The Sacrificial Anode Cathodic Protection of Reinforced Concrete Structure in the Splash Zone

2014 ◽  
Vol 556-562 ◽  
pp. 973-976
Author(s):  
Sen Lin Li ◽  
Jie Zhao
Keyword(s):  
Reinforced Concrete ◽  
Concrete Structure ◽  
Material Selection ◽  
Steel Structure ◽  
Chloride Ion ◽  
Splash Zone ◽  
Sacrificial Anode ◽  
Reinforced Concrete Structure ◽  
Engineering Structures ◽  
Marine Engineering

Corrosion of reinforced concrete structure in the marine environment is easily happened because of the influence of chloride ion, and the corrosion in the splash zone is the most serious. Cathode protection is the most common and effective way in anticorrosion method. For simple steel structure, anticorrosion technology has been basically mature[1].But for some complex marine engineering structures, many key technologies have not been resolved, which constraints the design and construction of such facilities. In this paper, combined the experiments and the research of the model piles of the coal wharf of Rizhao Port, the sacrificial anode protection technology has been introduced and some problems have been solved, such as the relevant operation technologies, parameter design, material selection and so on.

Structural Comparison and Project Cost Analysis on Two Kinds of Frame Structures

2012 ◽  
Vol 193-194 ◽  
pp. 1197-1200
Author(s):  
Zhong Min Liu ◽  
Xue Hua Liu ◽  
Jing Ji
Keyword(s):  
Reinforced Concrete ◽  
Concrete Structure ◽  
Steel Structure ◽  
Development Trend ◽  
Economic Benefits ◽  
System Structure ◽  
Frame Structure ◽  
Reinforced Concrete Structure ◽  
Project Cost ◽  
Advantages And Disadvantages

This article introduces two kinds of frame structure system structure for steel structure and reinforced concrete structure, analyzes the similarities and differences in the structural properties, structural occupied area, time limit for a project, project cost and comprehensive economic benefits and other aspects. The advantages and disadvantages of them are analyzed, and the engineering cost is compared and analyzed. Results show that the steel structure has more the advantage than reinforced concrete structure, and it is development trend of factories and high-rise building in the future.

Analysis and Research of the Ductility Performance of the Steel Reinforced Concrete Structure Based on the Filling Technology

2013 ◽  
Vol 273 ◽  
pp. 492-495
Author(s):  
Min Huang
Keyword(s):  
Reinforced Concrete ◽  
Concrete Structure ◽  
Steel Structure ◽  
Structural Safety ◽  
Living Standard ◽  
Reinforced Concrete Structure ◽  
Steel Reinforced Concrete ◽  
Safety Requirements ◽  
Early Damage

At present the reinforced concrete structure is one of the structures widely used. With China's rapid economic development and the improvement of people's living standard, the structural safety requirements are also getting higher and higher. Especially in the design in the structure of the modern housing, the ductility performance of the steel reinforced concrete structure becomes more and more important. This paper put forward the design basis aiming to study the steel structure ductility design, preventing early damage of the member in the role of the earthquake, and avoiding structure system appear undue damage.

Exposure Test of FRP-Reinforced Concrete Structure in Temperate Marine Tide Zone

2012 ◽  
Vol 166-169 ◽  
pp. 538-542
Author(s):  
Ming Jin Chu ◽  
Zhi Juan Sun ◽  
Hui Chen Cui ◽  
Ke Zhang
Keyword(s):  
Reinforced Concrete ◽  
Concrete Structure ◽  
Chloride Ion ◽  
Test Results ◽  
Reinforced Concrete Structure ◽  
Freezing And Thawing ◽  
Concrete Member ◽  
Exposure Test ◽  
Reinforced Concrete Member ◽  
Marine Zone

Through exposure test of FRP-reinforced concrete member in littoral test area of temperate marine zone, the durability and constructional measures of FRP-reinforced concrete structure are investigated. The test results show that FRP shell on the surface of FRP-reinforced concrete member is effective in avoiding wave flush, freezing and thawing damage, preventing chloride ion corrosion and improving durability. On the other hand, reliable measures should be taken to protect concrete structures with no FRP shell on the surface. Based on above, the provided reference for evaluation durability of FRP-reinforced concrete structure, and proper constructional measures for FRP-reinforced concrete structure are presented.

