نتایج جستجو برای: capacity strengthening
تعداد نتایج: 305781 فیلتر نتایج به سال:
The relationship between microstructure and tensile properties of an Nb–Ti microalloyed X90 pipeline steel was studied as a function of finish rolling temperature using a Gleeble 3500 simulator, an optical and scanning electron microscope, electron back scattered diffraction (EBSD), a transmission electron microscope (TEM) and X-ray diffraction. The results indicate that the microstructure is p...
Increasing traffic loads and changes in code provisions lead to deficits in shear and flexural capacity of many existing highway bridges. Therefore, a large number of structures are expected to require refurbishment and strengthening in the future. This projection is based on the current condition of many older road bridges. Different strengthening methods for bridges exist to extend their serv...
Countries’ economic growth and development are significantly dependent on their productive capacity. In this research, we aimed to investigate which components of a knowledge-based economy has a more meaningful role in the production capacity. In order to measure production capacity, we used one of the most up-to-date indexes, the economic complexity index. The research used data panel consist...
The utilization of unbounded external reinforcing bars is one of the strengthening methods used after loading stage and before failure. The method has been used in different forms to strengthen members of reinforced concrete structures. To investigate the effect of utilization of post-tensioned reinforcing bars in this method of strengthening, a number of reinforced concrete beams was tested. S...
The use of heavier trucks demanded upgrading of a twenty-seven year old bridge in Winnipeg, Manitoba, Canada. Analysis of the precast prestressed concrete girders using the current AASHTO Code indicates a deficiency in the shear capacity. Shear strengthening using Carbon Fibre Reinforced Polymer (CFRP) sheets provides a low-cost solution by increasing the speed of construction and reducing traf...
Background and objective This study aims to analyze the network governance of safety and crisis management in Tehran by examining the laws of the fourth development plan and emphasizing the participation of key actors, including government institutions, the private sector, non-governmental organizations, and local communities using social network analysis. Method In this study, 22 laws with 101...
INTRODUCTION Zambia is facing a chronic shortage of health care workers. The paper aimed at understanding how the Medical Education Partnership Initiative (MEPI) program facilitated strengthening and expanding of the national capacity and quality of medical education as well as processes for retaining faculty in Zambia. METHODS Data generated through documentary review, key informant intervie...
This paper summarizes an experimental program supported by an analytical modeling study undertaken to investigate the bond behavior of carbon fiber reinforced polymer (CFRP) materials used for strengthening steel structures. The experimental program consisted of three double-lap shear coupon tests and five large-scale beam tests. Different methods to reduce the bond stress concentrations near t...
This paper presents a fatigue assessment model that was developed for corroded reinforced concrete (RC) beams strengthened using prestressed carbon fiber-reinforced polymer (CFRP) sheets. The proposed model considers the fatigue properties of the constituent materials as well as the section equilibrium. The model provides a rational approach that can be used to explicitly assess the failure mod...
the united states president’s emergency plan for aids relief (pepfar) emphasizes health systems strengthening as a cornerstone of programmatic success. health systems strengthening, among other things, includes effective capacity building for clinical care, administrative management and public health practice. avante zambéziais a district-level in-service training program for administrative sta...
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