Seismic Performance of Precast Recycled Concrete Frame Structure

2015 ◽  
Vol 112 (4) ◽  
Author(s):  
Jianzhuang Xiao ◽  
Tao Ding ◽  
Thi Loan Pham
Keyword(s):  
Seismic Performance ◽  
Recycled Concrete ◽  
Frame Structure ◽  
Concrete Frame

Experimental and numerical study on seismic performance of steel reinforced recycled concrete frame structure under low-cyclic reversed loading

2018 ◽  
Vol 21 (12) ◽  
pp. 1895-1910 ◽  
Author(s):  
Jianyang Xue ◽  
Xin Zhang ◽  
Rui Ren ◽  
Lei Zhai ◽  
Linlin Ma
Keyword(s):  
Energy Dissipation ◽  
Seismic Performance ◽  
Numerical Study ◽  
Concrete Strength ◽  
Hysteresis Loops ◽  
High Energy ◽  
Recycled Concrete ◽  
Frame Structure ◽  
Concrete Frame ◽  
Reversed Loading

This article mainly focused on the seismic performance of steel reinforced recycled concrete frame structure under low-cyclic reversed loading. To evaluate seismic performance of steel reinforced recycled concrete frame structure, a two-span three-storied steel reinforced recycled concrete frame was conducted at civil engineering laboratory of Xi’an University of Architecture and Technology. Experimental and numerical studies were implemented to investigate the crack status, failure modes, hysteresis loops, skeleton curves, energy dissipation capacity, load–displacement curves, P-Δ effect, and the influence of recycled concrete strength under low-cyclic reversed loading. Results indicate that the steel reinforced recycled concrete frame structure has good seismic behavior during test, and the spindle-shaped hysteresis loops illustrate that the frame has relatively high energy dissipation capacities. The design of steel reinforced recycled concrete frame satisfied the requirements of strong column weak beam, strong shear weak bending, and strong joint weak components. Finally, the simulated results obtained by OpenSees software agree well with the test, which verify the rationality and reliability of the proposed model. The conclusions of this article will be helpful for the design of steel reinforced recycled concrete structures in seismic regions.

scholarly journals Experimental Study of a New Precast Prestressed Concrete Joint

2018 ◽  
Vol 8 (10) ◽  
pp. 1871 ◽  
Author(s):  
Xueyuan Yan ◽  
Suguo Wang ◽  
Canling Huang ◽  
Ai Qi ◽  
Chao Hong
Keyword(s):  
Energy Dissipation ◽  
Seismic Performance ◽  
Prestressed Concrete ◽  
Precast Concrete ◽  
Concrete Strength ◽  
Frame Structure ◽  
Loading Test ◽  
Concrete Frame ◽  
Concrete Joints ◽  
Precast Prestressed Concrete

Precast monolithic structures are increasingly applied in construction. Such a structure has a performance somewhere between that of a pure precast structure and that of a cast-in-place structure. A precast concrete frame structure is one of the most common prefabricated structural systems. The post-pouring joint is important for controlling the seismic performance of the entire precast monolithic frame structure. This paper investigated the joints of a precast prestressed concrete frame structure. A reversed cyclic loading test was carried out on two precast prestressed concrete beam–column joints that were fabricated with two different concrete strengths in the keyway area. This testing was also performed on a cast-in-place reinforced concrete joint for comparison. The phenomena such as joint crack development, yielding, and ultimate damage were observed, and the seismic performance of the proposed precast prestressed concrete joint was determined. The results showed that the precast prestressed concrete joint and the cast-in-place joint had a similar failure mode. The stiffness, bearing capacity, ductility, and energy dissipation were comparable. The hysteresis curves were full and showed that the joints had good energy dissipation. The presence of prestressing tendons limited the development of cracks in the precast beams. The concrete strength of the keyway area had little effect on the seismic performance of the precast prestressed concrete joints. The precast prestressed concrete joints had a seismic performance that was comparable to the equivalent monolithic system.

Seismic Performance Evaluation for Steel Reinforced Concrete Frame Structures

2011 ◽  
Vol 255-260 ◽  
pp. 2421-2425
Author(s):  
Qiu Wei Wang ◽  
Qing Xuan Shi ◽  
Liu Jiu Tang
Keyword(s):  
Reinforced Concrete ◽  
Seismic Performance ◽  
Frame Structure ◽  
Reinforced Concrete Frame ◽  
Seismic Performance Evaluation ◽  
Steel Reinforced Concrete ◽  
Concrete Frame ◽  
Structural Capacity ◽  
Reinforced Concrete Frame Structures ◽  
Dynamic Nonlinear Analysis

The randomness and uncertainty of seismic demand and structural capacity are considered in demand-capacity factor method (DCFM) which could give confidence level of different performance objectives. Evaluation steps of investigating seismic performance of steel reinforced concrete structures with DCFM are put forward, and factors in calculation formula are modified based on stress characteristics of SRC structures. A regular steel reinforced concrete frame structure is analyzed and the reliability level satisfying four seismic fortification targets are calculated. The evaluation results of static and dynamic nonlinear analysis are compared which indicates that the SRC frame has better seismic performance and incremental dynamic analysis could reflect more dynamic characteristics of structures than pushover method.

