ARCH 331 Note Set Su2012abn 1 Structural load Requirements International Building code (2012) ARCH 331 Note Set Su2012abn 2 Live Loads & Allowed Reductions ARCH 331 Note Set Su2012abn 3 Minimum Roof Loads ARCH 331 Note Set Su2012abn 4 Minimum Snow Loads ARCH 331 Note Set Su2012abn 5 Documentation of Loads
for reductions in minimum roof live loads and Section 7.5 of ASCE 7 for partial snow loading. 1607.12.2 General. The minimum uniformly distributed live loads of roofs and marquees, Lo, in Table 1607.1 are permitted to be reduced in accordance with Section 1607.12.2.1. 1607.12.2.1 Ordinary roofs, awnings and canopies.
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1 ARCH 331 Note Set Su2012abn 1 Structural load Requirements International Building code (2012) ARCH 331 Note Set Su2012abn 2 Live Loads & Allowed Reductions ARCH 331 Note Set Su2012abn 3 Minimum Roof Loads ARCH 331 Note Set Su2012abn 4 Minimum Snow Loads ARCH 331 Note Set Su2012abn 5 Documentation of Loads
Mechanics of Materials MECHANICS MATERIALS Mechanics of Materials 3 Lecture 5 Foundations Structures ARCH 331 F2008abn Mechanics of Materials external loads and their effect on deformable bodies use it to answer question if structure meets requirements of ± stability and equilibrium
ARCH 331 Note Set 28.1 Su2014abn 2 Reinforced Masonry Design Structural design standards for reinforced masonry are established by the Masonry Standards Joint Committee consisting of ACI, ASCE and The Masonry Society (TMS), and presents allowable stress design as well as limit state (strength) design.
1 Mechanics of Materials 1 S2009abn Lecture 4 Elements of Architectural Structures ARCH 614 E LEMENTS OF A RCHITECTURAL S TRUCTURES: F ORM, B EHAVIOR, AND D ESIGN ARCH 614 D R. A NNE N ICHOLS S PRING 2014 four mechanics of materials lecture www.carttalk.com
ARCH 331 Note Set 22.1 Su2014abn 5 Reinforced Concrete Beam Members Strength Design for Beams Sstrength design method is similar to LRFD. There is a nominal strength that is reduced by a factor which must exceed the factored design stress.
ARCH 631 Note Set 10.1 F2013abn 3 Reinforced concrete is a composite material, and the average density is considered to be 150 lb/ft3. It has the properties that it will creep (deformation with long term load) and shrink (a result of
The nominal flexural strength Mn is the lowest value obtained according to the limit states of 1. yielding 2. lateral-torsional buckling 3. flange local buckling 4. web local buckling For a laterally braced compact section (one for which the plastic moment can be reached before local buckling) only the limit state of yielding is applicable.
Connections Connections must be able to transfer any axial force, shear, or moment from member to member or from beam to column. Steel construction accomplishes this with bolt and welds. Wood construction uses nails, bolts, shear plates, and split-ring connectors. Single Shear - forces cause only one shear “drop” across the bolt.
ENDS 231 Symbols F2007abn 2 d depth, often cross-sectional (in, mm, m); perpendicular distance from a force to a point in a moment calculation (in, mm, m) dx difference in the x direction between an area centroid ( x) and the centroid of the composite shape (xˆ ) (in, mm) dy difference in the y direction between an area centroid ( y) and the centroid of the composite
Pure Bending in Beams With bending moments along the axis of the member only, a beam is said to be in pure bending. Normal stresses due to bending can be found for homogeneous materials having a plane of symmetry in the y axis that follow Hooke’s law. Maximum Moment and Stress Distribution
Beam Bending Stresses and Shear Stress Notation: A = name for area A web = area of the web of a wide flange section b = width of a rectangle = total width of material at a horizontal section c = largest distance from the neutral axis to the top or bottom edge of a beam d = calculus symbol for differentiation = depth of a wide flange section d y
Non-Wind Load Considerations Modifications required for rain loads, roof live loads, and flood loads (including hydrostatic forces) Rain Loads: Determine per ASCE 7, but for hurricane safe rooms, add 6” per hour to ICC 500 Figure 303.2 rates Roof Live Loads: Determine per ASCE 7, but not less than: – 100 psf for tornado safe rooms
A. Seismic, Wind and Snow Loads for each type of structure were computed based on ASCE 7-93: Minimum Design Loads for Build-ings and Other Structures. Minimum wind and minimum roof live load were based on MPS 1 - 4
WIND LOADS: GENERAL REQUIREMENTS 26.2 DEFINITIONS The following defi nitions apply to the provisions of Chapters 26 through 31: APPROVED: Acceptable to the authority having jurisdiction. BASIC WIND SPEED, V: Three-second gust speed at 33 ft (10 m) above the ground in Exposure C (see Section 26.7.3) as determined in accordance with Section 26.5.1.