Figs 2a And 2b Show A Suspended Teahouse Designed By David Jameson The Teahouse Is Made Of Bronze And Glass And Is In T 1 (64.91 KiB) Viewed 147 times
Figs 2a And 2b Show A Suspended Teahouse Designed By David Jameson The Teahouse Is Made Of Bronze And Glass And Is In T 2 (49.22 KiB) Viewed 147 times
Figs 2a And 2b Show A Suspended Teahouse Designed By David Jameson The Teahouse Is Made Of Bronze And Glass And Is In T 3 (19.77 KiB) Viewed 147 times
Figs 2a and 2b show a suspended teahouse designed by David Jameson. The teahouse is made of bronze and glass and is in the form of a Japanese lantern. It hangs from two planar steel frames through four vertical steel bars. The two steel frames are laterally braced at the top and aside for stability. Note that the stairs are not attached to the teahouse. Please answer the following questions: (1) What is the load path of the structure? (2) Assume that the total weight of the teahouse is 150 kN, and universal beam sections UB 533x210x109 and UB 457x152x82 are used for the horizontal and vertical frame members, respectively. 1) Use displacement method to analyse one of the two frames, and calculate end moments of all frame members under the self-weight of the teahouse. Young's modulus of steel is 200 GPa. Fixed boundary conditions are assumed. The self-weight of frame members can be neglected. The dimensions of the frame are given in Fig. 2c, and the UB section table is provided in Appendix A. ii) Use moment distribution method to prove that the end moments of all frame members calculated in (2) are correct. iii) Draw bending moment diagram and shear force diagram of one steel frame, corresponding to the self-weight of the teahouse. [Hints: • The load from the teahouse can be equally distributed among the four steel bars that connect the teahouse to the frames. Therefore, we can just analyse one of the two frames. • Second moment of area of a UB section can be found in UB section table.]
direer (b)
2 m 3 m 2 + 2 m + 11 4 m TER (C) Fig. 2
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