PROCEDURE FOR DESIGN AND ANALYSIS OF STABILITY OF NEW AND EXISTING BUILDING STRUCTURES

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"PROCEDURE FOR DESIGN AND ANALYSIS OF STABILITY
OF NEW AND EXISTING BUILDING STRUCTURES"
2nd MC meeting and 1st Working Group Meeting,
Eindhoven (NL) on December 13th and 14th 2006

• Zivko LJ. BOZINOVSKI,
• Prof. d-r, IZIIS - Skopje, e-mail
  zivko_at_pluto.iziis.ukim.edu.mk

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Procedure for analysis and design of building
structures
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DEFINITION OF THE LEVEL OF REQUIRED SEISMIC
PROTECTION
The level of required seismic protection is given
in the seismological map as an annex to the
Regulations for Construction of Highrises in
seismically active regions. It is defined by
special seismological-geological investigations
of the considered site.
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Epicentral map of Republic of Macedonia
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DEFINITION OF CHARACTERISTICS OF MATERIALS

• The minimum necessary parameters that should be
  defined are
• ultimate compressive stress of masonry,
• ultimate tensile stress of masonry,
• elasticity modulus of masonry,
• sliding modulus of masonry

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Katen dijagram P - ? , dobien za vreme 'in situ'
test
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Block diagram of analysis of elements up to
ultimate states
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JACKETED STONE WALL
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JACKETED STONE WALL
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REINFORCED CONCRETE WALL
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REINFORCED CONCRETE WALL
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Diagrams of strains, stress and forces stage Y
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Diagrams of strains, stress and forces stage U
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Diagram M - ?
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Diagram ?o - M
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Block diagram of a nonlinear dynamic response of
a structure
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Hysteretic relationship P - ?, model
VEZ-2-M13-EL-2
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Hysteretic relationship P - ?, model PZM2-E-1,
model to a scale of 1 3, first storey
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Hysteretic relationship P - ?, model FKPZ-M-3
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Bozinovskis hysteretic model
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Structural element input P - ? diagram
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Structural system response P - ? diagram
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Structural system response P - ? diagram
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Structural system response. P - ? diagram and ?
- t diagram
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Structural system response S t diagram
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System response. Story - ? diagrams, after
reducing of reinforcement
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Structural Typology

• 1. Pure stone structure
• 2. Brick masonry structure without RC belts
• 3. Brick masonry structure with RC belts
• RC frame structure
• 5. Prefabricated structure (woodsteelRC)

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1. PURE STONE MASONRY
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Wooden floor structure
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Stone - brick masonry
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2. BRICK MASONRY FRAMED WITHOUT RC BELT COURSES
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3. BRICK MASONRY FRAMED WITH RC BELTS
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4. FRAME RC STRUCTURE
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5. Prefabrikuvani objekti (elik drvo beton )
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STRATEGY

• 1. REPAIR OF DAMAGED STRUCTURES
• 2. REPAIR AND STRENGTHENING OF DAMAGED STRUCTURES
• 3. REPAIR AND STRENGTHENING OF EXISTING
  NONDAMAGED STRUCTURES
• REPAIR, STRENGTHENING, ADAPTATION, RECONSTRUCTION
  AND REVITALIZATION OF THE EXISTING STRUCTURES
• 5. REVITALIZATION OF THE EXISTING STRUCTURES

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Strength - deformability storey diagram1st.
storey - transverse/direction
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Story P - ? diagram, primary school Radobor,
existing state
VII
VIII
IX
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Story P - ? diagram, primary school Radobor,
repaired state
VII
IX
VIII
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Plan of ground floor, Primary school Goce Delcev
I - Bitola, repaired state
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Plan of ground floor, Primary school Goce Delcev
II - Bitola, repaired state
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Plan of ground floor, Primary schoolStrasho
Pindzur Vevchani, repaired state
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Existing masonry and new frame RC structure
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Plan of ground floor, Primary school Luigj
Gurakuchi - Zelino, new design state
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First storey plan of Army Club in Bitola,
repaired state
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Storey P-? diagram, Army Club in Bitola,
direction X-X, existing state
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Storey P-? diagram, Army Club in Bitola, direc.
X-X, repaired state
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Storey P-? diagram, Army Club in Bitola,
direction Y-Y, repaired state
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Storey P-? diagram, Students Dormitoru in Bitola,
Unit A, direction Y-Y, repaired state
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Storey - capacity and required displacement
diagrams
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CONCLUSION ON THE STABILITY AND VULNERABILITY OF
THE STRUCTURE Based on the strength and
deformability capacities of the bearing elements
and the structure as a whole and on the basis of
required strength and deformability for expected
seismic effects with intensity and frequency
content, conclusions are drawn regarding the
stability of the structure and its vulnerability
level. It is of exceptional importance to bring
the strength, stiffness and deformability of the
structure within the frames of the requirements
according to the valid technical regulations and
latest knowledge on the behaviour of masonry
structures exposed to gravity and seismic effects.