1) The document provides simplified guidelines for constructing masonry buildings in India's Seismic Zone IV to make them earthquake resistant.
2) Key elements for earthquake safety include using good cement mortar, adding horizontal seismic bands at various building levels, and vertical reinforcement bars in walls, around openings and at corners.
3) Recommendations are given for the size and spacing of reinforcement based on the building type and number of stories. Proper techniques are needed to embed the reinforcement in brickwork.
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Composite construction or Composite Structure/FrameAbdul Rahman
Composite structure of steel and concrete has been explained under this ppt with examples, type of structural members, advantages and comparison with other structures like R.C.C structure and Steel structures.
Composite construction or Composite Structure/FrameAbdul Rahman
Composite structure of steel and concrete has been explained under this ppt with examples, type of structural members, advantages and comparison with other structures like R.C.C structure and Steel structures.
TIPS:16 - HOW TO MAKE STONE MASONRY BUILDINGS EARTHQUAKE RESISTANT?Amar Gohel
HOW TO MAKE STONE MASONRY BUILDINGS EARTHQUAKE RESISTANT?
(Tip : 16):
HOW TO MAKE STONE MASONRY BUILDINGS EARTHQUAKE RESISTANT? (Tip : 16) Prepared By :- AMARDEEP GOHEL DIVYESH BHARKHADA SANGEETA SANGHANI
Field of building: Field of building Mainly two type of building. Engineering Building :- “The building was built according to structural design and architectural feature to protect building against earthquake.” Non-Engineering Building :- “The building was built as non-structural design and architectural feature is known as non-engineering building.”
Type of building acc. to material: Type of building acc. to material Timber building Stone building RCC building Steel building Composite building
Stone masonry: Stone masonry It is the art of building the structures in the stones. In some parts of the country building stones are abundantly available in nature. Those stones when cut and dressed to the proper shapes, provide an economical material for the construction of various structure.
Use of stone masonary: Use of stone masonary Building foundation, Dams Building wall, piers, columns, lintel Light house Domes, Arches Floors, Paving works Railway Ballast
Type of Stone masonry : Type of Stone masonry
Performance of stone masonry against earthquake: Performance of stone masonry against earthquake Bulging Effect :- During earthquake the poor interlocking, uneven load distribution due to uneven size of the stone masonry will create a bulging effect on the stone masonry.
PowerPoint Presentation: The
REBUILT: REBUILT After bulging of stone structure rebuilt will necessary . For rebuilt we can provide connecting stone per 1m of height. Grouting may prepare for fill the voids and making well joint. 1m
rEBUILT: rEBUILT
rEBUILT Video tutorial: rEBUILT Video tutorial How To Repoint Masonry Joints.mp4
HISTORY OF STONE MASONARY: HISTORY OF STONE MASONARY The stone is easily available in nature in huge amount. The stone is very strong in compression. In a past time almost masonry work prepared in stone masonry. The width of stone wall is larger then other. So that in a past time stone masonry is used rather then brick masonry.
HISTORY OF STONE MASONARY: HISTORY OF STONE MASONARY But the stone masonry is poor parfomane in earthquake due to uneven shape, improper size of stone. So that the wall joint is not well prepared and the stone masonry most chances to fail in earthquake.
HISTORY OF STONE MASONARY: HISTORY OF STONE MASONARY Such stone masonry structure was failed in killary earthquake (1993) of magnitude 6.2 Over a 8,000 people died
HISTORY OF STONE MASONARY: HISTORY OF STONE MASONARY The main patterns of earthquake damage include in KILLARI earthquake: A) bulging/separation of walls in the horizontal direction into two distinct wythes (Figure a ), B) separation of walls at corners and T-junctions, (c) separation of poorly constructed roof from walls, and eventual collapse of roof, (d) disintegration of
The presentation includes difference between repair, retrofitting and rehabilitation. methods of repairs, repair materials, various methods for retrofitting etc.
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data-driven technique based on artificial intelligence (AI). It has been reported that AI-based inductive modeling techniques are
frequently used to model complex process due to their powerful and non-linear model structures and their increased capabilities
to capture the cause and effect relationship of such complex processes. Gene Expression Programming (GEP) is one of the AI
techniques that have emerged as a powerful tool in modeling complex phenomenon into simpler chromosomal architecture. This
technique has been proved to be more accurate and much simpler than other AI tools. In the present study, an attempt has been
made to implement GEP for the development of scour depth prediction model at bridge piers in cohesive sediments using
laboratory data available in literature. The present study reveals that the performance of GEP is better than nonlinear regression
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The Roman Empire A Historical Colossus.pdfkaushalkr1407
The Roman Empire, a vast and enduring power, stands as one of history's most remarkable civilizations, leaving an indelible imprint on the world. It emerged from the Roman Republic, transitioning into an imperial powerhouse under the leadership of Augustus Caesar in 27 BCE. This transformation marked the beginning of an era defined by unprecedented territorial expansion, architectural marvels, and profound cultural influence.
