[건축구조] truss 응력실험

소개글

truss 모형을 만들고 하중을 주어 인장/압축을 받는 형상을 확인한다.
영어로 작성된 자료로서 응력실험을 하는 전과정 및 계산과정과 결론으로
자세히 설명되어 있다.

목차

1. Experiment Purpose

2. Experiment Method

3. Calculation Method

4. Experiment Process
(1) Howe truss

[1]
[2] Assumption of E.P
[3] Howe truss Stress Calculation
[4] Howe truss Bending Shape
[5-1] Consequence & Discussion

[5-2]
[5-3]

(2) Pratt truss
[1] Assumption of E.P
[2] Pratt truss Stress Calculation
[3] Pratt truss Bending Shape
[4-1] Consequence & Discussion
[4-2] [4-3] It can be used generally 45~60m post interval.

(3) Warren Truss
[1] Assumption of E.P
[2] Warren truss Stress Calculation
[3] Warren truss Bending Shape
[4-1] Consequence & Discussion
[4-2]
[4-3]
[4-4]
[4-5]

5. Final Discussion

본문내용

1. Experiment Purpose
① We understand a basic principle of truss, and study general knowledge of Howe
truss, Pratt truss, Warren truss.
② After making a model, we have compared the strain by load with the stress
calculation result.
③ According to the experiment result, we look at the each truss`s features and
understand where each truss be used.

2. Experiment Method
① Give concentrated load at three nodal points in the middle of Howe truss.
② In the same way, apply Pratt truss and Warren truss.
③ Confirm and compare the strain(transformation) of three truss by load.

3. Calculation Method
① When we calculate member force of truss , ignore its own weight.
② Every member is connected by pin.
③ We assume that external force(load) acts on only the nodal points.
④ A straight line connecting nodal points is the same as the central axis of member.
⑤ Member of Truss only receive the axial force(tension, compression).

4. Experiment Process

(1) Howe truss
[Definition] Generally, it is "Howe truss" that inclined member and upside member of
truss receive the compression.

참고 자료

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