Seismic performance of ductile medium height reinforced concrete frame buildings designed in accordance with the provisions of the 1995 National Building Code of Canada

1999 ◽  
Vol 26 (5) ◽  
pp. 606-617 ◽  
Author(s):  
A C Heidebrecht ◽  
N Naumoski
Keyword(s):  
Reinforced Concrete ◽  
Seismic Performance ◽  
Frame Structure ◽  
Performance Criteria ◽  
Building Code ◽  
Reinforced Concrete Frame ◽  
Concrete Frame ◽  
Moment Resisting Frame ◽  
Moment Resisting ◽  
Interstorey Drift

This paper describes an investigation into the seismic performance of a six-storey ductile moment-resisting frame structure located in Vancouver and designed and detailed in accordance with the seismic provisions of the National Building Code of Canada (1995). Both pushover and dynamic analyses are conducted using an inelastic model of the structure as designed and detailed. The structural performance of a number of design variations is evaluated using interstorey drift and member curvature ductility response as performance measures. All frames studied are expected to perform at an operational level when subjected to design level seismic excitations and to meet life safe performance criteria at excitations of twice the design level.Key words: seismic, building, frames, ductile, design, performance, reinforced concrete, code.

Test Research on Seismic Performance of Beam

2012 ◽  
Vol 594-597 ◽  
pp. 1680-1683
Author(s):  
Hai Tao Wan ◽  
Yu Qing Yuan
Keyword(s):  
Reinforced Concrete ◽  
Seismic Performance ◽  
Effective Means ◽  
Test Method ◽  
Frame Structure ◽  
Beam Specimen ◽  
Rc Beam ◽  
Rc Beams ◽  
Reinforced Concrete Frame ◽  
Concrete Frame

Reinforced concrete ( RC) frame structure is one type of building structure which is widely used in China. Damage of some reinforced concrete frame structures under the earthquake is caused by the damage of RC beams, So RC beams are an essential seismic members. The paper introduces the design of RC beam specimen, mechanical properties of materials, production of RC beam specimen, test method, loading device, loading system, the contents of measurement and data acquisition in detail. From the above analysis, it is obvious that the test is the most effective means of studying the seismic performance of beam.

Research on Seismic Strengthening with the Performance of the Dynamic Measurement Method

2014 ◽  
Vol 1021 ◽  
pp. 152-155 ◽  
Author(s):  
Jian Jian Zhang ◽  
Yong Sheng Zhang
Keyword(s):  
Seismic Performance ◽  
Dynamic Characteristics ◽  
Residential Building ◽  
High Sensitivity ◽  
Modal Identification ◽  
Frame Structure ◽  
Test Results ◽  
Reinforced Concrete Frame ◽  
Concrete Frame ◽  
High Rise

The structure of the dynamic characteristics can comprehensively reflect the seismic performance of the structure. By high sensitivity under external excitation vibration pickup pick structure dynamic response to obtain the dynamic characteristics of buildings, this paper introduces the principle of vibration test and modal identification method of information. To high-rise shear wall of reinforced concrete frame structure of a residential building as an example, has carried on the test, through the test results of the seismic performance of this structure after reinforcement.

Seismic Performance Analysis of Reinforced Concrete Frame Structures Based on Computational Mechanics

2021 ◽  
Author(s):  
Taochun Yang ◽  
Yanjun Li ◽  
Xiaohui Zhai
Keyword(s):  
Reinforced Concrete ◽  
Seismic Performance ◽  
Frame Structure ◽  
Frame Structures ◽  
Reinforced Concrete Frame ◽  
Concrete Frame ◽  
Multi Scale ◽  
Scale Modeling ◽  
Reinforced Concrete Frame Structure ◽  
Multi Scale Modeling

In order to study the degradation law and seismic performance of reinforced concrete frame structure with the extension of service time under normal service environment, the multi-scale modeling of corroded reinforced concrete frame is carried out by using the general finite element analysis software ABAQUS. The correctness of the multi-scale modeling method is verified by the experimental data of corroded reinforced concrete members and single frame. The pushover analysis and elastic-plastic time history analysis of a four story reinforced concrete frame structure are carried out by using a multi-scale model. Then the seismic response and damage of RC frame structures with different service time are compared. The experimental results show that the established seismic performance model of reinforced concrete frame structure is more practical in practical application and can meet the research requirements.

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