Practical Lessons for Concrete Wall Design, Based on ...

reinforced concrete structural walls. Similar construction is also prevalent in regions of high seismicity in the Western United States. Reconnaissance teams observed many instances of structural damage to reinforced concrete walls that could be relevant to U.S. building codes and standards.

Vol.6, , pp.3~18, March 2012 DOI 10.1007/s40069-012 ...

reinforced concrete code provisions, except boundary element confinement was not required. The 2010 Mw 8.8 earthquake caused serious damage to many of these buildings, including crushing/spalling of concrete and buckling of vertical reinforce-ment, often over a large horizontal extent of the wall (Fig. 1).

Understanding Poor Seismic Performance of Concrete Walls ...

reinforced concrete walls, this paper specifically addresses: (a) Impact of concentrating the ... In special structural walls, ACI 318 requires a minimum ... Crushing of concrete in the web regions, which can be exacerbated if the axial load in the walls increases due to vertical acceleration and/or

A New Rule-Based Strategy to Determine The Failure modes ...

Parameters affecting types of failure of reinforced concrete structural walls with arbitrary aspect ratios and cross section are investigated using data from numerous wall tests. Basically there are three known primary failure modes that covers prominent behavior of wall at the failure load. Shear failure is known by diagonal tension cracks and premature yielding of shear reinforcement that ...

Compressive Strength of Concrete - CivilWeb Spreadsheets

Simple structural concrete members will be reinforced with steel. In this case the steel reinforcement provides the tensile strength, and the concrete provides the compressive strength. In this case the compressive strength of concrete is the defining strength parameter only because the concrete is not expected to provide any tensile strength ...

DUCTILE DESIGN OF SLENDER REINFORCED CONCRETE …

Reinforced concrete structural walls are one of the most commonly employed lateral-load resisting system for mid- and high-rise buildings. ... and diagonal shear cracks within the web of the wall. These walls typically fail due to fracture of ... (crushing of core concrete or buckling of longitudinal steel). Force-Displacement Response

Performance of Structural Walls in Recent Earthquakes and ...

been accelerated by use of higher concrete strengths. Observed wall damage in recent earthquakes in Chile (2010) and New Zealand (2011), where modern building codes exist, exceeded expectations. In these earthquakes, structural wall damage included boundary crushing, reinforcement fracture, and lateral wall buckling.

DEVELOPMENT OF REINFORCEMENT DETAILS TO IMPROVE …

Four reinforced concrete wall specimens were constructed and tested at Chulalongkorn University to investigate the influence of diagonal web reinforcement on the hysteric response of structural walls. The dimensions of the specimens are shown in Figure 1. All walls had a barbell-shaped cross section with a web thickness of 100 mm

Seismic retrofit of reinforced concrete shear walls to ...

not compliant with the requirements of ACI 318-14 (ACI 2014). Failure of the wall was due to concrete crushing in the web and boundary element together with the fracture of transverse reinforcement, which led to the flexure-shear failure mode. More details about the wall can be found elsewhere (Pilakoutas and Elnashai 1995). Figure 1.

Experimental study on the effects of bi‐directional ...

Department of Structural and Geotechnical Engineering, Sapienza University of Rome, Rome, Italy ... three identical reinforced concrete (RC) walls were tested under three different lateral loading patterns. ... zone were found to be substantially larger when subjected to bi-directional loading and this led to the occurrence of concrete crushing ...

MODELLING OF RC BEAM-COLUMN JOINTS AND STRUCTURAL WALLS ...

The deformation of beam-column joints may contribute significantly to drift of reinforced concrete (RC) frames. In addition, failure may occur in the joints due to cumulative concrete crushing from applied beam and column moments, bond slip of embedded bars or shear failure as in the case of existing frames with nonductile detailing.

Influence of diagonal web reinforcement on cyclic behavior ...

The conventionally reinforced wall failed due to web crushing with an abrupt drop in load capacity, whereas the walls reinforced with diagonal web reinforcement failed in a more ductile mode. Test results clearly indicate that the diagonal web reinforcement reduces …

NONLINEAR ANALYSIS OF CONCRETE STRUCTURESt

Concrete exhibits a complex structural response with various important nonlinearities; namely, a non- linear stressstrain behavior, tensile cracking and compression crushing material failures and tempera- ture-dependent creep strains [2-91, All these concrete nonlinearities depend strongly on the triaxial state of

(PDF) A TWO-LEVEL-PERFORMANCE-BASED DESIGN OF REINFORCED ...

6th U.S. National Conference on Earthquake Engineering Topic Index Author Index Main Menu Displacement Capacity The modes of failure that affect the ultimate behavior of structural walls are: boundary element crushing, bar fracture, inelastic bar buckling, instability of compressive concrete, web crushing, and sliding shear (Oesterle, 1985).

Web Crushing of Reinforced Concrete Structural Walls

Date: 5/1/1984. Abstract: Results of an experimental investigation of isolated reinforced concrete structural walls subjected to inelastic load reversals are discussed and evaluated. Walls subjected to significant inelastic deformations and with strengths limited by concrete crushing of the web after flexural yielding are considered in this paper.

