2—environment design and construction considerations 2 1— introduction

... coating, p 21 CHAPTER 9—GENERAL DESIGN CONSIDERATIONS, p 21 9.1—Design philosophy, p 21 9.2—Strengthening limits, p 21 9.3—Selection of FRP systems, p 229.4—Design material properties, p 23 CHAPTER ... structural design. Trang 47.2—Evaluation and acceptance, p 19CHAPTER 8—MAINTENANCE AND REPAIR, p 20 8.1—General, p 20 8.2—Inspection and assessment, p 20 8.3—Repair of strengthening system, p 21 8.4—Repair ... 24 10.1—Nominal strength, p 2410.2—Reinforced concrete members, p 2410.3—Prestressed concrete members, p 2910.4—Moment redistribution, p 31 CHAPTER 11—SHEAR STRENGTHENING, p 31 11.1—General considerations,

Ngày tải lên: 03/11/2019, 18:18

... coating, p 21 CHAPTER 9—GENERAL DESIGN CONSIDERATIONS, p 21 9.1—Design philosophy, p 21 9.2—Strengthening limits, p 21 9.3—Selection of FRP systems, p 229.4—Design material properties, p 23 CHAPTER ... structural design. Trang 47.2—Evaluation and acceptance, p 19CHAPTER 8—MAINTENANCE AND REPAIR, p 20 8.1—General, p 20 8.2—Inspection and assessment, p 20 8.3—Repair of strengthening system, p 21 8.4—Repair ... 24 10.1—Nominal strength, p 2410.2—Reinforced concrete members, p 2410.3—Prestressed concrete members, p 2910.4—Moment redistribution, p 31 CHAPTER 11—SHEAR STRENGTHENING, p 31 11.1—General considerations,

Ngày tải lên: 04/11/2019, 08:59

... made between adverse and beneficial loads waterb pressure Wind 1 Dead and imposed (and earth and 3 Dead and imposed and wind (and earth and water pressure) 1.2 1.2 1.2 1.2 1.2 c Unplanned excavation ... 34Fire resistance Minimum beam 0.5 200 125 75 150 125 100 150 100 75 1 200 125 95 200 160 120 150 120 751.5 200 125 110 250 200 140 175 140 100 Trang 35NOTE For the design of deep beams, reference ... following sections and subclauses of this standard and BS 5328: a) durability and constituent materials: 1) chlorides and corrosion of steel (see 4.4.1 and 5.2.2 of BS 5328-1:1997); 2) disruption

Ngày tải lên: 04/11/2019, 09:48

... (6.2a) (6.2b) where fo,,fu are the 0.2% proof stress and tensile strength of parent metal, and foo, fuo are the same in the annealed condition 6.5 EXTENT OF THE SOFTENED ZONE 6.5.1 General considerations ... might beobtained at a single-pass MIG weld on 5083-H22 material Again, regions1 and 2 can be identified In region 1, the hardness is now uniform andcorresponds to the properties of the alloy in ... maximum value British Standard BS.8118 recognizestwo levels of thermal control, normal and strict, as follows: All fabrication should satisfy normal control and this is what a designerwould usually

Ngày tải lên: 22/07/2014, 18:22

... stress of 250 N/mm 2 , ultimate tensile strength approaching 400 N/mm 2 and good ductility. In the full strength T6 condition, the proof and ultimate stress can reach 375 and 450 N/mm 2 respectively, ... alloys such as 6082 and 20 14, with properties in the T4 and T6 conditions comparable to those for other wrought products in those alloys 4. 4 STRESS-STRAIN... sand and 200 kg in permanent ... 5, also appear in structural codes: 5052 (Mg 2.5, Cr 0.2) slightly stronger than 5251; 57 54 (Mg 3.1) intermediate between 5251 and 5154A; 545 4 (Mg 2.7, Mn 0.7, Cr 0.1) similar strength to

Ngày tải lên: 22/07/2014, 18:22

... precautions in the design, construction and use of buildings — Part 5: Code of practice for firefighting stairs and lifts ICS 13.220.01; 91.060.30; 91.140.90 Trang 2This British Standard, having ... NOTE This is not the lift car door. 2.21 lift machine the unit, including the motor, that drives and stops the lift 2.22 lift well space in which the lift and the counterweight (if any) move ... regulations in this code England and Wales: The Building Regulations; Scotland: The Building Standards (Scotland) Regulations; Northern Ireland: The Building Regulations (Northern Ireland) It should be