The empire's roots lie in the city of Rome, founded, according to legend, by Romulus in 753 BCE. Over centuries, Rome evolved from a small settlement to a formidable republic, characterized by a complex political system with elected officials and checks on power. However, internal strife, class conflicts, and military ambitions paved the way for the end of the Republic. Julius Caesar’s dictatorship and subsequent assassination in 44 BCE created a power vacuum, leading to a civil war. Octavian, later Augustus, emerged victorious, heralding the Roman Empire’s birth.
Under Augustus, the empire experienced the Pax Romana, a 200-year period of relative peace and stability. Augustus reformed the military, established efficient administrative systems, and initiated grand construction projects. The empire's borders expanded, encompassing territories from Britain to Egypt and from Spain to the Euphrates. Roman legions, renowned for their discipline and engineering prowess, secured and maintained these vast territories, building roads, fortifications, and cities that facilitated control and integration.
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Roman architecture and engineering achievements were monumental. They perfected the arch, vault, and dome, constructing enduring structures like the Colosseum, Pantheon, and aqueducts. These engineering marvels not only showcased Roman ingenuity but also served practical purposes, from public entertainment to water supply.
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http://sandymillin.wordpress.com/iateflwebinar2024
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This webinar will introduce you to my framework, highlighting the key competencies I identified from my research. It will also show how anybody involved in language teaching (any language, not just English!), teacher training, managing schools or developing language learning materials can benefit from using the framework.
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CLASS 11 CBSE B.St Project AIDS TO TRADE - INSURANCE
EARTHQUAKE SAFE CONSTRUCTION OF MASONRY BUILDINGS
1. EARTHQUAKE SAFE CONSTRUCTION OF MASONRY BUILDINGS
Simplified Guideline for All New Buildings in the Seismic Zone IV of India
Introduction:
As usual new construction of buildings under IAY, Prime Minister Rojgar Yojana and buildings
under various other National and State schemes get started in the month of May. The Ministry of Home
Affairs is keen that All New Buildings should be made earthquake resistant in the first instant so that we do
not add to the stock of existing unsafe buildings. Since most of the buildings are constructed using brickwork
or, solid hollow concrete blocks with flat roofs, very simple illustrated guidance is provided in the attached
brochure for incorporating the earthquake resistant features suitable for seismic zone IV.
Essential Elements for Earthquake Safety1
:
The essential elements required to make a building earthquake safe are as given in Figure 1. Some
additional requirements are detailed in the following paragraphs.
1. GOOD CEMENT MORTAR:
The cement mortar should be used in the ratio of 1 part of cement with 6 parts of sand (1 sack of
cement mixed with 6 equal sacks of sand).
2. HORIZONTAL SEISMIC BANDS:
A seismic band consists of reinforced concrete flat runner through all external and internal
masonry walls at the following levels in the building.
a. at the plinth level of the building
b. at the levels of lintels of doors and windows
c. at the ceiling level of roofs consisting of wooden joists or, prefabricated reinforced concrete beams
or, planks. (Such band will not be necessary if the roof consists of Reinforced Concrete or,
Reinforced Brick slabs cast on the walls covering a minimum of 2/3 of the thickness of the wall.)
The dimensions of the band and the reinforcement inside depend upon the length of the walls
between the perpendicular cross walls. The table below (Table-1) shows the dimensions to be adopted for
the seismic bands and the internal reinforcement details to be provided. The reinforcement and bending
details of seismic bands are given in the Figure-2. Reinforcing bars will be of Fe 415 type [TOR or, High
Yield Strength Deformed, i.e. HYSD bars]
1
The details given here are extracted from IS: 4326-1993 Code of Practice as applicable to buildings with Brick/ Concrete
block walls and R.C. flat slab roofs. Details not given here may be seen in the Code.
1. Lintel Band
2. Roof/ Floor Band
3. Vertical reinforcing bar at corner
4. Door
5. Window
6. Plinth Band
7. Window Sill Bands (in all
Important Buildings only)
Figure – 1: Essential Internal
Elements in Buildings
for Earthquake Safety
Zone IV
2
1
2
1
5
4
3
6
7
2
1
7
2. b1
b
1
2
2
2
2
1
33
b
b2
30 40
75
6@150
1
2
30
40
150
6@1501 2
bb
(a) (b)
40
30
(c) (d)
(e) (f)
(a) Section of the Band with 2 longitudinal steel bars
(b) Section of the Band with 4 longitudinal steel bars
(c) Structural Plan at L- type wall junction
(d) Structural Plan at T- type wall junction
(e) 3 Dimensional view of the L - type wall junction
(f) 3 Dimensional view of the T - type wall junction
1. Longitudinal reinforcements
2. Lateral Ties
3. Vertical reinforcement at corners
b, b1, b2 Wall thickness
Figure-2: Reinforcement and Bending Details of Seismic Bands
Table-1: Recommended size and longitudinal steel in Seismic Bands (Zone IV)
Residential buildings Important Public Buildings (Schools,
Hospitals, Meeting Halls, Anganwadis, etc.)
