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DESIGN OF MASONRY STRUCTURES Part 4 ppsx

DESIGN OF MASONRY STRUCTURES Part 4 ppsx

DESIGN OF MASONRY STRUCTURES Part 4 ppsx

... isdifficult to apply them in particular cases in the absence of test results forthe materials being used. 4. 4 .4 Section 4: design of masonry (a) General stabilityInitial provisions of this section call ... determination of the value of the characteristic compressive strength of the masonry (fk) and the thickness of the unit required to support the design loads. Once fk is calculated, suitable types of masonry/ mortarcombinations ... middle fifth of the wall Φm can be determined from Fig. 4. 6using values of hef/tef and emk/t. Figure 4. 6, used in EC6, is equivalentto Fig. 4. 4, used in BS 5628, to obtain values of Φ and...
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DESIGN OF MASONRY STRUCTURES Part 1 ppt

DESIGN OF MASONRY STRUCTURES Part 1 ppt

... properties of masonry 3.6 Effects of workmanship on masonry strength 4 Codes of practice for structural masonry 4. 1 Codes of practice: general 4. 2 The basis and structure of BS 5628: Part 1 4. 3 BS ... strength of reinforced masonry 10 .4 Deflection of reinforced masonry beams10.5 Reinforced masonry columns, using BS 5628: Part 210.6 Reinforced masonry columns, using ENV 1996–1–111 Prestressed masonry 11.1 ... frames9 Design for accidental damage9.1 Introduction9.2 Accidental loading9.3 Likelihood of occurrence of progressive collapse9 .4 Possible methods of design 9.5 Use of ties10 Reinforced masonry 10.1...
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DESIGN OF MASONRY STRUCTURES Part 2 pptx

DESIGN OF MASONRY STRUCTURES Part 2 pptx

... deformation of the mortar in the bed joints of the masonry. 2. The apparent crushing strength of the unit in a standard test is not adirect measure of the strength of the unit in the masonry, since ... situations©20 04 Taylor & FrancisTable 2.7 (Contd)©20 04 Taylor & Francis3 Masonry properties 3.1 GENERALStructural design in masonry requires a clear understanding of thebehaviour of the ... conditions as a result of the presence of small quantities of compounds of silica and alumina. It©20 04 Taylor & Francism intervals as a general rule. However, the length of the panel withoutmovement...
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DESIGN OF MASONRY STRUCTURES Part 3 pdf

DESIGN OF MASONRY STRUCTURES Part 3 pdf

... of construction control will normally apply to reinforced andprestressed work. 4. 3 .4 Section 4: design of reinforced masonry Section 4 is subdivided into paragraphs dealing with the design of elements ... effect of making ß=1 with aminimum eccentricity of 0.05t).The width of the stress block, as shown in Fig. 4. 3, is (4. 4) and the vertical load capacity of the wall is (4. 5) or (4. 6) ... shownin Fig. 4. 4. Fig. 4. 3 Assumed stress block in BS 5628 formula for design vertical loadcapacity.©20 04 Taylor & Francis 4. 2 .4 Section 5: accidental damageThe final section of the code...
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DESIGN OF MASONRY STRUCTURES Part 5 potx

DESIGN OF MASONRY STRUCTURES Part 5 potx

... it.Fig. 7.3 Uplift of the slab at the time of collapse of wall beneath it.©20 04 Taylor & FrancisModification factors for fk • Horizontal cross-sectional area =4. 25×0.1025=0 .44 m2. This is ... the design of masonry structures. The deflection of the wall is given by (6.5) (6.6) where w=total uniformly distributed wind load/unit height, h=height of building, x=distance of section ... are used in practice for analysis and design of rows of plane walls connected by slabs or beams, the analysis of a©20 04 Taylor & FrancisNote that some designers include the above modification...
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DESIGN OF MASONRY STRUCTURES Part 6 doc

