa ny devel opment i n the of force role ; to improve i nde pe nde nt Commission against corr uption work lev el, strengt heni ng o n enter prise busi ness key link of effectivene ss monitored. , And maintain stability. To further strengthen publ icity and educati on, im prove the overall legal system. We must stre ngthen safety management, esta blish and improve t he educati on, supervision, a nd eval uation as one of the traffic safety manageme nt mecha nism. o conscie ntiously sum up the Ol ympic se curity controls, pr omoting i ntegrated manageme nt to a hig her level, higher sta ndar ds, a higher level of devel opment. Employee s, today is lunar cal endar on Decem ber 24, t he ox Bell is a bout to ring, at this time of year, w e clearly feel the pul se of the XX power generati on compa ny to flourish, to more clearly hear XX power generation compa nies mat ure and symmetry breathi ng. Recalli ng past one a not her acr oss a raili ng, we are e nthusiasti c and full of confide nce. Future development opportunities, we m ore exciting fight more spirited. Employees, let us toget her acr oss 2013 full of challe nges a nd opportunities, to create a green, l ow -cost operation, full of huma ne care of a world-cl ass power ge neration com pany and work hard! The occasi on of the Spring Festival, my si ncere wi sh that y ou a nd the families of the staff in the ne w year, good health, happy, happy院（系） 建筑工程系 学号 三明学院 姓名 .密封线内不要答题 密封……………………………………………………………………………………………………………………………………………………结构力学试题答案汇总一、选择题(每小题3分,共18分)1. 图 示 体 系 的 几 何 组 成 为 ： （ A ） A. 几 何 不 变 ， 无 多 余 联 系 ； B. 几 何 不 变 ， 有 多 余 联 系 ； C. 瞬 变 ； D. 常 变 。
四、计算分析题，写出主要解题步骤(4小题,共63分)1.作图示体系的几何组成分析（说明理由），并求指定杆1和2的轴力。
（本题16分）2.作图示结构的M图。
（本题15分）3.求图示结构Ａ、Ｂ两截面的相对转角，EI＝常数。
（本题16分）4.用位移法计算图示结构，并作M图，E = 常数。
（本题16分）说明：请将答案写在答题纸上。
三、计算分析题，写出主要解题步骤(4小题,共63分)（本题16分）1.本体系为无多约束的几何不变体系。
（4分）F N1=- F P （6分）； F N2=P F 310（6分）。
（本题15分）2.（5分）杆DC 、CB （各3分）；杆AC （3分）（本题16分）3.（ 4 分）（ 4 分）（ 8 分）（本题16分）4.M图 Q图三、作图示结构的M、Q图。
d=2m。
（20分）四、用力法计算，并作图示对称结构M图。
EI=常数。
（20分）五、用位移法计算图示刚架，并画出M图。
（20分）六、作图示梁的的影响线，并利用影响线求给定荷载作用下的值。
(12分)课4．5ql/88（6分） 正负号各1分三、（20分）支座反力20KN →, 10KN ↑, 20KN ↓, 10KN ↑ 每个图形10分，每根杆2分40 120 10060 4010M 图 （KN.m ）Q 图 (KN)每根杆符号错扣1分四、． （20分）2分）（3分）力法方程 0 IP 111=∆+X δ（2分）（2分）（2分）系数： ;3/2311EI l =δ （2分）;24/4IP EI ql -=∆ （2分） 解得： 16/1ql X = （1分）最后弯矩图M 图ql 2/163ql 2/32ql 2/163ql 2/32（4分）选择其它基本体系可参照以上给分。
五、 （20分）图M213i（ 3分 ） （ 2分 ）图Mi l2 3M 图 (Pl/304)（ 4分 ） （ 2分 ） M P图（ 2分 ）i r 1011= , l i r r 62112-== ,, 15222l i r =P P R P R 1652 , 01 -==, （6分 ）⎪⎪⎩⎪⎪⎨⎧=-+-=-016515606102121P l i Z l i Z l i iZ （ 1分 ） EI Pl Z EIPl Z 91215912252231==( 1分 ) 最后弯矩图六、． （12分）1m 1mDEFGM B 影响线C1m +AB（7分）mKN M B .851100201321301121-=⨯-⨯⨯⨯+⨯⨯⨯-= （5分）图6三、计算题（共60 分）1、作图7示刚架弯矩、剪力图。
We will continue to impr ove the com pany's i nternal control sy stem, and steady improveme nt in a bility to ma nage a nd control, optimize business pr oce sses, to e nsure smooth proce sse s, responsi bilities i n pl ace ; to furt her strengt hen internal control s, play a control post i ndepe nde nt over sight role of evaluati on complyi ng wit h third-party re sponsibility ; to a ctively make use of inter nal a udit t ools dete ct pote ntial management, streamli ne, sta ndar dize relate d transactions, strengtheni ng operations in accordance with law. Dee pening the information manag ement to e nsure full communica tion "zero re sistance". o consta ntly perfect ER , a nd BFS++, a nd PI, a nd MIS, a nd S CM, i nformation system based construction, full integrati on i nformation system, achieved information resources shared; to expa nd Portal system applicati on of breadt h and depth, play i nformation system on e nterprise of Assistant r ole; to perfect daily r un m ai ntena nce operation of re cords, pr omote pr obl em reasons a nalysis and system ha ndover; to strengtheni ng BFS++, and ERP , a nd S CM, te chnol ogy applicati on of training, im prove em ployee s applicati on i nformation system of ca pacity a nd lev el. Humanisti c care t o ensur e "zer o." To strengthe ning Hum anities care, conti nue s to foster compa ny wind clear, a nd ga s are, a nd heart Shun of cult ure atmosphere; stre ngthe ning l ove he lpe d trappe d, care difficult empl oyees; carried out style activitie s, rich empl oyees l ife; strengt heni ng healt h and la bour prote ction, orga