Experimental Study on Seismic Behavior of Pre-Cast Concrete Structure with Cast-In Situ Integral Beam-Column Joint Sub-Assemblage

2011 ◽  
Vol 71-78 ◽  
pp. 506-509
Author(s):  
Ji Chao Zhang ◽  
Nan Li ◽  
Lei Ji
Keyword(s):  
Experimental Study ◽  
Seismic Behavior ◽  
Concrete Beam ◽  
Skeleton Curve ◽  
Weak Beam ◽  
Scale Models ◽  
Cast Concrete ◽  
Column Joint ◽  
Reversed Loading

Based on the need of housing industrialization, using full-scale models, this paper investigated the seismic behavior of pre-cast concrete beam-column subassemblies with cast-in-situ monolithic joints under low-cycle reversed loading. The failure pattern, hysteretic characteristic, skeleton curve, ductility and energy dissipation were also analyzed. The result indicated that beam-column joints with longitudinal bars welded at the bottom of beams can meet the requirements of “strong column-weak beam, stronger joint”.

Experimental Investigation on HRBF500 RC Circular Pile under Low Cyclic Reversed Loading

2011 ◽  
Vol 105-107 ◽  
pp. 1250-1254
Author(s):  
Qian Fu ◽  
Shu Ting Liang ◽  
Xiao Jun Zhu
Keyword(s):  
Seismic Design ◽  
Seismic Behavior ◽  
High Strength ◽  
Skeleton Curve ◽  
Failure Patterns ◽  
Concrete Piles ◽  
Fine Grain ◽  
Steel Bars ◽  
Reversed Loading ◽  
Ductile Behavior

Six concrete piles reinforced with 500MPa fine-grain steel bars were tested under low cycle reversed loading to study the seismic behavior such as failure patterns, characteristics of hysteretic and skeleton curve. Three parameters, longitudinal reinforcement strength, reinforcement ratio and axial compression ratio were taken into consideration. The main failure patterns as well as hysteretic curve of those piles were obtained, and influence of each of the three parameters on the ductile behavior, ability of energy dissipation and law of strength degeneration were analyzed. The experimental results indicate that the mechanical behavior of reinforced concrete low cyclic reversed loading columns with fine grain high strength reinforcement is similar to normal reinforced columns. The concrete piles reinforced with 500MPa fine-grain steel bars show good seismic performance and 500MPa fine-grain steel bars can be used in seismic design.

Experimental study of a novel precast prestressed reinforced concrete beam-to-column joint

2018 ◽  
Vol 156 ◽  
pp. 68-81 ◽  
Author(s):  
Haishen Wang ◽  
Edoardo M. Marino ◽  
Peng Pan ◽  
Hang Liu ◽  
Xin Nie
Keyword(s):  
Experimental Study ◽  
Reinforced Concrete ◽  
Concrete Beam ◽  
Reinforced Concrete Beam ◽  
Column Joint

scholarly journals Experimental Study on Seismic Behavior of Cluster-Reinforced Precast Concrete Columns with Grouting-Anchor Connections

2019 ◽  
Vol 13 (03n04) ◽  
pp. 1940007
Author(s):  
L. H. Xu ◽  
Q. L. Wang ◽  
M. Yu ◽  
Y. Chi ◽  
B. Yang ◽  
...  
Keyword(s):  
Seismic Behavior ◽  
Residential Buildings ◽  
Precast Concrete ◽  
Limit State ◽  
Failure Process ◽  
Hysteresis Curve ◽  
Moderate Increase ◽  
Skeleton Curve ◽  
Static Tests

The prefabricated residential buildings have become one of the most dominating construction methods in the modern construction industry. The seismic behavior of prefabricated components is crucial in the limit state design of the precast structure. This paper investigates the seismic behavior of a new type precast concrete column that has clustered steel reinforcement with grouting connection. Quasi-static tests are carried out on three cast-in-situ columns and seven precast columns. Axial compression ratio, lap length and lap space are the main variables considered. The failure process, hysteresis curve, skeleton curve, stiffness degradation, displacement ductility and energy dissipation are elaborated. The experimental results show that the precast columns with cluster reinforcement have similar seismic behavior to the cast-in-situ columns. Reducing the axial pressure can improve the ductility and energy consumption performance of the cluster-reinforced columns and exert its ductility to improve its seismic performance. During the assembly, a moderate increase in lap length can improve the seismic behavior of precast columns, whereas the lap space has an insignificant effect on the seismic behavior which indicates that the lap space is not an important factor during construction. The research outcome can serve as a reference for further development and application of precast structures.

Experimental and Numerical Investigation on the Seismic Behavior of Large-Scale Beam to Column Exterior Joints with Composite Slab

2011 ◽  
Vol 243-249 ◽  
pp. 486-493
Author(s):  
Shi Cai Chen ◽  
Wei Ming Yan ◽  
Xiao Ming Tian ◽  
Jie Gao
Keyword(s):  
Seismic Behavior ◽  
Large Scale ◽  
Precast Concrete ◽  
Skeleton Curve ◽  
Composite Slab ◽  
Displacement Ductility ◽  
High Rise ◽  
Study Results ◽  
Scale Models ◽  
Unique Nature

In order to analyze seismic behavior of large-scale exterior joints of high-rise precast concrete structures, an experimental study on seismic performances of precast beam to column exterior joints with composite slab was conducted with large full-scale models. The failure pattern, hysteretic characteristic, skeleton curve, displacement ductility and energy dissipation, were analyzed. The results provided some information about the seismic behavior of the joint. However, due to the unique nature of the specimens, several other key parameters could not be varied. Therefore, a numerical joint model taking the bar slippage into consideration was developed based on the OPENSEES software and validated against the results of experimental test, then the parameters analysis was carried out. The study results indicated that the overall seismic performance of cast-in-place joint is almost equal to that of the monolithic specimen.

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