Fracture performance and fracture characteristics of concrete
This paper investigates the effect of pouring interval on the fracture performance and fracture characteristics of concrete beam with cold joints through three-point bending experiments
Short-length cold-joint model
Microsoft Word
Key words: cold-formed joints, experimental investigations, hollo-bolts, diaphragm connection, finite element models.
Analysis method for cracking and safety status of plain concrete lining
The cold joint defect is an initial issue arising from the discontinuous pouring process commonly encountered in large-volume concrete structures, particularly in tunnel lining. However, as
Simplified Numerical Simulation Modeling of a Reinforced Concrete
Drawing upon existing literature, including numerical simulations and experimental testing, this study presents a robust simplified numerical simulation modeling framework for
(PDF) Effect of reduced joint strength and semi-rigid
This paper considers the effect of semi-rigid joints and finite connection length on the design of cold-formed steel portal frames sized using a
11 COLD-FORMED MEMBER JOINTS
Press-Joints Press joining is a relatively new technique for joining cold-formed steel sections. The joint is formed using the parent metal of the sections to be connected. The tools used to form a press-joint
Modeling Reinforced Interfaces—Cold Joints Subjected to Cyclic Shear
In this work, the mechanisms mobilizing the shear resistance of interfaces, both under monotonic and cyclic actions, are described. Constitutive relationships based on previous research
Analytical Method and Analysis of Cold-Joint Interface
Cold-joint interface behaviour analysis was performed by predicting the shear stress and slippage values using the proposed analytical method, by
Lining cold joint defect formation mechanism and pouring interval
Utilizing these parameters, we developed a detailed model to simulate the pouring process of lining structures. By intentionally interrupting the on-site pouring process and controlling
What is a Cold Joint in Concrete? (And How to Fix them!)
What is a Cold Joint in Concrete? Cold joints occur when a fresh concrete batch is poured against a partially hardened existing layer. As you know, concrete
Enhancing Cold Joint Shear Strength Prediction in Concrete
The study utilizes a database of 217 cold joints, categorized by surface type (smooth or roughened), and employs a range of input parameters, including concrete strength, reinforcement
Classification Method for Railway Tunnel Secondary
In view of the existing cold joint detection methods, which have low detection efficiency and difficulty in data analysis, a tunnel secondary lining cold
(PDF) Experimental Investigation of the Effect of Cold
Moreover, examined specimens with cold joints to study the effect of delay time at 0,60,120,180 min that impacts cold joints on the strength and
(PDF) Mechanical behavior of concrete cold joints
Cold joints can reduce concrete strength by over 30%, depending on joint orientation and formation time. Horizontal cold joints maintain compressive strength, while diagonal and vertical joints exhibit
Mechanics‐based model for cold joints in reinforced concrete
This study introduces a mechanics-based numerical model to characterize the behavior of cold joints in reinforced concrete members subjected to monotonic loading. The model
Low Stress Level and Low Stress Amplitude Fatigue
Interface strength and thickness are the main factors affecting the possibility of fatigue damage occurrence and the variability of fatigue life. The
(PDF) Effects of Cold Joint and Its Direction on the Compressive and
The distance between the batching plant and the construction location is also an obstacle to cold joints. This study would test the compressive and flexural strength due to the effect of cold joint in concrete.
EFFECTS OF COLD JOINT AND ITS DIRECTION ON THE
Cold joints that occur in concrete significantly affect the performance and durability, so that further analysis and research needs to be done on the strength of concrete due to the cold joint.
Cold Solder Joint: Understanding and Prevention
A cold solder joint is a defect caused by improper melting of solder to bond PCB electronic components. This defect can impact the functionality of a
A thermo-hygro computational model to determine the factors
13% for ∆W = 0.1 m. The presented model allows the user to verify and compare the time for cold joint formation for any wall-like structural geometry and provides a relative time to cold joint
A thermo-hygro model to determine the factors dictating cold joint
The model provides a time estimate for cold joint formation as a result. It allows us to assess the drying severity for a given geometry of the structure, its interaction with the environment,
Shear strength in reinforced concrete beams with cold joint
Cold joints in reinforced concrete (RC) beams can significantly impact shear behavior, influencing stress distribution and failure patterns. This study examines how delay times,
Enhancing Cold Joint Shear Strength Prediction in Concrete
Therefore, when developing or evaluating precast and retrofitted structures, it is crucial to comprehend the shear force transfer capability of cold joints. This research explores the application
Experimental and Numerical Investigation of Cold Joint Effects on
After validating the numerical models, two structural designs have been proposed to mitigate the negative effects of CJs in reinforced concrete structures. These designs are intended to improve
(PDF) Mechanical behavior of concrete cold joints
In this paper, the problem of the generation of cold joints is approached from two complementary perspectives.
Cold Shrink Cable Joints | 3M Cold Shrink Low Voltage
Cold Shrink Cold Shrink Joints for Single & 3 Core Low Voltage Polymeric Cables Up To 3.3kV 3M Cold Shrink Cable Joints form part of the LC Series of low
An experimental and numerical study on the effects of cold joint
The study aims to measure the reduction in compressive and flexural strength of concrete specimens containing cold joints, evaluate the effect of cold joint orientation (vertical, horizontal, or