نتایج جستجو برای: precast wall

تعداد نتایج: 170824  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علم و صنعت ایران 1380

در این پایان نامه خواص و جنبه های مختلف کربن معرفی و مروری کلی بر روشهای ساخت ، ساختار و خواص انواع مختلف کربن از کربنهای bulk(شامل گرافیت ، گرافیت turbostratic، الیاف کربن، دوده هاو ... ) تا کربنهای نانومقیاس (شامل fullerenes ، کپسولهای نانومقیاس ، کربنهای nanotube و ... ) ارائه می شود. عمده کار متوجه کربنهای nanotube(اعم از multi-wall و single-wall ) است و ساختار ، عیوب شبکه ای و روشهای ساخت ...

Journal: :Civil engineering design 2021

Building in heavy rain is seldom beneficial, but common practice on site. It promotes inaccuracies and impairs the use of modern sensible high-performance materials costs time, since disruption construction frequently causes complicated returns to planning process. Nevertheless, a handcrafted production process still considered one only alternative all buildings are unique thus must be manually...

Journal: :Magazine of Concrete Research 2014

Journal: :IOP Conference Series: Materials Science and Engineering 2022

Abstract Climate change and sea level rise (SLR) represent many challenges for coastal areas such as erosion saltwater intrusion (SWI). This study aims to highlight the effect of climate SLR on Egypt’s northern coasts present appropriate adaptations. A number techniques adapting with have been presented. Two numerical models used simulation PLAXIS 2D-FEST. The results showed that will affect a ...

Journal: :Buildings 2022

With the continuous improvement of building energy-conservation requirements, both traditional concrete external insulation and internal have been unable to meet energy-saving needs. In order demands in new era, precast external-wall-insulation technology should be developed. this study, a bending static test numerical simulation were carried out evaluate influence thickness inner wythe length ...

Journal: :Buildings 2023

An experimental program was implemented to investigate the shear transfer mechanism of carbon-fiber-reinforced polymer (CFRP) grids and expanded polystyrene (EPS) rigid foam insulation in three wythe precast concrete sandwich wall panels. The purpose research measure flow capacity observe failure mode(s) panels manufactured with a CFRP grid between wythes. Six were examined by push-out tests wh...

Journal: :Engineering Structures 2021

In recent past, the authors developed an innovative modular system for low rise building made by structural sandwich panels. This was conceived with focus on rationalization of construction process and thermal efficiency building. Thus, precast panels comprise two outer Steel Fibre Reinforced Self-Compacting Concrete (SFRSCC) layers, a insulation material Glass Polymer (GFRP) connectors. Studie...

2012
L. Rodriguez-Cobo J. A. Polanco A. Quintela I. A. Carrascal J. M. López-Higuera Yanbiao Liao Wei Jin David D. Sampson Ryozo Yamauchi Youngjoo Chung Kentaro Nakamura Yunjiang Rao

The prestressing force is transferred to the concrete during the slack period of precast concrete structures fabrication. To contribute to a better understanding of the armor compliant behaviors during the mentioned process, a custom quasidistributed Bragg Grating optical fiber sensor system is designed, fabricated and embedded into a prestressed concrete prismatic beam. The experimental works,...

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