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Showing 1 to 20 of 225 for “"Anchorage"”.
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Anchorage bond in concrete bases
… of tests were performed to investigate the anchorage bond stresses in concrete bases. In Series I to IV concrete base specimens were loaded and column starter bar strains measured for different supporting conditions of the base. Curves indicating the distribution of steel compressive …
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ANCHORAGE OF HEADED REINFORCING BARS IN CONCRETE
… serve as a viable alternative to hooked bars for anchorage in concrete because they provide a more efficient anchorage mechanism and limit congestion of the reinforcement. This study is part of a comprehensive study of the anchorage behavior of the headed bars. The work described in this report …
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The role of anchorage in cell cycle control
… cells generally require both mitogens and anchorage signals in order to proliferate. Failure to receive these signals results in either cell-cycle arrest or cell death, known as anoikis, due to activation of anchorage-dependent checkpoint mechanisms. Transformed cells alleviate these …
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Town Square, Anchorage : public park or festival market
Thesis: M.C.P., Massachusetts Institute of Technology, Department of Urban Studies and Planning, 1984
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An experimental study of hook anchorage for reinforcing bars
Thesis (B.S.)--Michigan State College of Agriculture and Applied Science, 1939
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STABILITY OF TEMPORARY ANCHORAGE DEVICES IN VARYING PORCINE BONE DENSITIES
… and mandible. Orthodontists place Temporary Anchorage Devices (TADs) in all parts, guided by bone porosity and intra-oral location. These decisions may influence TAD stability, defined as the amount of interlocking between the TAD and bone immediately after insertion. The aim of the study was …
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Root Surface Area Related to Anchorage in the Begg Technique
… depends upon a complete understanding of the anchorage available in the structures that are to be modified.</p> <p>Fogel and Magill<sup>3</sup> observed that the proper utilization of the extraction space was such an important endeavor that the success or failure of treatment depended upon it. …
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A study of anchorage capacities of confined bent-bar reinforcement
Some of the factors which influence the anchorage capacities of bent deformed reinforcing bars in joints of reinforced concrete structures were examined. Ten full scale specimens simulating an exterior beam-column joint in a structure were tested in order to evaluate the anchorage capacity of the …
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Glass curtain wall and anchorage system response under blast loading
… analyses of CW materials, components, anchorage systems, and the entire structure to predict their performance under blast loads. An extensive experimental investigation was conducted on seven different cured and uncured polymeric LG interlayers to evaluate their quasi-static and …
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Analysis and Control of Anchorage-Zone Cracking in Prestressed Concrete
Made available in DSpace on 2014-12-08T23:56:50Z (GMT). No. of bitstreams: 1 6706773.pdf: 7050641 bytes, checksum: 7f724152f0a863c87e407ebf60abd3de (MD5) Previous issue date: 1966
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Orthodontic Treatment of Anterior Open-bite With and Without Skeletal Anchorage
… in patients treated with and without skeletal anchorage in growing versus non-growing individuals. The purpose of this study is to compare outcomes of AOB treatment with fixed appliances only (non-TADs) to treatment with fixed appliances in conjunction with TADs. Effects of growth and open-bite …
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Anchorage Zone Design for Pretensioned Bulb-Tee Bridge Girders in Virginia
… of Virginia develop cracks within the anchorage zone region. The lengths and widths of these cracks range from acceptable to poor and in need of repair. Field observations also indicate deeper cross sections, very heavily prestressed sections, and girders with lightweight concrete tend …
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Performance and Design of Anchorage Zones for Post-Tensioned Box Girder Bridges
… form of bridge construction. The post-tensioning anchorage zone is the location where very large prestressing forces are applied to the box girder, and then spread into the box section. The spreading of the large compressive forces creates transverse tension forces that must be considered in …
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Quasi-isolated highway bridges: influence of bearing anchorage strength on seismic performance
… research focused on the potential for bearing anchorage capacity to calibrate bridge response in the longitudinal and transverse directions. A suite of 24 bridges was created with variables that included superstructure type, pier height, and anchorage strength. A set of ten synthetic ground …
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Ultimate Bearing Strength of Post-tensioned Local Anchorage Zones in Lightweight Concrete
Currently, NCHRP Report 356 has published an equation to estimate the ultimate strength of the local zone in normal weight concrete. The local zone is the area of concrete directly ahead of the bearing plate. The equation can be broken into two distinct parts: unconfined bearing strength of …
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Experimental investigations of anchorage capacity of precast concrete bridge barrier for Performance Level 2
… were deemed obligatory. In particular, the anchorage capacity of the parapet under the CHBDC design load warrants verification. A finite element model of the barrier was developed in ANSYS to study its structural response. Static testing of a set of barriers was carried out at the University …
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A Comparison of the Nance Holding Arch and Kloehn Headgear in Maxilliary Molar Anchorage
… adult, were evaluated for maxillary molar anchorage loss during cuspid retraction. The Nance Holding Arch and Kloehn cervical headgear were compared as anchorage devices. A control group received no anchorage mechanics during cuspid retraction. All cuspids were retracted with Hilger's loop …
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Development of Prediction Methods for the Lateral Anchorage Requirements in Metal Building Roof Systems
… to roof configurations with multiple points of anchorage. A new method has been developed that builds on the previous research and accurately addresses roof slope as well as the use of multiple anchorage devices of finite stiffness. The development of this method relied on a stiffness model, …
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Linear and Nonlinear Finite Element Analyses of Anchorage Zones in Post-Tensioned Concrete Structures
… are used for the investigation of rectangular anchorage zones with the presence of a support reaction. The investigation is conducted based on four load configurations consisting of concentric, inclined concentric, eccentric, and inclined eccentric loads. The method of model construction is …
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