Ngày tải lên: 28/09/2014, 23:28

... θcos2α–2cosαsinθ θ 2 - sin2θ 4 -+ + α ψ • 2εm K eωt r2tf c′ 1–cosα -S2′ 2 ρt rtf y ψ π ∫ •r(cosα– cosθ)dθ = θcosα–sinθ S3′ 2 r 2(cosθ–cosα)2 r 1( –cosα) -•εm E sρt rtdθ µ α ∫ = 2εm K eωt r2tf ... for earthquake forces from 2.34 to 2.04 is warranted Chimney no Height, ft TOD, ft BOD, ft 1 250 13.50 19.75 2 275 28.00 28.00 3 325 15.00 20.00 4 375 20.00 32.00 5 425 35.00 39.00 6 485 47.67 ... 2εm K eωt r2tf c′ 1–cosα - (cos2θ–2cosθsinα+cos2α) θd µ α ∫ 2εm K eωt r2tf c′ 1–cosα - θ 2 - sin2θ 4 -–2cosαsinθ θcos2α µ α • 2εm K eωt r2tf c′ 1–cosα -S4′ 2 ρt rtf y 0 µ ∫ •r(cosθ–cosα)dθ

Ngày tải lên: 24/10/2014, 15:45

... specifications and calculations Chapter 2—Materials, p 313R-2 R2.2—Cements R2.3—Aggregates R2.5—Admixtures Chapter 3—Construction requirements, p 313R-3 R3.1—Notation R3.2—Concrete quality R3.3—Sampling and ... slipform construction; stacking tubes; stave silo; stresses; structural analy-sis; structural design; thermal stresses; thickness; walls CONTENTS Chapter 1—General, p 313R-2 R1.1—Introduction R1.2—Definitions ... presents some of the considerations and assumptions of ACI Committee 313 in developing the provisions of the Standard Practice for Design and Construction of Concrete Silos and Stacking Tubes for

Ngày tải lên: 24/10/2014, 15:45

... )2 wt u( ) -= 1+5i i+0.10 -+ -= V cr -= 3 2 B 1 2π 1 4 -exp 1 2 - 1 k 1 – B = V cr2 5d u( ) T2 -= 2 d b( ) - ρck E ck - t h( ) t b( ) -0.09 d h( ) d b( ) -0.22 – = T2 0.82•3.2808 ... structural design; temperature; thermal gradient; wind pressure. CONTENTS Chapter 1—General, p 307-2 1.1—Scope 1.2—Drawings 1.3—Regulations 1.4—Reference standards Chapter 2—Materials, p 307-2 2.1—General ... ]0.47 3.2808•h+16 -+ = 2 d b( ) - ρck E ck - t h( ) t b( ) - 0.3 = T1 5.32808 h 2 d b( ) - ρck E ck•1099.2 - t h( ) t b( ) -0.3 = g S s C L 2 -V cr2d u( )h2 π 4(βs+βa) -1 2 ⁄ S p

Ngày tải lên: 24/10/2014, 15:46

... 1.2—Scope1.3—Background1.4—Definitions Chapter 2—Pavement design, p 330R-4 2.1—Introduction2.2—Pavement stresses2.3—Traffic loads2.4—Subgrade support2.5—Concrete properties2.6—Thickness design2.7—Jointing 2.8—Steel reinforcement ... reinforcement in parking lot pavements2.9—Joint filling and sealing 2.10—Pavement grades2.11—Curbs and islands Chapter 3—Materials, p 330R-10 3.1—Introduction3.2—Strength3.3—Durability3.4—Economy3.5—Workability3.6—Material ... Guide 1982) Fine-grained soils in which silt and clay-size Sands and sand-gravel mixtures with moderate amounts of silt and clay Medium 130 to 170 4.5 to 7.5 29 to 41 3.5 to 4.9Sand and sand-gravel

