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Question: could i get help on solving problem 28i have upload...

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Could i get help on solving problem 2.8?I have upload it the problem statement in this question.

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Summary 7 4 Chapter 2 Design Loads and Structural Framing Dead load, however, is not reduced unless it provides an adverse effect, such as when determining uplift force on a footing. PROBLEMS To account for dynamic effects from moving vehicles, elevators, sup- P2.1.Determine the deadweight of a 1-t-long segment of supported steel beams, with a tributary width of 10ft, and the prestressed, reinforced concrete tee-beam whose cross weighs 50 psf section is shown in Figure P2.1. Beam is constructed with The estimated uniform dead load for structural steel lightweight concrete which weighs 120 Ibs/t ports for reciprocating machinery, and so forth, impact factors that increase the live load ure specified in building codes In zones where wind or earthquake forces are small, low-rise buildings framing, fireproofing, architectural features, floor finish, and ceiling tiles equals 24 psf, and for mechanical duct ing, piping, and electrical systems equals 6 psf. are initially proportioned for live and dead load, and then checked for wind or earthquake, ce both, depending on the region; the design can be easily modified as needed. On the other hand, for high-rise buildings located in regions where large earthquakes or high winds are common designers must give high priority in the preliminary design phase to select structural systems (for example, shear walls or braced frames) that resist lateral loads efficiently Wind velocities increase with height above the ground. Values of positive wind pressures are given by the velocity pressure exposure coefficient K, tabulated in Table 2.4. Negative pressures of uniform intensity develop on three sides of rect angular buildings that are evaluated by multiplying the magnitude of the positive windward pressure at the top of the building by the coefficients in Table 2.7 The wind bracing system in each direction must be designed to carry the sum of the wind forces on the windward and leeward sides of the 12 95 * P2.2. Determine the deadweight of a 1-ft-long segmentnica of a typical 20-in-wide unit of a roof supported on a nomi nal 2 × 16 in, southern pine beam (the actual dimensions are in, smaller). The -in. plywood weighs 3 wide ange steel bean with ineproofing For tall buildings or for buildings with an unusual profile, wind tunnel studies using instrumented small-scale models often establish the mag- nitude and distribution of wind pressures. The model must also include adjacent buildings, which influence the magnitude and the direction of the air The ground motions produced by earthquakes cause buildings, bridges, and other structures to sway. In buildings this motion creates lateral in ertia forces that are assumed to be concentrated at each floor. The inertia forces are greatest at the top of baildings where the displacements are inealationtpy 4 plywood . P2.4. Consider the floor plan shown in Figure P24. Compute the tributary areas for (a) floor beam B1 (b) floor beam B2, (c) girder Gl, () girder G2. (e) corner column CI, and ( interior column C2 * The magnitude of the inertia forces depends on the size of the carthquake, the weight of the building, the natural period of the building, the stiffness and ductility of the structural frame, and the soil type. Buildings with a doctile frame (that can undergo large detormations without collapsing) may be designed for much smaller seismic forces than structures that depend on a brittle structural sy em (for example, unreinforced masonry) Tsunami are a set of powerful waves that generate hydrostatic and P23. A wide flange steel beam shown in Figure P23 supports a permanent concrete masonry wall, floor slab, architectural finishes, mechanical and electrical systems Determine the uniform dead load in kips per linear fI acting on the beam. 2 10-2 The wall is 9.5-ft high, non-Joad bearing and later- Hydrostatic uplift forces affect even partially submerged water-tight structures, which causes tsunami waves to be full of large dangerous and ally braced at the top to upper floor framing (not shown). The wall consists of 8-in. lightweight reinforced concrete masonry units with n average weight of 90 psf. The com- te concrete floor slab construction spans over si ation of large debris impact loads. pact loads.asobe

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