Internal
length of
wall Size of the band No. of Bars Dia (mm) Size of the band No. of Bars Dia (mm)
5 m or, less 10 cm x wall width 2 8 10 cm x wall width 2 10
6 m 10 cm x wall width 2 10 10 cm x wall width 2 12
7 m 15 cm x wall width 4 8 15 cm x wall width 4 10
8 m 15 cm x wall width 4 10 15 cm x wall width 4 12
3. VERTICAL REINFORCEMENT IN THE BRICK WALLS:
For earthquake safety in seismic zone IV reinforcing bars have to be embedded in brick masonry at
the corners of all the rooms and the side of the door openings. Window openings larger than 60 cm in
width will also need such reinforcing bars (Figure – 4). The diameter of the bar depends upon the
number of storeys in the building. The recommendations are given in Table-2.
Providing the vertical bars in the brickwork and concrete blocks requires special techniques which
could be easily learnt by the supervising engineers and masons will need to be trained.
31
2
3
1
2
3. These vertical bars have to be started from the foundation concrete, will pass through all seismic
bands where they will be tied to the band reinforcements using binding wire and embedded to the ceiling
band/roof slab as the case may be using a 300 mm 90° bend. Sometimes the vertical bars will not be
made in one full length. In that case the extension of the vertical reinforcement bars are required, an
overlap of minimum of 50 times the bar diameter should be provided. The two overlapped reinforcement
bars should be tied together by using the binding wires.
1
1
1
1/2
1/2
1/2
1/2
3/4
1/2
3/4
1/2
1/21/21/21/21/2
1/2
1/2
1/2
1/4
1/4
11 1/21/2
(a) (b)
33
3 3
3/4
3/4
a & b : Alternate courses in one brick wall
1 : One brick length
½ : Half brick length
¼ : Quarter of a brick length
¾ : Three quarters of a brick length
3 : Vertical reinforcement bars with Concrete/ mortar filling in
pocket of M20 grade (1:1½:3 nominal mix)
Figure-3: Typical Details of Providing Vertical Steel
Bars in Brick Masonry
Table-2: Recommended size of vertical
steel in Seismic Bands (Zone IV)
Residential
buildings *
Important
Public
Buildings *
(Schools,
Hospitals,
Meeting
Halls,
Anganwadis,
etc.)
No. of
storeys
Floor
Dia of Single
HYSD (TOR)
Bar at corners
of room (mm)
Dia of Single
HYSD(TOR)
Bar at corners
of room (mm)
One - 10 12
Top 10 12
Two
Bottom 12 16
Top 10 12
Middle 12 16Three
Bottom 12 16
*Building of four storey though permitted in
Zone IV, but not desirable.
Table-3: Recommended joint details with the vertical reinforcement at corner for masonry walls
using different kind of materials
Type of
Joint
Corner reinforcement in
case of Brick Masonry
Corner reinforcement in case
of Solid Concrete Block
Masonry
Corner reinforcement in case of
Hollow Concrete Block Masonry
(see the hole and slit made)
L- Joint
T- Joint
4. B
WELL COMPACTED SOIL
2 T
P.C.C 1:4:8
2 TOR 12
6mm DIA. @150 c/c
125
150
<125
1.5 T
T
100Plinth Band
Floor Finish
<
Ground Level
T - 230 for Brick Work
200 for Block Work
Plinth Level
150
Well compacted Sand
Masonry in C.M.1:6
Masonry in C.M.1:6
(a) Sectional Elevation of Door
(b) Sectional Elevation of Window
(c) Section 2-2
Figure-4: Typical Details of Providing Vertical Steel Bars around doors/windows
4. VERTICAL REINFORCEMENT AT JAMBS OF OPENINGS:
All door and window openings wider than 600 mm will have vertical reinforcement in jambs as
shown in Figure-4.
5. FOUNDATION
Foundation width 'B' should
be decided by the load coming
on the foundation and the
bearing capacity. Masonry width
may be reduced by ½ times T in
every step of 150 mm height.
NOTE:
In sandy soils with high water
table within 8 m depth below
ground level, which may get
liquefied during earthquake of
MSK intensity VIII, pile
foundation need to be used in
consultation with the Structural/
Geotechnical Engineer.
National Disaster Management Division,
Ministry of Home Affairs, North Block, New Delhi, India
Tel: 91 11 2309 3178; Tel/Fax: 2309 4019; Fax: 91 11 2309 3750;E-mail: ndmindia@nic.in; dsdm@nic.in; Website: www.ndmindia.nic.in
P r e p a r e d b y :
Professor Anand S. Arya and Jnananjan Panda
Tel: 91 11 5539 6386; Email: anand.s.arya@undp.org, jnananjan.panda@undp.org
Figure-5: Foundation Detail with
Plinth Band in Brick or,
Concrete Block Masonry
Prepared under the GoI – UNDP Disaster Risk Management Programme