Carlsbad Seismic Retrofit Seismic Retrofit

Carlsbad Seismic Retrofit

A 10-building seismic retrofit in Carlsbad featuring reinforced concrete foundations, structural steel columns and beams, and carefully phased work within an occupied multifamily community.

Type Commercial Construction
Location Carlsbad, CA
Size 10 buildings
Timeline 9 months
Seismic Retrofit

Project description

Axmis Construction completed a seismic retrofit across 10 occupied multifamily buildings in Carlsbad. The work strengthened parking-level structural bays with reinforced concrete footings and grade beams, reinforcing steel, structural steel columns and beams, framing restoration, stucco, and paint. Construction was carefully phased to maintain safe resident access and minimize disruption throughout the occupied property.

Existing Conditions
01

Existing Conditions

The existing occupied multifamily buildings and open parking-level structural bays were documented before active retrofit work.

Work Area Protection
02

Work Area Protection

The parking-level work zone was isolated and prepared for controlled demolition while access around the occupied property was managed.

Selective Demolition
03

Selective Demolition

Concrete was removed along the column line to expose the area required for the new structural foundation system.

Foundation Excavation
04

Foundation Excavation

Continuous trenches were excavated for reinforced footings and grade beams connecting the retrofit columns.

Temporary Shoring
05

Temporary Shoring

Temporary steel posts supported the structure while foundation and framing work progressed.

Column-Line Preparation
06

Column-Line Preparation

Excavation continued around the existing column line, establishing access for the new reinforced concrete and steel system.

Steel Component Preparation
07

Steel Component Preparation

Steel plates and structural components were staged for installation at the parking-level retrofit bays.

Beam Exposure
08

Beam Exposure

Existing finishes and framing were opened to expose the beam line and prepare connections for the new structural steel.

Reinforcing Steel
09

Reinforcing Steel

Rebar cages were installed within the excavated foundation trenches and coordinated around the steel columns.

Foundation Preparation
10

Foundation Preparation

The footing excavation, dowels, and reinforcing system were prepared for concrete placement.

Steel Installation
11

Steel Installation

New steel columns and a horizontal beam were installed to strengthen the parking-level structural bay.

Finish Restoration
12

Finish Restoration

Framing, stucco, and painted finishes were restored around the completed structural retrofit.

Planning & Design

    Project details

    Project Details

    Project Type
    Seismic Retrofit
    Buildings
    10 Multifamily Buildings
    Public Location
    Carlsbad, CA

    Key Features

    Occupied Property Coordination
    Included
    Reinforced Concrete Foundations
    Included
    Framing Restoration
    Included
    Stucco and Paint Restoration
    Included
    Check out the works

    Video of the object

      Scope of Work

      What We Did

      Structural Foundations

      • Selective concrete demolition
      • Footing and grade beam excavation
      • Reinforcing steel installation
      • Reinforced concrete foundations

      Structural Steel

      • Steel column and post installation
      • Structural beam installation
      • Beam-to-column connections
      • Existing framing integration

      Building Restoration

      • Wood framing restoration
      • Stucco patching
      • Exterior painting
      • Parking-area finish restoration

      Project Management

      • Occupied-property coordination
      • Phased scheduling
      • Resident access planning
      • Site safety and quality control
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