Abstract
In order to discuss the load capacity and displacement of masonry constructed with recycled concrete and self-insulation blocks, one type of 10.6 MPa compressive strength block and three kinds of mortar with M15, M10, and M5 compressive strengths are selected. The constitutive model and corresponding parameters selection of different materials in the ABAQUS numerical simulation are analyzed, and the numerical simulation analysis and experimental tests of the load capacity and displacement of masonry constructed with mortars of different strengths are carried out. The results show that masonry compression failure is controlled by the mortar or block that has the lower compressive strength. The displacement of masonry increases with the mortar compressive strength increase, and the higher mortar compressive strength is beneficial for improving the load capacity and displacement of masonry. Reasonable selection of the constitutive model and parameters will help to obtain reasonable results for the ABAQUS numerical simulation. Construction quality and loading method will affect the load capacity and displacement of the masonry. The above conclusion can provide reference for the engineering application of recycled concrete and self-insulation blocks.
Highlights
In recent years, with the rapid development of China’s economy, the improvement of urban and rural living environments has led to a large amount of building demolition and reconstruction
On the basis of analyzing the constitutive model and parameter selection of mortar and recycled concrete and self-insulation blocks, ABAQUS numerical software (6.13 Version, Dassault Systèmes Simulia Corp., Providence, RI, USA.) is used to simulate the influence law of masonry compressive strength and the displacement of masonry in order to provide a reference for the engineering application of the type of new recycled concrete and self-insulation block presented by the authors
By using recycled concrete aggregate and activated zinc and lead tailing powder, the authors developed a new type of three-row-hole block, which had a better energy saving effect
Summary
With the rapid development of China’s economy, the improvement of urban and rural living environments has led to a large amount of building demolition and reconstruction. Reducing the heat transfer coefficient of the self-insulation systems of exterior walls is the key to improving the level of building energy conservation It is of great significance in terms of economic and environmental protection value to find a type of energy-saving building wall material that can comprehensively utilize recycled concrete and metal tailings as building materials and improve the technical level of wall energy-saving [5]. On the basis of analyzing the constitutive model and parameter selection of mortar and recycled concrete and self-insulation blocks, ABAQUS numerical software (6.13 Version, Dassault Systèmes Simulia Corp., Providence, RI, USA.) is used to simulate the influence law of masonry compressive strength and the displacement of masonry in order to provide a reference for the engineering application of the type of new recycled concrete and self-insulation block presented by the authors
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