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Tuesday, August 4, 2020 | History

2 edition of Some aspects of the behaviour of glued joints in pre-cast concrete structural members. found in the catalog.

Some aspects of the behaviour of glued joints in pre-cast concrete structural members.

I. Robb

Some aspects of the behaviour of glued joints in pre-cast concrete structural members.

by I. Robb

  • 177 Want to read
  • 9 Currently reading

Published by University of Salford in Salford .
Written in English


Edition Notes

MSc thesis, Civil Engineering.

ID Numbers
Open LibraryOL20904107M

Both cold-weather and hot-weather epoxy types were used to join the specimens. In addition to the experimental testing, finite-element analysis was also used to model the static response of the joint specimens. The observed failure mode of all shear-key specimens was fracture of concrete along the joint with shearing of the key. A structural component that's becoming a substitute for reinforcing steel. It has many benefits over Steel in that it eliminates the need for corrosion protection which in effect reduces the amount of concrete needed to over it, it has lower thermal connective, higher tensile strength/stiffness and it can placed in innovate ways that integrate it well into the concrete.

true at the joints between precast concrete members. Joint failure is perhaps the most significant repair and maintenance issue in precast concrete parking structures. Without properly designed and installed joint sealants, the inherent durability of precast concrete will not be realized. A properly sealed joint is the result of successful. The width of a concrete slab control joint is the same as the control joint insert (1/4' to 1/2" in width) or of the vee-trowel (about 3/8" wide), or of the saw blade used to make the cut after the concrete has hardened - typically about 1/8". In concrete roof slabs using lightweight concrete such as Perlite(R), control joints may be specified.

• Proportion your members that have these properties. Allowable Stress Design • As an alternate to the strength design method, members may be proportioned so that stresses in the steel and concrete resulting from normal service loads are within specified limits (an allowable, or permissible, stress or load). These limits, known as. High Concrete Group LLC has introduced ThinCastTM, the thinnest precast concrete rainscreen panel available on the market. Designed for use in commercial, institutional, retail, and low- to high-rise construction, this innovation provides architects with the natural beauty and character of concrete in lightweight panels that accomplish their.


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Some aspects of the behaviour of glued joints in pre-cast concrete structural members by I. Robb Download PDF EPUB FB2

A review of existing literature on epoxy concrete (in which glue is used in place of cement) and on the use of epoxy and polyester resins for joints in concrete shows that joints stronger than the concrete can be made but that poor surface preparation leads to a serious loss of strength.

There is little information on the creep of joints under shear stress. The American Concrete Institute. Founded in and headquartered in Farmington Hills, Michigan, USA, the American Concrete Institute is a leading authority and resource worldwide for the development, dissemination, and adoption of its consensus-based standards, technical resources, educational programs, and proven expertise for individuals and organizations involved in concrete design.

Definition of Joint & Connection Within a “connection”, there may be severalloadtransferring“joints”. A “joint” is action of forces (Compression, Tension, Shear).

The main chapters on this book deals with the analysis and design of prestressed concrete building members, either in therotical side of view or in analytical step-by-step procedures to enable.

Tietz (Associate-Member) referred to some tests carried out on polyester resins, not unfortunately under conditions as well controlled as in Mr.

Johnson's tests, nor numerous enough in some cases to draw any final conclusions. On the other hand he considered that they were indicative. glued line and the reduction of the carrying capacity of these joints. MATERIAL AND METHODS Description of static test samples For testing, sets comprised of 10 test samples were assembled.

To determine the real behaviour and carrying capacity of joints, testing samples with structural dimensions of ×× mm were assembled. used to form corner joints.

Glued laminated timber beams, I-joist and Light structural members are normally As a result the grading of timber for Aspects of material behaviour 3 structural. epoxy glue joints in precast concrete segmental bridge construction. Authors: AJ MORETON, DC DALTON, DW SMITH Source: Proceedings of the Institution of Civil Engineers, Vol Issue 4, 1 Nov (–).

give some examples of pre cast concrete structural units. floor/roof slabs, beams, girders, collums, wall panels. how do non-pre-stressed structural units differ from pre tensioned units.

non- is prepared and refinanced like cast in place concrete pre- these are subject to forces before the concrete is placed. The Connection is the most important aspect of precast concrete structures. The connection transfers force between the precast components, determine strength, stiffness, and ductility of the whole.

In the design and analysis of reinforced concrete members, “The mechanics of members consisting of two materials.” To compound this problem, one of the materials (concrete) behaves differently in tension than in compression, and may be considered to be either elastic or inelastic, if it is not neglected entirely.

Joint designs play a pivotal role in ensuring concrete components act as one. By Mike R. Miller, Jim Westhoff and Pardeep Sharma Mike R. Miller is the international sales manager for Press-Seal Gasket Corp. in Fort Wayne, Ind.; Jim Westhoff is president of A-Lok Products Inc.

in Tullytown, Pa.; and Pardeep Sharma is a product engineering/technical services manager with Hamilton kent in Toronto. What are joints and connections in Precast concrete buildings Joints A joint is an designedly gap between adjoining elements or between an element and some other portion of the structure where the action of forces takes place (e.g.

Compression, Tension and Shear etc). Joints may be horizontal, vertical or inclined. The structural properties were examined using beams made up of five mm concrete cubes glued together and tested in bending for rupture, deflexion and long term creep. Curing characteristics were examined in conjunction with the field application of the glue by testing tell-tale metal strips bonded with glue sampled from joints and cured.

'The Effects of Seismic Events on the Behaviour of Semi-Rigid Joint Timber Structures -A Simulation of the Influence of Structural Scheme and of Joint Characteristic", Proceedings of the What is pre cast concrete. Automated system, much more consistent and quality. Panels, slabs, beams, complex shapes.

control joints, construction joints, expansion joints, and isolation joints. Major framework of structure, bears majority of load, and primary members of structural systems. In this video, we get to understand the various kinds of connections which are possible when precast concrete elements are used.

The jointing determines the success of the structural. George C. Wang, in The Utilization of Slag in Civil Infrastructure Construction, Practical use. A concrete structure that incorporated black steel slag was constructed as the foundation for the Kubik building laboratory.

The results set out in this study cover the dosage phases of the steel slag aggregate concrete, with volumes of over 75% black slag. prestressed concrete - structural members made of ordinary concrete, with concrete tensile stresses or with limited concrete tensile stresses: din behaviour of building materials and components in fire - fire barriers, barriers in lift wells and against fire resistant glazings - definitions, requirements and tests: din erations, aspects of joint behavior which control stresses and deformations in the bond layer are de-scribed, including both shear stresses and transverse normal stresses which are customarily referred to as "peel" stresses when they are tensile.

Finally, some principles for finite element analysis of bonded joints are described. Joints are commonly spaced at distances equal to 24 to 30 times the slab thickness. Joint spacing that is greater than 15 feet require the use of load transfer devices (dowels or diamond plates). Figure 1a: Joint Spacing in Meters.

Figure 1b: Joint Spacing in Feet Contraction joints may be tooled into the concrete surface at the time of placement.The structural performance of glued-in rebar timber joints is significantly governed by the bond behaviour between timber and glued-in rebar with adhesives, and actually, the effectiveness of the.A.

Pizzi, C.C. Ibeh, in Handbook of Thermoset Plastics (Third Edition), Resorcinol Adhesives. Resorcinol–formaldehyde (RF) and phenol–resorcinol–formaldehyde (PRF) cold-setting adhesives are used primarily in the manufacture of structural, exterior-grade glulam, finger joints, and other exterior timber produce bonds not only of high strength, but also of outstanding.