Ngày tải lên: 24/10/2014, 15:47

... specifications, and calculations Chapter 2—Materials, p 313-3 2.1—General 2.2—Cements 2.3—Aggregates 2.4—Water 2.5—Admixtures 2.6—Metal 2.7—Precast concrete staves 2.8—Tests of materials Chapter 3—Construction ... Trang 23.9—Tolerances for slipformed and jumpformed structures Chapter 4—Design, p 313-4 4.1—Notation 4.2—General 4.3—Details and placement of reinforcement 4.4—Loads 4.5—Wall design 4.6—Hopper design ... slipform construction; stacking tubes; stave silos; stresses; structural anal-ysis; structural design; thermal stresses; walls. CONTENTS Chapter 1—General, p 313-2 1.1—Introduction 1.2—Definitions

Ngày tải lên: 24/10/2014, 16:04

... Chapter 1—General, p 373R-97-2 1.1—Introduction1.2—Objective1.3—Scope1.4—History and development1.5—Definitions 1.6—Notation Chapter 2—Materials, p 373R-97-5 2.1—Concrete2.2—Shotcrete and filler ... recommendations of the sup-pliers and ACI 212.3R 2.2—Shotcrete 2.2.1 General—Unless otherwise indicated here, shotcrete should meet ACI 506.2 and the guidelines given in ACI506R 2.2.2 Allowable chlorides—Same ... Section 2.5.2.2 and 3.1.4.2 (e), by shotcrete in accordance with tions 3.1.4.2 (e), 4.2.3.5 and 4.5.3.3, or by epoxy in accor-dance with Section 3.1.4.2 (d) Sec-2.7—Waterstop, bearing pad, and filler

Ngày tải lên: 24/10/2014, 17:26

... Engineers Washington, DC 20 314-1000 CECW-EG EM 1110 -2- 2300 Manual No 1110 -2- 2300 31 July 1994 Engineering and Design EARTH AND ROCK-FILL DAMS—GENERAL DESIGN AND CONSTRUCTION CONSIDERATIONS Purpose ... 1-1 2- 1 2- 1 2- 2 2- 5 2- 5 2- 6 Chapter Field Investigations and Laboratory Testing Geological and Subsurface Explorations and Field Tests 3-1 Laboratory Testing 3 -2 ... EM 1110 -2- 2300, dated 10 May 19 82 DEPARTMENT OF THE ARMY U.S Army Corps of Engineers Washington, DC 20 314-1000 CECW-EG EM 1110 -2- 2300 Manual No 1110 -2- 2300 31 July 1994 Engineering and Design...

Ngày tải lên: 28/04/2014, 11:50

... zinc, making it less suitable for making non-aeronautical alloys 2. 2 FLAT PRODUCTS 2. 2.1 Rolling mill practice Aluminium plate and sheet are manufactured in conventional rolling mills, the main ... decoiled and cut into sheets Plate and sheet widths thus produced are typically about 1.5 m, although greater sizes are possible Copyright 1999 by Taylor & Francis Group All Rights Reserved 2. 2 .2 Plate ... thicknesses are 0.5, 0.6, 0.8, 1.0, 1 .2, 1.5, 2. 0, 2. 5, 3.0, 4.0, 5.0 and 6.0 mm Most sheet is produced in non-heat-treatable material (1xxx, 3xxx, 5xxx), and is supplied in a stated temper (such...

Ngày tải lên: 22/07/2014, 18:22

... Primary production 2. 1 .2 Secondary metal 2. 2 Flat products Copyright 1999 by Taylor & Francis Group All Rights Reserved 2. 3 2. 4 2. 2.1 Rolling mill practice 2. 2 .2 Plate 2. 2.3 Sheet 2. 2.4 Tolerance ... 11.4. 12 Testing of prototype joints 12 Fatigue 12. 1 General description 12. 2 Possible ways of handling fatigue 12. 3 Checking procedure (safe life) 12. 3.1 Constant amplitude loading 12. 3 .2 Variable ... amplitude loading 12. 3.3 Design life 12. 3.4 Stress range 12. 3.5 Stress-range spectrum 12. 4 Representative stress 12. 4.1 Method A 12. 4 .2 Method B 12. 5 Classification of details 12. 5.1 The BS.8118...