~II-~~'IIIIIIIIII I ----- gO-J32lj/g

reinforced concrete structural walls in earthquake resistant buildings. The objective of the experiments is to determine ductility, energy dissipation capacity and strength of a wide variety of walls. Isolated walls representipg those found in structural wall systems were tested. Test specimens were approximately 1/3­

Web Crushing of Reinforced Concrete Structural Walls ...

Request PDF | Web Crushing of Reinforced Concrete Structural Walls | Results of an experimental investigation of isolated structural walls subjected to inelastic load reversals are discussed and ...

Elastic and inelastic shear web crushing: (a) definition ...

This paper discusses the relationship between concrete strength and web crushing capacity based on results from large-scale tests of thin-webbed structural walls with confined boundary elements.

Cyclic Performance of RC Shear Wall Embedded with X-Shaped ...

Over the past few decades, the study on shear walls with various configurations of reinforcement detailing has shown significant growth due to its efficient performance under earthquake forces. The current work experimentally explores the seismic performance of reinforced concrete (RC) shear wall detailed with X-shaped web reinforcement configuration. Four numbers of 1:4 scaled …

Experimental Study of Reinforced Concrete Grid Structural ...

The reinforced concrete grid structural wall system is a new building structure which meets China's national ... structural column was provided at the web and flange interface, the structural column was 200mm wide, 350mm ... Minor crushing of the concrete at the bottom of boundary vertical limb was observed. During the

Evaluation of a Reinforced Concrete Wall Macroscopic Model ...

Reinforced concrete shear wall (RC wall) is an important element in tall buildings, which provides strength and stiffness against lateral loadings, e.g. earthquake and wind. Numerous researches have been conducted to study its nonlinear behavior via microscopic and macroscopic model. The later approach is currently being widely explored since it has many advantages compared to the preceding ...

Numerical Modeling of Reinforced Concrete Moderate …

Reinforced concrete structural walls are one of the most commonly employed lateral-load resisting ... Reinforced concrete walls are designed to carry flexural, shear and axial loads. ... development of diagonal or horizontal zones of concrete crushing within the web that may extend into the boundary regions of the wall, and possibly not ...

bursting and crushing concrete structure

bursting and crushing concrete structure Bursting And Crushing Reinforced Concrete. Burst And Crush Reinforced Concrete Pdf. 5 Bursting and crushing reinforced concrete pdf Crusher Unit 9 reinforced concrete wall buildings structural engineering burst and crush reinforced concrete pdf Seismic retrofit Reinforced concrete wall burst At the bottom of the bay a trench was excavated and …

[PDF] WEB CRUSHING CAPACITY OF HOLLOW RECTANGULAR …

This paper outlines an approach to assessing the horizontal shear capacity of hollow rectangular bridge piers designed to support 3 new toll bridges in the San Francisco Bay Area under seismic loads. The approach focuses on the piers capacity in diagonal compression, or their web crushing capacity, as it relates to the fanning crack pattern inside the plastic hinge region.

Paper Awards - American Concrete Institute

W. Gene Corley, J. D. Aristizabal-Ochoa, Kwok-Nam Shiu, and R. G. Oesterle for their V. 81 paper "Web Crushing of Reinforced Concrete Structural Walls" 1985 Frank J. Heger and Mehdi S. Zarghamee for their V. 80 paper "Buckling of Thin Concrete Domes"

Seismic Design of Cast-in-Place Concrete Special ...

reinforced concrete structural walls, which use cast-in-place, normalweight aggregate concrete and deformed, non-prestressed reinforcement. Wall configurations vary depending on the application, and may include coupling beams. Building codes permit the use of special walls using precast concrete,

Topic 11 - Seismic Design of Reinforced Concrete Structures

REINFORCED CONCRETE STRUCTURES Topic 11 is the seismic design of reinforced concrete structures, primarily buildings. During this lesson you will learn the basics of seismic design of reinforced concrete buildings. Buildings designed using these principles will fare better in a seismic event than the building shown in this slide.

Shear Design of Reinforced Concrete Beams, Slabs and Walls

design of structural walls is discussed. A new ... web crushing failure The ultimate shear strength of a beam ... Shear design of reinforced concrete beams, slabs and walls In AS3600'" the minimum amount of shear reinforcement is given by A 0.35b,s

Masonry infill walls in reinforced concrete frames as a ...

Masonry infill walls in reinforced concrete frames as a source of structural damping H. Ozkaynak1, E. Yuksel2,*,†, C. Yalcin3, A. A. Dindar4 and O. Buyukozturk5 1Department of Civil Engineering, Beykent University, Istanbul, Turkey 2Faculty of Civil Engineering, Istanbul Technical University, Istanbul, Turkey 3Department of Civil Engineering, Bogazici University, Istanbul, Turkey

Strength and drift capacity of squat recycled concrete ...

Web crushing of reinforced concrete structural walls. ACI J, 81 (3) (1984), pp. 231-241. View Record in Scopus Google Scholar. ... Cyclic behavior of reinforced concrete structural walls with diagonal web reinforcement. ACI Struct J, 98 (4) (2001), pp. 554-562. View Record in …

Seismic Behavior of Low-rise Concrete Shear Wall with ...

In order to study the restoring force model of low-rise concrete shear wall with single layer of web reinforcement and inclined rebars, a series of specimens were investigated by quasi-static tests. Based on the fitting of experimental data and theoretical analysis, the restoring force model considering four characteristic points (crack point, yield point, peak point and failure point) and ...