Prefabricated House Seismic Test Plan

The prefabricated house seismic test plan should be designed around objectives, method selection, standard evaluation, and content system, as detailed below:

I. Test Objectives and Positioning

The test must ensure data accuracy (error rate ≤ 5%, compliant with GB/T 50152 standards), process standardization (100% uniformity in full-process operations), safety and efficiency (single-test cycle ≤ 72 hours, 100% compliance with safety protection standards), and data traceability (100% complete record retention). Positioned for seismic performance testing of building components such as concrete and steel structures (e.g., frame joints, shear walls), the plan provides technical support for design improvements and post-disaster repairs.

II. Test Methods

1. Simulated Earthquake Motion Test: Load earthquake wave parameters as specified by national standards on a seismic test platform, recording parameters such as acceleration, velocity, and displacement to evaluate structural response.
2. Loading Schemes:
   • Low-Cycle Reversed Loading Method: Suitable for component testing, following GB/T 50152-2012, simulating earthquake reciprocating effects through cyclic loading.
   • Quasi-Static Loading Method: For overall structural models, referencing JGJ/T 101-2015, simulating seismic forces through slow loading.
   • Dynamic Time-History Analysis Method: Analyzing structural dynamic response by selecting earthquake waves, suitable for complex dynamic testing.

III. Evaluation Criteria

Based on the Code for Seismic Design of Buildings (GB 50011-2010), key indicators include:

• Seismic Displacement Angle: Measures structural deformation capacity.
• Seismic Capacity Indicators: Evaluates structural load-bearing and energy dissipation capacities.
• Period: Reflects structural dynamic characteristics.
• Crack Control Performance: Limits crack width to ensure safety.
• Displacement Limits: Specifies maximum allowable structural deformation.

IV. Test Content System

1. Pre-Configuration Preparation:
   • Current Situation Analysis and Standard Definition: Identify process pain points through preliminary tests (e.g., poor loading synchronization, unreasonable sensor placement) and establish an indicator checklist (specimen size deviation ≤ 2mm, loading equipment accuracy ±1% FS).
   • Basic Support Preparation:
     • Technical Preparation: Plan a route from "specimen design → preparation and curing → equipment debugging → loading testing → data processing → result reporting," referencing both GB 50011 and international FEMA 356 standards.
     • Personnel and Material Preparation: Form a team including structural engineers and safety supervisors (certified), equipped with electro-hydraulic servo loading systems, reaction frames (stiffness ≥ 10 times that of the specimen), and high-precision displacement meters (0.01mm) and force sensors.

The plan must strictly adhere to standards to ensure scientific rigor, safety, and repeatability, providing a reliable basis for evaluating the seismic performance of prefabricated houses.