DESIGN OF MASONRY STRUCTURES Part 6 doc

... capable of carrying a triangular load of masonry in which the span of the beam represented the base of anequilateral triangle. The method allowed for a proportion of the self-weight of the masonry ... terms of design loads and are tobe compared with the design strengths of the material in compressionand shear. The design of the beam would be carried out in accordancewith the relevant code of ... width.In case of limit state design, the design bending moments per unitwidth in two directions will be (7. 14) (7.15) where wk=characteristic wind load per unit area and ␥f=partial safetyfactor...
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DESIGN OF MASONRY STRUCTURES Part 7 docx

DESIGN OF MASONRY STRUCTURES Part 7 docx

... characteristic strength of the masonry haslimited influence on the design. 10.2.5 Example Design a simply supported brickwork beam of span 4 m and of section215mm×365mm to carry a moment of 24kNm assuming ... developing a degree of ductility and in limitingdamage.10 .4 DEFLECTION OF REINFORCED MASONRY BEAMSThe deflection of a reinforced masonry beam can be calculated in asimilar way to that of a reinforced ... force=20+(5 4) =40 kN tie area= (40 ×103)/250=160mm2 Provide one 15mm bar within 1.2m of edge of floor. Internal tiesAssume Gk=5kN/m2, Qk=1.5kN/m2 and La=4m. Then Ft =40 kN/m width...
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DESIGN OF MASONRY STRUCTURES Part 8 pps

DESIGN OF MASONRY STRUCTURES Part 8 pps

... moment of resistance of the beam. SolutionWe have ©20 04 Taylor & Francissupport only its own weight. The design loads and design assumptionsare given in section 12.2.12.2 BASIS OF DESIGN: ... GLNeglecting openings, etc., we have Gk=3.5×21×10.5+6 4. 8×21×10.5+(12×2.6 4. 25×2.85 +4 2×2 .42 4. 25×2.85+2×21×2.6×2.85+21×2×2×2 .42 ×2.85)×7=17 643 kN12.5 WIND LOADING12.5.1 General stabilityTo ... cross-section of the wall is shown in Fig. 11 .4. Thesecond moment of area is Fig. 11 .4 Section of the diaphragm wall for example 1.©20 04 Taylor & Franciscompressive stress at the base of the...
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DESIGN OF MASONRY STRUCTURES Part 9 doc

DESIGN OF MASONRY STRUCTURES Part 9 doc

... 12.10.©20 04 Taylor & FrancisTable 12.1 (Contd)©20 04 Taylor & FrancisBM at centre of the panel=627.8×(Cpe+CPi)h2×0.1 04 1 .4 =627.8×(1.1+0.2)×(2.85)2×0.1 04 1 .4 =9 64. 6Nm/m (Cpe ... (1.96×102.5×103)/103=201kN/m.12.6 .4 Selection of brick and mortar for inner leaf of wall BThe design vertical load resistance of the wall is (ßtfk)/␥m (clause 32.2.1).The value of ß depends on the eccentricity of loading; ... leaf) 12.6.7 Design of the outer leaf of the cavity wall B in GFLoad combination: • Windward side ©20 04 Taylor & Francis©20 04 Taylor & Francis EC6 allows the use of the value from...
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DESIGN OF MASONRY STRUCTURES Part 10 pps

DESIGN OF MASONRY STRUCTURES Part 10 pps

... infill and steel␥mmpartial safety factor for compressive strength of masonry ␥mspartial safety factor for strength of steel␥mvpartial safety factor for shear strength of masonry εstrain as ... -10°C to +40 °C Overall contraction of wall 30×10×10-6× 24 103=7.2mm Overall expansion of wall 40 ×10×10-6× 24 103=12.8mm The maximum movement at the top of the wall due to the sum of theseeffects ... (mm)d2depth of the centroid of the reinforcement from the leastcomp ressed face (mm)Ecmodulus of elasticity of concrete (kN/mm2)Emmodulus of elasticity of masonry (kN/mm2)Em, Ebmodulus of...
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