Ngày tải lên: 22/07/2014, 18:22

... 20 First-Time Encryption and Rekeying 20 Clustering and Availability 21 HA Cluster 21 Encryption Group 22 DEK Cluster 22 ... with 128 bits, 1 92 bits, and 25 6 bits (AES- 128 , AES-1 92, and AES -25 6 respectively) It was rapidly adopted by the industry Most commercial applications for encryption of data-at-rest use AES -25 6 ... Cluster Encryption Device fig 12_ Encryption_BPG Fabric HA Cluster Cluster LAN Figure 12 HA and DEK clusters Encryption Solution Design and Deployment Considerations 22 of 58 DATA CENTER BEST PRACTICES...

Ngày tải lên: 19/03/2014, 13:33

... seamless 8 .2. 2 Piping Joints 8 .2. 2.1 The number of joints of any type between the vessel and the first block valve shall be minimized 8 .2. 2 .2 Welded joints shall be used where practical 8 .2. 2.3 The ... selected, the system shall include the design features described in 10.3 .2. 2.1 through 10.3 .2. 2.4 DESIGN AND CONSTRUCTION OF LPG INSTALLATIONS 10.3 .2. 2.1 The entire surface of each vessel shall ... (feet) 2, 000-30,000 30,001-70,000 70,001-90,000 90,001- 120 ,000 120 ,00 I or greater 50 75 100 125 20 0 DESIGN AND CONSTRUCTION OF LPG INSTALLATIONS 5.1.3 Siting of Pressurized LPG Tanks and Equipment...

Ngày tải lên: 27/03/2014, 14:08

... Hinklin 2. 1 2. 2 2. 3 2. 4 2. 5 2. 6 2. 7 2. 8 2. 9 2. 10 2. 11 2. 12 2.13 2. 14 2. 15 2. 16 2. 17 2. 18 2. 19 2. 20 2. 21 2. 22 1.1 Professional and Business Requirements of Architectural Engineers / 2. 2 Client ... Section 12 12. 1 12. 2 12. 3 12. 4 12. 5 12. 6 12. 7 12. 8 12. 9 12. 10 12. 11 12. 12 12. 13 12. 14 12. 15 12. 16 12. 17 12. 18 12. 19 12. 20 12. 21 Roof Systems Dave Flickinger ROOF MATERIALS Roof Decks / 12. 1 Vapor ... / 2. 24 Construction Scheduling / 2. 24 Shop Drawing Review / 2. 25 v 2. 1 vi CONTENTS 2. 23 2. 24 2. 25 2. 26 2. 27 2. 28 2. 29 Role of Architect or Engineer During Construction / 2. 26 Testing and Balancing...

Ngày tải lên: 27/06/2014, 22:20

... defined are 60, 50, 42, 35, 29 , 24 , 20 , 17, 14 The class for a given detail may be found by referring to the relevant table, based on BS.8118: Table 12. 2 non-welded details; Table 12. 3 welded details, ... r/b < r/b > K=1 .2 {1+ (1-e-0.7a/r)(1-r/b )2} K=1 .2 ( 12. 2) Other non-linear effects which become significant in fatigue are the secondary stresses in trusses, due to joint fixity, and the effects ... at the point considered (Figure 12. 2) Refer to Sections 12. 3.4 and 12. 4 Rationalize this stress history by reducing it to a set of specific stress ranges (fr1, fr2, fr3, etc.), the number of times...

Ngày tải lên: 22/07/2014, 18:22

... adhesive held at 25 °C Columns and give the room temperature curing time to achieve =1 and =10 N/mm2, when tested at 23 °C Columns and give typical average strengths when tested at 23 °C and 80°C, after ... (per bolt) and on their condition It is given by the expression: – – Pf=nµR (11.9) s g where n=number of friction interfaces and, µ=slip-factor (Section 11 .2. 6) 11 .2. 5 Bolt tension and reaction ... is taken as 0.33, based on the standard surface preparation, alternative values s=1 .2 and 1.33 are given and it is not clear which to use when On the other hand, when is found from tests, BS.8118...

Ngày tải lên: 22/07/2014, 18:22