Design Procedure for Fire-Exposed Preloaded Rectangular RC Columns Strengthened with Post-Compressed Plates

2014 ◽  
Vol 1049-1050 ◽  
pp. 469-473
Author(s):  
Lu Wang ◽  
Ray Kai Leung Su
Keyword(s):  
Experimental Study ◽  
Reinforced Concrete ◽  
Design Method ◽  
Design Procedure ◽  
Building Structures ◽  
Structural Components ◽  
Rc Columns ◽  
Significant Damage ◽  
Concrete Building ◽  
New Type

It is well known that fires can cause significant damage to reinforced concrete building structures. In many cases, fire would only affect some parts of the building. It is therefore more economical and environmentally friendly to repair the fire-exposed structural components rather than to demolish the whole buildings. In this paper, a summary of experimental study of fire-exposed rectangular reinforced concrete (RC) columns repaired with post-compressed plates (PCP) is described. In the meantime, the design method for this new type of PCP repairing fire-exposed RC columns that can ensure proper repairing details for desirable performance is presented.

Design Guidelines of FRP Reinforced Concrete Building Structures

1997 ◽  
Vol 1 (3) ◽  
pp. 90-115 ◽  
Author(s):  
Yasuhisa Sonobe ◽  
Hiroshi Fukuyama ◽  
Tadashi Okamoto ◽  
Nagahide Kani ◽  
Kouzou Kimura ◽  
...  
Keyword(s):  
Reinforced Concrete ◽  
Design Guidelines ◽  
Building Structures ◽  
Reinforced Concrete Building ◽  
Concrete Building

MODEL BIAYA TIDAK LANGSUNG PROYEK STRUKTUR GEDUNG BETON BERTULANG

1970 ◽  
Author(s):  
I Ketut Nudja S ◽  
I N. Sutarja ◽  
Mayun Nadiasa
Keyword(s):  
Reinforced Concrete ◽  
Indirect Cost ◽  
Cost Model ◽  
Linear Regression Analysis ◽  
Indirect Costs ◽  
Direct Costs ◽  
Accounting System ◽  
Building Structures ◽  
Reinforced Concrete Building ◽  
Concrete Building

The cost of the project itself , in line with the accounting system which consists of direct costs and indirect costs . Contractor in determining competitive bidding strategy, should propose a cost which include estimate real cost plus mark up . Based on observations at PT. Sarana Bangun Ragam Cipta, a contractor company , found that the company does not  follow the rules mentioned above, Besides that the book keeping system for the project cost has not implemented a financial accounting system properly , so that the  proportion of direct costs and indirect costs of each project is un know. It required a study to be conducted to  determine the proportion of direct costs to indirect costs and indirect cost model. Quantitative research was conducted on the 12 (twelve ) project of  reinforced concrete building structures using two (2 ) independent variables , namely the direct costs ( X1 ) and duration ( X2 ) and 1 ( one ) dependent variable , ie indirect costs (? ) . Descriptive analysis to determine the proportion of indirect costs to direct costs . Analysis of data using multiple linear regression analysis to determine the indirect cost model of reinforced concrete building structures projects. From analysis found the average proportion of indirect costs to direct cost was 8.50 % , meanwhile  indirect cost model is ? = - 1.462E7 + 0.056 ( X1 ) + 558,775.937 ( X2 ) , where : ? = Indirect costs ( Rp . ) , X1 = direct costs (Rp .) , X2 = Duration ( days ) . The proportion of indirect costs can be used to calculate indirect costs = 0.085 x direct costs and the above model can also be used to predict the value of ? with accuracy 90% or at ? (±) 0.10, if the values ??of X1 and X2 is know on popolation where the data is taken

Composite design method for masonry walls on concrete beams

1983 ◽  
Vol 10 (3) ◽  
pp. 337-349 ◽  
Author(s):  
B. Stafford Smith ◽  
L. Pradolin
Keyword(s):  
Reinforced Concrete ◽  
Concrete Beams ◽  
Design Method ◽  
Design Procedure ◽  
Bending Moment ◽  
Reinforced Concrete Beam ◽  
Masonry Wall ◽  
Reinforced Concrete Beams ◽  
Steel Beams ◽  
Arch Action

This paper describes a design method for structures consisting of a vertically loaded masonry wall supported by a reinforced concrete beam, taking account of the composite tied-arch action of the wall and beam. Experimental results have shown that the behaviour of walls on reinforced concrete beams is similar enough to that of walls on steel beams to allow the development of a design procedure for the former using similar principles to that for walls on steel beams. Therefore, the design approach is based on the assumption of triangular distributions of vertical stress at the wall–beam interface, where the length of the distributions are a function of the beam-to-wall relative stiffness. In the design method the beam flexural stiffness is designed to give an adequate distribution of the interface stress so that the maximum stress in the wall does not exceed allowable limits. The beam is also designed with flexural and shear reinforcement sufficient to resist the bending moment, tie force, and shear forces applied by the normal and shear interface loading. Experimental evidence as well as analytical results are cited to support the assumptions and the resulting design method.

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