Investigation on Inhibitor Electromigration Anticorrosion Technology for Reinforced Concrete Structure

2009 ◽  
Vol 79-82 ◽  
pp. 1025-1028
Author(s):  
Jun Wu Tang ◽  
Shu Ang Han ◽  
Chang Hong Huang ◽  
Sen Lin Li
Keyword(s):  
Reinforced Concrete ◽  
Concrete Structure ◽  
Polarization Resistance ◽  
Steel Surface ◽  
Chloride Ion ◽  
Passive State ◽  
Reinforced Concrete Structure ◽  
Technical Parameters ◽  
Chloride Removal ◽  
Effective Component

Based on measuring inhibitor effective component N content, chloride removal efficiency and steel polarization resistance, influences of technical parameters of concrete and electric charge amount on the inhibitor electromigration anticorrosion efficiency were described. The results indicated that inhibitor electromigration anticorrosion technology could remove chloride ion, and inhibitor group could move to steel surface so rapidly that corrosive steel could return into passive state, to meet the anticorrosion aim for steel.

scholarly journals Stability analysis of steel frames with semi-rigid connections and rigid zones by using P-Delta effect

2002 ◽  
Vol 24 (1) ◽  
pp. 14-24 ◽  
Author(s):  
Vu Quoc Anh
Keyword(s):  
Reinforced Concrete ◽  
Concrete Structure ◽  
Steel Frames ◽  
Local Buckling ◽  
Steel Structure ◽  
Building Structures ◽  
Reinforced Concrete Structure ◽  
Steel Buildings ◽  
Axial Forces ◽  
Rigid Zones

Comparing with reinforced concrete structure, member rigidity of steel structure is less, and displacement of steel structure is larger than that of reinforced concrete structure, so the secondary moment due to axial force has to be considered, i e., the problem of P-Delta effect. For most building structures, especially tall steel buildings, the P-Delta effect of most concern occurs in the columns due to gravity load, including dead and live load. The column axial forces are compressive, making the structure more flexible against lateral loads. If compressive P-forces are present and are large enough, the structure may buckle. Local buckling of individual members or global buckling of the whole structure is possible. This paper presents the method to analysis stability of steel frames with semi-rigid connections and rigid zones by using P-Delta effect.

scholarly journals Kajian Desain Struktur Beton Bertulang Dengan Struktur Baja (Studi Kasus Pada Pembangunan Gedung H Unitomo)

2019 ◽  
Vol 2 (2) ◽  
pp. 79
Author(s):  
Inggrid Loiza Batak ◽  
Safrin Zuraidah ◽  
Budi Hastono
Keyword(s):  
Reinforced Concrete ◽  
Concrete Structure ◽  
Concrete Structures ◽  
Steel Structure ◽  
Steel Structures ◽  
Seismic Load ◽  
Reinforced Concrete Structures ◽  
Live Load ◽  
Software Modeling ◽  
Reinforced Concrete Structure

Recently, a structure that is generally applied to the construction of multi-storey buildings is reinforced concrete structure. Structural steel is rarely used nowadays, yet in fact, the steel structures are still able to compete with reinforced concrete structures. Therefore, this study aims to determine the exact profile dimensions and the comparison of material prices between steel structures and reinforced concrete structures for columns and beams in redesigning H Building of Dr. Soetomo University, Surabaya. The WF profile steel will be used in this redesigning project. The structure is modeled using AutoCAD, and then imported into SAP2000 software. Modeling structure consists of columns, primary beams and secondary beams. The loads reviewed from the design are dead load, live load, wind load and seismic load. From the results of design review obtained, the overall strength of structure rearrangement is safe and it is obtained the beam profile dimensions of B1 WF 600x200x12x20, B2 WF 400x300x9x14 profile, B3 WF 400x300x9x14 profile, B4 WF 350x200x8x12 profile, and B5 WF 175x125x 5.5x8 profile, K1 WF 400x400x18x28 column profile, and K2 WF 400x400x21x21 column profile. The use of steel structures as a substitute for reinforced concrete structures for columns and beams in the building is a way more expensive with the percentage of steel structure 149.13% more expensive than reinforced concrete structure.

Sign in / Sign up

Export Citation Format

Share Document