A.ql
B.2ql
C.3ql
D.4ql
A.ql
B.2ql
C.3ql
D.4ql
A. <img src="https://cg-service.oss-cn-shanghai.aliyuncs.com/20240118/1705563392965943.jpeg">
B. <img src="https://cg-service.oss-cn-shanghai.aliyuncs.com/20240118/1705563392982483.jpeg">
C. <img src="https://cg-service.oss-cn-shanghai.aliyuncs.com/20240118/170556339303245.jpeg">
D. <img src="https://cg-service.oss-cn-shanghai.aliyuncs.com/20240118/1705563393099145.jpeg">
A.0
B.PL
C.-PL
D.P*L
A.160kN·m
B.-120kN·m
C.-240kN·m
D.-160kN·m
A.250Nm
B.500Nm
C.750Nm
D.1000Nm
A.FAX=0、FAY=60kN(↑)、MA=80kN·m(逆时针)
B.FAX=0、FAY=6OkN(↓)、MA=80kN·m(逆时针)
C.FAX=0、FAY=50kN(↑)、MA=65kN·m(顺时针)
D.FAX=0、FAY=50kN(↓)、MA=65kN·m(顺时针)
A. <img src="https://cg-service.oss-cn-shanghai.aliyuncs.com/20240118/1705563392783681.jpeg">
B. <img src="https://cg-service.oss-cn-shanghai.aliyuncs.com/20240118/1705563392834725.jpeg">
C. <img src="https://cg-service.oss-cn-shanghai.aliyuncs.com/20240118/170556339287395.jpeg">
D. <img src="https://cg-service.oss-cn-shanghai.aliyuncs.com/20240118/170556339291996.jpeg">
A.MB=-32kN·m,QB右=16kN
B.MB=-35kN·m,QB右=20kN
C.MB=32kN·m,QB右=20kN
D.MB=-40kN·m,QB右=35kN
A.FAx=0、FAY=20kN(↓)、MA=70kN·m(逆时针)
B.FAx=0、FAY=20kN(↑)、MA=70kN·m(顺时针)
C.FAx=0、FAY=20kN(↑)、MA=70kN·m(逆时针)
D.FAx=0、FAY=20kN(↓)、MA=70kN·m(顺时针)