Hybrid Steel Timber Brace Connection
ABSTRACT
Two innovative hybrid steel-wood seismic force-resisting systems
have been developed that utilize the energy dissipation
capabilities of advanced structural steel systems to improve the
seismic performance and design of heavy timber structures.
Conceptual designs of these two systems are presented: first, a
buckling restrained braced frame adapted for wood buildings using
glued-in rods; and second,a ductile and replaceable steel reduced
beam section connection adapted for wood buildings using a steel
panel zone and self-tapping screws.To investigate the dynamic
behavior of these systems nonlinear time-history analyses was
performed on four six-storey structures designed for Victoria BC:
two using the new hybrid steel-wood designs and two using
conventional steel-only designs.These analyses were conducted using
OpenSees. Each structure is subjected to 44 maimum considered and
44 design basis earthquakes using FEMA-P695 ground
motions.Comparable seismic performance was observed for the hybrid
and steel-only frames.Weight reduction due to the use of wood
resulted in significantly lower base shears for the hybrid
structure.Average interstorey drifts remained within allowable
limits of 2.5% of storey heightas specified in the NBCC(2010)for
both the buckling-restrained braced and moment-resisting frames.
Storey accelerations were similar for both the hybrid and
steel-only frames.
Introduction
The high strength-to-weight ratio of wood allows wood structures to
be potentially lighter than equivalent concrete or steel
structures.This low weight makes wood buildings attractive for use
in seismically active regions; however, existing lateral force
resisting systems for heavy timber buildings typically have
significantly less ductility than seismically-designed steel or
concrete buildings.This results in lower force modification
factors(R-factors)for wood structures,which, in turn, result in
comparatively large seismic design forces, negating the inherent
benefit of wood’s low weight.
Two innovative hybrid steel-wood seismic force-resisting systems have been developed that
utilize the energy dissipation capabilities of advanced structural steel systemsto improve the seismic
performance and design of heavy timber structures. Conceptual designsof these two systems are
presented: first, a buckling restrained braced frame adapted for woodbuildings usingglued-in rods; and
second, a ductile and replaceable steel reduced beam section connection adapted forwood buildings using
a steel panel zone and self-tapping screws. To investigate the dynamic behavior of these
systems,
nonlinear time-history analyses was performed on four six-storey structures designed for Victoria BC: two
using the new hybrid steel-wood designsand two using conventional steel-only designs. These analyses
were conducted using OpenSees. Eachstructure is subjected to 44 maximum considered and 44 design
basis earthquakes using FEMA-P695 ground motions. Comparable seismic performance was observed
for
the hybrid and steel-only frames. Weight reduction due to the use of wood resulted in significantly lower
base shears for the hybrid structure. Average interstorey drifts
remained within allowable limits of 2.5% of
storey height as specified in the NBCC (2010) for both the buckling-restrained braced and moment-resisting
frames. Storey accelerations were similar for both the hybrid and
steel-only frames
ABSTRACT: Two innovative hybrid steel-wood seismic force-resisting systems have been developed that
utilize the energy dissipation capabilities of advanced structural steel systemsto improve the seismic
performance and design of heavy timber structures. Conceptual designsof these two systems are
presented: first, a buckling restrained braced frame adapted for woodbuildings usingglued-in rods; and
second, a ductile and replaceable steel reduced beam section connection adapted forwood buildings using
a steel panel zone and self-tapping screws. To investigate the dynamic behavior of these
systems,
nonlinear time-history analyses was performed on four six-storey structures designed for Victoria BC: two
using the new hybrid steel-wood designsand two using conventional steel-only designs. These analyses
were conducted using OpenSees. Eachstructure is subjected to 44 maximum considered and 44 design
basis earthquakes using FEMA-P695 ground motions. Comparable seismic performance was observed
for
the hybrid and steel-only frames. Weight reduction due to the use of wood resulted in significantly lower
base shears for the hybrid structure. Average interstorey drifts
remained within allowable limits of 2.5% of
storey height as specified in the NBCC (2010) for both the buckling-restrained braced and moment-resisting
frames. Storey accelerations were similar for both the hybrid and
steel-only frames
ABSTRACT: Two innovative hybrid steel-wood seismic force-resisting systems have been developed that
utilize the energy dissipation capabilities of advanced structural steel systemsto improve the seismic
performance and design of heavy timber structures. Conceptual designsof these two systems are
presented: first, a buckling restrained braced frame adapted for woodbuildings usingglued-in rods; and
second, a ductile and replaceable steel reduced beam section connection adapted forwood buildings using
a steel panel zone and self-tapping screws. To investigate the dynamic behavior of these
systems,
nonlinear time-history analyses was performed on four six-storey structures designed for Victoria BC: two
using the new hybrid steel-wood designsand two using conventional steel-only designs. These analyses
were conducted using OpenSees. Eachstructure is subjected to 44 maximum considered and 44 design
basis earthquakes using FEMA-P695 ground motions. Comparable seismic performance was observed
for
the hybrid and steel-only frames. Weight reduction due to the use of wood resulted in significantly lower
base shears for the hybrid structure. Average interstorey drifts
remained within allowable limits of 2.5% of
storey height as specified in the NBCC (2010) for both the buckling-restrained braced and moment-resisting
frames. Storey accelerations were similar for both the hybrid and
steel-only frames
Type:modular buildingCustomized Metal Shoring Steel Structure
Project ICF Bracing System
Material:steel
Application:House Building
Function:Energy-saving
surface treatment:Hot dip galvanized
ICF bracing system:
U channel length :2700 mm,width:135 mm,both side height:60 mm,wall
thickness: 3 mm,welded a plate with 16mm hole at bottom end
Support foot :Φ 38 mm,length1500 mm+Φ32mm,1500mm length,wall
thickness :2 mm(total 3000mm length)
Triangle bracket: 40 mm x 40 mm,wall thickness :2 mm
Guardrail post:40*40* L:1100 mm * wall thickness 2 mm
Self-locking Pins:3pcs
Expansion bolts:3PCS
Reinforce bolts:2pcs
| Product Name |
Customized Metal Shoring Steel Structure Project ICF Bracing System
|
| Material |
Q235 Q345 & Q355B steel
|
| Application |
Building Construction temporary support
|
| Surface treatment |
Dip paint, Pre Galvanized, Hot dip galvanized
|
| Color |
Customized
|
| Product Keywords |
scaffolding prop,adjustable steel prop scaffolding,formwork props
scaffold
|
