Reinforced concrete

Abraham’s cones : Khuôn hình chóp cụt để đo độ sụt bê tông Accelerator, Earlystrength admixture : Phụ gia tăng nhanh hóa cứng bê tông Anchorage length : Chiều dài đoạn neo giữ của cốt thép Arrangement of longitudinales renforcement cut-out: Bố trí các điểm cắt đứt cốt thép dọc của dầm Arrangement of reinforcement : Bố trí cốt thép Bag Beam of constant depth Bedding Bonded tendon Bursting concrete stress : Bao tải (để dưỡng hộ bê tông) : Dầm có chiều cao không đổi : Móng cống : Cốt thép dự ứng lực có dính bám với bê...

21p tanleanhhung 16-08-2012 526 283   Download

This paper presents a sensitivity analysis of key factors influencing the reliability of reinforced concrete columns strengthened with Fabric-Reinforced Cementitious Matrix (FRCM) with carbon fabric. Key parameters examined include axial force, concrete compressive strength, longitudinal reinforcement diameter, and stirrup diameter.

6p vibenya 31-12-2024 0 0   Download

This paper investigates flexural behavior and analytical approach for predicting the load and deflection at critical performance points of reinforced concrete (RC) beams strengthened with prestressed carbon fiber-reinforced polymer (CFRP) sheets. A finite element model is developed to simulate the interaction between the RC beam and the CFRP sheets, capturing key aspects such as failure modes, ultimate load, and mechanical behavior across the three phases of failure.

7p vibenya 31-12-2024 1 0   Download

Detailed objectives of this study are: to analyze the risk of failure and probability of failure of existing reinforced concrete bridges qualitatively and quantitatively; to consider the effects of interactions among various deterioration parameters and among bridge components on system failure; to identify major durability related distress mechanisms of deterioration of reinforced concrete bridges and model the subsequent risk of failure of bridge system;…

163p runthenight07 01-03-2023 9 3   Download

The main focus of this research is the composite comparison of steel fiber, polypropylene fiber and basalt fiber as it is a new category of hybrid fiber reinforcement in high performance high volume flyash concrete. Also many other researchers have studied incorporating individual fibers in high volume flyash concrete to improve the mechanical properties.

165p runthenight04 02-02-2023 6 2   Download

Steel fiber reinforced concrete (SFRC) is a multiple-composite material developed during the early 1970s. In SFRC, short steel fibers are randomly distributed in concrete. Steel fibers can prevent the development of micro-cracks inside the concrete and reduce the expansion and development of the macro-cracks, thus enhance mechanical performance of SFRC. However, there is lack of studies on the influence of flowability of fresh SFRC on the steel fiber distribution patterns and mechanical properties of hardened SFRC.

85p runthenight04 02-02-2023 7 4   Download

To establish the behavior model of the MIs and to employ this model to determine the seismic behavior of infilled frames; to study how to control the failure mechanisms of reinforced concrete (RC) frames under seismic actions, considering the interaction between the frame and the MIs.

27p kequaidan7 01-09-2020 30 2   Download

Determine the coefficient of water permeability, waterproofing marks, chloride ion diffusion coefficients of some types of concrete commonly used in bridge construction subjected to pre-compressive and direct-compression loads. Develop a predictive model for life expectancy using reinforced concrete bridges taking into consideration the effect of the load according to the criteria of initial corrosion of reinforcement in concrete. Application of life expectancy for the structure of reinforced concrete bridges.

27p kequaidan7 01-09-2020 30 2   Download

A new composite material with neutron radiation shielding properties is presented. This fiber reinforced concrete material incorporates basalt-boron fiber, with different concentrations of boron oxide in fiber, and is applicable to nuclear energy and nuclear waste management.

8p christabelhuynh 29-05-2020 17 0   Download

In this research, an investigation was carried out through experimentation and numerical modeling to evaluate the cracking pressure induced due to corrosion of reinforcement for different cover thicknesses, grades of concrete and bar locations.

10p tohitohi 19-05-2020 26 1   Download

This paper presents an investigation into the flexural behaviour of basalt FRP reinforced concrete beams through experimental and analytical methods. To achieve the research objectives, four concrete beams reinforced with steel and four identical concrete beams reinforced with BFRP bars were tested under four-point bending.

16p tohitohi 19-05-2020 12 3   Download

This paper describes laboratory tests on twelve simply-supported one-way slabs including four lightweight concrete slabs in this study and previously conducted experiments on eight self-compacting reinforced concrete slabs subjected to loading at the age of 14 days.

12p tohitohi 19-05-2020 8 0   Download

This paper presents a study on the structural performance of a modified shear-head assembly for edge steel column embedded in reinforced concrete slab. The structural performance was investigated in terms of punching shear capacity of the reinforced concrete flat slab.

12p tohitohi 19-05-2020 19 1   Download

In the present study, the flexural behavior of concrete beams reinforced with longitudinal rebars made of glass fiber reinforced polymer composites (GFRP), is studied using finite element method.

8p tohitohi 19-05-2020 16 0   Download

The use of cement concrete as a stronger and more durable material than asphalt concrete in construction of the pavements has been increased during the past decades. This review paper investigates the effect of various input variables for the design of continuously reinforced concrete pavements.

16p tohitohi 19-05-2020 9 0   Download

The article is devoted to some aspects of research of hostile environment influence on the concrete durability. The mechanism of formation of chaotically diversified difficult structure is described. Chemical interactions of cement with active components of diffusion in steam space are examined.

7p tohitohi 19-05-2020 15 1   Download

Thesis studying deformation stress state of two-layer curved reinforced concrete sloped shell roof under the impact of uniformly distributed load in the period before concrete appeared cracks, in case the shell has constant thickness.

27p bibianh 25-09-2019 30 3   Download

Study on the punching shear capacity of reinforced concrete and prestressed concrete flat slabs with the concrete grade is not greater than B60, no shear stirrup, no slab openings, no consideration of influence of moment at column-slab connections, columns with circle or rectangular section only.

27p dungmaithuy 18-09-2019 29 3   Download

Sàn là kết cấu chịu trực tiếp tải tr ọng sử dụng, hệ sàn được đở bởi hệ dầm, dầm truyền tải lên cột và cột truyền xuống móng. Sàn BTCT (Reinforced concrete floor) được sử dụng rất phổ biến vì những ưu điểm của nó như: chịu lực lớn, chống cháy tốt, độ ổn định lớn,… nhưng sàn BTCT vẫn có những khuyết điểm như: cách âm chưa thật tốt (cần phối hợp với các vật liệu cách âm), thi công phức tạp, trọng lượng bản thân lớn....

4p lthon0089 23-09-2010 1622 454   Download