scholarly journals STUDY ON THE STRUCTURE OF HIGH-RISE REINFORCED CONCRETE BUILDINGS : Tests of Steel and Reinforced Concrete Frames and Shear Walls with Braces Using Artificial Lightweight Aggregate

1966 ◽  
Vol 119 (0) ◽  
pp. 10-21,77
Author(s):  
Hidetaka OKA ◽  
Hiroyuki AOYAMA
Keyword(s):  
Reinforced Concrete ◽  
Shear Walls ◽  
Lightweight Aggregate ◽  
Reinforced Concrete Buildings ◽  
Concrete Frames ◽  
Reinforced Concrete Frames ◽  
Concrete Buildings ◽  
High Rise

scholarly journals A Practical Compensation Method for Differential Column Shortenings in High-rise Reinforced Concrete Buildings

2020 ◽  
Author(s):  
Mutlu Secer ◽  
Amanullah Zamani ◽  
Yalcin Isler
Keyword(s):  
Reinforced Concrete ◽  
Urban Areas ◽  
Numerical Study ◽  
Total Error ◽  
Shear Walls ◽  
Compensation Method ◽  
Reinforced Concrete Buildings ◽  
Concrete Buildings ◽  
High Rise ◽  
L2 Norm

High-rise reinforced concrete buildings have technical, economic and environmental advantages for high density development and they have become a distinctive feature for densely populated urban areas around the world. For this purpose, structural design of high-rise reinforced concrete buildings have become forward and particularly serviceability requirements gained more interest. Differential shortening of vertical members is one of the serviceability requirements; however, only a limited number of studies exist. In this study, a practical compensation method was proposed for the differential shortening of columns and shear walls in high-rise reinforced concrete buildings. In the proposed compensation method, vertical members were grouped and the total error was aimed to be minimized by penalizing the higher shortening differences in the groups to simplify the process of building construction. In order to validate the proposed method, a 32-storey high-rise building that was built in Izmir Turkey was investigated considering both the construction sequence and time-dependent effects as shrinkage and creep. Vertical shortening of columns and shear walls in the tower part of the building were calculated. Uniform-grouped compensation method and the proposed penalized errors compensation method with using L1-norm and L2-norm were applied for differential shortenings of columns and shear walls with considering different numbers of member groups. The magnitude of errors for each compensation method was presented and evaluated. Results of the numerical study reveal that the proposed penalized errors compensation method was capable of determining the compensation errors by minimizing the maximum errors efficiently.

Evaluation of the structural damage of high-rise reinforced concrete buildings using ambient vibrations recorded before and after damage

2015 ◽  
Vol 45 (2) ◽  
pp. 213-228 ◽  
Author(s):  
Hirotoshi Uebayashi ◽  
Masayuki Nagano ◽  
Takenori Hida ◽  
Takehiko Tanuma ◽  
Mitoshi Yasui ◽  
...  
Keyword(s):  
Reinforced Concrete ◽  
Structural Damage ◽  
Ambient Vibrations ◽  
Reinforced Concrete Buildings ◽  
Concrete Buildings ◽  
High Rise ◽  
Before And After

Performance of reinforced concrete buildings during the 27 February 2010 Maule (Chile) earthquake

2013 ◽  
Vol 40 (8) ◽  
pp. 693-710 ◽  
Author(s):  
Murat Saatcioglu ◽  
Dan Palermo ◽  
Ahmed Ghobarah ◽  
Denis Mitchell ◽  
Rob Simpson ◽  
...  
Keyword(s):  
Reinforced Concrete ◽  
Structural Damage ◽  
Vertical Wall ◽  
Shear Walls ◽  
Poor Performance ◽  
Reinforced Concrete Buildings ◽  
Concrete Buildings ◽  
Concrete Frame ◽  
Maule Earthquake ◽  
Observed Damage

The paper presents observed damage in reinforced concrete buildings during the 27 February 2010 Maule earthquake in Chile. Performance of concrete frame and shear wall buildings are discussed with emphasis on seismic deficiencies in design and construction practices. It is shown that the majority of structural damage in multistorey and high-rise buildings can be attributed to poor performance of slender shear walls, without confined boundary elements, suffering from crushing of concrete and buckling of vertical wall reinforcement. Use of irregular buildings, lack of seismic detailing, and the interference of nonstructural elements were commonly observed seismic deficiencies. A comparison is made between Chilean and Canadian design practices with references made to the applicable code clauses. Lessons are drawn from the observed structural performance.

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