BIM & Beam

AUGUST 1, 2018

This is the third blog post in a series that discusses the advantages of working on concrete projects in a BIM process for structural engineers. The engineer can use engineering schedules or place tags in 2D or 3D views that reference concrete elements and reinforcement patterns.

Modeling 75

Modeling BIM Concrete Design 75

The Constructor

NOVEMBER 8, 2011

Cracks due to increased bending stress in beams 5. Cracks in concrete beams due to increased shear stress 2. Cracks in concrete beams due to corrosion or insufficient concrete cover 3. Cracks parallel to main steel in case of corrosion in beams 4. He is the founder of The Constructor and works in a reputed construction company.

Concrete 244

Concrete Foundation Materials Contract 244

The Constructor

MARCH 26, 2012

It can be seen from the diagrams above that the joints in the precast frame are made at positions of minimum bending moment. The bending moment diagrams of the precast concrete skeletal frame will vary from those of the in-situ frame as the joints are normally taken as being pinned, though moment joints may be possible.

Concrete 127

Concrete Foundation Transportation Design 127

The Constructor

JANUARY 21, 2012

A 2D beam only requires bending stiffness and cross-sectional area to be calculated. A 2D grillage model requires both bending and torsional stiffnesses but no area as there are no axial load present. Fig: 2-D Grillage Model Bending in beams leads to torsion in beams at 90degree.

Concrete 180

Concrete Modeling Foundation Design 180

The Constructor

NOVEMBER 11, 2011

The basic difference in the behavior of a truss and a beam is that the truss comprises members that can sustain only axial forces but no bending moment or shear force which are the dominant forces in the beam. Truss members can thus transmit only axial forces (tensile and compressive forces). The displacement can be computed as ……………. (1)

Concrete 128

Concrete Foundation Structural Engineering Materials 128

The Constructor

MARCH 19, 2012

However, if the formwork is curved, a thinner plywood is used to facilitate bending. Note the different thickness: A standard plywood thickness on site is 18mm. this is usually sufficient for most pours. Thicker plywood may be used when the weight of concrete causes a standard thickness plywood to bow out, distorting the concrete face.

Materials 136

Materials Concrete Fabrication Foundation 136

The Constructor

AUGUST 23, 2012

The downward load produces a shear force, the bending moment on a bracket produces a couple which imposes a tensile pull on the bolt in some circumstances. The design of bolts is one of the most important aspects of fixing design. In load bearing situations a bolt has a number of forces to resist.

Concrete 124

Concrete Foundation Materials Design 124