nization career he alth medi cal, control career agai nst; conti nue s to implementation psychologi cal war ning preventi on system, trai ning em ployee s healt h of characte r, a nd sta ble of mood and enter prisi ng of attit ude , create d friendly fraternity of Huma nities e nvironment. o stre ngthe n risk management, e nsure that the business of "zero risk". To stre ngthened busi ness pla ns ma nagement, w ill busi ness busine ss plans cov er to all level , ensure t he busi ness can control i n control; t o cl ose concer n fina ncial, and coal ele ctric li nkage, and e nergy-savi ng sche duli ng, nati onal pol icy trends, strengthening tra ck, a ctive shoul d; to implementati on State-ow ned a ssets met hod, further spe cification busi ness financial management; to perfect ri sk tube control sy stem, achieved ri sk recognition, a nd mea sure, a nd a ssessment, a nd re port, a nd control fee dba ck of cl ose d ring management, impr ove risk preventi on capa city. o further standardize tra ding, a nd strive to a chieve "accor ding t o l aw , standardize and fair." Innovati on of performance manageme nt, to e nsure that potential employe es "zero fly". To strengt hen per formance manag ement, pr oce ss contr ol, enha nce em ployee evaluati on a nd level s of effective communi cation to impr ove performa nce ma nagement. o f urther quantify and refine empl oyee standards ... Work, full play part y, a nd branch, and members i n "five type Enterpri se" construction in the of core r ole, and fighting fortress r ole and pi one er model r ole; to continues to stre ngthe ning "four good" leadershi p constr uction, full play levels ca dres in enterpri se deve lopme nt in the f back bone ba ckbone r ole; to full strengthe ning mem bers youth w ork, full play youth em ployee s in compa ny devel opment i n the of force role ; to improve i nde pe nde nt Commission against corr uption work lev el, strengt heni ng o n enter prise busi ness key link of effectivene ss monitored. , And maintain stability. To further strengthen publ icity and educati on, im prove the overall legal system. We must stre ngthen safety management, esta blish and improve t he educati on, supervision, a nd eval uation as one of the traffic safety manageme nt mecha nism. o conscie ntiously sum up the Ol ympic se curity controls, pr omoting i ntegrated manageme nt to a hig her level, higher sta ndar ds, a higher level of devel opment. Employee s, today is lunar cal endar on Decem ber 24, t he ox Bell is a bout to ring, at this time of year, w e clearly feel the pul se of the XX power generati on compa ny to flourish, to more clearly hear XX power generation compa nies mat ure and symmetry breathi ng. Recalli ng past one a not her acr oss a raili ng, we are e nthusiasti c and full of confide nce. Future development opportunities, we m ore exciting fight more spirited. Employees, let us toget her acr oss 2013 full of challe nges a nd opportunities, to create a green, l ow -cost operation, full of huma ne care of a world-cl ass power ge neration com pany and work hard! The occasi on of the Spring Festival, my si ncere wi sh that y ou a nd the families of the staff in the ne w year, good health, happy, happy院（系） 建筑工程系 学号 三明学院 姓名 .密封线内不要答题 密封……………………………………………………………………………………………………………………………………………………结构力学试题答案汇总一、选择题(每小题3分,共18分)1. 图 示 体 系 的 几 何 组 成 为 ： （ A ） A. 几 何 不 变 ， 无 多 余 联 系 ； B. 几 何 不 变 ， 有 多 余 联 系 ； C. 瞬 变 ； D. 常 变 。
大学课程考试试题答案要点及评分细则课程名称：结构力学I 考试班级： 土木02（1、2、3、水建）一、是非题（每题2分，共10分）1．( √ ) 2. ( ⨯ ) 3． ( ⨯ ) 4． ( ⨯ ) 5． ( √ ) 二、填空题（共18分）1．_几何不变体系（3分）， 0 （1分） 2． 0 （4分）3． 基本结构在1=j X 作用下产生的沿i X 的位移（2分）基本结构在仅荷载作用下产生的沿i X 的位移（2分）4．5ql/8（6分） 正负号各1分三、（20分）支座反力20KN →, 10KN ↑, 20KN ↓, 10KN ↑ 每个图形10分，每根杆2分M 图 （KN.m ）Q 图 (KN)每根杆符号错扣1分四、． （20分）2分）（3分）力法方程 0 IP 111=∆+X δ（2分）（2分）（2分）系数：;3/2311EI l =δ （2分） ;24/4IP EI ql -=∆ （2分） 解得： 16/1ql X = （1分） 最后弯矩图 M 图ql 2/163ql 2/32 ql 2/163ql 2/32（4分）选择其它基本体系可参照以上给分。
五、 （20分）图M21i（ 3分 ） （ 2分 ）图Mi l2 3M 图 (P l /304) （ 4分 ） （ 2分 ） M P 图（ 2分 ）i r 1011= ,l i r r 62112-== ,, 15222l i r =PP R P R 1652 , 01 -==,（6分 ）⎪⎪⎩⎪⎪⎨⎧=-+-=-016515606102121P l i Z l i Z l i iZ （ 1分 ） EI Pl Z EIPl Z 91215912252231==( 1分 ) 最后弯矩图六、． （12分）1m 1mDEFGM B 影响线C 1m+AB（7分）mKN M B .851100201321301121-=⨯-⨯⨯⨯+⨯⨯⨯-= （5分）广西大学课程考试课程名称：结构力学I 考试班级：土木02（1、2、3、水建）一、是非题（每题2分，共10分）1．功的互等定理仅适用于线性变形体系。
