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RE: Earthquake in Colombia.

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Do you have any method that incorporates the masonry into the frame
behavior?
Ing. Vincenzo Valerio
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Enmar Representaciones y Asesorias, C.A.
Caracas, Venezuela.
Tel: 58-2-238-5253 ; Fax: 58-2-237-1101
E-mail: enmar(--nospam--at)etheron.net
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-----Original Message-----
De: Rodrigo Lema <rodrigolema(--nospam--at)softhome.net>
Para: seaint(--nospam--at)seaint.org <seaint(--nospam--at)seaint.org>
Fecha: Lunes 1 de Febrero de 1999 10:56 PM
Asunto: RE: Earthquake in Colombia.


>    I mean the kind of failure that usually happens when masonry is ignored
>in the calcs and it interferes with the frame behavior.
>
>
>-----Mensaje original-----
>De: Juan C. Gray <juangray(--nospam--at)col2.telecom.com.co>
>Para: seaint(--nospam--at)seaint.org <seaint(--nospam--at)seaint.org>
>Fecha: lunes, 01 de febrero de 1999 13:10
>Asunto: Re: Earthquake in Colombia.
>
>
>I'm sorry ; I don't grasp what you mean. Can you please rephrase your
>question?
>
>Juan C. Gray
>
>Rodrigo Lema wrote:
>>
>> Any masonry interference failures?
>>
>> -----Mensaje original-----
>> De: Juan C. Gray <juangray(--nospam--at)col2.telecom.com.co>
>> Para: seaint(--nospam--at)seaint.org <seaint(--nospam--at)seaint.org>
>> Fecha: jueves, 28 de enero de 1999 12:57
>> Asunto: Re: Earthquake in Colombia.
>>
>> The philosophy behind the Colombian seismic code is pure USA : it
>> evolved from ATC-3 , UBC , ACI-318 , and AISC. This code was developed
>> by some very talented engineers , members of the Asociación Colombiana
>> de Ingeniería Sísmica. The code is periodically upgraded to reflect new
>> developments in this area, or to enforce stricter restrictions that
>> could not be imposed when the code appeared (1984). Before the code , we
>> used ACI-318 and SEAOC recommendations , but this was not mandatory , so
>> there is a very wide and recent gap on what to expect from buildings.
>> The greatest problem you will find in collapsed buildings will not be
>> the quantities of reinforcement , but how the reinforcement is placed .
>> You will be amazed.
>> The code provisions are supposed to be applied in ordinary construction
>> , but there is a lack of people qualified to evaluate and inspect.Some
>> towns do not even have an office in charge of this , and you are able to
>> build whatever you want.
>> The predominant system here is reinforced concrete with moment resistant
>> frames. The newer buildings use the combined system (shearwalls - moment
>> resistant frame) .For newer two or one story dwellings it is brick
>> masonry with confining columns , and for older construction it is brick
>> , or bamboo with earth
>>
>> The predominant failures in buidings : beam-column joint deterioration ,
>> brought by inadequacy of reinforcement . In one story dwellings , there
>> are not enough masonry panels to resist lateral load , so they suffer
>> from absolute instability due to quicq failure of the wall panels , wich
>> usually support heavy roof loads and untreated wood structures.
>>
>> Rodrigo Lema wrote:
>> >
>> >     It would be interesting if there are any Colombian engineers in
>> > this list (I think there are) to comment on the EQ.  For instance, I'm
>> > interested in the following items:
>> >
>> > a) What's the philosophy behind the Colombian seismic design codes?
>> > b) Are they applied in everyday construction?
>> > c) Predominant structural systems & materials.
>> > d) More common types of failures.
>> >
>> >     Also I think it would be great if these colleagues could send some
>> > pictures to post in the seaint wwwsite.
>> >
>> >     TIA.
>> >
>> > Rodrigo Lema, Mendoza, Argentina (We still waitin' for our big one)
>> >
>> >
>> >
>> >
>> >
>>
>>
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