This book has been written by a group of authors drawn from western europe, the usa and japan. For timber structures en 19981 distinguishes between dissipative and low dissipative structural behaviour as for concrete, steel and. The following documents shall be used as specified in this chapter. In spite of this fact knowledge of the behaviour of such systems is. Cleaning of concrete masonry 1 design considerations 2 1. Types of cracks in concrete structures the constructor.
Besides being a medic, he loves blogging, and he always strives hard to share the highquality content with others. Experimental results of bond tests on concrete, reinforced concrete and masonry are described, evidencing problems due to the setup assessment, especially for stone blocks. We show you how to install lightduty, mediumduty and heavyduty fasteners. Buildings use a variety of connectors including anchors, wall ties and fasteners. Instructional material complementing fema p1051, design examples design of masonry structures 11 within each cementitious system, mortar is specified by type m a s o n w o r k. Design of masonry structures download online ebook pdf now. Design of masonry structures, third edition of load. Repairingstrengthening means to increase one or more than.
Introduction clay brick masonry building is the most likely used type of structural system on. Building code requirements for masonry structures ciii code and commentary, ciii building code requirements for masonry structures tms 402xxaci 530xxasce 5xx synopsis this code covers the design and construction of masonry structures. Fastenings to reinforced concrete and masonry structures. Masonry is the building of structures from individual units, which are often laid in and bound.
Fastenings to concrete and masonry structures source of. Strengthening of masonry structures american concrete institute. The work simpson strongtie does in its labs helps determine how structures are built, as engineers and architects look to the results generated in the labs to help determine speci. Basics of concrete repair and structural strengthening. Although the development is expected to include a broad range of. An assemblage of masonry units properly bonded together with mortar.
Empirical design is often used to design concrete masonry foundation walls due to its simplicity and history of successful performance. Mortar is the glue that holds the masonry units together. Embedment depth is measured from the outside face of the concrete masonry unit. Section 04232 reinforced concrete block masonry city of san. When a powderactuated fastener is driven into concrete masonry, the. The distinction between the these types of connectors can be confusing. Solve your concrete fastening problems with our favorite concrete anchors. Design of masonry structures for accidental damage. Concrete masonry units a concrete masonry unit is a preformed building unit of rectangular shape that is intended for use in the construction of bonded masonry walling. The house is the first in a 36unit development, which is planned to be completely madeup of concrete masonry homes. Reinforced concrete and masonry structures internet archive.
Macgillivray masonry and general contractors constructed a concrete masonry house in springfield, ohio, which is located approximately 40 miles west of columbus. Tyrell gilb research laboratory, stockton, california, u. Unless otherwise noted, the information is based on the 2003 international building code ibc ref. In spite of this fact knowledge of the behaviour of such systems is very limited and there is no generally accepted design method. The use of drystacked columns of interlocking modular con crete units as the facing treatment for geosyntheticreinforced soil retaining wall structures has increased dramatically in recent years. The design of elements under compression, shear and lateral load is discussed, as are reinforced and prestressed members and masonry walls acting compositely with reinforced concrete or steel structures. Cismidficuni construction of masonry buildings with appropriated technologies 1 the construction of a masonry house 1. The strength of concrete is measured in poundspersquareinch. Structural cracks are those which result from incorrect design, faulty construction or overloading and these may endanger the safety of a building and their inmates. For masonry design and construction, the ibc references building code requirements for masonry structures and speci. Pdf strengthening of masonry structures with frp composites.
Specifications for reinforcement and accessory metals used in the construction of masonry walls is provided by international building code ibc 2009 and building requirements and specification for masonry structures aci 530. How to choose and use concrete fasteners, masonry screws. Use masonry of higher strength applicable only if vertical condition is not met use reinforced masonry ditto design strengthening pillars design reinforced concrete basement choose one of the measures if your wall doesnt meet the criteria. Concrete masonry structures cleaning and mantenance 1 contents part a. The aims of the book are to compile and compare published research on the behaviour of fastening systems, propose a consistent approach to the design of fastenings based on current empirical and theoretical models and develop design methods that account for the effects of fastenings and the loads.
