Bolted column connectionfor seismic applications

Figure: Peikko

Peikko’s bolted column-to-foundation connection (adapted from [16], [17])

Figure: Peikko

Chain analogy of the design alternatives

Figure: Peikko

Peikko’s column connection for seismic applications

Figure: Peikko

Test setup and general view of the specimen in the lab

Figure: Peikko

Column cross-sections and material details of the specimens

Figure: Peikko

PC1 specimen and failed anchor bolts with damaged thread; ...

Figure: Peikko

... CIP 1 specimen with buckling and failure of longitudinal rebars

Figure: Peikko

Chart 1: Comparison of the hysteresis curves of PC1 and CIP1 specimens; Chart 2: comparison of the backbone curves

Figure: Peikko

Comparison of Chart 3: the damping factor and Chart 4: the initial stiffness

Figure: Peikko

Flowchart showing the different design options for bolted column connections

Figure: Peikko

Technical manual

The connections between precast elements play a fundamental role in the overall performance of the structure, especially if seismic applications are considered. In fact, precast connections represent a critical link where structural continuity is needed. With regard to this requirement, Peikko carried out a wide-ranging experimental research program in cooperation with Politecnico di Milano.

1 Introduction

The connections between precast elements play a fundamental role in the overall performance of the structure, representing a critical link where structural continuity is needed for seismic applications. Without specific design guidelines, early precast structures revealed poor seismic performance because of inadequate detailing.

However, precast structures offer several advantages during both production and installation compared with traditional solutions, such as better material and product quality control, improved erection speed and cost savings. In the last two decades,...