I would like to hear others thoughts on the Inspection requirements by the Licensed Design Engineer(LDP)(or person under the LDP or a qualified inspector) stated in ACI Chapter 26, section 26.13.1.2.
Chapter 26 begins with "in the absence of a general building code, concrete construction shall...
Question over:
Obtaining values or Expanding Tables with comparison to dimensionless frequencies, ao
Can anyone point me to references that have published values or how to calculate soil parameters when the dimensionless frequency a0 is outside of 2, 4, or even 10? Most of the resources I find...
I would like to hear what the typical approach/solution is for when construction fouls-up and creates an excessively oversized hole for post-installed anchors. Let's say the hole is oversized by 3 times the anchor diameter or even 4*dia -6*dia.
I am aware Hilti addresses oversized holes for...
I have a underground precast concrete sump pit that is actively leaking at a(horizontal)construction joint. The leak is due to the groundwater penetrating the joint.
The leak is located about 10 feet below grade, in the corner of the wall, at the joint. Due to the high groundwater table, the...
I want to avoid having a construction joint at the interface of a 4'x10'x3'deep concrete pedestal / pads on a mat foundation. Vibratory equipment is going to bear on the concrete pedestals. Can the field / construction guys easily form and pour concrete in this area to get a monolithic pour...
Can anyone point me in the direction for reinforcing large concrete columms. I want to see typical longitudinal reinforcement arrangement for columns on the size of 10ftx10ft. Is it required to add additional steel away from the perimeter? Also when adding lateral support to some of the...
When designing temporary vertical bracing connections, is the Steel Seismic Design Manual for seismic detailing of connections need to be followed? I want to avoid beef-up gussets, welds, bolts and adding web stiffeners for temporary bracing that will be up no longer thant four weeks. I'm just...
I have read the post "Minimum shear reinforcement in pile caps?" posted on 1 APR 2012.
From reading posts, most prefer designing pile caps using the strut-and-tie model. Which is pretty basic for 2-pile, 4-pile arrangements or pretty much symmetric layouts. But at the same time there is CRSI...
ACI 318 chapter 11 shear design is a littler clearer for circular cross sections. Can anyone point me to the right direction if I wanted to design a circular cross section for shear using the Strut-and-Tie method.
I am designing a steel structure that supports alot of mechanical piping. The main or the biggest pipes my structure supports are referred to as Main Steam and a Process Steam Piping. Unfortunately in the business I am involved-in requires my structure to be designed way before the mechanical...
I have a question about the tie spacing / transverse reinforcment in piles. I am in a low seismic Region so chapter 21 of the ACI 318 does not apply to me. Also ACI 318 states in chapter 1, that ACI 318 is not for piles unless for high seismic regions.
From ACI 543 in the Structural Design...
I have a WT9x53 horizontal Brace that is about 30 feet long. The WT9x53 brace is connected at the ends at the flanges only and not the stem (therefore I have eccentric loading). The brace has already been put into place at the job site. An interference has occurred and due to how congested the...
I am studying for the upcoming PE Exam in April and need help determining the effective width using AASHTO. I do not have the AASHTO design specifications and do not want to lose points on the exam for a simple question. Can someone help be with the effective width for interior and exterior...