Comply with referenced standards and other requirements indicated below applicable to each form of concrete masonry unit required. Design of reinforced concrete 10th edition pdf free. Prior to positioning the waterproofing membrane, sliding elements are positioned. Reinforced concrete and masonry structures by hool, george a. Compiling and comparing published research on the behaviour of fastening systems. Masonry structures seismic design of reinforced concrete. Review of ncma segmental retaining wall design manual for. Strengthening of masonry structures aci spring 2011 convention april 3 7, tampa, fl aci web sessions lawrence c. A concrete block, cement block, foundation block or concrete masonry unit cmu, is a large rectangular block used primarily in the construction of walls. Values for 8inch wide concrete masonry units cmu with a minimum specified compressive strength of masonry, f m, at 28 days is 1500 psi. Fastenings to reinforced concrete and masonry structures vol. Masonry reinforcement and accessory metals for wall construction.
General rules for reinforced and unreinforced masonry structures authority. It is either solid or hollow and formed from a mixture of cement, aggregate and water. The second edition of this book offers the most comprehensive treatment of structural masonry currently available. Simpson strongtie anchor systems manufactures a full array of anchoring and fastening products for concrete and masonry including adhesives for anchoring threaded rod and rebar, mechanical anchors, powder and gasactuated fastening systems and accessories. Non structural cracks occur mostly due to internally induced stresses in building materials. Frcm, masonry structures, cementitious matrix, aci549.
Mechanical anchors for concrete expansion and threaded anchors used for anchoring and fastening to concrete, masonry and lighter duty base materials. Several products are available in different materials and finishes for corrosive environments. Us6619879b1 method and device for the waterproofing of. Provide special shapes where required for lintels, corners, jambs, sash, control joints. Dropin dia design information concrete allowable tension and shear loads for 38 and 1.
Eurocode 8 timber and masonry structures eurocodes. The contents include consideration of the basic concepts of stability and safety of masonry structures, the strength of masonry materials in compression, shear and flexure, followed by chapters on composite action, accidental. Since the types of units, mortars, and construction methods changed during this time, knowing the age of a masonry building may be useful in identifying the characteristics of its construction. The bs en1504 series represents an opportunity to further improve concrete repair practice in the continent and present a challenge to the industry as it adapts to the new standards. Studies related to the effect of previous earthquakes on these types of construction revealed that masonry structures are more prone to damage than reinforced concrete structures or metal ones. Modern fastening techniques are increasingly being used to transfer loads into concrete and masonry structures. Concrete a solid base material that is made from cement, sand, gravel and water. Category mechanical systems and components for general use fasteners other fasteners construction materials and building structures of buildings concrete structures. Anchoring and fastening systems for concrete and masonry. Loadbearing wall systems of any construction type can and should be considered as part of. When referring to the nds, aci318, or aci530, the chapter identifies. Bank, aci member and professor in the department of civil and environmental engineering at the university of wisconsin in madison.
Under one brandunified in our mission and committed to the customer for more than 55 years, simpson strongtie has continuously worked toward helping our customers succeed by providing innovative products, fullservice engineering and field support. Aci 315 details and detailing of concrete reinforcement. This revised edition of the stateofart report published first in former bulletins 206207 has been written by a task group of eminent authors from western europe, canada, the usa and japan with the specific aim of compiling and comparing published research on the. Behavior, seismic upgrading, strengthening, repair, unreinforced masonry. William spaulding publication date 1924 topics reinforced concrete, concrete construction publisher. Aci 530asce 5tms 402 building code requirements for masonry structures aci 53002asce 502tms 40202, american concrete instituteamerican. Online study material, lecturing notes, assignment, reference, wiki and important questions and answers. He has tested numerous structures, such as bridges, buildings, parking garages, culverts, sports facilities, and treatment plants using various ndt techniques. An example of a completed project is illustrated in figure 1.
