Concrete Wall Expansion Joint Detail

Types of construction joints in concrete structures.

Concrete wall expansion joint detail.

I ve read through aci looked at old detail books and thought through. Ment should not pass through wall expansion or isolation joints. Concrete wall joints and corner details guastavino structural op 22 apr 16 16 41. Expansion joints are provided in slabs pavements buildings bridges sidewalks railway tracks piping systems ships and other structures.

Construction joints use construction joints when the c o n c r ete placement. Expansion joint cad details library index. Expansion joint and sealant cad details are provided here in quick view gif as well as dwg and pdf files. There is a special check to be done at the construction joints when larger retaining walls or structures having very high lateral loads are designed.

I like the corner detail alright but the joint details i m working on are a work in progress. Chapter 9 liquid retaining structures p. Concrete undergoes expansion due to high temperature when in a confined boundary which leads to cracks. Concrete joints are used to compensate when concrete expands or shrinks with changes in temperature.

Folks i m working up some typical details here and i want to open for comment. In addition emseal is adding 3 d dwf files created in autocad inventor on a regular basis. 9 1 introduction 9 2 contraction joints 9 3 isolation or expansion joints 9 4. Concrete joints are normally used to prevent cracks when the concrete shrinks by creating forming tooling sawing and placing joint formers.

The building longer than 45m are generally provided with one or more expansion joint. Selection guide for fire rated expansion joints for structural and seismic joints in walls floors and decks of buildings. The pre planned cracks will provide a better finish concrete product and will be formed in specific locations where those cracks could be monitored. If plans call for expansion joints verify the type of joint intended and execute the details carefully so the joint works pro p e r l y.

1 for more detailed information. The friction of the concrete is the key factor that limits the movement. Dwf files where available are under specific product joint sizes. Expansion is a function of length.

True expansion joints in cast in place walls are not common. Ul 2079 certified joint systems. Control joints are typically required in exposed above grade concrete masonry walls where net aesthetic shrinkage cracking may detract from the appearance of the wall and to limit moisture or air infiltration. The hight shear force is applied at the horizontal construction joints located at the lower level.

So we have to cater for this by way of joint to relieve the stress. See clay and concrete masonry banding details tek 5 2a ref. This article emphases on need of expansion.