w***o
发帖数: 1411 | 1 I created a simple staad model for a continous two span beam with uniform
stiffness. Theoretically, changing the beam stiffnes should not affect the
support reactions, since the beam relative stiffness does not change. But
stadd gives different reactions for different beam stiffness. This can not
be correct. What's wrong with stadd here?
Thanks.
This is the code:
STAAD PLANE
START JOB INFORMATION
ENGINEER DATE 29-Jul-10
END JOB INFORMATION
INPUT WIDTH 79
UNIT FEET KIP
JOINT COORDINATES
1 0 0 0; |
F**********s
发帖数: 1231 | 2 How you change your stiffness?
Give me a new code with a different stiffness.
The right answer should be
13.01 kip
21.98 kip
-2.99 kip
Total__________32.01kips
【在 w***o 的大作中提到】
: I created a simple staad model for a continous two span beam with uniform
: stiffness. Theoretically, changing the beam stiffnes should not affect the
: support reactions, since the beam relative stiffness does not change. But
: stadd gives different reactions for different beam stiffness. This can not
: be correct. What's wrong with stadd here?
: Thanks.
: This is the code:
: STAAD PLANE
: START JOB INFORMATION
: ENGINEER DATE 29-Jul-10
|
w***o
发帖数: 1411 | 3 选一个不同W BEAM，STIFFNESS 就不同了。
不过我好像知道怎么回事了，STAAD自动加入了SHEAR DEFORMATION，这是为什么结果跟
用梁理论算出来的不一样。
【在 F**********s 的大作中提到】
: How you change your stiffness?
: Give me a new code with a different stiffness.
: The right answer should be
: 13.01 kip
: 21.98 kip
: -2.99 kip
: Total__________32.01kips
|