Astm c 90 standard specification for loadbearing concrete masonry units. Types of cracks in concrete structures are structural cracks and nonstructural cracks. The broad term connector is defined as a mechanical device for securing two or more pieces, parts, or members together, including anchors, wall ties, and fasteners refs. Fastenings to concrete and masonry structures, comite eurointernational du breton. State of the art report comite eurointernational du breton on. The user should carefully evaluate the effects of all structural and nonstructural environmental loads, and the masonry should be designed, and the appropriate. Most insulated buildings that utilize concrete block, brick, adobe, stone, veneers or some combination. The aim of this guide is to assist designers of concrete basements of modest depth, i. These structural eurocodes comprise a group of standards. Design of reinforced concrete and brick masonry structures ce6601.
Concrete basements this guide covers the design and construction of reinforced concrete basements and is in accordance with the eurocodes. It is written in such form that it may be adopted by reference in a legally adopted building code. Standard terminology for anchors and fasteners in concrete. Design example of a slender masonry cantilever wall.
In this video, scott wadsworth shares close to a dozen methods for attaching structures to concrete foundations. See section 04 22 00 for the specifications for concrete masonry units. Existing masonry and reinforced concrete structures are characterized by a wide use of structural and nonstructural masonry members such as structural walls, infill walls, arches, vaults etc. The national concrete masonry association is a registered provider with the american institute of architects aiaces and landscape architecture laces continuing education systems. As the volume proportion of portland cement increases. Strengthening and repair of unreinforced masonry structures. A method for the waterproofing of joints andor cracks in the upstream face of dams, other hydraulic works and concrete or masonry structures. Watch the video to learn all of the fasteners that scott recommends as well as some. Astm a615 a615m standard specification for deformed and plain carbonsteel bars for concrete reinforcement. Highrise masonry buildings are usually built on a reinforced concrete raft of about 600mm thickness. Nondestructive evaluation and repair of concrete masonry unit. Type k to type m, increasing volume of portland cement. A waterproofing membrane includes a strip of elastically yielding synthetic material that is fastened to the surface to be protected along the whole joint andor crack.
Find 9780727725585 design of fastenings in concrete. Nde techniques for concrete and masonry structures. It will also prove relevant to designers of other underground structures. Table 1 lists the allowable backfill heights for 8, 10 and 12inch 203, 254 and 305 mm concrete masonry foundation. The european union per regulation 3052011, directive 9834ec, directive 200418ec. Fastenings to concrete and masonry structures pdf n216. The theoretical basis and experimental requirements of each technique are first described. Section 04232 reinforced concrete block masonry city of san diego, cwp guidelines. Design of reinforced concrete 10th edition pdf free download. Anchoring, fastening and restoration systems for concrete. Design of masonry structures, third edition of load bearing. Next the author gives a detailed description of the british and european codes.
The ca2018 is a 260page comprehensive products and information catalog for the anchoring, fastening and restoration systems products for concrete and masonry. Nde techniques for detection of induced damage and characterization of retrofit and strengthening schemes are included. Second, the long existence of many masonry structures yields several unknowns. Design of reinforced concrete and brick masonry structures. Generally, masonry structures are designed for normal loadings, but it is possible that masonry building subjected to abnormal loading conditions and commonly masonry structure is not designed to accommodate such unusual loadings. Out of this group, you can pick the one that best solves your fastening problem. The units are made in a range of sizes, shapes, colours, textures and profiles and are. As 3700 masonry structures standard has great significance in building construction, and it is likely that changes that have been approved by the bd004 standards committee will remove several barriers to the use of masonry. A guide to concrete repair the standards apply across the 25 member states of the eu as well as switzerland, norway, and iceland. Seismic assessment strategies for masonry structures core. Individual units, such as brick, tile, stone or concrete block, which are bonded together with mortar to form a masonry element such as walls, columns, piers, buttress, etc.
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