— David Wagner 2007/10/29 11:35

You have been contacted by TxDOT to design modular restrooms for several rest areas on a major road from San Antonio to McAllen, Texas. The unit shall consist of a timber roof and masonry walls as shown in the attached figures. The roof configuration can be changed to a different timber roof system if you preferred. All structural timber members must satified the NDS 2005 Specifications and all structural masonry elements shall be designed in accordance with the ACI 530-05. The floor slab is going to be 4-inch thick. The bearing capacity of the soil has been estimated to be 5000 psf. The water table is very deep. The structure shall resist a 3-sec gust speed of 100 mph. Only Gr.60 steel is available. Assume a unit weight of soil equal to 120 pcf.

Each student will submit a report. The report should be as follows:

1. ✔Cover sheet. Include course name, course number, student name, student ID, date, etc.
2. ✔Project Description. Describe the structural system, the methods of analysis, and codes used for design.
3. Drawings showing final geometry. Show final layout and dimensions. Drawings do not need to be a scale, but they should be neat.
4. ✔Summary of material properties chosen. List the strength and properties of the materials selected. Not all members may need the same quality and strength.
5. ✔Construction Sequence. Describe how do you think the structure is going to be built.
6. ✔Loading conditions investigated. List all loads considered (i.e., dead loads, live loads, lateral loads, thermal loads, construction loads, etc.)
7. Elevations and sections. Elevations and cross-sections must be properly labeled and must have the final dimensions.
8. ✔Summary of quantities. Provide a summary of materials (timber, masonry, steel reinforcement, etc.
9. ✔Estimated cost. Estimate the total material cost of the structure.
10. Appendix I: Analysis. Show the structural analysis of the different structural members. Show shear and bending diagram envelopes. Label each diagram so it is easy to identify which loading condition produced the critical shears and moments.
11. Appendix II. Design. Show all design calculations (strength and serviceability). Indicate controlling Code sections as necessary.

The report should be neat and clearly organized. Make sure that the analysis and design have enough information so they can be followed by someone that has not worked in your project.

1. October 22: Structural configuration (including preliminary sizes), construction sequence, material types and loading.
2. November 5: Design roof system.
3. November 19: Design of masonry elements.
4. November 29: Summarize quantities, calculate cost and submit final report. (No later than 5 p.m.)