W-beam systems utilize end-terminal anchorages to develop tension upstream and downstream of an impact event. However, the capacities of the anchorage components under impact loading are not well known. One such W-beam end anchorage system, the Midwest guardrail system (MGS) trailing-end anchorage, was evaluated using three dynamic component tests _ a soil foundation tube pull test, a breakaway...

Article shows shear tests results for anchorage using bent foundation bolts 16, 24 and 36 mm in diameter torque-controlled undercut anchors 12, 16 20 diameter. Load-displacement diagrams were acquired loads static dynamic cyclic uncracked cracked concrete. Cyclic loading pattern simulated seismic on anchors. Shear allowed to estimate influence of cracks strength ductility anchorage.

Large deformation causing damage due to uplift force is generated in buried pipeline located in shallow trenches in marshes and saturated soils. In this paper, existing common methods of pipeline anchorage are discussed and considering advantages and disadvantages of these methods, a new method of pipeline anchorage are studied and presented. In this new developed method, geo-textile materials ...

The fatigue test system is the main equipment to load performance of anchorage, but for a long time, due lack calibration basis and effective traceability way, it unable calibrate equipment. This paper analyzes structure working principle system, determines its measurement technical indicators requirements through investigation verification. method static force value studied verified by experim...

 Abstract Reports have shown that molars can be distalized successfully with virtually no orthodontic anchorage loss with an intraosseous anchorage, even with fully erupted second molars. The purpose of this study was evaluating the effects of mini-screws as skeletal anchorage for upper molar distalization. In this case series, three patients needing maxillary first molar distalization,...

Abstract The paper shows the results of an experimental campaign aimed at investigating cyclic behavior a column-to-foundation joint for precast concrete elements. tested connection is realized adopting corrugated steel ducts embedded into foundation, in which column protruding rebars are anchored by grouting high performance mortar. program consists testing six full-scale reinforced square-sec...

INTRODUCTION The objective of this 3-arm parallel randomized clinical trial was to compare the effectiveness of temporary anchorage devices (TADs), Nance button palatal arches, and headgear for anchorage supplementation in the treatment of patients with malocclusions that required maximum anchorage. This trial was conducted between August 2008 and February 2013 in 2 orthodontic departments in t...

This paper presents a research study about timber shear walls, with materials commercially available in Costa Rica. With new developments engineered timber, the Rican Seismic Code included chapter on structures, defining diaphragms and walls as part of lateral resisting system. A was then carried out, objective determining structural behavior typical wall. Twelve specimens were constructed test...