Settlement Response of a Multi-Story Building

A H Bhutto,G S Bhurgri,M M Babar,B A Memon,S Zardari,M A Zardari

doi:10.48084/etasr.3757

Abstract

The settlement calculation of a multi-story building is a challenging task due to the variation of soil properties and the use of an appropriate constitutive model for the reliable representation of soils’ stress-strain behaviors. In this study, the settlement response of a multi-story building was calculated with the simple Mohr-Coulomb Model (MCM) and the Hardening Soil Model (HSM). The effect of soil modulus of elasticity using both models was investigated on the overall settlement response of the building. Results indicated that MCM overestimated immediate settlement in a range of 50 to 65% compared to HSM. The settlement response of the building calculated with both models was within the allowable range. The results of this study can be helpful for geotechnical engineers working on reliable predictions of the settlement of multi-story buildings.

Highlights

INTRODUCTIONThe reliable prediction of a multi-story building’s settlement is a great challenge for geotechnical engineers [1,2,3]
The reliable prediction of a multi-story building’s settlement is a great challenge for geotechnical engineers [1,2,3].Several factors affect the settlement of a building, such as the type of soil, the degree of compactness, soil stratigraphy, and the location of water table [4,5]
The left and right vertical boundaries and the bottom of the finite element model were closed to prevent the dissipation of excess pore pressures

Summary

INTRODUCTION

The reliable prediction of a multi-story building’s settlement is a great challenge for geotechnical engineers [1,2,3]. Modulus of elasticity is a main parameter that controls the settlement, as higher values result in lower settlement [6]. This indicates that a part of the settlement is elastic and the remaining is plastic. Bhutto et al.: Settlement Response of a Multi-Story Building numerical analysis for calculating the settlement of a building using both MCM and HSM. The foundation soil profile and the material properties are presented. The settlement is evaluated with both MCM and HSM, and the results are compared

Finite Element Model

Soil Properties

RESULTS AND DISCUSSION

CONCLUSION